date:Dec 05, 2012
said, is a more current and clearer understanding of acceptable intake of mercury. The target exposure set by the U.S. Environmental Protection Agency in 1999 is not adequate, he said, and needs to reflect a broader knowledge base and greater epidemiological understanding.
As we learn more about human exposure to chemicals (it) is not uncommon for guidelines to be lowered, said Amanda Sears, associate director of the Environmental Health Strategy Center in Portland. Acceptable lead levels, for