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At EWG,
our team of scientists, engineers, policy experts, lawyers and computer programmers pores over government data, legal documents, scientific studies and our own laboratory tests to expose threats to your health and the environment, and to find solutions. Our research brings to light unsettling facts that you have a right to know.

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Arsenic in Treated Wood

Research Content

EWG's Comments on CCA Ban Petition HP01-3

Testimony before the Consumer Product Safety Commission
EWG testimony before the Consumer Product Safety Commission in March 2003 on our petition to ban the arsenic containing chemical, CCA, from use in publich playgrounds & parks.

All Hands On Deck

Nationwide Consumer Testing of Backyard Decks and Playsets Shows High Levels of Arsenic on Old Wood
An EWG study finds that consumers with old wood structures remain at risk from arsenic that easily wipes off the wood surface. Use these 10 safety steps to reduce your family's exposure.

The Poisonwood Rivals

High Levels Of Arsenic Found In Lumber From Home Depot & Lowe's

Poisoned Playgrounds

Arsenic in Pressure-treated Wood
The EPA will not be able to protect the nation's children from arsenic unless it regulates arsenic in pressure-treated wood.

Prime Suspects

The Law Breaking Polluters America Fails to Inspect
According to a recent study from the Environmental Working Group (EWG), state officials are falling down on the job of enforcing basic environmental laws. In the 1980s many governors asked for environmental enforcement responsibility to be shifted from the federal government to the states, but a months-long computer investigation by EWG shows that rather than cleaning up the nation's air and water the states are passing on the most basic of enforcement activities - inspecting the worst known polluters.