Researchers using high-tech air monitoring equipment rolled through an industrialized stretch of southeast Louisiana in mobile labs and found levels of a carcinogen in concentrations as much as 10 times higher than previously estimated, according to a paper published Tuesday in the journal Environmental Science & Technology. Researchers using high-tech air monitoring equipment rolled through an industrialized stretch of southeast Louisiana in mobile labs and found levels of a carcinogen in concentrations as much as 10 times higher than previously estimated, according to a paper published Tuesday in the journal Environmental Science & Technology. Environment Phys.org – latest science and technology news stories