Lead
Science Outpacing EPA Lead Contamination Standards
People who don't know any better expect agencies that are charged with removing environmental threats to public health to be on top of the best and most recent science. However, because of the glacial pace of government environmental oversight, that's hardly ever true. It takes years, and sometimes decades for "safe standards" to be updated or created. When they are, they're sometimes instantly obsolete because a new generation of studies has shown harm at even lower levels of exposure. This is why impacted citizens have to have a DIY philosophy to seek out the most recent science themselves – you can't depend on government to have already incorporated it or be using it as a guide.
A particularly depressing example is the way the US EPA is dealing with lead contamination and its soil and dust standards. The last time these were updated, Bill Clinton was President. There's been a lot of science produced on lead poisoning since then and all of it points to lower and lower levels of exposure causing harm. In fact, there's a consensus among researchers that there is NO safe level of exposure to lead. It's not that every exposure will harm you, it's that every exposure is capable of doing harm – especially to children.
There's also overwhelming public policy consensus that exposures to lead should be minimized as much as possible. Reducing exposure to lead is now linked, not just to better physical health, i.e. less cancer, liver disease, etc., but to higher IQs and test scores in schools, less anti-social behavior, and even less crime. In California, the lead standard for soil has been reduced to 80 parts per million, compared to the circa-2000 EPA standard still in place of 400 ppm.
Acting in recognition of these facts, for the first time in over 20 years the federal Centers for Disease Control revised its lead-in-blood standard for children in 2012, cutting in half the amount it said should trigger a response from parent and doctor. As a consequence, the EPA's own Children's Health Protection Advisory Committee sent a letter to then-Administrator Lisa Jackson calling for the agency's "immediate and urgent attention" to revise the nation's lead dust and soil standards because they had been based on the previous, now-obsolete CDC standard.
But in the latest installment of her year long award-winning series of articles on the topic, USA TODAY's Allison Young quotes EPA officials as saying they have no current plans to update those standards to reflect the new CDC lead in blood action level. This, despite studying the issue since 2009. What difference does it make?
In places like Frisco, Texas that experienced decades of lead contamination from a poorly and often illegally-operated lead smelter, it means the EPA will allow what it knows to be dangerous levels of lead to remain in soil and dust that otherwise would have to be cleaned-up.
This is Exhibit A why citizens cannot leave environmental protection to government agencies alone. This is why Frisco residents, organized by Frisco Unleaded, are trying to intervene directly in the closure and clean-up of the Exide lead smelter. If you leave it up to the state or EPA, you won't have the best science, or the most protective clean-up. You will have settled for whatever government standard was in place at the time, no matter how outdated or unsafe. If you're a parent in Frisco, that shouldn't be YOUR standard.
Former Exide Smelter Employee: It WAS as Crappy As You Thought
Although the Great Dallas Drilling Scandal has kept our heads spinning lately, we did mange to take note of a rather big story in a small paper that should get a lot more coverage.
On February 21st, the Frisco Enterprise-Plano Star community newspaper published an article about the Exide lead smelter in Frisco using an unnamed ex-Exide employee as the sole source. The sole source's anonymity probably kept major outlets from offering the same coverage, but in this case the specifics are so compelling that we're glad the suburban chain took the chance.
Although he never gives his name, the Star says the employee "served in a managerial position at the plant." From the workday scenarios he describes he appears to have been directly involved in Exide's production line. Taken together, all of the accounts he gives the paper would seem to confirm residents' impression that the circa- mid 1960's Frisco facility was a mobile home park with a lead smelter in the middle of it.
"I guess we were probably producing $200,000 worth of product every shift — $600,000 worth of product every day," he said. "Yet [one time] we had six people working on [maintenance when the plant lost power]. We had one flashlight and one set of tools. What I needed was six flashlights and six sets of tools, but they wouldn't even give me that."
If Exide wouldn't open up the corporate wallet for flashlights, no wonder the company balked for so long about adding multi-million pollution controls to reduce lead emissions to legal levels.
And, according to the Star's source, those lead (and cadmium and arsenic) emissions could be many times what's been officially estimated by government agencies, or even citizens' own air modeling results published last year.
