Add Yahoo as a preferred source to see more of our stories on Google. Authorities battling a series of large wildfires in the Los Angeles area have employed a bright red fire retardant to tamp the ...

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A new study by researchers at USC has found that a popular variety of fire retardant is laden with toxic metals Drawbacks aside, one fire chief said there’s no substitute for retardant when it comes ...

Aerial fire suppressants are generally a mixture of water, ammonium phosphate — essentially fertilizer — and iron oxide, which is added to make the retardant visible, said Daniel McCurry, a civil and ...

A study by the University of Southern California estimates hundreds of thousands of pounds of toxic metals have been dumped onto forests during aerial fire retardant drops during the past decade, and, ...

Whether to allow fire-retardant treated wood in new construction in high fire risk zones in unincorporated areas is generating controversy. This month, Marin County supervisors signed off on ...

Authorities battling a series of large wildfires in the Los Angeles area have employed a bright red fire retardant to tamp the flames, leading to dramatic images of the material blanketing scores of ...