Distribution and ecological risk of polychlorinated biphenyls and organochlorine pesticides in surficial sediments from Haihe River and Haihe Estuary Area, China

Zhao, Long; Hou, Hong; Zhou, Youya; Xue, Ning; Hui-yin, LI; Li, Fasheng

doi:10.1016/j.chemosphere.2009.12.007

Cited by 120 publications

(50 citation statements)

References 37 publications

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“…Average PCB concentrations of 14.1 − 24.9 ng/g in sediments of the Yangtze River Estuary have been observed by Gao et al (2013), which were higher than the levels in the present study. Our result was also significantly lower than the average PCB levels (ranging from 9.20 to 233 ng/g) in the urban sediments recently reported in China (Liu et al 2007;Yang et al 2009;Zhang et al 2010;Zhao et al 2010a) as well as in many riverine, estuarial, and lake sediments at other locations in the world (Vane et al 2007;Shen et al 2009;Hoai et al 2010;Martinez et al 2010;Ilyas et al 2011). The likely explanation is that the three cities in the present study are all emerging cities where commercial PCBs products were not used in large quantities in the past.…”

Section: Concentrations and Spatial Variationscontrasting

confidence: 74%

Occurrence, sources, and ecological risks of PBDEs, PCBs, OCPs, and PAHs in surface sediments of the Yangtze River Delta city cluster, China

Zhang

Yang

Chen

et al. 2014

Environ Monit Assess

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Polybrominated diphenyl ethers (PBDEs), organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), and polycyclic aromatic hydrocarbons (PAHs) in 25 surface sediments in three cities (Nantong, Wuxi, and Suzhou) in the Yangtze River Delta, eastern China were measured. The mean concentrations were 378, 45.8, 1.98, 4,002 ng/g for PBDEs, OCPs, PCBs, and PAHs, respectively. Their levels in the sediments in the three cities were generally consistent with the city industrialization. PBDEs and OCPs were markedly dominated by deca-BDE (>90 %) and DDTs (>70 %). A principle component analysis of the analytes identified three major factors suggesting different sources of the contaminants in the sediments. PBDEs and the organic carbon in the sediments have common sources from industrial activities; whereas OCPs and PCBs, correlated with the second factor, were mainly from historical sources. The third factor with loadings of PAHs is indicative of various combustion sources. Ecological risk assessment indicated that the potential highest risk is from DDTs, for which 22 sites exceed the effects range low (ERL) values and three sites exceed the effects range median (ERM) value.

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Section: Concentrations and Spatial Variationscontrasting

confidence: 74%

Occurrence, sources, and ecological risks of PBDEs, PCBs, OCPs, and PAHs in surface sediments of the Yangtze River Delta city cluster, China

Zhang

Yang

Chen

et al. 2014

Environ Monit Assess

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“…S1). The dominant PCBs had low chlorination levels of congeners in the surface sediments of ECS and Bohai Bay (Gao et al, 2013;Yang et al, 2012;Zhao et al, 2010).…”

Section: Occurrence Of Pcbsmentioning

confidence: 99%

“…The total PCB contents (∑ 24 PCBs, sum contents of all 24 congeners) ranged from 19.08 pg/g dw to 496.01 pg/g dw, with an average value of 125.41 pg/g dw. The PCB levels were comparable with the sediments from the Yangtze River Estuary (YRE) and ECS inner shelf (24.3 pg/g to 343.3 pg/g) (Duan et al, 2013), but were markedly lower than those detected in the surface sediments of Bohai Bay (n.d. to 36,100 pg/g) (Zhao et al, 2010), southern Yellow Sea (518 pg/g to 5848 pg/g) (Zhang et al, 2007), and Pearl River estuary (11.13 ng/g to 23.23 ng/g) (Nie et al, 2005) in China. Their values were in the low end of the global content range of PCBs (0.2 ng/g to 400 ng/g) in nearshore surface sediments (Fowler, 1990).…”

Section: Occurrence Of Pcbsmentioning

confidence: 99%

Use of lipid biomarkers for identification of regional sources and dechlorination characteristics of polychlorinated biphenyls in the East China Sea

Fan

Lan

et al. 2014

Science of The Total Environment

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“…The contamination characteristics of PAHs in water and sediment can reflect processes such as industrial and economic development, the levels of control and regulation of organic pollutants, and signs of human activity [13]. For example, high pollution levels have been reported in water and sediment due to an abundance of pollution sources, a large population, a large energy consumption structure, and the presence of an industrial district [37][38][39][40]. In addition, the water flow, current velocity, total organic carbon level, and topographical conditions may also influence the adsorption, horizontal distribution, transport, and migration of pollutants, thereby affecting the levels of pollutants in the water and sediment [41][42][43].…”

Section: Spatial Variations Of Pahsmentioning

confidence: 99%

Sediment-Water Exchange, Spatial Variations, and Ecological Risk Assessment of Polycyclic Aromatic Hydrocarbons (PAHs) in the Songhua River, China

Cui

et al. 2016

Water

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Abstract:The sediment-water exchange, spatial variations, and ecological risk of polycyclic aromatic hydrocarbons (PAHs) in the water and sediment of the Songhua River, China, were investigated and assessed in this paper. The fugacity fraction (ff ) was used to evaluate the sediment-water exchange of PAHs between the water and sediment. The results suggest that the values of ff decreased with an increasing number of PAH rings. The sediment acts as a secondary emission source for threeand four-ring PAHs, whereas five-ring PAHs were deposited in the sediment from the water. The high ff values of PAHs found in autumn suggest large releases of PAHs after abundant deposition in summer, and the lowest ff values of PAHs occurred in summer. The values were especially low for five-and six-ring PAHs, which exhibited considerable deposition from the water to the sediment. PAHs with low molecular weights showed strong variations, which were potentially caused by their active physical-chemical properties. Additionally, high molecular weight BaP displayed weak variations, increasing the potential risk in the sediment. The simplified qualitative method of C water /C sediment is useful for assessing variations in the sediment-water exchange. The relationships between C water /C sediment and ff were investigated by determining the Pearson correlation coefficients (R). The results exhibited a significant negative correlation, with R =´1.000 and P = 0.000 for Flu, R =´0.993 and P = 0.007 for Phe, R =´0.998 and P = 0.002 for FlA, and R =´0.971 and P = 0.029 for BaP. The coefficients of variation indicated that five-ring PAHs were more sensitive than threeand four-ring PAHs. Thus, these low-ring PAHs can be easily exchanged between the sediment and the water. Additionally, the ecological risk of PAHs to aquatic organisms in the Songhua River is relatively low.

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Distribution and ecological risk of polychlorinated biphenyls and organochlorine pesticides in surficial sediments from Haihe River and Haihe Estuary Area, China

Cited by 120 publications

References 37 publications

Occurrence, sources, and ecological risks of PBDEs, PCBs, OCPs, and PAHs in surface sediments of the Yangtze River Delta city cluster, China

Occurrence, sources, and ecological risks of PBDEs, PCBs, OCPs, and PAHs in surface sediments of the Yangtze River Delta city cluster, China

Use of lipid biomarkers for identification of regional sources and dechlorination characteristics of polychlorinated biphenyls in the East China Sea

Sediment-Water Exchange, Spatial Variations, and Ecological Risk Assessment of Polycyclic Aromatic Hydrocarbons (PAHs) in the Songhua River, China

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