Power being knocked out was a particular issue, the source said, as vapors resulting from the lead-acid recycling system were no longer captured. Those vapors include lead particles, and long periods of lead exposure result in chronic lead poisoning, which in turn can result in physical defects such as kidney damage.
The former employee doesn't say how often this kind of outage occurred, but he makes it clear it wasn't infrequent. It wouldn't take too many such incidents to significantly raise the exposure level of those residents living downwind. Of course, when the state and EPA are calculating what constitutes "safe" levels of exposure to a facility's pollution, they never take into account these kind of "upsets" or accidents that can balloon the chances of inhaling harmful poisons.
Among the other allegations made by the ex-employee:
Only 1/5 of the violations Exide received "for a lack of federal compliance or unsafe working conditions" were forwarded to the Texas Commission on Environmental Quality.
Incident reports submitted to the state about violations represented "a great difference in the truth" between what was being claimed by Exide, and what really happened.
These incidents were as frequent as every other week.
Prior to the announced visits of TCEQ or EPA inspectors, "employees were paid overtime to clean the plant extensively. The same initiative was made before visits by non-plant employees, such as trips by corporate managers. Outside of those events, however, the plant was rarely cleaned."
Carbon dioxide monitors were constantly beeping, indicating dangerous CO2 levels. "The environment of operations was poisoning us."
Ah, but all of that is in the past, right? Not with Exide planning to leave over 9 million pounds of lead smelter waste behind on 90 acres in the middle of central Frisco, with another hundred acres or so outside of that donut hole" being purchased by the city for rehabilitation.
When asked if he would feel comfortable visiting the land Frisco purchased from Exide when it's remediated to federally compliant levels, the former employee said he wouldn't.
"With the way it's going right now, I'll never take my children or my dog to that area," he said. "I studied petroleum engineering and geology in college, and I know the bad stuff sinks to the bottom. I will never [go there]. It'll be nice to have it gone, but I don't know how you patch that up. You have to pull up everything, wrap it up and get it gone."
Official reaction was predictable:
"An Exide Technologies spokeswoman said the company "does not comment on unsubstantiated hearsay"…"A TCEQ spokeswoman said she could not comment on whether or not an employee signing an incident report with false information would be illegal without being told what reports are in question."
It'd be better if former employees like this came completely forward and were willing to cooperate with the EPA in exchange for immunity, but we're grateful for the peak inside Exide. It confirms not only what we already suspected about the way this company and this plant did business, it also once again confirms the way all bad acting polluters behave when it comes to hiding their real identity from the public and regulators.
Shorter DMN: Citizens Demanding Frisco Smelter Clean-Up Hate Mexican Children
Because closing illegal smelters in your own backyard forces the corporations to build unsafe facilities in other places….or something like that.
EPA Challenges State Clean-Up of Frisco Smelter Waste
Despite denying that it was submitting comments on the state's plan for cleaning up the recently closed Exide lead smelter, the Environmental Protection Agency turned in a sometimes scathing assessment of Austin's proposal to allow the company to treat prohibited hazardous waste that still lies buried in its landfills in Frisco.
"The landfill is not permitted or constructed as a hazardous waste unit. Please clarify the regulatory/statutory provisions TCEQ is following that would allow for treatment of hazardous waste in the landfill," wrote EPA Associate Director Susan Spalding in a five-page letter sent to the Texas Com mission on Environmental Quality (TCEQ) on January 25th.
News of the Agency's comments comes on the eve of a public meeting scheduled by Exide for Wednesday night at the historic Frisco Depot to explain its clean-up operation.
Besides criticizing the on-site treatment of the hazardous waste, EPA also had a harsh review of the way Exide and TCEQ had identified areas of the current landfill with concentrated lead wastes that needed treatment, suggesting four times as much sampling as the company had proposed, and TCEQ had approved.
EPA also noted that a closed landfill in Frisco was already leaking hazardous levels of lead and selenium and suggested that the treatment method Exide is using in its current landfill was not going to be effective.
But in what may be a crushing blow to the company's plans to keep the wastes it generated for almost five decades buried in Frisco permanently, EPA stated that if the current landfill had been used for disposal after 2011 sampling to determine clean-up, which it almost certainly has,"This may require removal of all material" in the landfill.
