PAHs, OCPs and PCBs in sediments from three catchments in Durban, South Africa
作者： T Vogt , R Pieters , BK Newman
DOI: 10.2989/16085914.2018.1445616
关键词: Toxaphene 、 Environmental science 、 Environmental chemistry 、 Sediment 、 Surface runoff 、 Organochlorine pesticide 、 Estuary 、 Congener 、 Dry weight
摘要: Polycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) were analysed from sediment samples collected in 2012 rivers, surface runoff canals estuaries three highly urbanised catchments durban, KwaZulu-Natal, South Africa. PAHs ubiquitous, at concentrations between 36–6 800 ng g−1 dry mass (dm). Congener ratio diagnosis suggests the derived predominantly pyrogenic sources. Four OCPs and/or their metabolites detected varying frequencies concentrations. Of these, dichlorodiphenyltrichloroethane (ddT) most frequently a high concentration some systems. Toxaphene was sites. The total PCB varied widely, below method detection limit to 110 Based on comparison of chemical international quality guidelines, PAH, OCP sediment...
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