Selective trapping of organochlorine compounds in mountain lakes of temperate areas

Pa), are trapped in the higher locations. Thisgeneral trend is not significantly influenced by possiblelocal sources. Compound distribution is related to averageair temperatures. The phase-change pseudoenthalpiescalculated from the sediment inventories closely match thesummedtheoreticalvolatilizationanddissolutionenthalpies.Thisfractionationeffectisresponsiblefortheaccumulationof high concentrations of the LVC, the more persistent andtoxic according to literature data, in organisms inhabitingsites far from the locations of synthesis or use.