Many of the problems cited by the Agency are the same ones citizens have been complaining about since Exide announced its unusual scheme to try to treat its illegal hazardous waste in place in its Frisco landfill, instead of digging it up and re-burying it in an official, licensed hazardous waste disposal site.
Exide does not have a permit to handle or dispose of hazardous waste. It's landfill is classified as a "non-hazardous waste" disposal site. The hazardous waste inside of it was discovered by inspectors several years ago.
Citizen groups have said Exide must apply for a full Resource Conservation and Recovery Act permit in order to deal with its prohibited wastes. EPA's letter seems to suggest that the Agency agrees.
Besides commenting on the landfill plans, EPA's letter also seeks changes in the dust controls guiding the smelter clean-up, and the public release of information about the clean-up.
Copies of the EPA letter can be downloaded from the Frisco Unleaded website here.
"We're very appreciative that EPA changed its mind and decided to comment on the ridiculous plans by Exide and TCEQ to use the same treatment method on this hazardous waste that failed to work the first time," said Colette McCadden, Chair of Frisco Unleaded, the citizens group who successfully campaigned to close the old smelter last year.
"We hope the EPA continues to provide needed oversight to what Exide and the state are doing – or not doing."
Other groups were more cautious.
"It's a pleasant surprise to see EPA comment so bluntly about the more absurd parts of the proposed Exide clean-up," said Jim Schermbeck of Downwinders at Risk. "My hope is that this is only the beginning of a new level of review for Exide by the Agency in light of the USA Today's "Ghost Factory" series chronicling what happens when it's not paying such attention. Only time will tell."
They’re Not Asking Your Permission
Exide and the State are planning Frisco's future without it's residents.
This Wednesday night may be one of the few times they can object in person.
Plans are proceeding for Exide to leave landfills full of its lead smelter waste in Frisco….forever
Landfills of lead on the edge of downtown that will pose a constant public health threat and economic dead zone
Landfills of lead along the banks of Stewart Creek as it flows downstream into the City's new "Grand Park"
Join us in saying no to their lead-filled future of Frisco.
Exide's Public Meeting on their lead smelter "Clean-up"
THIS WEDNESDAY NIGHT
7:00 pm
Frisco Depot
6499 Paige Street
(in the Historic District by Babe's)
Whether Frisco residents like it or not, Exide and the State of Texas are deciding to let millions of pounds of lead waste stay buried in Frisco forever – and the current City Council isn't trying to stop them.
While the city bought the less-contaminated outer ring of the Exide lead smelter, the most toxic part of the facility is still owned by Exide.
The City of Frisco has said that it won't interfere in the way the company and state decide to handle the tons of lead waste buried in this area, which stretches from Stewart Creek to the edge of downtown.
Exide, the state, and this city council are all deciding that it's easier just to leave lead contamination permanently buried in place in the middle of Frisco instead of moving it away from people and flowing water.
If citizens don't show up and fight back against these plans, Frisco residents will be dealing with lead contamination issues for decades – just like other communities that didn't have their lead smelter waste cleaned-up completely either.
A former Exide smelter site still sits abandoned in Dallas, some two decades after it closed, surrounded by monitoring wells and a chain link fence. We can't let that happen here.
Many residents sent e-mails to Exide last week saying they wanted a complete clean-up of its lead waste in Frisco. Now they need to come in person with the same message.
Frisco residents have to stand up for their home and community. Nobody at Exide or in government is.
Public Health Action Alert – Exide’s “Community Meeting” on Wednesday
Please come and insist that the clean-up of the Exide lead smelter be open to public notice and comment, and not done behind closed doors.
Exide is hosting a hastily called "public meeting" on demolition and dust control plans for its former Frisco lead smelter Wednesday night beginning at 7 pm at the Frisco Depot in the Historical District, 6499 Paige Street.
Among other things, Exide wants to permanently leave a waste landfill in central Frisco with approximately nine million pounds of smelter waste inside, instead of trucking it out.
The city is letting the company have its way, even though this landfill in downtown will be an impediment to economic development and a constant threat to groundwater and air contamination that will demand never-ending monitoring.
