EPA releases information on hundreds of chemicals

EPA released two databases to inform
scientists and the public about the toxicity
of certain chemicals.Searchable databases on chemical toxicity and exposure data now available

The U.S. Environmental Protection Agency (EPA) is making it easier to find data about chemicals.

EPA is releasing two databases — the Toxicity Forecaster database (ToxCastDB) and a database of chemical exposure studies (ExpoCastDB) — that scientists and the public can use to access chemical toxicity and exposure data.

Improved access supports EPA Administrator Lisa P. Jackson’s priorities of protecting Americans’ health by assuring the safety of chemicals and expanding the conversation on environmentalism.

“Chemical safety is a major priority of EPA and its research,” said Dr. Paul Anastas, assistant administrator of EPA’s Office of Research and Development.

“These databases provide the public access to chemical information, data and results that we can use to make better-informed and timelier decisions about chemicals to better protect people’s health.”

ToxCastDB users can search and download data from over 500 rapid chemical tests conducted on more than 300 environmental chemicals.

ToxCast uses advanced scientific tools to predict the potential toxicity of chemicals and to provide a cost-effective approach to prioritizing which chemicals of the thousands in use require further testing. ToxCast is currently screening 700 additional chemicals, and the data will be available in 2012.

ExpoCastDB consolidates human exposure data from studies that have collected chemical measurements from homes and child care centers. Data include the amounts of chemicals found in food, drinking water, air, dust, indoor surfaces and urine.

ExpoCastDB users can obtain summary statistics of exposure data and download datasets. EPA will continue to add internal and external chemical exposure data and advanced user interface features to ExpoCastDB.

The new databases link together two important pieces of chemical research — exposure and toxicity data — both of which are required when considering potential risks posed by chemicals.

The databases are connected through EPA’s Aggregated Computational Toxicology Resource (ACToR), an online data warehouse that collects data on over 500,000 chemicals from over 500 public sources.

Users can now access 30 years worth of animal chemical toxicity studies that were previously only found in paper documents, data from rapid chemical testing, and various chemical exposure measurements through one online resource.

The ability to link and compare these different types of data better informs EPA’s decisions about chemical safety.

More information about the databases:
ToxCastDB: http://actor.epa.gov/actor/faces/ToxCastDB/Home.jsp
ExpoCastDB: http://actor.epa.gov/actor/faces/ExpoCastDB/Home.jsp
ACToR: http://actor.epa.gov

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Smoking ban improves air quality for bar and restaurant employees

Restaurants and bars often have to
deal with bad odors and stale tobacco.When it comes to indoor air quality and bars and restaurants, a decrease in secondhand smoke exposure has a positive effect on the people working there.

A study of 40 Michigan bar employees revealed their exposure to secondhand smoke was nearly nonexistent 10 weeks after the smoke-free air law took effect in May 2010, according to a report in the Holland Sentinel.

The Michigan Department of Community Health study measured participants’ levels of cotinine, a nicotine metabolite, found in urine after tobacco exposure.

Four to six weeks before the smoke-free law took effect, the same bar employees’ cotinine levels were similar to levels seen in smokers.

As the study shows, their cotinine level was nearly undetectable six to 10 weeks after the law was implemented.

Though cotinine levels are the best indicators of secondhand smoke exposure, the study also measured participants’ levels of creatinine and NNAL, two chemicals also found in urine of those who have been exposed to secondhand smoke.

In the statewide study, creatinine levels remained about the same in the participants before and after the law took effect. NNAL mean levels went from .086 picomoles per milliliter to .034 picomoles per milliliter before and after the law took effect.

Workers also reported better overall general health and fewer respiratory symptoms after the law.

Source: Holland Sentinel

Indoor air quality in bars and restaurants

Even after a smoking ban comes into effect, bars and restaurants often have to deal with stale, lingering odors that are a normal byproduct from years of smoking.

Electrocorp offers a range of air filtration systems for bars and restaurants that can remove airborne, chemicals, odors and particles and improve the overall indoor air quality in the space.

Contact us to find out more.

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