Distribution and sources of organochlorine pesticides (OCPs) in sediments from upper reach of Huaihe River, East China

Concentrations and potential health hazards of organochlorine pesticides in shallow groundwater of Taihu Lake region, China

“…A higher amount of DDE than DDD in the shallow groundwater of TLR, this probably reflects the aerobic shallow groundwater environment (Vryzas et al, 2009;Sun et al, 2008).…”

“…There is a substantial body of information about OCP residues in agricultural soils (Zhu et al, 2005;Wang et al, 2007;Zhang et al, 2009), sediments and surface waters of China (Zhang et al, 2002;Zhou et al, 2006;Zhang et al, 2007;Liu et al, 2008;Sun et al, 2008;Chen et al, 2011), and there is a large body of literature on OCP residues in groundwater of other countries such as India, USA, and Portugal (Cerejeira et al, 2003;Sankararamakrishnan et al, 2005;Shukla et al, 2006;Gilliom, 2007;Jayashree and Vasudevan, 2007). However, there is little information about OCP residues in the shallow groundwater of China.…”

Perfluoroalkyl substances and organochlorine pesticides in sediments from Huaihe watershed in China

“…Emerging POPs, such as PFASs in sediments are under intensive investigation, however, there were no studies on PFASs in sediments from the Huaihe River till now, and only one study has reported concentrations of PFASs in surface water from the Jiangsu reach of the Huaihe River (Yu et al, 2013). Although OCPs in sediments from the upstream and downstream of the Huaihe River have been reported (Huang et al, 2006;Sun et al, 2010), little information was available for OCPs from the Anhui reach. The objectives of this study were to determine the concentrations, distribution, and transportation of PFASs and OCPs in sediments along the Anhui reach of the Huaihe River, a heavily polluted section, to identify sources and potential risks, and thus to provide information and scientific support for future management and protection of such heavily polluted watershed in China.…”

Ecological Risk Assessment of Organochlorine Pesticides in Surface Waters of Lake Taihu, China

“…Residual water was removed from the extraction by anhydrous sodium sulfate (roasted at 300 • C) and the volume of the extracts was reduced to 0.1 mL by the rotary evaporator. Finally, internal standards (pentachloronitrobenzene) were added to the samples and they were subjected to GC-ECD analysis (Sun et al 2010). OCPs were analyzed using an Agilent 6890 gas chromatograph (GC) with a 63 Ni electron capture detector (ECD).…”