All of the decisions about the clean-up of the smelter site are taking place behind closed doors with no public input or notice.
Last Friday the company submitted its plan for the permanent hazardous waste landfill and got it approved the very same day without any public notice or comment.
Wednesday's meeting is about a demolition plan that has already been written by the company without listening to any public concerns. They're only letting residents know about it after the fact.
We know it's the holiday season – that's why Exide scheduled this meeting. The company hopes you've quit paying attention. We hope you haven't.
There's a lot of dangerous material on the Exide site. If it's not disposed of correctly, Frisco could have an economic and public health black hole in the middle of town forever, what USA Today called lead "ghost factories." That's why this is important.
Meanwhile, the city of Frisco is protecting your interests by…being a silent partner to Exide's plans. City Hall has defaulted to the state and the company's judgment and isn't acting as an independent watchdog.
The City is writing press releases with Exide, but it isn't asking hard questions about the clean-up, or hiring its own experts to double-check what Exide and the state are proposing. It isn't demanding public notice or comment on behalf of residents. In fact, the city is keeping information about the clean-up and smelter to itself, refusing to post it online or release it to residents or reporters.
Come to the Wednesday night Exide meeting to express your displeasure with a strategy that's putting the same people responsible for creating the Exide mess in charge of "cleaning it up."
At this point we need the same public pressure that caused the city to change course and close the outlaw smelter to help open the closed doors that are hiding the clean-up process from public view.
Good Friday: Exide Smelter Closing Today
Sometimes, all it takes is the slightest push of an index finger, or a focused exhaling of breath.
Sometimes the house of cards is so precarious, so unstable, that any challenge, no matter how slight, can send the established structure to the ground.
A year ago a small, newly-formed citizens group that had just staged its first action was struggling to convince the City of Frisco to quit supporting co-existence with an outlaw lead smelter and instead kick it out of town.
Today, that smelter will stop operating.
Community activism rarely pays off as quickly or as spectacularly as it has with the curious case of the Exide lead smelter. But when it does, it's reason to pause and give thanks and remind ourselves that such things are still possible.
Because truth be told, this historic effort was directed by a group of Frisco residents that was never larger than 10 people strong. Please just think about that. Less than a dozen people challenging their local status quo are responsible for this huge victory for public health.
Downwinders' often tells its supporters that, like the Woody Allen quote about life, 90% of social change is about just showing up. The system so often goes completely unchallenged, that you'd often be surprised what happens when you just show up and start asking embarrassing questions. When you start poking at the house of cards.
As their campaign proceeded, this small group of committed people attracted the support of hundreds, and then thousands of their fellow residents. They forced the city to see the contradiction between the continued operation of a circa-1960's smelter and the reality of 2012 Frisco. They held up a mirror and re-framed the relationship between smelter and town. And the contradiction was so great, so at odds with the new perception of Frisco, that the established political support the smelter had enjoyed in town for decades dried up. Young couples with kids concerned about a lead smelter they never heard of before outnumbered Good Ol Boys in City Hall and the Chamber of Commerce. The old establishment was undone by the very demographics of change they'd unleashed a decade or so earlier.
There is still much work to do. A half-century of contamination blankets the smelter site, as well as an undetermined number of off-site "hotspots." Exide wants to leave a permanent landfill behind in the middle of Central Frisco, while the City is breezing along with plans to turn a piece of land right across the street from the smelter site into the city's largest park. Downwinders will be helping citizens monitor the cleaning-up of the smelter site for at least the next two years.
But as of today there is no more lead pollution coming out of the Exide smokestacks. No more daily fallout of poison. No more new layers of lead being laid down in the topsoil of Frisco. That is a pretty remarkable thing considering where we were 365 days ago.
So raise your glasses tonight to the hardy folks of Frisco Unleaded and the improbability of the impossible happening in record time. Here's to Colette McCadden, Henrik Ax, Shiby Matthew, Matt Vonderahe, Jeannette Sandin, Meghan Green, and Eileen Canavan, all residents who decided they would stick their neck out and start showing up and asking questions, much to the consternation of the Powers That Be. May they all have Frisco parks, and schools, and streets named after them.
It's not always this easy, but the fact that it was this time should give us hope about the power of pushing back.
