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

The distribution and ecosystem risk of 16 polycyclic aromatic hydrocarbons (PAHs) in the Luan River, China, has been investigated. ∑PAHs levels ranged from 37.3 to 234 ng L⁻¹ in water, from 20.9 to 287 ng g⁻¹ in sediment and from 36.9 to 378 ng g⁻¹ in bank soil, respectively. A method based on toxic...

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Published in:Ecotoxicology (London) 2010-06, Vol.19 (5), p.827-837
Main Authors: Cao, Zhiguo, Liu, Jingling, Luan, Yun, Li, Yongli, Ma, Muyuan, Xu, Jie, Han, Shouliang
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description The distribution and ecosystem risk of 16 polycyclic aromatic hydrocarbons (PAHs) in the Luan River, China, has been investigated. ∑PAHs levels ranged from 37.3 to 234 ng L⁻¹ in water, from 20.9 to 287 ng g⁻¹ in sediment and from 36.9 to 378 ng g⁻¹ in bank soil, respectively. A method based on toxic equivalency factors (TEFs) and risk quotient (RQ) which can be used to assess the ecosystem risk of ∑PAHs sensitively and accurately was invented and a new ecosystem risk classification of ∑PAHs was suggested. The results indicated that the PAHs in aquatic environment of the Luan River resulted in low ecosystem risk and at S9 the ecosystem risk of PAHs in water was moderate. Low and moderate molecular PAHs presented much more ecosystem risk than high molecular PAHs in the Luan River basin and the mean ecosystem risk in water was higher than that in sediment and bank soil.
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A method based on toxic equivalency factors (TEFs) and risk quotient (RQ) which can be used to assess the ecosystem risk of ∑PAHs sensitively and accurately was invented and a new ecosystem risk classification of ∑PAHs was suggested. The results indicated that the PAHs in aquatic environment of the Luan River resulted in low ecosystem risk and at S9 the ecosystem risk of PAHs in water was moderate. 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source Springer Nature:Jisc Collections:Springer Nature Read and Publish 2023-2025: Springer Reading List
subjects Aquatic ecosystems
Aquatic environment
Banks
China
Composition profile
Concentration
Earth and Environmental Science
Ecology
Ecosystem
Ecosystem assessment
Ecosystem risk
Ecosystems
Ecotoxicology
Environment
Environmental Management
Environmental Monitoring - methods
Equivalence
Freshwater
Geologic Sediments - chemistry
Polyallylamine hydrochloride
Polycyclic aromatic hydrocarbons
Polycyclic aromatic hydrocarbons (PAHs)
Polycyclic Aromatic Hydrocarbons - analysis
Risk
Risk assessment
Risk Assessment - methods
River basins
Rivers
Rivers - chemistry
Sediments
Sediments (Geology)
The Luan River
Water Pollutants, Chemical - analysis
title Distribution and ecosystem risk assessment of polycyclic aromatic hydrocarbons in the Luan River, China
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