Mar del Plata city (Southwest Atlantic) is the most important
beach resort of Argentina. Touristic activity is present almost all
year round, being higher during summer when population increases
more than 300%. The industrial activity (mainly fishing and
textile, following by horticultural and metal working) is also well
developed. In this context, the present study assessed the influence
of creeks and different carbon and nitrogen sources in the distribution
of PCB in sediments and molluscs from a Southwest Atlantic
coastal environment. Although PCB are ubiquitously distributed
due to atmospheric deposition, higher concentration at the marine
ecosystem adjacent to creeks outfall are expected due to terrestrial
sources (drainage) and because PCB specific distribution in organisms
would be modified by the organic matter and nutrients inputs