Distribution and ecosystem risk assessment of polycyclic aromatic hydrocarbons in the Luan River, China

Cao, Zhiguo; Liu, Jingling; Luan, Yun; Li, Yongli; Ma, Meihu; Xu, Jun; Han, Shuai

doi:10.1007/s10646-010-0464-5

Cited by 236 publications

(105 citation statements)

References 20 publications

(17 reference statements)

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“…Threshold effects levels (TELs) and probable effects levels (PELs) are also considered to be widely applicable [85]. These two sets of SQGs can be used to identify three ranges of chemical concentrations, including a low range, within which adverse biological effects are unlikely to occur: below the TEL or ERL values; a middle range, within which adverse biological effects are possible: between the TEL or ERL and PEL or ERM values; and an upper range, within which adverse biological effects are likely to occur: above the PEL or ERM values [42,84,85]. As shown in Tables 5 and 6, all the sampling sites are below ERL values except for 13# and 9# in spring.…”

Section: Sediment Quality Guidelines (Sqgs)mentioning

confidence: 99%

Source and Ecological Risk Characteristics of PAHs in Sediments from Qinhuai River and Xuanwu Lake, Nanjing, China

Zhao

Qin

Cao

et al. 2017

Journal of Chemistry

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In order to investigate the residual characteristics, sources, and ecological risk of PAHs in sediment from urban rivers, the sediments of 15 typical sites from Qinhuai River and Xuanwu Lake, which are typical urban rivers and lake, were collected from October 2015 to July 2016; the sources of PAHs in sediment were also identified by several methods. Results showed that ∑PAHs concentration in sediment ranged from 796.2 ng/g to 10,470 ng/g with an average of 2,713.8 ng/g. High molecular weight PAHs with 4-5 rings were most prominent in the sediment during all four seasons. Source characterization studies based on the analysis of diagnostic ratio (triangular plot method), cluster analysis, and positive factor matrix analysis suggested that the PAHs of Qinhuai River Basin were mainly from pyrogenic origin (biomass and coal combustion and vehicular emission), and the petroleum source also cannot be ignored (specially in summer). Most individual PAHs occasionally affect the aquatic organisms. The highest benzo[a]pyreneequivalent doses (BaP eq dose) appear at the sites of sewage discharge and heavy traffic. So, the PAHs pollution sources of urban water body have obvious seasonal-dependent and human activities-dependent characteristics.

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Section: Sediment Quality Guidelines (Sqgs)mentioning

confidence: 99%

Source and Ecological Risk Characteristics of PAHs in Sediments from Qinhuai River and Xuanwu Lake, Nanjing, China

Zhao

Qin

Cao

et al. 2017

Journal of Chemistry

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“…However, since 1988 the streamflow in this region has decreased by 30.8% [1], and the sharply increasing water shortages in this basin have hindered economic development and resulted in severe environmental and ecological problems [2]. Therefore, studying the variability of the streamflow in the Luan River basin is of great importance.…”

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confidence: 99%

Sensitivity Analysis of the Effects of Climate Change on Streamflow Using Climate Elasticity in the Luan River Basin, China

Wang¹,

He²

2017

Pol. J. Environ. Stud.

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Natural streamflow is the main source of surface water and plays an important role in agricultural irrigation, socioeconomic development, and local eco-environmental conservation at the basin level. The Luan River basin is a sub-basin of the Hai River in northern China. This basin is an important economic centre of China and has a key role in the sustainable development of the economy and ecology. To alleviate water shortages in Tianjin and Tangshan, the Panjiakou and Daheiting Reservoir system, which is the primary water source for these two cities, was constructed in the 1980s to supply water to 6.5 million Pol. J. Environ. Stud. Vol. 26, No. 2 (2017), 837-845 Original Research AbstractStreamflow depends directly on climate conditions (e.g., precipitation and potential evapotranspiration, or E p ), which affect water balance at the basin scale. The present study was conducted to investigate the impact of climate change on streamflow in the Luan River basin, China. To assess the impact of climatic variation on streamflow, the temporal trends of streamflow were explored using the Mann-Kendall method and the sensitivities of streamflow to precipitation, potential evapotranspiration, and the aridity index were evaluated with the modified method of climate elasticity. The results showed that the average coefficients of sensitivity of streamflow to precipitation and potential evapotranspiration were 3.23 and -2.23, respectively, indicating that a 10% increase in precipitation or potential evapotranspiration would lead to a 32.3% increase or a 22.3% decrease in streamflow, respectively. Additionally, the average coefficient of sensitivity of streamflow to the aridity index was -2.53, which indicated that streamflow would decrease by 25.3% with a 10% increase in the aridity index. The average coefficients of the sensitivity of streamflow to climatic variation appeared to have an inverse relationship with the runoff coefficient, showing that the lower the streamflow of the basin became, the more sensitive the streamflow would be with respect to climatic variation.

