EDF Health

EPA moves one step closer to managing risks from TCE

By Lindsay McCormick / Published: April 11, 2016

Lindsay McCormick is a Research Analyst.

It’s no secret that trichloroethylene (TCE) is a nasty chemical.  A 2013 review of thousands of scientific studies by Environmental Protection Agency (EPA) scientists concluded that TCE is carcinogenic to humans by all routes of exposure and poses additional hazards, including immunotoxicity, neurotoxicity, and adverse effects on the developing heart.  TCE’s link to cancer has been confirmed by the International Agency for Research on Cancer (IARC), EPA’s Integrated Risk Information System (IRIS),  the Agency for Toxic Substances and Disease Registry (ATSDR), and the National Toxicology Program (NTP).

With such a track record, one would expect that the U.S. government has restricted its use, right?  Wrong.  The current annual U.S. production of TCE is 250 million pounds – so, not surprisingly, human and environmental exposure is widespread.  While most TCE is used in industrial and commercial settings as a chemical intermediate in the production of other chemicals, it’s also commonly used as a metal degreasing agent and spot cleaner in commercial dry cleaning, and can be found in certain consumer products. Read More »

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Making “safer” accessible to all

By Lindsay McCormick / Published: April 4, 2016

Lindsay McCormick is a Research Analyst.

I find purchasing shampoo and other common personal care products to be a surprisingly stressful experience – I pace the aisles at the drugstore for a good 10-15 minutes, read every product ingredient list, contemplate the legitimacy of claims like “paraben-free” or “no artificial colors or fragrances,” and weigh the impact on my wallet. In the end, I usually choose a moderately priced product with some sort of ingredient safety claim brightly printed on the front label, and hope the extra $2 I spent will actually reduce my exposure to hazardous chemicals.

Many consumers are hungry for information and solutions that help reduce their exposure to toxic chemicals.  As more research links exposures to common ingredients in personal care products and health impacts – like certain parabens to reduced fertility; certain phthalates to asthma, reproductive disorders, and neurological effects; and triclosan to obesity – many consumers want to feel empowered to take action. That’s why the results of a recent intervention study are so intriguing: researchers found that exposures to certain chemicals fell in a population of low-income Latina girls after using personal care products labeled as being free of such chemicals for three days.

The implications of this study raise several interesting questions that I’ll explore in this post. Specifically, are personal shopping choices an effective way to avoid chemical exposures?  And, is this strategy equally available to everyone in our society?   Read More »

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Very little, very late: EPA still lacks data on safety of widely used flame retardant chemicals

By Lindsay McCormick / Published: February 1, 2016

Lindsay McCormick is a Research Analyst.  Richard Denison, Ph.D., is a Lead Senior Scientist.

[This is Part One of a two-part series.  Here is a link to Part Two.]

Last summer, EPA released a Problem Formulation and Data Needs Assessment describing the inadequacy of data available to conduct risk assessments on a group of brominated phthalate flame retardants – two of which are major components in widely used Firemaster products. 

This is the first of two blog posts on the comments EDF recently submitted to EPA on this document.  In this post, we discuss the growing public health and environmental concerns over use of Firemaster products and the recommendations we made to EPA on steps it needs to promptly take to address these concerns.  In our second post, we’ll lay out our serious concerns about the lack of transparency, limited data access, and allowance of unwarranted confidentiality claims that our review of EPA’s document brought to light.

 

First, a brief history

In the mid-2000s, Great Lakes Chemicals Corporation (now Chemtura) agreed to phase out production of polybrominated diphenyl ether (PBDE) flame retardants due to mounting evidence of their health effects and their persistence and accumulation in people and the environment.  Soon after, the use of the company’s replacement Firemaster products skyrocketed.

The two main components of Firemaster products, 2-Ethylhexyl 2,3,4,5- tetrabromobenzoate (TBB) and bis(2-Ethylhexyl) -3,4,5,6- tetrabromophthalate (TBPH), are  high production volume (“HPV”) chemicals – each produced at more than one million pounds annually.

Unfortunately, use of these chemicals rose to such levels – replacing PBDEs in consumer products like polyurethane foam-based furniture and electronics – without sufficient data and review to establish their safety.   Read More »

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Advancing the ball while minding the gaps: EDF’s comments on EPA’s risk scoping documents for flame retardant chemicals

By Lindsay McCormick / Published: December 1, 2015

Lindsay McCormick is a Research Analyst.

Until June 2014, EPA had not completed a chemical risk assessment under its Toxic Substances Control Act (TSCA) authority in 28 years.  Since then, EPA seems to have been somewhat picking up the pace: Over the past year and a half EPA has completed four additional risk assessments through the TSCA Work Plan Chemical Program, which is designed to assess the risks of priority chemicals currently on the market.

Recently, EPA initiated its assessment process for the next set of Work Plan chemicals, including three “clusters” of flame retardant chemicals.  We fully support EPA’s current efforts to assess the risks of these flame retardants – with the end goal of managing identified risks – and have provided quite extensive comments on EPA’s initial scoping documents.  In this post, I’ll highlight some of our comments and recommendations; see the links at the end to access the comments themselves.   Read More »

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New Wristband Technology Illuminates Chemical Asthmagens in our Environment

By Lindsay McCormick / Published: November 19, 2015

Lindsay McCormick is a Research Analyst.

Asthma presents a huge public health challenge.  Over the past few decades, asthma rates in the U.S. have nearly tripled – increasing from 3.1% in 1980 to 8.4% in 2010. Today, more than 25 million people suffer from this chronic respiratory illness.

While air pollution and allergens like pet dander are clearly big triggers for asthma, we know that certain chemical exposures play an important role as well.  A number of chemicals used in everyday consumer products – from household cleaners and building materials to shampoos and cosmetics – are known or suspected “asthmagens”– environmental agents that cause or exacerbate asthma.  Unfortunately, such chemicals are poorly regulated and we, as individuals, rarely have any way of knowing which ones are lurking in our environment.

EDF recently conducted a pilot project to explore which chemicals we are exposed to in our day-to-day lives.  The project employed simple chemical-detecting wristbands that absorb certain chemicals present in the environment.  We enlisted 28 volunteers to become “environmental sensors” for a week by wearing the wristbands.

Among the results:  Over the course of that week, the participants came into contact with a total of 57 potentially hazardous chemicals, 16 of which are linked to respiratory health effects such as asthma.   Read More »

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Evidence grows linking DEHP exposure to reproductive toxicity: What is the state of regulation?

By Lindsay McCormick / Published: May 5, 2015

Lindsay McCormick is a Research Analyst.

Phthalates are chemical plasticizers found in a wide array of industrial and consumer products, including polyvinyl chloride (PVC) piping and tubing, cosmetics, medical devices, plastic toys, and food contact materials.  Because phthalates are often not strongly chemically bound to these products, they can leach out of those products and into the environment around us. Given this, it may not be surprising that phthalates and their metabolites can be measured in the bodies of nearly all people tested.

This post reports on important new research on DEHP and summarizes the state of regulation of the chemical in the U.S. and abroad.   Read More »

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