Hell Freezes Over: Why the New Federal Report on Midlothian Matters
Everything in italics and "quotation marks" below is a direct quote from the latest chapter of the ATSDR's (Agency for Disease Registry and Toxic Substances) "health consultation" on the impact of certain kinds of industrial air pollution on the local population.
You should take five minutes to glance over the sentences. They've taken a better part of a decade and a great deal of citizen persistence to make it to print. You can read them now only because of a petition to ATSDR by local Midlothian residents, spearheaded by Sal and Grace Mier in 2005, prompted the Agency to get involved.
They're also rarer than hen's teeth. Because the words actually come together in sentences to conclude human health was likely harmed by the pollution from Midlothian's three cement plants and steel mill, as well as recommend decreasing that pollution.
Among grassroots activists, ATSDR has a notorious reputation for issuing reports that are "inconclusive by design." The joke is that the agency never met a facility it couldn't learn to live with. And sure enough, previous chapters in this saga have disappointed. Just two years ago, ASTDR's shoddy work in investigating health impacts in Midlothian and elsewhere across the country was the subject of a Congressional hearing.
These ATSDR reports generate no new data. Instead, they are retrospective looks back at the available sampling/monitoring information and a piecing together of possible exposure paths and levels. As such, they're only as good as the data they can digest. In Midlothian's case, that means they're completely dependent on state monitoring – criticized by citizens for years as being inadequate. Nevertheless, with this latest report, citizens have been somewhat vindicated because of what even that inferior sampling revealed.
The health impacts described in this latest report are also limited to what are called "Criteria Pollutants" – old school substances like lead, soot, sulfur dioxide, and ozone that have been regulated by the Clean Air Act for decades. They do not apply to more exotic kinds of air pollution like endocrine disruptors, which there's little or no monitoring for at all.
So there are a lot of missing pieces, but the ATSDR's conclusions and recommendations have an impact on your lungs and maybe your own local fight, even if you don't have a Midlothian zip code. For the first time a federal agency known to avoid coming to any conclusion about anything was forced to say that human health was adversely affected by the operations of industry in Midlothian.
There's a public meeting on this report on December 6th from 7 to 8:30 pm at the Midlothian Conference Center.
Health Consultation/Assessing the Public Health Implications of the Criteria (NAAQS) Air Pollutants and Hydrogen Sulfide MIDLOTHIAN AREA AIR QUALITY MIDLOTHIAN, ELLIS COUNTY, TEXAS
NOVEMBER 16, 2012 U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES
Agency for Toxic Substances and Disease Registry
Division of Community Health Investigations
Recommendations:
"Texas Commission on Environmental Quality (TCEQ) should take actions to reduce future SO2 emissions from TXI to prevent harmful exposures."
"TCEQ should take actions to reduce future PM2.5 emissions from TXI and Gerdau to prevent harmful exposures."
"TCEQ should continue efforts to reduce regional ozone exposures."
"TCEQ should insure that levels of these air pollutants do not increase to levels of concern in the future."
"TCEQ should conduct ambient air monitoring to characterize exposures to persons located downwind of the Ash Grove and Holcim facilities and take actions to reduce SO2 emissions from these facilities if harmful exposures are indicated."
"TCEQ should conduct appropriate ambient air monitoring to characterize exposures to persons located downwind of the Ash Grove and Holcim facilities and take actions to reduce PM2.5 emissions from these facilities if harmful exposures are indicated. In addition, particulate matter monitoring is needed in residential areas that are in immediate proximity to the facilities’ limestone quarries."
"In ATSDR’s judgment, one notable gap in monitor placement is the lack of monitoring data for residential neighborhoods in immediate proximity to the four industrial facilities, where fugitive emissions (those not accounted for in stack emissions) likely have the greatest air quality impacts."
Human health was likely harmed, and is still threatened by industrial pollution from Midlothian
From Sulfur Dioxide:
"Breathing air contaminated with sulfur dioxide (downwind of TXI's cement plant and the Ameristeel steel mill) for short periods could have harmed the health of sensitive individuals.…ATSDR cannot determine if harmful exposures to SO2 have been occurring downwind of the Holcim and Ash Grove facilities."
