Description
This report compares for the first time the history, sampling strategy and results of the Canadian National Air Pollution Surveillance (NAPS) and the US National Dioxin Air Monitoring Net-work (NDAMN) for polychlorinated dioxin and furan (PCDD/Fs) concentrations for the periods 1989–2009, and 1999–2002, respectively, for co-planar polychlorinated biphenyl ethers (Co-PCBs) for the periods 2005–2009 and 1999–2002, respectively, and data from the Mexican diox-in air monitoring network (MDAMN) from 2008 through 2012.
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