The new Mercury and Air Toxic Standards announced by EPA administrator Lisa Jackson on December 21st require the electrical industry to limit stack emissions of mercury, arsenic and other toxic pollutants that originate from coal and oil-fired power plants and end up in America's air, water and food. Power plants are the largest source of mercury emissions at around 50 tons of mercury pollution annually. Because the particles are heavier than air, the mercury eventually falls back down and is deposited in rivers, lakes and oceans where it is converted into a more toxic form called methylmercury. This builds up in the food chain, meaning that fish at the top, such as striped bass, blue fin tuna and shark, carry the highest levels of the toxin.

The EPA estimates that 11,000 premature deaths and 130,000 cases of aggravated asthma among children annually by 2016 will be prevented, as well as other health benefits. Women, children and the developing fetus are most at risk for serious health problems resulting from mercury exposure. Between 300,000 and 600,000 of the 4 million babies born in the U.S. each year are exposed to significant amounts of the neurotoxin while in the womb.

Using scrubbers and other well-demonstrated technology, the rule requires power companies install equipment or shut down old plants by 2014 with the possibility of an extension into a fourth year. Seventeen states have already required the industry to apply the clean technology. These older US plants, operating mostly in the Midwest and East, can affect our Bay Area waterways and we will benefit from the new rule. However, most of the mercury in the San Francisco Bay enters from spills, the air, or water runoff from land from natural sources and historical mining.

Mercury levels will remain high in many species of San Francisco Bay and some ocean fish as well as other toxins like PCBs. The California Office of Environmental Health and Hazard Assessment (OEHHA) monitored contaminants in chemical contaminants in fish from the San Francisco Bay.

While the EPA rule is good news for Americans, we must be cautious about what fish and how much fish we consume. Some fish from San Francisco Bay like rockfish and smelt are low in mercury and can be safely eaten. Others like wild king salmon are high in Omega-3s that have been demonstrated to be beneficial to human health. Others like sharks, striped bass and other top predators like swordfish and tuna bio-concentrate mercury and should be avoided, especially by women 18-45 and children under 7 years. The point is to ask where your fish is coming from, how was it caught and how much can you eat. A mercury calculator on the "Got Mercury?" website allows one to calculate how much mercury they are consuming and if it exceeds advisory guidelines produced by the EPA.

The "Got Mercury" Campaign, a project of the Turtle Island Restoration network based in Marin County, is building awareness about toxic mercury in commonly eaten seafood. To reduce risk from mercury exposure, "Got Mercury" is asking the government to increase health advisories and reduce action levels for mercury in fish. The program is also petitioning the FDA to lower the legal mercury action level from 1 part per million (ppm) to 0.5 ppm to be in line with the Environmental Protection Agency’s mercury standards for recreationally caught fish and to require seafood sellers to post mercury in fish warning signs.

Bluestem Lake near Lincoln, Nebraska.

Bluestem Lake near Lincoln, Nebraska is five miles north of a coal-fired power plant. It is also one of 85 bodies of water in the state under a consumption advisory because of fish found to have elevated levels of mercury in their tissues. Half of the airborne mercury pollution in the US comes from coal-fired power plants. After years of study and debate, the EPA is planning to announce new limits on mercury from coal plants in November. Ken Winston of the Nebraska Sierra Club believes the agency is doing the right thing.

“When you burn coal, mercury goes up into the atmosphere,” Winston said. “It comes down in the form of rain. Fish eat it. People eat the fish. It can be very damaging and have long term negative impact on the development of children. So it’s something we need to get out of the environment as much as possible.”

The EPA says its proposed new mercury rules could reduce emissions across the country by 91%. Meanwhile, utilities are scrambling to meet other new federal regulations and industry groups are asking the government to slow down. The Nebraska Public Power District operates two coal plants. Under the proposed mercury rule Environmental Manager, Joe Citta, says the utility will need to install equipment that uses activated carbon in order to remove even more mercury than control systems already in place.

Sheldon Station coal fired power plant produces 140 pounds of mercury per year.

“The system is several million dollars,” Citta said. “But what really makes it expensive is the operating cost because activated carbon is rather pricey.”

NPPD will spend 35 million dollars to meet another new regulation reducing smog-forming pollutants that cross state lines. That rule, the Cross-State Air Pollution Rule (CSAPR), was announced in July and takes effect in January. Citta says it requires more cuts than many in the industry expected for pollutants like nitrogen oxides (NOx) and sulfur dioxide (SO2).

“This caught our state, many other states also,” Citta said. When the final rule came out they had reduced those by an additional 40%. Then with only 6 months to comply…We felt the proposed rule was manageable. We would have had to do some things. But they were certainly more achievable than this additional 40% reduction.”