"All 24-hour values in Midlothian were lower than EPA’s former standard. However, the World Health Organization’s health comparable guideline is 8 ppb (WHO, 2006). This value was exceeded at both the Midlothian Tower and Old Fort Worth Road stations in most years of monitoring through 2008…"
"Overall, in the years 1999 to 2001, Old Fort Worth Road (monitoring site north of TXI) ranked among the stations with the highest 24-hour average sulfur dioxide concentrations in the state. As sulfur dioxide emissions from TXI Operations decreased in following years, so did the measured concentrations at this station."
From Particulate Matter, or Soot:
"Public health concern is warranted for adverse health effects from long-term exposure to PM 2.5 in Cement Valley"
"In the past (1996–2008), annual average PM 2.5 levels measured were just below the range of concentration proposed by EPA for lowering the annual average standard…Moreover, many of the annual average PM 2.5 concentrations were above the more conservative WHO health guideline (10 μg/m3)."
"No PM 2.5 monitoring data are available to evaluate exposures downwind of the Ash Grove facility. Furthermore, although annual average PM2.5 levels detected at the Holcim monitor indicate possible harmful levels…."
"We estimated that annual average PM2.5 levels in the vicinity of the Gerdau Ameristeel monitor, from 1996 to 1998, could have ranged from about 22.6 to 26.4 μg/m3, which is above both the current and proposed EPA standard. Using EPA’s approach, the 3-year average level might have been above the NAAQS standard of 15 μg/m3 for these years in the vicinity of the Gerdau Ameristeel monitor. Applying this same approach to annual average PM10 data from other monitors suggests that PM 2.5 levels could have been close to the current and proposed PM2.5 standard, especially for the Wyatt Road, Old Fort Worth Road, Gorman Road, and Midlothian Tower monitors."
"Consistent with the other pollutants discussed earlier, the estimated annual PM 2.5 emissions listed for these facilities are among the highest for Ellis County and also rank high among industrial sources statewide."
From Lead:
"Past lead air exposures during the period 1993 to 1998, in a localized area just north of the Gerdau Ameristeel fence line, could have harmed the health of children who resided or frequently played in this area….In the mid-1990s, the lead levels measured in this area ranked among the highest lead concentrations measured statewide."
From Smog:
"Scientific studies indicate that breathing air containing ozone at concentrations similar to those detected in Midlothian can reduce lung function and increase respiratory symptoms, thereby aggravating asthma or other respiratory conditions. Ozone exposure also has been associated with increased susceptibility to respiratory infections, medication use by persons with asthma, doctor’s visits, and emergency department and hospital admissions for individuals with respiratory disease. Ozone exposure also might contribute to premature death, especially in people with heart and lung disease. School absenteeism and cardiac-related effects may occur, and persons with asthma might experience greater and more serious responses to ozone that last longer than responses among people without asthma."
"The Midlothian Tower site recorded ozone concentrations above the level of the NAAQS for several years (TCEQ, 2011b), and the Old Fort Worth Road site has been measuring ozone concentrations close to the level of the NAAQS. Based on the data from both monitors, from August 1997 to September 2011, the 8-hour EPA ozone standard has been exceeded 236 times."
From Breathing Multiple Pollutants:
"ATSDR believes that sufficient information exists to warrant concern for multiple air pollutant exposures to sensitive individuals, especially in the past….The ability of the scientific community to fully and quantitatively evaluate the health effects from the mixture of air pollutants people are exposed to is at least ten years away (Mauderly et al., 2010)……The current state of the science limits our ability to make definitive conclusions on the significance of simultaneous exposures to multiple criteria air pollutants. ATSDR’s conclusions are based on our best professional judgment related to our understanding of the possible harmful effects of air pollutant exposures in Midlothian and our interpretation of the current scientific literature; therefore, these conclusions are presented with some uncertainty."
From New Production:
"Reductions in SO2 levels in Cement Valley have occurred since late 2008 resulting in exposures to both sensitive individuals and the general public that are not expected to be harmful. These reductions may be caused, in part, by declining production levels at local industrial facilities. Future harmful exposures in Cement Valley could occur if production rises to at least previous levels and actions are not taken to reduce SO2 emissions."
