Issue Date: October 10, 2016
Lead pollution approaches natural background levels
Humans have a 3,500-year history of emitting neurotoxic lead into the atmosphere from mining, using leaded gasoline, and other activities. But efforts in the past several decades to reduce lead emissions have worked well, confirms a study of peat bogs in northern Alberta (Geophys. Res. Lett. 2016, DOI: 10.1002/2016gl070952). A team led by William Shotyk of the University . . .
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