EDF Health

EPA proposes limits on hypochlorite bleach to reduce degradation to perchlorate

By Tom Neltner, Senior Director, Safer Chemicals Initiative / Published: November 17, 2017

Tom Neltner, J.D., is Chemicals Policy Director and Maricel Maffini, Ph.D., Consultant

Every 15 years, the Environmental Protection Agency’s (EPA) Office of Pesticide Programs (OPP) reviews the safety of registered pesticides. The current cycle ends in 2022. As part of that process, the agency is evaluating the safety of hypochlorite bleaches. In January 2017, EPA decided it would consider the risks posed by degradation of the hypochlorite into perchlorate.

This is important for two reasons: 1) degraded bleach is less effective as a pesticide, and 2) perchlorate is a chemical that interferes with the production of thyroid hormone, a critical hormone for fetal and infant brain development.

On September 22, EPA proposed changes to the pesticide label to minimize the degradation for hypochlorite bleach used to disinfect drinking water, and the agency is accepting comments until November 21, 2017. The label would advise users to:

  • Minimize storage time;
  • Maintain pH of the solution between 11 to 13;
  • Minimize exposure to sunlight;
  • Store at lower temperatures; and
  • If practical, dilute with cool softened water upon delivery.

EDF submitted comments to EPA supporting EPA’s proposal and requesting specific changes to the proposed language, including making the advice to users mandatory. We also asked the agency to extend the label requirements to hypochlorite bleach used to treat produce and to disinfect food handling equipment. Bleach appears to be one of several significant sources of perchlorate contamination of food. Improving management conditions will reduce degradation and preserve effectiveness regardless of the whether the bleach is used in drinking water or to treat vegetables.

EPA’s proposal is an interim decision. We also were pleased to see that OPP is committed to continue working with EPA’s Office of Water (OW) in its assessment of the risks of perchlorate to pregnant women and young children. We asked OPP to incorporate the OW’s findings in additional interim registration decisions for all uses of hypochlorite bleaches.

 

Posted in Health policy, Health science, Perchlorate, Public health, Regulation / Tagged , , , | Comments are closed

Historic court decision on lead-based paint in California court of appeals

By Tom Neltner, Senior Director, Safer Chemicals Initiative / Published: November 15, 2017

Tom Neltner, J.D., is Chemicals Policy Director

[Updated 2-15-18: The California Supreme Court denied the industry appeal]

Yesterday, after three years of deliberations, California’s Appellate Court for the Sixth District held that three defendant companies – Sherwin-Williams Company, NL Industries, and ConAgra Grocery Products[1]— created a public nuisance in ten plaintiff jurisdictions in the state by promoting the use of lead-based paint in the interior of residences built before 1951 even though they had actual knowledge of the harm the paint would pose to children. The case now goes back to the trial court to determine the amount that defendants must pay into a fund to remediate pre-1951 homes with lead-based paint in those jurisdictions and to appoint a suitable receiver to manage the fund.

The Court of Appeals’ decision requires remediation of the lead-based paint, but not its complete removal, in the ten California jurisdictions that were plaintiffs in the case. The jurisdictions are: seven counties, Santa Clara, Alameda, Los Angeles, Monterey, San Mateo, Solano, and Ventura; two cities, Oakland and San Diego; and the city and county of San Francisco.

The case, which began in 2000, rests on public nuisance law in California. While all states prohibit public nuisances to protect the public from threats to their health and safety, the requirements vary significantly among the states and rely heavily on precedent set in prior state court decisions. In California, a public nuisance action requires proof that a defendant knowingly created or assisted in the creation of a substantial and unreasonable interference with a public right. The defendants must have actual knowledge of the public health hazard.

In 2010, the California Supreme Court overruled a previous decision by the trial court and provided key interpretations of public nuisance law that shaped yesterday’s court decision. While the paint companies are expected to appeal this decision to the California Supreme Court, the decision is likely to stand because the Appellate Court hewed closely that court’s 2010 decision.

The Appellate Court for the Sixth District was reviewing a 2014 trial court’s decision that the Sherwin-Williams Company, NL Industries, and ConAgra Grocery Products must pay $1.15 billion to remediate homes built before 1978 with lead-based paint in the plaintiff’s jurisdiction. The three judge panel of the Court of Appeals narrowed the scope of the trial court’s decision from homes built before 1978 to those built before 1951. The panel found that there was insufficient evidence that the three companies had promoted lead-based paint for interior residential use after 1950, even though they may have sold the paint after that date.

