Publications by authors named "Chris G Mahon"
A recent study reported elevated concentrations of perfluorooctane sulfonic acid (PFOS) and other perfluoroalkyl acids (PFAAs) in surface water, snapping turtles, and amphipods in Lake Niapenco, downstream of Hamilton International Airport, Ontario, Canada. Here, our goals were to 1) determine the extent of PFAA contamination in sport fish species collected downstream of the airport, 2) explore if the airport could be a potential source, and 3) compare fish PFOS concentrations to consumption advisory benchmarks. The PFOS levels in several sport fish collected from the three locations closest to the airport (<40km) were among the highest previously published in the peer-reviewed literature and also tended to exceed consumption benchmarks.
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- * A "mercury only" analysis shows that while mercury could take the place of some advisories related to other contaminants, the overall consumption restrictions would remain low to moderately restrictive for both the general population and sensitive groups like children and pregnant women.
- * Lake Ontario would benefit the most from reduced restrictions, allowing for more fish species and sizes to be considered safe for consumption, although some advisories would still apply to certain fish sizes in various locations across the lakes.