Chemical
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World
What to Know About Chemical Hair Relaxers and Health
A growing body of evidence shows a link between these products and a number of health disorders in Black women.
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Business
Chemical Makers Sue Over Rule to Rid Water of ‘Forever Chemicals’
Industry groups said the E.P.A. had exceeded its authority in requiring the drinking-water cleanup. The chemicals, known as PFAS, are…
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Newyork
Are You Wearing Sunscreen the Right Way?
And other essential questions about protecting your skin from the sun, answered by experts.
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Obituaries
Frank Popoff, Who Sought to Lead a Friendlier Dow Chemical, Dies at 88
As chief executive, he pushed a company known for Agent Orange, napalm and chlorine to undo its confrontational reputation and…
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Business
E.P.A. Sets New Rules to Limit Damage From Disasters at Chemical Facilities
The rules require facilities to explicitly address threats such as wildfires or flooding, including those linked to climate change.
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World
California’s Ban on Red Food Dye Puts F.D.A.’s Food Policies on the Spot
The dye was banned in cosmetics after a study suggested it might be a carcinogen. Yet federal regulations still permit…