Richard Denison, Ph.D., is a Senior Scientist.
In what seemed a startling move, the American Chemistry Council (ACC) last week gave testimony at a Congressional hearing that included a full-throated endorsement of mandating that EPA be required to assess cumulative impacts when developing regulations addressing chemicals under the Toxic Substances Control Act (TSCA).
The call for cumulative impact assessment was a contentious element in last year’s debate over the safety standard that would apply to chemicals under a reformed TSCA. Reform advocates supported assessing such impacts where the science allows, while ACC had staunchly opposed the concept. The need to account for cumulative impacts is also a key recommendation of the National Academy of Sciences, in its recent reports Science and Decisions: Advancing Risk Assessment (2009) and Phthalates and Cumulative Risk Assessment: The Tasks Ahead (2008).
Ah, but the devil is indeed in the details: ACC’s apparent change of heart is no such thing. Rather, ACC is endorsing a step that would make it even harder for EPA to act to control dangerous chemicals under TSCA, namely that the agency would have to consider the cumulative impact of all prior regulations affecting a given industry before it could propose a new one. Read More