Nebraska utilities feeling rushed by regulation are hoping to get some extra time. The Nebraska Attorney General’s office is working on a lawsuit against the interstate smog rule that a spokesperson says would protect utilities and consumers from costly federal overreach. A bill in the House of Representatives could slow things down by commissioning a study on the economic impact of the EPA’s emissions agenda. Steve Gates of the American Coalition for Clean Coal Energy says it is a reaction to a lot of regulation in a short period of time.

“In a state like Nebraska where 65% of our electricity comes from coal, something is going to happen and the guess is electricity prices go up immediately,” Gates said. “You know, there’s just a lot of economic implications that really should be looked at before we jump into something that no one knows the outcome economically.”

Nebraska rails are a major thoroughfare from Wyoming to power plants in the Midwest and southern Plains. Gates says the state’s economic ties to coal show the advantage of having easy access to inexpensive energy.

“We’re fortunate enough to be in the top ten lowest states for electricity in the country,” Gates said. “What we need to do is find a balance between reducing emissions the best we can while also keeping an eye on what we’re going to do to local economies if we enact something too quickly.”

The EPA claims that the mercury rule will have a positive economic impact in the end by providing health savings of up to $140 billion from reduced asthma, heart disease and other serious ailments. Gates says the EPA underestimates the cumulative impact of multiple rules all coming down at once, particularly in a bad economy. The Sierra Club’s Ken Winston believes power companies are capable of covering costs that they have not paid in the past.

“They can absorb the cost of making these changes much more easily than a person can,” Winston said. “An individual whose child doesn’t develop appropriately because they’ve had mercury poisoning, that’s a life that’s destroyed and we can’t tolerate that.”

Additional Links

• Nebraska Public Power District (NPPD)
• EPA mercury rule
• Nebraska Sierra Club
• Sierra Club – Beyond Coal
• Fish consumption advisories page
• Cross-State Air Pollution Rule (CSAPR)
• Houtson Chronicle – Texas sues EPA to block new pollution rule
• Nebraska AG lawsuit story
• Washington Post – White House threatens veto of House bill to delay EPA pollution rules
• The American Coalition for Clean Coal Electricity (ACCCE)

Another promising dietary supplement fails to deliver protection against a target disease, this time Alzheimer's. Image courtesy of outcast104.

Another promising dietary supplement fails to deliver protection against a target disease, this time Alzheimer's.

DHA (or docosahexaenoic acid for the geekier among you) is an omega-3 fatty acid that is abundant in the brain. Epidemiological studies have suggested that people who consume more DHA from fish have a lower incidence of Alzheimer's disease. Further, DHA supplementation has improved markers of cognitive impairment in mouse models of Alzheimer's disease.

Scientists speculated that DHA supplementation may be beneficial in treating cognitive decline because previous research has suggested that among all omega-3 fatty acids, DHA was the only one associated with a reduced incidence of impairment. Also, the other major omega-3 fatty acid found in fish, eicosapentaenoic acid (EPA), is not present in the human brain, whereas DHA is abundant.

The study, published in JAMA, was a collaborative effort by scientists from the Oregon Health and Science University, UC San Diego, Yale, UC San Francisco, NYU and others. It was a randomized, double-blind, placebo-controlled trial of DHA supplementation in patients with mild to moderate Alzheimer's disease.

The researchers found no benefit of 2 g/day DHA supplementation on cognitive performance on the Alzheimer's Disease Assessment Scale (ADAS) or Clinical Dementia Rating (CDR) compared to placebo. There was also no measurable benefit of DHA on brain volume, which typically declines with Alzheimer's progression.

Though this research does not rule out a benefit of DHA on cognitive health, it does not bode well for regular supplementation. The treatment lasted for 18 months and cognitive changes were detected in both groups. So if DHA had any effect on the rate of cognitive decline it should have been apparent.

It is possible that beginning DHA treatment after early signs of Alzheimer's have already been detected is too late for any meaningful protection offered by DHA. Maybe some benefit would have been found if the treatment began in healthy adults before symptoms of cognitive decline developed.

It may also be that DHA is beneficial, but is not effective in supplement form. DHA is very vulnerable to oxidative damage, and some research has shown that it provides more cognitive benefit when co-administered with an antioxidant (lutein) to protect it. DHA ingested in the form of food (fish) would not be subject to the same level of oxidative degradation, which may explain the results seen in epidemiological data.

It is not uncommon for supplements to fail to replicate epidemiological benefits seem from foods, and more careful studies are needed to determine the nutritional benefit, if any, of DHA on cognitive aging.

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Bay Area smog, 1968

Reported for KQEDnews.org

For those too young to remember the Bay Area 40 years ago, it’s hard to imagine the mostly clear skies that Bay Area residents enjoy today filled with choking smog from factories, cars and garbage fires.

