Relationships between PAHs and PCBs, and quantitative source apportionment of PAHs toxicity in sediments from Fenhe reservoir and watershed

Tian, Yingze; Li, Weihong; Shi, Guoliang; Feng, Yinchang; Wang, Yuqiu

doi:10.1016/j.jhazmat.2012.12.054

Cited by 90 publications

(34 citation statements)

References 35 publications

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“…Zhi et al (2015)) studied the PAHs in Poyang Lake and found that the level of PAHs can exceed 266 ng L −1 . Several PAHs, such as BaA, Chr, BaP, BkF, BbF, IcdP, and DahA, have been identified as potentially carcinogenic (Lee and Dong 2010;Tian et al 2013). The total concentrations of seven carcinogenic PAHs (ΣCPAHs) in water and SPM ranged from 7.63 to 13.02 ng L −1 (with an average of 9.71 ng L −1 ), and 276.55 to 1216.89 ng g − 1 dw (with an average of 565.73 ng g −1 dw), respectively.…”

Section: Spatial Distribution Of Pahs In Water and Spmmentioning

confidence: 99%

Distribution, sources, and ecological risk assessment of polycyclic aromatic hydrocarbons in the water and suspended sediments from the middle and lower reaches of the Yangtze River, China

Wang

Zhao

et al. 2016

Environ Sci Pollut Res

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Samples were collected from the middle and lower reaches of the Yangtze River, China, to study the concentrations, distributions, and compositions of 16 US-EPA priority polycyclic aromatic hydrocarbons (PAHs) in water and suspended particulate matter (SPM). We also evaluated sources of the PAHs and their potential toxicity. Total concentrations of the PAHs (ΣPAHs) in water ranged from 17.33 to 77.12 ng L −1 , and in SPM, the levels ranged from 595.91 to 2473.74 ng g −1 . Total concentrations of seven carcinogenic PAHs (ΣCPAHs) ranged from 7.63 to 13.02 ng L −1 in water and 276.55 to 1216.89 ng g −1 in SPM. PAH levels in water samples were relatively low, and those in the lower reaches were higher than in the middle reaches. SPM samples had higher levels of PAHs, especially in the lower reaches and in Dongting Lake and Poyang Lake. Principal component analysis (PCA) with multiple linear regression analysis (MLR) was performed to quantitatively characterize the PAH sources. Two factors and their contributions were identified from water samples. Coal and wood combustion accounted for 74.1 % of the PAHs, and petroleum emissions explained 25.9 % of the PAHs. Three source factors were identified from SPM samples: these were vehicular emissions (46.3 % of PAHs), wood and coal combustion (40.4 % of PAHs), and petrogenic sources (13.3 %). Ecological risk assessment indicated that a moderate undesirable impact will be caused by PAHs, and some control measures and remedial actions should be conducted.

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Section: Spatial Distribution Of Pahs In Water and Spmmentioning

confidence: 99%

Distribution, sources, and ecological risk assessment of polycyclic aromatic hydrocarbons in the water and suspended sediments from the middle and lower reaches of the Yangtze River, China

Wang

Zhao

et al. 2016

Environ Sci Pollut Res

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“…However, BghiP, IN, and DBA, as well as benzo(a)pyrene (BaP) and benzo(a)naphtalene (BaA), were linked with gasoline emission sources [25][26][27]. Gunawardena et al [28] concluded that heavy-duty traffic primarily generated five-and six-ring PAHs.…”

Section: Results For Individual Pahsmentioning

confidence: 99%

Polycyclic Aromatic Hydrocarbons in the Particles Emitted from the Diesel and Gasoline Engines

Szewczyńska¹,

Dąbrowska²,

Pyrzyńska³

2017

Pol. J. Environ. Stud.

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Emissions from motor vehicles have substantially changed over the last decade because of new fuels, changed engine designs, and improved emission-control technology. Engine exhaust gases form a mixture of substances in various states. Gases are dominant, but liquids and solids from incomplete combustion of fuel and engine oil are also present. Particulate matter (PM) emitted from diesel and gasoline engines is a mixture of soot and soluble organic fraction, which is composed of an aromatic fraction resulting from unburned hydrocarbons (benzene, toluene, styrene, xylene) from the paraffin acidic phase (cresol, benzoic acid) and the alkaline phase (pyridine, aniline). The remaining components adsorbed at the carbon core include inter alia water-soluble sulphates, nitrates, metals, and other carbon particulates. The concentrations, modal structures, and temporal patterns of urban particles are strongly influenced by traffic emissions, which are identified as the main source of particle number in urban environments [1].Polycyclic aromatic hydrocarbons (PAHs) are contaminants widespread in the environment, and vehicular emissions have long been recognized as the Pol. J. Environ. Stud. Vol. 26, No. 2 (2017), 801-807 AbstractPolycyclic aromatic hydrocarbons (PAHs) are contaminants widespread in the environment and vehicular emissions have long been recognized as the most important anthropogenic sources of PAHs in urban air Polycyclic aromatic hydrocarbons (PAHs) emitted in the exhaust gases of diesel and petrol engines using different fuels were quantified. Size fractionated chemical analysis of particles in vehicle emissions were carried out by sampling with an electrical low pressure multi-stage impactor ELPI. The mean concentrations of total PAHs adsorbed onto the particulate matter in the rage of 0.03-0.25 μm emitted from the exhaust gases were 48.3, 128.2 and 83.0 ng·m -3 , respectively from three kinds of diesel fuels. Results indicated that PAHs present in the last two fraction (0.17-0.25 μm) have the highest contribution in the total content of these compounds. In the collected fractions of particulate matter emitted in gasoline engine exhaust 12 compounds were identified in the 0.25 µm fraction and 9 PAHs in the 0.17 µm fraction.

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“…Organic contaminants in this study include, n-alkanes, polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs). Such organic compounds may have mutagenic and carcinogenic properties (Tian et al, 2013). Therefore, understanding the SPM transport behaviour is of special interest.…”

Section: Introductionmentioning

confidence: 99%

Characterisation of the dynamics of organic contaminants ( n -alkanes, PAHs and PCBs) in a coastal area

Syakti

Oursel

Garnier

et al. 2017

Marine Pollution Bulletin

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Relationships between PAHs and PCBs, and quantitative source apportionment of PAHs toxicity in sediments from Fenhe reservoir and watershed

Cited by 90 publications

References 35 publications

Distribution, sources, and ecological risk assessment of polycyclic aromatic hydrocarbons in the water and suspended sediments from the middle and lower reaches of the Yangtze River, China

Distribution, sources, and ecological risk assessment of polycyclic aromatic hydrocarbons in the water and suspended sediments from the middle and lower reaches of the Yangtze River, China

Polycyclic Aromatic Hydrocarbons in the Particles Emitted from the Diesel and Gasoline Engines

Characterisation of the dynamics of organic contaminants ( n -alkanes, PAHs and PCBs) in a coastal area

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