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Richard Denison, Ph.D., is a Lead Senior Scientist.
Yesterday EDF submitted comments on a supplement to EPA’s 1,4-dioxane risk evaluation under the Toxic Substances Control Act (TSCA), which the agency issued a scant three weeks ago.
This solvent is a likely human carcinogen that contaminates drinking water nationwide and is present in millions of consumer products.[pullquote]What EPA left out of its analysis swallows what it included.[/pullquote]
The supplement expands the scope of EPA’s ongoing risk evaluation of 1,4-dioxane. It now includes certain water exposures and certain exposures of consumers to products in which the chemical is present as a contaminant (more technically, a “byproduct”).
EPA rushed the public comment period, providing only 20 days and refusing requests from at least 14 organizations for an extension. The agency also cut out another vital step in the process – peer review –in violation of its own rules for how risk evaluations are to be conducted.
But that wasn’t the only thing EPA rushed. The Supplement itself was an 11th-hour affair, done mainly to appease a hypocritical demand from the formulated chemical products industry.
The haste with which it was assembled badly shows. The additional exposures EPA examined are so narrowly constructed as to omit major, and potentially the largest, sources of exposure and risk people face from the presence of 1,4-dioxane in water and products.
And what EPA left out of its analysis swallows what it included. (more…)
Richard Denison, Ph.D., is a Lead Senior Scientist.
In recent weeks EPA has issued for public comment significant modifications to its draft risk evaluations under the Toxic Substances Control Act for two chemicals: Pigment Violet 29 (PV29) and 1,4-dioxane. Because EPA initially provided relatively brief comment periods on the modifications, both were subject to requests for extensions of the comment period.
The table below tells the story of how these two requests fared under the Trump EPA. (more…)
Sam Lovell, Project Manager.
Any successful initiative to replace lead service lines (LSLs) – the lead pipes connecting the water main under the street to homes – must be built on clear and consistent communications to residents. This will not only accelerate LSL replacement progress and equip people with information that impacts their health – it will also help build trust.
Many residents likely don’t even know what an LSL is, let alone that they need to take proactive steps if they want it fully replaced. In most communities, ownership of the water service line is split between the drinking water utility and the resident. Fully replacing an LSL entails removing the portions of lead pipe both on public and on private property. A partial replacement (when only one of the sides of an LSL is removed – see image below) is an issue because it can spike lead levels in the short-term and does not have the long-term benefit of reduced lead exposure seen with a full LSL replacement.
When describing LSLs and the replacement process, water systems must explain whether they are referring to the full LSL or only one of the sides, and the implications of this for the resident.
Sarah Vogel, Ph.D., is Vice President for Health.
This post originally appeared on the Global Clean Air blog.
When we’re outside, either walking or driving, we’re instinctively looking out for traffic. “Look both ways when you cross the street,” is advice drummed into most children.
But even so, we all have blind spots, and we’re not aware of the present danger polluting cars and trucks bring into our daily lives.
Our new video shows that although air pollution from vehicle exhaust is invisible, its damage to our health is visible and deadly.
EDF’s Global Clean Air Initiative has spent years researching air pollution in cities around the world. Our pioneering work with Google Earth Outreach, academic, community and government partners in Oakland, Houston and London shows that levels of air pollution vary much more widely than was previously known. In Oakland, we now know that levels of air pollution can vary by up to eight times within one city block. We’ve been working to visualize local pollution and its impacts in order to support targeted policies for cleaner air especially in those communities hardest hit by pollution. But we also recognized the need to make the experience of pollution more visible and more personal to each one of us as we walk down a city street.
Jennifer McPartland, Ph.D., is a Senior Scientist. Richard Denison, Ph.D., is a Lead Senior Scientist.
Today the Trump Environmental Protection Agency (EPA) issued its final risk evaluation for trichloroethylene (TCE). It largely tracks the agency’s draft document, retaining numerous flaws that severely understate the highly toxic chemical’s risks to workers, the general public and those most susceptible to its health impacts.
Among the evaluation’s most serious deficiencies is the abandonment of a bedrock principle of chemical risk assessment: that risk estimates be based on the most sensitive health effect. Sadly, the final document retains the unprotective approach the Trump White House forced EPA to adopt, as reported in detail by Elizabeth Shogren of Reveal News.
Exposure to TCE is ubiquitous, coming from ambient and indoor air, vapor intrusion from contaminated sites, groundwater and drinking water wells, and food – yet EPA’s evaluation ignores or downplays each of these exposure sources and pathways.
Below we summarize some of the major concerns in EPA’s evaluation that we addressed in detail in our comments.
One silver lining: Despite its glaring deficiencies, the risk evaluation did find that the great majority of TCE’s conditions of use present unreasonable risks—even as it grossly understated the extent of those risks. As a result, EPA must now proceed to regulate those activities, providing the new Administration an opportunity to rectify the serious problems created by the Trump EPA. (more…)
Richard Denison, Ph.D., is a Lead Senior Scientist.
In June 2016, Congress passed historic, bipartisan legislation overhauling the Toxic Substances Control Act, the country’s main chemical safety law, to better protect the public from harmful exposure to toxic chemicals. The Trump administration has spent the last four years working to undermine TCSA by driving its implementation dangerously off the rails.
Now, with President-elect Biden set to take the helm in January, there’s a tremendous opportunity not only to repair the damage done by the Trump administration, but also to use the law proactively to ensure that everyone in the country is better protected from hazardous chemicals — with attention to those whose health is most at risk and to communities where exposures are greatest.
Here are five ways to restore sound and legal implementation of the law and strengthen health protections for families across the country.