“Air pollution back in the ‘50s and ‘60s was considerably higher than it is today. What you had back then were very elevated levels of ozone, and of particulate matter from heavy industry and automobiles,” said Jack Broadbent, CEO of the Bay Area Air Quality Management District, in San Francisco. ”They used to contribute to levels on the order of three or four times what you see today.“

The Bay Area’s population has nearly doubled since then, to more than 7 million people. But the region’s air has become steadily cleaner. In 1969, there were 65 days when Bay Area air quality exceeded federal health standards. Under those same standards, last year, there wasn’t a single day over the limit.

The reason? The Clean Air Act.

One of the nation’s cornerstone environmental laws, the Clean Air Act turns 40 this week. Sort of.

Although Richard Nixon signed the law in December, 1970, the landmark legislation will be commemorated a bit early at an EPA conference Tuesday in Washington D.C. with a day of celebrations, speeches and public events around the country designed to highlight the public health and environmental benefits from the law.

California has been ahead of the rest of the country in reducing smog. Because of the state’s large population and hot weather, state lawmakers approved the first air pollution regulations in 1946. Since then, California was first to require smog checks for cars, first to ban leaded gasoline, first to require catalytic converters on cars.

“Much of what we’ve done here in the Bay Area is duplicated elsewhere,” said Broadbent. “You can go back east and find our rules just with a different title and different number.”

The Clean Air Act tied all the state rules together. It required the federal government for the first time to set standards for six major types of air pollution: soot, carbon monoxide, lead, nitrogen oxides, sulfur dioxide and ground level ozone, a major source of smog.

Bay Area factory, 1962

The law ushered in a wave of state and federal standards, from scrubbers on smokestacks to the phase-out of leaded gasoline. Some of the results are dramatic. New cars sold today, with computerized emission systems and other high-tech devices, emit 99 percent less tailpipe pollution than cars sold in 1970.

But the job isn’t done, say health experts and air regulators.

Federal standards have become more stringent, resulting in 13 days last year when the Bay Area exceeded the new national standard for ground-level ozone.

Meanwhile, the pollution from trucks and other diesel-powered equipment, called particulate matter (PM), has until recently largely flown under the radar.

Tiny diesel soot particles are inhaled deep into the lungs and have been shown to cause life-shortening health problems ranging from respiratory illness to heart problems, asthma, and cancer. The California Air Resources Board estimates that diesel soot from ships, trains and trucks causes as many as 2,400 premature deaths statewide each year.

In fact, a recent Air District study concluded that exposure to particulate matter of 2.5 microns in width and smaller (PM 2.5) is by far the leading public health risk from air pollution in the Bay Area, accounting for more than 90 percent of premature mortality related to air pollution.

“We have done a great job of reducing smog levels here in the Bay Area. But there are these communities in and around the Bay Area that still of course, we believe, experience elevated levels of toxic air contaminants,” said Broadbent.

The Air District has identified several “hot spots” or communities at much higher risk of exposure to dangerous levels of diesel particulate and other types of air pollution including Richmond, the West Oakland/ Berkeley corridor and Bayview Hunter’s Point.

The Port of Oakland, a major source of particulate matter pollution in West Oakland

Local, state and federal rules have begun to address particulate pollution. In 2006, the EPA mandated the use of ultra-low sulfur diesel fuel. California has also required that all ships within 24 miles of California ports to burn low-sulfur fuel.

“Increasingly we recognize the health impacts of ozone and of particulate matter,” said Dr. Tom Dailey, chief of pulmonary medicine at Santa Clara Kaiser Permanente Medical Center. “That’s why the diesel engine regulations have been so important. None of us can escape the air that we breathe and the idea of getting these pollutants out of our air has been shown to decrease the incidence of heart attacks, stroke, and asthma exacerbations.”

But Denny Larson of the environmental justice organization, Global Community Monitor, says that while these regulations are a move in the right direction, thousands of toxic air contaminants remain unmonitored and under-regulated in the Bay Area.

“Toxic, cancer-causing volatile organic compounds such as benzene and hydrogen sulfide are extremely dangerous to public health and quite present in the Bay Area particularly around oil refineries and other fossil fuel industries,” Larson said. “Right now, we don’t have federal standards like we do for those smog-forming pollutants for those. And there aren’t a lot of requirements to monitor for them either.”

“We have made significant progress in the 40 years of the Clean Air Act,” he added. “But that’s been limited to a very narrow spectrum of air pollutants and has left out almost entirely the air quality concerns and health of millions of Americans who live near industrial facilities.”

The latest frontier in air regulation is in greenhouse gases.

Both the state Air Resources Board and the Bay Area air district are in the process of writing new regulations to control and reduce emissions of greenhouse gases.

