Distribution, partitioning and sources of polycyclic aromatic hydrocarbons in the water–SPM–sediment system of Lake Chaohu, China

Qin, Ning; He, Wei; Kong, Xiangzhen; Liu, Wenxiu; He, Qing; Yang, Bin; Wang, Qingmei; Yang, Chen; Jiang, Yu-Jiao; Jørgensen, Sven Erik; Xu, Fu-Liu; Zhao, Xiaoli

doi:10.1016/j.scitotenv.2014.07.045

Cited by 121 publications

(41 citation statements)

References 78 publications

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“…As represented in Table 3, the mean values of Log K oc ' for PAHs ranged 0.47-2.13 in the normal season and 0.22-2.21 in the wet season. The values of Log K oc ' varied across different sampling sites, which might be attributed to variations in PAH concentrations and TOC content in sediment from different sampling sites [21]. Moreover, the mean observed log K oc ' values for PAHs were all lower than the predicted values of log K oc and log K ow , suggesting that PAHs had the tendency to adsorb onto sediment instead of being exchanged with the water phase [28].…”

Section: Partitioning Pahs In a Sediment-water Systemmentioning

confidence: 92%

“…Then 2 L of each water sample filtered with 0.45 μm filters passed through the prewashed cartridge (Cleanert S C18-SPE, Agela Technologies Inc., USA) at a constant rate of 5 mL/min under vacuum. Then the cartridge was respectively eluted with 10 mL of DCM and the volume of the extracts was collected and concentrated to near dryness using a rotary vacuum evaporation apparatus (RE-52AA, Shanghai Yarong Inc., China) and adjusted to 1 mL with DCM for gas chromatography (GC) analysis [21]. Dichloromethane (DCM) and methanol were all purchased from Sinopharm Chemical Reagent Co., Ltd.…”

Section: Water Samplesmentioning

confidence: 99%

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Assessing 16 Polycyclic Aromatic Hydrocarbons (PAHs) in River Basin Water and Sediment Regarding Spatial-Temporal Distribution, Partitioning, and Ecological Risks

Chen¹,

Sun²,

Zhang³

et al. 2018

Pol. J. Environ. Stud.

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This work investigated the distribution, partitioning, and ecological risks of 16 polycyclic aromatic hydrocarbons (PAHs) in water and sediment of the Yinma River Basin in China in normal, wet, and dry seasons. Sixteen PAHs were analyzed in 17 paired sets of water and sediment samples collected from the study area. The concentrations of PAHs in water and sediment showed spatial-temporal variations, the concentrations in water ranged from 167.6 to 373.9 ng/L with a mean value of 227.9 ng/L in the normal season, from 186.0 to 386.9 ng/L with a mean value of 281.6 ng/L in the wet season, and ranged from 147.0 to 315.9 ng/L with an average value of 218.6 ng/L in the dry season, while concentrations in sediment varied from 895.6 to 2,518.2 ng/g with a mean value of 1,739.4 ng/g in the normal season, from 1,233.0 to 4,763.0 ng/g with a mean value of 2,122.6 ng/g in the wet season, and ranged from 914.2 to 5,678.5 ng/g with an average value of 1,943.7 ng/g in the dry season. Partitioning of PAHs in water and sediment was studied and the result showed that PAHs tend to absorb in sediment. Ecological risk assessments were conducted based on the species-sensitivity distribution (SSD) model, with results suggesting that ecological risks of individual PAHs in water and sediment were little, and the multiple congeners of PAHs in sediment from some sampling sites had ecological risks. Primary sources of 16 PAHs in water and sediment were identified with isomer ratios, and results indicated that primary sources of PAHs in water were identified as a mixture pattern of petroleum and combustion sources, and in sediment were identified as a mixture pattern of petroleum and grass, wood and coal combustion sources.

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Section: Partitioning Pahs In a Sediment-water Systemmentioning

confidence: 92%

Section: Water Samplesmentioning

confidence: 99%

Assessing 16 Polycyclic Aromatic Hydrocarbons (PAHs) in River Basin Water and Sediment Regarding Spatial-Temporal Distribution, Partitioning, and Ecological Risks

Chen¹,

Sun²,

Zhang³

et al. 2018

Pol. J. Environ. Stud.

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“…And Phe, Ant, Fla, and Chr were indicative of coal combustion [71,76]. Therefore, factor 3 ( 3 ) was identified as petroleum source > coal combustion [79,80]. Petroleum source and coal combustion are a major source in the Qinhuai River basin, contributing about 34.9% of PAHs throughout the year.…”

Section: Source Estimates From Positive Matrix Factorization (Pmf)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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“…PAHs are a kind of strong carcinogens and are susceptible to bio-accumulation [1]. Increased human production activities have result in increased levels of PAHs in various environmental media, including the air, surface and ground water [2]. Since PAHs concentration in all kinds of environments is too low to detected by many popular analytical instruments.…”

Section: Introductionmentioning

confidence: 99%

Composite MOFs as adsorbents for solid phase extraction combined with high performance liquid chromatography for the determination of polycyclic aromatic hydrocarbons in water

Yang

2019

E3S Web Conf.

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Metal-organic frameworks (MOFs) are a kind of porous materials, which has large specific surface area, high porosity, diverse structure, excellent thermal stability and solvent stability etc. So, it has attracted extensive attention as an adsorbent for solid phase extraction (SPE). Polycyclic aromatic hydrocarbons (PAHs) are a kind of persistent organic pollutants that can lead serious hurts to the ecological environment and human health. The purpose of this paper is to optimize the types and proportion of mixed lanthanum based MOFs, and to improve the enrichment efficiency of SPE. Then a method to analysis PAHs by SPE-HPLC was established. Several main factors that could effected the pre-treatment efficient, such as the amount of adsorbent, the amount and pH of PAHs water sample, and the volume of eluent, were investigated. After optimized, the extraction of seven PAHs in water sample was achieved and the recovery rates were 80.67%, 80.06%, 54.69%, 82.62%, 118.87%, 70.30% and 95.57% respectively.

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Distribution, partitioning and sources of polycyclic aromatic hydrocarbons in the water–SPM–sediment system of Lake Chaohu, China

Cited by 121 publications

References 78 publications

Assessing 16 Polycyclic Aromatic Hydrocarbons (PAHs) in River Basin Water and Sediment Regarding Spatial-Temporal Distribution, Partitioning, and Ecological Risks

Assessing 16 Polycyclic Aromatic Hydrocarbons (PAHs) in River Basin Water and Sediment Regarding Spatial-Temporal Distribution, Partitioning, and Ecological Risks

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

Composite MOFs as adsorbents for solid phase extraction combined with high performance liquid chromatography for the determination of polycyclic aromatic hydrocarbons in water

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