Patterns and sources of PCDD/Fs and dioxin-like PCBs in surface sediments from the East River, China

Ren, Mingchun; Peng, Ping’an; Chen, Deyi; Chen, Pei; Li, Xiaoming

doi:10.1016/j.jhazmat.2009.04.072

Cited by 40 publications

(14 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3b). It is in line with result observed the coke plants in China ) and in vicinity of the MSWI from areas of Tarragona, Constantí and Montcada in Spain (Domingo et al 2001) and atmospheric ambient in Kaohsiung (Lee et al 2004) and was similar to findings in several other reports (Leung et al 2007;Ma et al 2009;Ren et al 2009;Xu et al 2009;Zhang et al 2009;Xiao et al 2010). 1,2,3,4,6,7,8-HpCDF contributed more than 21 % of the sum of 2,3,7,8-substituted PCDD/Fs in industrial sites and reference sites, respectively.…”

Section: Concentrations Of Pcdd/fs In Soil/sedimentsupporting

confidence: 92%

“…It is indicated that open burning, house burning and chemical production are paying an essential role in PCDD/Fs. In particularly, the average proportion of OCDD concentration in this survey is 2 folders lower than results observed in the Pearl River Delta and Eastern China (Bao et al 1995;Ren et al 2009;Xu et al 2009;Zhang et al 2009). Whether PCP or Na-PCP is a source of PCDD/Fs in Baiyin city should be identified furthermore.…”

Section: Concentrations Of Pcdd/fs In Soil/sedimentcontrasting

confidence: 59%

“…for aquatic organisms, and the American guidelines specified a value that was a ''high risk to sensitive species'' of 25 pg/g TEQ dw. for mammalian wildlife (Ren et al 2009;Zhang et al 2009). Judging these less stringent guidelines, there were no values above these guidelines, and it suggested no adverse biological effects to the environment.…”

Section: Ecologic Risk Assessmentmentioning

confidence: 99%

“…Although a few investigations in China on environmental behaviors of PCDD/Fs mainly focused on the regions like South, East, North and Central China (Wen et al 2009;Zhang et al 2008a;Ren et al 2009;Zhang et al 2009;Li et al 2010;Zhang et al 2010;Chen et al 2012), these were less investigations on PCDD/Fs levels and potential risk assessment associated with soil/sediment in high latitude areas in Northwest China.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Pollution characteristics and potential health risk of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in soil/sediment from Baiyin City, North West, China

Peng

et al. 2013

Environ Geochem Health

View full text Add to dashboard Cite

In order to better understand the environmental behaviors of persistent organic pollutants, the characteristics of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) were investigated in twenty-three soil/sediment samples from Baiying City, Northwest China, in 2008. The possible sources and potential health risk of PCDD/Fs were also discussed. The concentrations of PCDD/Fs in nineteen soil samples varied between 20.13 and 496.26 pg/g dry weight (dw.), with an average value of 125.59 pg/g dw. The highest International Toxic Equivalent (I-TEQ) of PCDD/Fs (8.34 pg/g dw.) in soil was found at sample S1 collected from proximity to a copper metallurgy plant. The concentrations of PCDD/Fs in four sediment samples ranged from 37.69 to 491.49 pg/g dw., with an average value of 169.95 pg/g dw. The highest I-TEQ of PCDD/Fs (8.56 pg/g dw.) in sediment was found at sample S12 collected from the East big ditch with waste water discharged into the Yellow River. The results indicated that PCDD/Fs contamination of soil/sediment is originated from three sources: chlorine-containing chemicals, non-ferrous metal industrial PCDD/Fs emission and coal burning. The health risk exposure to PCDD/Fs through soil, dust ingestion and dermal absorption ranged from 0.0006 to 0.0134 pg/kg/day Word Health Organization's toxic equivalent in 1998 (WHO 1998 -TEQ) with mean values 0.0032 pg WHO 1998 -TEQ for adults and varied between 0.0012 and 0.0256 pg/kg/day WHO 1998 -TEQ with mean values 0.006 pg/kg/day WHO 1998 -TEQ for children, respectively. These results indicated that health risk of PCDD/Fs for children should be paid more attention.

show abstract

Section: Concentrations Of Pcdd/fs In Soil/sedimentsupporting

confidence: 92%

Section: Concentrations Of Pcdd/fs In Soil/sedimentcontrasting

confidence: 59%

Section: Ecologic Risk Assessmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Pollution characteristics and potential health risk of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in soil/sediment from Baiyin City, North West, China