“We’ve got a fairly aggressive program,” said Broadbent. “We’ve been looking at cities and counties putting grants out to inventory greenhouse gas emissions as well as to put in strategies that are energy conservation type measures. And we were one of the first in the state, possibly the nation, to put a greenhouse gas fee on businesses emitting greenhouse gases.”

Because transportation is still California's largest source of carbon dioxide, with passenger vehicles and light duty trucks creating more than 30 percent of total climate change emissions, state lawmakers in 2002 passed a new law requiring all new cars sold in California to reduce greenhouse emissions 30 percent by 2016.

And nationally, the EPA plans to significantly expand the scope of the Clean Air Act to regulate greenhouse gas emissions from factories, power plants and other industrial source starting next year.

But the new approach is controversial. Some business groups have argued that clean air laws already are costly for industry, and that a new layer of climate change regulation, particularly in a bad economy, will cost jobs. Proposition 23, on California’s November ballot, would suspend AB 32, the state’s landmark greenhouse gas law, until unemployment falls to 5.5 percent for a year.

“I’m glad we’re celebrating this but in some ways, it’s bittersweet,” said Dailey.  "We still have a long way to go.”

MORE VIDEO & AUDIO:

Watch QUEST TV's Earth Day Special:  Where We've Been, Where We're Headed

Listen to QUEST Radio's Earth Day Radio Special: The History of Environmental Justice

Watch QUEST TV's Perilous Diesel

Listen to QUEST Radio's Truckers Clean Up Their Act

Watch QUEST TV's Asthma: What Brought on the Epidemic?

LISTEN TO KQED NEWS INTERVIEW WITH REPORTER AMY MILLER

Marking a Milestone for Clean Air in the Bay Area and Beyond

Federal officials today are marking a milestone in the fight to clean up the nation's environment. Forty years ago, Congress passed the Clean Air Act. The law aimed to tackle the impact of air pollution from cars, industry, and other sources by setting the first nationwide limits on pollutants. Since then, levels of toxic pollutants like lead, ozone and carbon monoxide have dropped dramatically. But the victory hasn't been complete. Particulate pollution from diesel fuel still represents a widespread health risk and battles are still ahead as regulators take on the task of cutting greenhouse gas emissions. Host Kelly Wilkinson talks about the impact of the Clean Air Act and the pollution challenges ahead with Amy Miller, reporter and producer for KQED's Quest science and environment program.

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Removal of culverts at 12th Street will increase tidal flow into Lake Merritt (credit: Amy Miller)

Reported for KQEDnews.org

Excavators rumbled and dust filled the air in downtown Oakland this week as the demolition of a 12-lane stretch of roadway running along the south end of Lake Merritt got underway.

But the demise of the 2,000-foot long section of 12th Street, dubbed the “world’s shortest freeway” by locals, is more than just a road project. It’s part of the most visible and expensive phase of a multimillion-dollar rebirth of Lake Merritt, an Oakland landmark that gained renown as North America’s first wildlife refuge in 1870, yet which has been plagued for decades by environmental, architectural and public access problems.

For as long as most Oakland residents can remember, the water in the 140-acre lake has been stagnant and polluted. Many of the surrounding historic buildings and structures have been in a state of disrepair. And narrow trails around the lake have been pitted with potholes.

In November 2002, more than 80 percent of Oakland voters approved Measure DD, a $198 million dollar bond measure to fund water quality and parks projects throughout the city. Of that, $115 million was allocated for Lake Merritt.

“Our number one goal is to improve water quality and improve habitat in the lake,” said Joel Peter, the city of Oakland’s Measure DD program manager.

Measure DD Program Manager, Joel Peter (credit: Amy Miller)

“The number two goal is to re-establish connections at the lake. In addition to reconnecting the lake and the bay hydrologically, we’re also trying to reconnect people with nature — because people don’t even realize that the lake’s part of the bay.”

Peter’s task is to oversee more than 50 projects described in the bond. They include restoring creeks and wetlands, improving water quality in Lake Merritt, widening pedestrian and cycling paths and building better roadways to calm traffic around the lake. The project is scheduled to be completed in 2015.

The work on 12th Street is the most extensive piece of the restoration. Crews are reconfiguring the 12-lane road to a six-lane boulevard, lined with trees, a bicycle lane and footpath, all adjacent to a new 4-acre park.

And where an earth-fill dam under the street now restricts the flow of water by forcing it through narrow culverts, a bridge will extend instead, allowing the bay’s tides to flow in and out more freely through a wider channel.

All of this, combined with the other improvements to the area, makes the Measure DD effort what Peter calls “the most wide-ranging and complex series of projects ever undertaken by the City of Oakland.”

