Perfluorooctane sulfonate in the environment: chapter 4

Monitoring Results

Results for air, sediment, water, fish and wildlife are presented, with both a geographic analysis of recent (2006-2011) PFOSconcentrations across Canada (Figure 2) and an analysis of PFOS levels in Canada over time (1979-2010, Figures 3-8). Monitoring results for landfill and wastewater from 2008 to 2010 are also described. When more than one data point for a given medium and location was available, the average (geometric mean) is reported, except for comparisons to the draft FEQGs, where the maximum value is used.

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