Filters: Tags: {"type":"Harvest Set"} (X) > Types: Citation (X) > partyWithName: Christopher R Sherwood (X)

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Reductive dechlorination rate data for 4,4'-DDE in sediments of the Palos Verdes Shelf, CA (1981-2010) Wastes from the world’s largest manufacturer of DDT were released into the Los Angeles County municipal sewer system from 1947 to 1971. Following primary treatment, the effluent was discharged from a submarine outfall system whereupon a portion of the DDT and associated degradation products were deposited in sediments of the Palos Verdes Shelf (PVS). Parent DDT is present only in trace amounts in the sediments today, the vast majority having been transformed to DDE shortly following deposition. Previously believed to be inert, DDE is slowly being converted to DDMU and DDMU to DDNU via microbially-mediated reductive dechlorination (RDC). Kinetic and compositional data suggest that this process began sometime in the... Categories: Data; Types: Citation; Tags: Palos Verdes Peninsula, Los Angeles, California, USGS Science Data Catalog (SDC), geochemical processes, sediment geochemistry