Not Really a Lake

Although commonly thought of as a freshwater, man-made lake, Lake Merritt is actually a tidal lagoon that formed after the last ice age where several creeks within the surrounding 4,650-acre watershed empty into San Francisco Bay. The “lake” is connected to San Francisco Bay by a half-mile-long channel, which allows its salty water to rise and fall along with the bay’s tides.

Peter said lack of public awareness about what Lake Merritt really is contributes to the misconception that the lake is actually dirtier than it really is.

“People expect a pristine, clear, Sierra-type lake,” he said. “It’s actually a tidal slough. And if they knew it was salt water and what they are smelling in many cases is just natural things you find around San Francisco Bay in terms of algae growth and mud flats and that sort of thing, actually the water quality in the lake is not terrible before we started this project. But I think that is the perception.”

The heady odor is exactly what Dr. Samuel Merritt smelled in 1854 when the successful San Francisco physician purchased 23 acres around the shoreline of the tidal slough that would later bear his name. Merritt, who became the mayor of Oakland in 1867, was also a shrewd businessman who realized the value of his real estate holdings would increase if the pungent marsh became a recreational lake. So, in 1869, he used his own money to build a dam across the mouth of the slough near where 12th Street is today so that the water level in the lake could be controlled.

The Lake Merritt Channel in 1908 at low tide (credit: Oakland Public Library)

The presence of more than a hundred different species of birds including ducks, geese, pelicans, egrets, herons and cormorants also proved to be a great draw for hunters. To alleviate the dangerous gunfire so close to town, in 1870, Merritt was able to persuade the state legislature to designate Lake Merritt as the first state wildlife refuge in North America.

Over the next century, the lake was dredged. Its surrounding marshlands were filled. And the city of Oakland rose up around its 3-mile perimeter. Bit by bit, the channel that connects the lake to San Francisco Bay, which had been up to a quarter mile wide in some places, was filled in.

Today, the channel is an average 110 feet wide — even narrower where it crosses under 10th and 12th Streets. The steady narrowing has restricted the flow of water in and out of Lake Merritt, which has meant less mixing of the water, and less tidal flushing of the lake, which impacts the health of fish and other aquatic organisms.

The Lake Merritt Channel today at high tide (credit: Amy Miller)

But the encroachment of automobiles may have done the most harm.

“The roadways kept getting pushed wider and wider,” said Peter, “and the lake itself and the park around it was less emphasized. And maintenance has fallen off due to budget issues. It became a bit shabby around the edges. People called it ‘the jewel of Oakland’ but felt it had lost its polish.”

Citizens Unite

By 2001, the problems had reached a breaking point. City leaders commissioned a study called the Lake Merritt Master Plan to look at possible solutions. But the plan excluded the problematic south end of the lake.

This exclusion was likely because at the same time, with the backing of then-mayor Jerry Brown, the Oakland Diocese began a campaign to purchase land in front of the historic Henry J. Kaiser Convention Center at the south end of the lake to build a massive cathedral.

With a group of citizens, graphic designer and longtime Oakland resident Naomi Schiff began to organize against more private development on the lake. “Some of us didn’t feel that it was a good idea for Lake Merritt to become a reflecting pond for a church. Any church,” Schiff said.

Schiff, along with a number of architects, community and historical groups, landscape architects and urban planners, founded the Coalition of Advocates for Lake Merritt (CALM). In the process of worrying about the cathedral, the group’s members made sure to be at the table for Lake Merritt Master Plan meetings. They’d done so much research and made so much noise that ultimately, the city asked them to submit a plan of their own for the south end of the lake.

“And so we did,” said Schiff. “And even though we didn’t have any money or source of funding, we cobbled together a proposal which was to narrow 12th Street to six lanes and put in a park.”

CALM member James Vann was one of the architects who worked on the proposal. “CALM felt that that end of the lake could become a destination if we figured out how to address circulation problems and created areas where people could congregate,” said Vann.

After dozens of brainstorming and outreach meetings, CALM came up with a proposal which had the community’s endorsement. “We also put pressure on the city because this was public land and it could not just be given away for private use. There had to be an open and competitive process,” said Vann.

Their proposal was approved.

“Sometimes you feel like you’re David and Goliath and you’re going to lose but somehow, we didn’t lose,” Schiff said. “Ultimately, it was a good thing that the cathedral people came up with this crazy idea because it galvanized all this creative thinking. And it worked”.

The Kaiser Convention Center and 12th Street demolition at Lake Merritt (credit: Amy Miller)

Frustrated by years of meetings and plans designed to address the problems at Lake Merritt with few results, Oakland City councilman Danny Wan and his successor, councilwoman Pat Kernighan and others got behind the citizen’s group proposal.

