Were they wearing it at all times? Probably not. BP told many of its cleanup workers that they did not need to wear breathing protection because the toxic

Were they wearing it at all times? Probably not. BP told many of its cleanup workers that they did not need to wear breathing protection because the toxic components of the oil had evaporated or were broken down in the waves, according to the company’s safety briefings. Despite receiving advice from the federal government to conduct biological monitoring by measuring toxins in the cleanup workers’ blood, skin or urine, BP didn’t collect evidence that could have shown whether toxins contained in the oil had entered workers’ bloodstreams, according to plaintiffs’ attorneys.