Similar cases had been brought in other states including Illinois, New Jersey and Rhode Island. In 2008, the Rhode Island Supreme Court overturned a trial court decision finding paint companies liable for the state’s public nuisance law. The California court found its case was different because it involved an extensive assessment of voluminous evidence presented at trial. The other cases were decided on pleading and did not get to the merits of the evidence.

While lead-based paint is not the only source of lead exposure to children, it is the most significant for those children living in homes with lead-based paint, especially when the paint is deteriorated. Thousands of children still live in homes with lead-based paint hazards – with poor and minority children at greatest risk. This court decision is a first step that will hold companies responsible and result in the removal of toxic lead paint in homes across California and may serve as a roadmap for other states.

[1] ConAgra was a defendant because it had owned Fuller Paint Company’s liabilities through a series of mergers.

Posted in Health policy, Lead, Public health / Tagged , , , , , , | Comments are closed

“Tore apart our happy home”: Another chemical embraced by Dourson and Beck is contaminating the drinking water supply in Memphis and across the country

By / Published: November 14, 2017

Richard Denison, Ph.D., is a Lead Senior Scientist.

[Use this link to see all of our posts on Dourson.]

That lyric from a Chuck Berry signature song, “Memphis, Tennessee,” takes on a haunting new meaning in light of the latest evidence of contamination of the Memphis Sand aquifer, a main drinking water source for the city, with the highly toxic solvent tetrachloroethylene (also known as perchloroethylene (PCE), or more commonly PERC).  Lest there be any doubt about the human toll this is taking, read this local woman’s heart-wrenching story.

The source of PERC in this case is a former dry cleaning business that is now a hazardous waste site, and because of Sharri Schmidt’s case is now nominated to become a Superfund site.  The chemical is still widely used in dry cleaning as well as in many other uses.  It’s a probable human carcinogen, and is also toxic to the brain, kidney and liver.[pullquote]As I write, Dourson and Beck are making decisions that will help determine how the risks of PERC and other chemicals are assessed and whether or not they need to be regulated.[/pullquote]

Unfortunately, Schmidt is far from alone.  PERC contamination of drinking water is widespread in this country.  To name just a few, have a look at these stories from towns and cities in North Carolina, Indiana, Nevada, Arizona, Montana, and New York.

Data compiled by the Environmental Working Group from local water utilities shows that PERC was detected in tap water samples taken by water utilities in 44 states that serve 19 million people.

One might hope and think that affected local communities could turn to the US Environmental Protection Agency for help in such situations.  The sad truth is that under the Trump administration this may well not be the case.  Trump has nominated Michael Dourson to lead EPA’s chemical safety office, who, despite the fact that he’s yet to be confirmed, is already working at EPA as a special advisor to Administrator Scott Pruitt.  And Pruitt has already installed as a political appointee to that office Nancy Beck, who until May was a senior official at the American Chemistry Council (ACC), the chemical industry’s main trade association.

So what do Dourson and Beck have to do with PERC?   Read More »

Posted in Health policy, Health science, Industry influence, TSCA reform / Tagged | Read 1 Response

Little follow-up when FDA finds high levels of perchlorate in food

By Tom Neltner, Senior Director, Safer Chemicals Initiative / Published: November 2, 2017

Tom Neltner, J.D., is Chemicals Policy Director and Maricel Maffini, Ph.D., Consultant

[pullquote]FDA’s apparent lack of follow-up when faced with jaw-dropping levels of a toxic chemical in food is disturbing.[/pullquote]

For more than 40 years, the Food and Drug Administration (FDA) has conducted the Total Diet Study (TDS) to monitor levels of approximately 800 pesticides, metals, and other contaminants, as well as nutrients in food. The TDS’s purposes are to “track trends in the average American diet and inform the development of interventions to reduce or minimize risks, when needed.” By combining levels of chemicals in food with food consumption surveys, the TDS data serve a critical role in estimating consumers’ exposure to chemicals.