They all convinced Oakland to put a $198 million bond measure on the ballot.

Work Begins, Then Stops

After Measure DD passed in 2002, it took the city two years to complete the designs and coordinate logistics. Actual restoration work on Lake Merritt finally started in 2004.

One of the first jobs was to address the lake’s water quality, which “is better now than it has been, especially if you go way back to 120 years ago when the raw sewage came in,” said Richard Bailey, executive director of the Lake Merritt Institute, a non-profit organization contracted by the city to remove floating trash from the lake several times a week.

But the lake is listed as “impaired” under the federal Clean Water Act for trash and low oxygen levels, Bailey said.

“We also have high bacteria levels but we’re not listed for that,” added Bailey.

There are 62 storm drain outfalls that flow directly into Lake Merritt.

“The biggest problem with the lake is not litter, it’s not oxygen, its ignorance,” Bailey said. “People don’t realize that storm drains go directly to public water.”

Bailey and his group of volunteers remove between 1,000 and 5,000 pounds of trash from the lake per month, depending on the season.

Richard Bailey of the Lake Merritt Institute removes all kinds of trash from the lake (credit: Josh Cassidy)

To address the trash problem in the lake, Measure DD has funded the construction of four trash collection units on large storm drain lines to intercept and capture floatable debris and sediment before it gets to the lake.

In another project to improve the lake’s water quality, the Lake Merritt Institute installed three aeration fountains and Measure DD funds repaired one existing fountain around the lake to help reduce the stagnant water in some places. But each of the fountains only treats one acre of water. Lake Merritt covers 140 acres.

Planners are hopeful that the lack of dissolved oxygen in the lake will be alleviated after the completion of another key feature of the project: $27 million to improve the Lake Merritt Channel. Construction will involve removal of the culverts at 12th and 10th Streets that have restricted access for people and water between the lake and the channel for more than 100 years.

“The volume of water exchanged at every tide will be double what it is now,” Peter said. “We’re also creating a new tidal marsh by taking out some of the filled land and grading it very carefully down to the sea level and putting in tidal marsh plants to reestablish some of that original habitat.”

New pedestrian and bike trails will be built to pass beneath a new bridge on 10th Street to connect the 12th Street area with the Channel Park to the west. Funds will also go toward improving Channel Park, which teems with birds and fish yet, is virtually unused because of lack of access from Lake Merritt.

Work on the Lake Merritt channel improvements is scheduled to start early next year.

After getting off to what was perceived by many as a slow start, most of the restoration work around the lake has been moving along as scheduled. But in 2006, parts of the project hit a temporary road block when a group of residents called, “Friends of the Lake,” filed a lawsuit to prevent the city from cutting down dozens of trees around the lake to accommodate the new construction.

In late 2007, after an environmental review determined that the trees could be removed without negatively impacting the ecosystem, the lawsuit was dismissed and work resumed.

Budget issues were also responsible for some delays. At a cost of nearly $54 million, the 12th Street project is by far the most expensive part of the plan. When it was originally bid out in 2005, the construction industry in the Bay Area was booming. The city only received one bid, said Peter, and it was significantly over budget. They had to find another way to raise more money.

It took a couple of years for Peter to make up a funding shortfall with matching grants from agencies such as the Federal Highway Bridge Program and the California Coastal Conservancy. During that time, the recession was hitting and construction bids became much more competitive. Peter had his choice of seven bids, all well within the original budget for the project.

“We had the incredible fortune that Measure DD passed when people were really flush and now we’re spending it when construction costs are low,” said Schiff.

The 12th Street project broke ground on May 6, 2010. It will transform south end of the lake by reconfiguring what was a dangerous and inaccessible 12-lane expressway at the edge of a lake into a 6-lane, tree-lined boulevard with signalized intersections and crosswalks.

The redesign will also create new parkland at the edge of the lake and remove unsafe and unsightly tunnels which have been locked and gated by the city since the early 1990’s.

The work on 12th Street will also establish direct pedestrian, bicycle and boat access from Lake Merritt to Channel Park — setting the stage for what will one day be a direct route from the lake all the way out to the bay.

Lake Merritt’s Road Diet

Many of the Measure DD projects already have been completed. A major part of the renovation involved reducing 4-lane roadways around the lake to two lanes, putting the lake’s major thoroughfares on what is in essence a “road diet” by reducing the number of traffic lanes in order to improve traffic flow. The concept is counterintuitive, planners say, but after running computer simulations of all the traffic around the lake, they figured out how to make it work with better-designed systems.

Two of the affected roadways are Lakeshore Avenue along the southwest side and Lakeside Drive on the southeast. Lakeshore was once a high-speed commute route. By November 2009, it had been reduced to two lanes and bicycle lanes were added in each direction. Better pedestrian crossings, and a 2-way left turn lane in the middle keeps the traffic flowing.