Regulatory "Safe Levels" Very Often Aren't
"Past SO2 exposures were not above the Environmental Protection Agency (EPA) standard in place at that time but were above the current standard."
"Past lead air exposures were not above the EPA standard at that time but were above the current standard.…The scientific community now believes that the current standard (15 μg/m3) for fine PM (measured by PM2.5) is a better indicator of possible long-term health effects from PM exposures than was the former EPA annual average standard for PM10 (EPA, 2006b)."
ADHD Symptoms More Likely in Children with Lead or Mercury Exposures
This in directly from Environmental Health News:
Children exposed to higher levels of mercury or lead are three to five times more likely to be identified by teachers as having problems associated with Attention Deficit Hyperactivity Disorder, according to a scientific study published today.
The study, of Inuit children living in Arctic Canada, is the first to find a high rate of attention-deficit symptoms in children highly exposed to mercury in the womb.
In addition, the Inuit children more often had hyperactivity symptoms if they were exposed to the same low levels of lead commonly found in young U.S. children.
Laval University scientist Gina Muckle said the findings are important because they show for the first time that the effects of mercury in children are not just subtle, but are actually noticeable to teachers. They “may be clinically significant and may interfere with learning and performance in the classroom,” the study says.
For lead, the school teachers reported much more frequent ADHD symptoms at levels far below the CDC's newly developed health guideline. Dr. Bruce Lanphear, of Simon Fraser University in Vancouver, said evidence is mounting that toxic compounds are “shifting children’s behavior...There seem to be a whole host of different toxicants that are associated with ADHD."
One of the most intriguing findings was that mercury was linked to attention deficits while lead was associated with hyperactivity. The difference may be the timing of the exposures: in the womb for mercury and during childhood for lead. The findings "suggest the brain may be sensitive to different environmental chemicals at different times in development," said Harvard epidemiologist Joe Braun.
First, there are no safe levels of lead, but teachers being able to identify ADHD behavior among kids who have levels of exposure "far below" even the new CDC recommendations is disconcerting indeed.
Second, this is why coal plant and cement plant rules to reduce Mercury and lead emissions as much as possible are a good thing and must be implemented ASAP, not delayed.
Third, none of these symptoms have ever been included in an official risk assessment of any cement plant, lead smelter, gold mine, coal plant or any other facility releasing lots of these metals into the environment. EPA regulations lag decades behind the science in terms of plugging in toxicological effects identified in the scientific literature. Over-regulated? No, not even close when you have no idea what kind of health problems your facility is causing.
Finally, the country is seeing an epidemic of ADHD. We express official dismay at this, but as far as we know, little if any attention is being paid by industry or government to try and prevent the condition through limiting exposure to toxins that can cause it, even though, "there seem to be a whole host of different toxicants that are associated with ADHD."
This is not a fatal condition. It's not a disease like cancer, or as serious as a heart attack or stroke. But does anyone doubt the challenges facing a child with moderate to severe ADHD symptoms?
This is one more consequence of pollution you never see in the paperwork, only in real life.
Lead Exposure Linked to Gout
Since Downwinders was asked to help Frisco residents relocate a 50-year old lead smelter last year, there's been one study after another linking lead exposure to a variety of new health effects. This month it's gout.
"Even relatively low levels of lead in the blood may be linked to an increased risk of gout, a painful form of arthritis, researchers reported Monday.
"All of this suggests there's no such thing as 'safe' or 'acceptable' lead levels," said study leader Dr. Eswar Krishnan, of Stanford University School of Medicine in Palo Alto, California.
No one is going to be doing a health survey in Frisco anytime soon looking for increased rates of gout, or liver damage, or cancer, or lower IQ levels. Once a facility like the Exide lead smelter puts poisons into the air, they cannot be recalled, nor the damage they create. Because we don't know all the damage their poisons can create. But that doesn't keep companies or governments from approving the release of them into the air. Years later, studies are done and we all learn about a new kind of damage they can leave. But the damage cannot be removed, or mitigaged or even compensated, because there's no direct connection to Exide left to identify.
And that's why we must make sure we know what's being released into the air for us and our families to breathe before we're exposed to it.