From 2004 to 2012 (except for 2007), FDA collects and tests about 280 food types for perchlorate, a chemical known to disrupt thyroid hormone production. This information is very important, because for the many pregnant women and children with low iodine intake, even transient exposure to high levels of perchlorate can impair brain development.

The agency published updates on food contamination and consumers’ exposure to perchlorate in 2008 (covering years 2004-2006) and in 2016 (covering 2008-2012). On its Perchlorate Questions and Answers webpage, FDA says it found “no overall change in perchlorate levels across foods” in samples collected between 2008 and 2012 compared to those collected between 2005 and 2006. It also notes that there were higher average levels in some food and lower in others between the time periods and suggests that a larger sampling size or variances in the region or season when the samples were collected may account for the differences.

FDA’s Q&A webpage masks the most disturbing part of the story

FDA’s attempt at providing consumers with information about the presence of a toxic chemical in food and what it means for their health falls short. By focusing on the similar average level of perchlorate across foods, FDA masks the disturbing fact that children are consuming increasing amounts of perchlorate: 35% for infants, 23% for toddlers and 12% for children between 2 and 6 from 2004-2006 to 2008-2012. The agency’s webpage notes the exposures in 2008-2012 but fails to mention the increase reported by its own scientists.

Read More »

Posted in FDA, Food, Health policy, Health science, Perchlorate, Public health / Tagged , , , , , , , , , , , , , , , , , , | Authors: / Read 1 Response

To be true to your new directive, Mr. Pruitt, you need to fire Michael Dourson today

By / Published: October 31, 2017

Richard Denison, Ph.D., is a Lead Senior Scientist.

[Use this link to see all of our posts on Dourson.]

EPA Administrator Scott Pruitt issued a directive today that prevents independent scientists who receive research grants from EPA from serving on any EPA advisory panels.  Wholly unaddressed by the directive is any counterpart prohibition on scientists funded by industries with conflicts of interest from serving as EPA advisors.  [pullquote]If Pruitt firmly believes that receipt of EPA funding is a basis for disqualifying a scientist from advising the agency, then he need look no further for someone to purge than his own recently named “advisor to the Administrator” on chemicals, Michael Dourson.[/pullquote]

When it comes to advice the agency receives, the core concern over the need to avoid conflicts of interest is this:  Is advice tainted because the entity employing and paying the advisor stands to gain or lose financially from the agency decision that is under advisement?  Say, for example, EPA selected as an advisor a consultant to Koch Industries who it paid for work that concluded the company’s releases into the environment of the petcoke generated by its facilities are safe.  A reasonable person would have a basis to believe that Koch could benefit financially from the advice its consultant might provide the agency.  In contrast, how does EPA stand to benefit financially from the results of research conducted by an EPA-funded scientist?  The simple answer is, it doesn’t.

Now let’s look at it from the perspective of the scientist receiving the funding.  Pruitt’s directive is based on the outlandish premise that EPA funds research in order to find problems it can then regulate, and hence that an EPA-funded researcher has an incentive to find a problem in order to better ensure continued EPA funding.  The claim is that the advice offered by that researcher would be “pre-tainted” toward supporting EPA policy decisions that drive regulation.  This theory that imagines a grand conspiracy between researchers and the agency is inherently flawed and unfounded.   Read More »

Posted in Health policy, Health science, Industry influence, TSCA reform / Tagged , | Comments are closed

Podcast: What a changing climate means for human health

By / Published: October 30, 2017

Climate change poses clear threats to the environment and global ecosystems, but it also presents risks to human health. Evidence suggests that droughts, heat waves, and extreme weather events will become more severe as our planet continues to warm. These effects of climate change can directly harm people by exacerbating medical conditions such as respiratory illnesses and cardiovascular disease. They can also indirectly impact health as they cause food and water shortages that affect the most vulnerable among us. Our changing climate represents a challenge for public health throughout the world.

In this episode of our podcast, we spoke with Dr. Jay Lemery and Dr. Cecilia Sorensen, both physicians at the University of Colorado, about what climate change means for our health and patient care, and what the path to a healthy future looks like.

Want more? Subscribe and listen on iTunes or Google Play, or check out Podbean to listen via desktop!

Posted in Climate change, Medicine, Public health / Tagged | Comments are closed