Evaluation of the global impacts of mitigation on persistent, bioaccumulative and toxic pollutants in marine fish.

ABSTRACT: Although persistent, bioaccumulative and toxic pollutants (PBTs) are well-studied individually, their distribution and variability on a global scale are largely unknown, particularly in marine fish. Using 2,662 measurements collected from peer-reviewed literature spanning 1969-2012, we examined variability of five classes of PBTs, considering effects of geography, habitat, and trophic level on observed concentrations. While we see large-scale spatial patterning in some PBTs (chlordanes, polychlorinated biphenyls), habitat type and trophic level did not contribute to significant patterning, with the exception of mercury. We further examined patterns of change in PBT concentration as a function of sampling year. All PBTs showed significant declines in concentration levels through time, rangi

SUBMITTER: Bonito LT 

PROVIDER: S-EPMC4734435 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature