PCDDs, PCDFs, dioxin-like PCBs and indicator PCBs in soil from five selected areas in Slovakia

Source identification and health risk assessment of Persistent Organic Pollutants (POPs) in the topsoils of typical petrochemical industrial area in Beijing, China

“…The contributions of 4 dioxin-like PCBs to the TEQ decreased in the order: 118-CB (56.5%) N 81-CB (49.9%) N 105-CB (12.2%) N 157-CB (6.6%). The TEQ concentrations in the study were significantly lower than those in soils at less industrial area of India (Devi et al, 2014;Kumar et al, 2011) and urban area in Moscow and in Dalian (Agapkina et al, 2011;Wang et al, 2008), but higher than those reported in Slovakia (Dömötörová et al, 2012).…”

“…In recent years, a lot of researchers have reported the concentrations, distributions and risk assessments of POPs in the topsoils of urban and industrial areas (Albanese et al, 2015;Dömötörová et al, 2012;Li et al, 2011;Nadal et al, 2011;Syed and Malik, 2011;Yuan et al, 2014). For an industrial heartland like Yanshan petrochemical area, POP contaminations of the topsoils may mainly resulted not only from emission of local industries but also from air inputs proceeding from the Beijing urban area .…”

Maldives: An archipelago that burns. A first survey of PCDD/Fs and DL-PCBs from human activities

“…These concentrations also exceed soil quality guidelines adopted in several European countries, including Germany (5 pg-TEQ g − 1 ) (BUNR, 1992), Sweden (5 pg-TEQ g − 1 ) (UNEP, 1999), Netherlands (1-10 pg-TEQ g − 1 ) (UNEP, 1999) and UK (8 pg-TEQ g − 1 ) (Environment Agency, 2009), but lower than the guidelines in Japan (1000 pg-TEQ g − 1 ) (MOE Japan, Ministry of the Environment, 2003). PCDD/F soil concentrations detected at the other sites in the archipelago are at levels found in remote areas of Slovakia (0.38-0.71 pg-TEQ g −1 ) (Dömötörová et al, 2012), Australia (0.21-0.98 pg-TEQ g − 1 ) (Müller et al, 2004) and reported by the U.S. EPA (U.S. EPA, 2007) where the mean PCDD/F concentrations ranged from 0.4 to 2.8 pg-TEQ g −1 in pristine areas of North America and Canada, with no potential industrial emission. Fig.…”

Pyrolysis GC–MS for the rapid environmental forensic screening of contaminated brownfield soil

“…The second most abundant congener was 1,2,3,4,6,7,8-heptachlorodibenzodioxin (1234678-HpCDD) congener (10.7%), whereas octachlorodibenzofuran (OCDB) was the third most abundant (7.5%). Following the sink/source classification (Wagrowski and Hites, 2000;Dömtörövá et al, 2012), this profile is classified as a ''sink'' since PCDDs are predominant, rather than a ''source'' profile characterized by a PCDF predominance.…”