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Depositional History of Polychlorinated Biphenyls (PCBs), Organochlorine Pesticides (OCPs) and Polycyclic Aromatic Hydrocarbons (PAHs) in an Amazon Estuary During the Last Century

Depositional History of Polychlorinated Biphenyls (PCBs), Organochlorine Pesticides (OCPs) and Polycyclic Aromatic Hydrocarbons (PAHs) in an Amazon Estuary During the Last Century

Patrícia A Neves, Fernanda I Colabuono, Paulo A L Ferreira, Silvia K Kawakami, Satie Taniguchi, Rubens C L Figueira, Michel M Mahiques, Rosalinda C Montone, Márcia C Bícego

Sci Total Environ. 2018 Feb 15;615:1262-1270.

PMID: 29751431

Abstract:

The sources and depositional history of OCPs (organochlorine pesticides), PCBs (polychlorinated biphenyls) and PAHs (polycyclic aromatic hydrocarbons) over the last 100years were determined in two sediment cores collected in the Amazon region. It was possible to distinguish two depositional periods along the cores. The first period occurred before extensive anthropogenic effects were registered in the sediments. During this time interval, the concentrations of all OCPs and PCBs were below the detection limits (DL), and the PAH concentrations were low and essentially constant (58.19-124.28ngg-1). The second period starts in the mid-1960s and reflects the increased human influence in the area. The concentrations of OCPs, PCBs, and PAHs increased towards the top of the cores, varying between

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AS2121157	PAH, PCBs, and Pesticides on Sediment			Price

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