Lakeshore Avenue after going on a "road diet"; Bioswale within the median island (credit: Josh Cassidy)

Many of the historic buildings and structures around the lake already have received major upgrades with Measure DD funds. The Municipal Boathouse was completely renovated to LEED Gold certification, a top green building standard. It now houses the Lake Chalet restaurant on the top floor and public boating facilities on the bottom level.

Similarly, crews rebuilt the East 18th Street Pier and renovated the Pergola and Colonnade, a scenic row of roofed columns built in 1913 that mark the end of the eastern arm of the lake.

Lake Merritt’s beloved Children’s Fairyland received $3.1 million to build a new Children’s Theater and an addition to the Puppet Theater, which holds the distinction of being the oldest professional puppet theater in the United States.

And at several points around the lake, storm drain outlets were redirected so that water from the paved surfaces runs through a bioswale: a gently sloping trough of tall grasses, filtering the runoff through their root structures and a special permeable soil before it goes into the lake. Trails and bike paths also have been widened and repaved with long-lasting, sustainable materials.

Pride But Concern About Upkeep

On a recent sunny August afternoon, Melissa McDonald and Serena Speth, both from Oakland, were sitting on the lake’s edge with their toddlers.

“It’s fantastic, I love it!” McDonald said. “The pathways and the landscaping are so much better and it’s cleaned up a lot. It’s easier to convince people who don’t live in Oakland to come to the lake now.”

Retired Oakland natives Joseph Hardy and Anthony Lefall walk around the lake every day together from 8AM to noon.

“Everybody’s talking about it and it’s all positive from the citizens that frequent the lake, the taxpayers,” said Lefall.

Oakland natives Joseph Hardy (left) and Anthony Lefall walk around Lake Merritt every morning (credit: Amy Miller)

But both said they are concerned about what might happen in the years ahead.

“After they do all this remodeling, it’s the upkeep,” said Hardy. “These potholes, the birds using the bathroom all over the grass where you can’t lay and enjoy it. This graffiti, if you look all these containers all over the place. Why can’t they have someone maintain it? Maintenance, that’s what we’re concerned about. Maintenance.”

Naomi Schiff echoes their concerns. As part of the Measure DD Community Coalition, CALM’s next task is to try to find the funding to ensure that Lake Merritt continues to thrive and shine.

“I see that as the big challenge,” she said. “And the drawback is that we’re going to have to find money and there is never any government money for non-capital improvements.”

Overall, Measure DD will be a big win for Lake Merritt and the passionate residents who call it their own. Architect James Vann said he is looking forward to Lake Merritt finally living up to its potential.
“With the expanded new pedestrian facilities, family facilities that are coming online that it will become truly the gem of Oakland, Oakland’s jewel and we’ll see many more uses than are there today. That’s my hope.”

View Lake Merritt in a larger map
Google Map produced by Josh Cassidy

37.80363553885589 -122.25869178771973

You can never really say enough about everything that's wrong with bottled water (which, by the way, adheres to lower safety standards than what comes out of your tap-– sorry, couldn’t resist!). But when it comes to drugs in the water, what strikes me as most interesting is what we know the least about: What do these tiny, tiny amounts of drugs mean to us humans?

"The dose makes the poison" is a mantra I hear constantly from public health experts (as well as my editors)– and it's worth considering. In other words: just because something exists does not mean it's affecting you. It's likely we're exposed to far more toxins in the act of, say, applying nail polish, or pumping a tank of gas, than we'll imbibe over a lifetime of drinking tap water. But it'll be interesting to watch this play out over the next decade or so, as scientists on all sides of the debate try and figure out what exactly effect our environment-– pharmaceuticals, nail polish, plastics, and countless other everyday substances– is having on us.

Listen to the Drugs In Our Drinking Water Radio report online.

37.248999 -121.874981

Low winter light over the town of Iqaluit,
the capitol of Nunavut,Canada. Photo by Bill Semple,
architect and senior researcher at the Canada Mortgage
and Housing Corporation.

Among home performance professionals, we also call the systemic approach, the whole house approach. For example, we think it is best to retrofit your home to make it more energy efficient before you invest in an expensive solar electric, or PV, system. You can buy a smaller PV system that way, and draw less energy from the electric grid. We think you should switch to CFL bulbs right now, buy Energy Star appliances when you need new appliances, and before the next hot summer have a home performance professional air seal your attic and add insulation. Make sure the contractor checks to see if you have proper ventilation in your home after air sealing-otherwise your gas appliances may back draft nasty things like carbon monoxide into your living spaces. Don't go out and buy new windows, no matter what the advertisers tell you, until your old windows are worn out. In other words, do it all, but when the time is right.

