Dioxin-like compounds in sediments from the Daliao River Estuary of Bohai Sea: Distribution and their influencing factors

Concentrations and patterns of polychlorinated naphthalenes in surface sediment samples from Wuxi, Suzhou, and Nantong, in East China

“…PCN concentrations of 21-38 ng/g dw were found in sediment samples from Lake Ontario (Canada/USA) by Helm et al (2008), and PCN concentrations of 0.07-0.8 ng/g dw were found in sediment samples from Lake Simcoe (Canada) by Helm et al (2011). Zhao et al (2011) found PCN concentrations of 0.033-0.284 ng/g dw in sediment samples from the outer (i.e., marine) parts of the Liaohe estuary (China). Pan et al (2007) found PCN concentrations of 0.212-1.209 ng/g dw in surface sediment samples from five locations in the Qingdao estuary (China).…”

Concentration and distribution of PCNs in ambient soil of a municipal solid waste incinerator

“…Studies have suggested that PCNs contribute a greater proportion of the dioxin-like activity than PCBs and PCDD/Fs in some cases (Kannan et al, 1998;Kannan et al, 2001). PCNs have bioaccumulation potential, and a number of congeners have been detected in the atmosphere, soils and sediments (Zhao et al, 2011). Studies have shown that soil acts as a long-term store for atmospherically deposited PCNs (Krauss and Wilcke, 2003;Pan et al, 2013), therefore, wide-spread PCN contamination of soil may be expected (Harrad et al, 1994;Wild and Jones, 1995).…”

Irrigation-induced pollution of organochlorine pesticides and polychlorinated biphenyls in paddy field ecosystem of Liaohe River Plain, China

“…Moreover, polychlorinated biphenyls (PCBs) have been widely used as flame retardants in China [10]. The high level pollution of PCBs has been found in the sediments from Liaohe River and Liaodong Bay of Bohai Sea [11,12]. In addition, a national survey indicated that PCB-TEQ in human milk from rural area of Liaohe River Basin was relatively higher [13].…”