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“…Kalf et al [32] proposed assessing ecological risk of some organic substances using a risk quotient (RQ) in 1997, and Cao et al improved the method by considering toxic equivalency factors in 2010. The improved method was demonstrated to be more accurate and scientific [12]. This improved method was used here to assess the ecological risk of PAHs in sediments from the southern part of the Haihe River system.…”

Section: Ecological Risk Assessmentmentioning

confidence: 99%

“…Therefore, monitoring and controlling of PAHs should be taken into consideration in the southern part of the Haihe River system. Cao et al [12] assessed the ecological risk of PAHs in water, surface sediments and bank soil of the Luan River and water of the Zhangweinan River with the same method. For the Luan River, the RQ ∑PAHs(MPCs) in water, sediments and bank soil were all zero except for water in Wuliehe (1.53).…”

Section: Ecological Risk Assessmentmentioning

confidence: 99%

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Pollution characteristics and ecological risk of polycyclic aromatic hydrocarbons (PAHs) in surface sediments of the southern part of the Haihe River system in China

Liu

Chen

et al. 2013

Chin. Sci. Bull.

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The southern part of the Haihe River system, the largest river system in the Haihe River Basin, is important to maintain a healthy ecosystem and safe drinking water as well as for the economic development of China. To assess the effect of rapid industrialization and urbanization on the pattern of polycyclic aromatic hydrocarbon (PAH) contamination, the PAH pollution characteristics of the southern part of the Haihe River system was investigated. Sixteen PAHs in surface sediments samples collected from 24 sites covering the southern part of the Haihe River system from the upstream to the estuaries were detected and analyzed. The total PAH concentration ranged from 258.77 to 11296.66 ng/g dry weight. On average, 2-, 3-, 4-, 5-and 6-ring PAHs comprised 25.32%, 27.22%, 22.62%, 14.89% and 9.96% of the total PAHs, respectively. Sites with high concentrations were concentrated in the Fuhe River, Fuyang River and Wei River, which are located near cities. A risk quotient (RQ) was used to assess the ecological risk of PAHs. The mean values of the RQ (MPCs) of individual PAHs were lower than 1.00, except for those of naphthalene (2.00) and pyrene (1.67). The RQ PAHs calculated for the samples indicated that the Xidayang reservoir and the estuary of the Ziya River were determined to be at a low risk level, while Baoding City, Handan City and Aixinzhuang were determined to be at a high risk level.polycyclic aromatic hydrocarbons, surface sediments, the southern part of the Haihe River system, distribution, composition profile, ecological risk assessment Citation:Liu F, Liu J L, Chen Q Y, et al. Pollution characteristics and ecological risk of polycyclic aromatic hydrocarbons (PAHs) in surface sediments of the southern part of the Haihe

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Distribution and ecosystem risk assessment of polycyclic aromatic hydrocarbons in the Luan River, China

Cited by 236 publications

References 20 publications

Source and Ecological Risk Characteristics of PAHs in Sediments from Qinhuai River and Xuanwu Lake, Nanjing, China

Source and Ecological Risk Characteristics of PAHs in Sediments from Qinhuai River and Xuanwu Lake, Nanjing, China

Sensitivity Analysis of the Effects of Climate Change on Streamflow Using Climate Elasticity in the Luan River Basin, China

Pollution characteristics and ecological risk of polycyclic aromatic hydrocarbons (PAHs) in surface sediments of the southern part of the Haihe River system in China

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