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Semipermeable membrane devices (SPMDs) spiked with the performance reference compound PCB29 were deployed 6.1m above the sediments of Lake Chelan, Washington, for a period of 27d, to estimate the dissolved concentrations of 4,4′-DDT, 4,4′-DDE, and 4,4′-DDD. Water concentrations were estimated using methods proposed in 2002 and newer equations published in 2006 to determine how the application of the...
The effects of water flow rate and antifouling agents on the extent of biofouling and on the uptake of non-polar organic contaminants by semipermeable membrane devices (SPMDs) were studied during four field experiments in the Western Wadden Sea. Biofouling densities on the sampler surface ranged from 0.3 to 16g dry weight dm −2 . Water sampling rates were estimated from the dissipation rates...
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