Peng

et al. 2013

Environ Geochem Health

View full text Add to dashboard Cite

show abstract

“…Their physical and chemical properties mean that PCDD/Fs bioaccumulate in aquatic biota, and this is of increasing concern. Lake, river, and marine sediments have often been studied because they can show historical PCDD/F accumulation trends (Yeager et al, 2007;Ren et al, 2009;Josefsson et al, 2012). In contrast, there have been few studies of PCDD/Fs in environmental water because of the large volume of water that is needed for PCDD/F analysis.…”

Section: Introductionmentioning

confidence: 99%

Polychlorinated dibenzo-p-dioxins and dibenzofurans in water and six fish species from Dongting Lake, China

Gao

Zhang

et al. 2014

Chemosphere

View full text Add to dashboard Cite

h i g h l i g h t sThe PCDD/Fs concentrations in eight water samples from Dongting Lake were determined. PCDD/Fs concentrations were above that allowed by the US EPA. 2,3,7,8-Chlorinated PCDD/F concentration differed in six fish species. The bioaccumulation of PCDD/F congeners cannot solely be explained by their physical-chemical properties. a r t i c l e i n f o a b s t r a c tThere have been few studies of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in environmental water because of the large volume of water required for PCDD/Fs analysis. Water quality directly affects aquatic organisms, and little is known about how PCDD/Fs are transported in aquatic environments. PCDD/Fs were analyzed in eight water samples from Dongting Lake, China, which was contaminated with PCDD/Fs because of sodium pentachlorophenate use between the 1960s and the 1980s. The total PCDD/F concentrations in the samples were 36-345 pg L À1 , and the mean was 191 pg L À1 . Octachlorodibenzo-p-dioxin was the most abundant PCDD/F congener in every sample, contributing 67-95% of the total 2,3,7,8-chlorinated PCDD/F concentrations. The toxic equivalent (WHO-TEQ) concentrations in the samples were 0.17-0.37 pg L À1 , and the mean was 0.28 pg L À1 , which is higher than the Canadian environmental quality guideline (0.038 pg L À1 WHO-TEQ for freshwater) and the United States Environmental Protection Agency water quality criterion (0.014 pg L À1 WHO-TEQ). PCDD/Fs were also determined in six fish species collected from Dongting Lake, to assess the concentrations, accumulation patterns, and potential for toxic effects. The total 2,3,7,8-chlorinated PCDD/F concentrations in the fish samples were 2.2-17.9 pg g À1 (wet weight), and the dominant congeners were octachlorodibenzo-p-dioxin, 1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin, 1,2,3,4,7,8-hexachlorodibenzop-dioxin, and 2,3,4,7,8-pentachlorodibenzofuran. The PCDD/F WHO-TEQs were 0.10-0.92 ww (3.3-65.3 lw) pg g À1 in different species of fish. PCDD/F congener patterns in fish may be affected by food chain biomagnification and the lipid content of the species.

show abstract

Polychlorinated dibenzo-p-dioxins and dibenzofurans in the sediment core from a schistosomiasis area with Na-PCP application in China

Xiao

Zheng

Zhang

et al. 2012

Bull Environ Contam Toxicol

View full text Add to dashboard Cite

Spatial and temporal distribution of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) was explored in the Dongting Lake area. The concentrations of total PCDD/Fs ranged from 15.4 to 38.9 pg I-TEQ g(-1) in surface sediments and 0.55 to 38.9 pg I-TEQ g(-1) for sediment core. The vertical distributions of PCDD/Fs in the sediment core reflected the past history of using Na-PCP and the impact of the massive flood events on the distribution of PCDD/Fs to some extent. The sediment still acts as significant PCDD/F sources and they would pose a risk to sensitive species, resulting in the risk for human exposure to PCDD/F.

show abstract

Patterns and sources of PCDD/Fs and dioxin-like PCBs in surface sediments from the East River, China

Cited by 40 publications

References 27 publications

Pollution characteristics and potential health risk of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in soil/sediment from Baiyin City, North West, China

Pollution characteristics and potential health risk of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in soil/sediment from Baiyin City, North West, China

Polychlorinated dibenzo-p-dioxins and dibenzofurans in water and six fish species from Dongting Lake, China

Polychlorinated dibenzo-p-dioxins and dibenzofurans in the sediment core from a schistosomiasis area with Na-PCP application in China

Contact Info

Product

Resources

About