There is a debate going on in our country about how to solve our energy and environmental problems. Some say corn ethanol is the answer; others say it's cellulosic ethanol. Some say wind energy and some say solar energy; some say more government regulation is the answer and some say let the free market decide. These either/or approaches are wrong in my book. The more we are divided in our passion to solve our problems, the less likely we are able to solve them. The best-built homes are the ones in which all the parts-building site, building envelope, walls, foundation, attic, roof, HVAC system, appliances, lighting, and people-work in harmony and are most adaptable to change.

Tom Friedman also said in his talk at Berkeley Lab that writing in blogs about solving our energy problems is not enough. In our March/April 2008 issue of Home Energy we will publish a story about home building in the far north of Canada, within the Arctic Circle. The Inuit people who live there are already building to adapt to the climate change that is already occurring, as well as preparing for more climate change in the future. They are building homes that are culturally appropriate. They are also building in a way that will reduce as much as possible the emissions of greenhouse gases that are causing climate change. Amen to that! Amen to the systematic approach!

Jim Gunshinan is Managing Editor of Home Energy Magazine. He holds an M.S. in Bioengineering from Pennsylvania State University, State College, Pennsylvania, and a Master of Divinity (MDiv) degree from University of Notre Dame.

You may listen to the "Super Laser" radio report online, as well as find additional links and resources. Also don't miss our behind-the-scenes photos for this report.

Amy Standen is a Reporter for QUEST and Radio News at KQED-FM.

latitude: 37.6871, longitude: -121.697

The typical dose of mercury in a CFL is about the size
of a pen tip (circled in red), and these doses
have been getting smaller and smaller.
(Photo provided by EPA.)Australia has already begun to phase out the incandescent light bulb, and the energy legislation recently signed by President Bush has begun that process in the United States. Every time I turn around, it seems, someone is handing me a brand new compact fluorescent light (CFL) to advance the cause of energy efficiency and help save the planet. CFLs are becoming ubiquitous in households all over California. We taught them in the pages of Home Energy all the time. And that's a good thing, right?

Brandy Bridges, of Ellsworth, Maine may not think so. A cleaning company quoted her a price of $2,000 to clean her house after she broke a CFL.

The benefits of CFLs are many–they use about 75% less energy than incandescents and last up to ten times longer. Replacing a 75W incandescent with an 18W CFL will save you about $46 in electricity costs over the life of the bulb, and that is at current electricity prices, which no doubt will go up, making today's CFLs an even better deal. Energy Star CFLs (www.energystar.gov/cfls) won't flicker, give warmer light, and there are a variety of them, from the ubiquitous A-line bulb, to candelabras.

But, and it's a big but, CFLs won't give light without mercury. The average CFL on the shelf at your local hardware store has about 4 mg of mercury in it. Mercury vapor is harmful to humans, and there is enough mercury accumulated in some of the fish we eat to make this Californian think twice about ordering salmon for dinner.

Thankfully, there are ways to clean up a broken CFL that don't involve an overly frightened and/or greedy cleaning company (www.epa.gov/CFLcleanup), and recycling centers are available, if not yet ubiquitous (that word again!) (www.lamprecycle.org).

Even if the worst happens and you break a CFL bulb, the EPA estimates that at most only 6.8% of the 4 mg of mercury will be released, or about 0.27 mg, since most of it is in the glass, electrodes, and in the phosphor coating on the inside of the glass. Incinerating a bulb will potentially release more mercury vapor, if there are no pollution controls on the incinerator.

But even if the CFL released all of it’s mercury–according to Richard Benware, a graduate student at Cornell who researched CFLs last summer for EPA's Energy Star program–it would still be a better choice than an incandescent, because over its lifetime, the 15W CFL will have prevented the release of 5.67 mg of mercury from an average power plant.

Of course, recycling is best, and that is still a problem. Alan Meier, Home Energy's senior executive editor, admits to turning part of his garage into a "temporary hazardous waste holding facility" to hold his family’s used CFLs, since the nearest CFL recycling center is 13 miles away from his home in Berkeley, through "one of the worst traffic jams in the United States." There is help in finding those recycling centers, near and far (www.earth911.org). But we need to put the same effort used in making CFLs ubiquitous into making disposing of them in a clean safe manner just as ubiquitously easy.

You know what I mean.

Jim Gunshinan is Managing Editor of Home Energy Magazine. He holds an M.S. in Bioengineering from Pennsylvania State University, State College, Pennsylvania, and a Master of Divinity (MDiv) degree from University of Notre Dame.

latitude 37.8686, longitude -122.267

You may listen to the "Relaxing the Rules on Toxic Reporting" Radio report online, as well as find additional links and resources.