Combination of Unmix and positive matrix factorization model identifying contributions to carcinogenicity and mutagenicity for polycyclic aromatic hydrocarbons sources in Liaohe delta reed wetland soils, China

Lang, Yinhai; Li, Guoliang; Wang, Xiaomei; Peng, Peng; Bai, Jie

doi:10.1016/j.chemosphere.2014.08.048

Cited by 33 publications

(5 citation statements)

References 41 publications

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“…The results obtained from previous studies had reached similar conclusions, such as those relating to agricultural soils in Shanghai [5], suburban vegetable field soils of Changchun [25], and agricultural soils in eastern China [72]. However, in wetland soils, the main sources of PAHs were petrogenic sources, i.e., biomass burning, diesel emission, and coal combustion [73,74]. The primary sources of PAHs in coking plants were derived from the combustion of coal and biomass [56], and those from oil fields came from petroleum sources and vehicular traffic sources [46].…”

Section: Discussionsupporting

confidence: 57%

Distribution, Sources, and Health Risk of Polycyclic Aromatic Hydrocarbons in Farmland Soil of Helan, China

Zhang,

Wang,

Zhang

et al. 2023

Sustainability

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With the development of industry and agriculture, polycyclic aromatic hydrocarbons (PAHs) in the agricultural sector have gradually increased to different degrees, leading to an escalation in environmental pollution. In turn, this escalation has presented a significant possibility of endangering agricultural practices on farmland and has had a serious impact on regional sustainable development. Therefore, a total of 117 samples of soil were gathered to research the pollution level, distribution, sources, and health risk of PAHs in Helan farmland soils. A reference was used for the identification and quantification of PAH content using high-performance liquid chromatography (HPLC) with an ultraviolet detector, and their spatial distribution was analyzed utilizing the Arc Geographic Information System (ArcGIS). The source of PAHs was analyzed by absolute principal component scores/multiple linear regression (APCS-MLR). The lifetime cancer risk increment model and Monte Carlo sensitivity analysis were used to assess the potential health hazards to humans associated with PAHs in soil. Within the current study area, PAHs were higher in the northwest. The results showed that the total content of PAHs in Helan farmland soil ranged from 17.82 to 1544.73 ng·g−1 with a mean of 408.18 ng·g−1, which indicated the middle degree of pollution in farmland soil. The verification results of the APCS-MLR model showed that the correlation coefficient between the measured values and the predicted values ranged from 0.661 to 0.984, which suggested that the APCS-MLR model demonstrated favorable suitability for conducting source analysis of PAHs in the soil within the study region. Based on the contribution of PAHs from each source, the main sources of PAHs in Helan farmland soil were the combustion source (biomass, diesel, and natural gas combustion) and the transportation source (gasoline for vehicles and traffic exhaust emissions). The health risks’ estimation showed that PAHs in farmland soil did not have potential health risks for adults but represented a carcinogenic risk for children via the main exposure pathway of ingestion with the mean intake of 1.28 × 10−5. Meanwhile, the carcinogenic risks (CRs) of dermal contact for the mean value of adults (9.32 × 10−7) was found to be higher than that for children (3.18 × 10−8). From the Monte Carlo simulation, the soil particle uptake rate was the most sensitive to the health risks of children and adults with risk probabilities of 26% and 52%, and the risk probabilities from body weight were −11% and −1%, whose negative value indicated that the increase in body weight could reduce the health risks to human. These findings could provide reference for the study of soil organic pollution in Helan farmland soil and contribute significantly to the preservation of the ecological environment, maintaining human health and safety, and promoting the sustainable development of regional farmland.

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Section: Discussionsupporting

confidence: 57%

Distribution, Sources, and Health Risk of Polycyclic Aromatic Hydrocarbons in Farmland Soil of Helan, China

Zhang,

Wang,

Zhang

et al. 2023

Sustainability

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“…Factor numbers ranging from three to eight were considered in order to choose the "optimal solution." "Robust" mode was adopted to simulate for eliminating the effect of individual extreme value [21,30,[64][65][66][67][68][69]. Three factors were eventually chosen since it gave (robust) value ranging from 21041.1 to 23360.0, which converged.…”

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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“…Nap emissions may be due to the combustion of fossil fuels, the fraction of petroleum products, wood, and crude oil, 66,67 while emissions of Chr, Pyr, and Fluo are commonly associated with diesel exhaust. 68,69 Previous studies indicated that BaP emission is associated with the partial combustion of fossil fuel, 70 IcdP, BghiP, and DahA as indicators of motor vehicle exhaust, 71,72 BkF and BbF are linked to the combustion of fossil fuel, 73 and according to the literature, 74,75 Flo is a crude oil contributor. This result shows that PC1 is a petrogenic source, given that most PAHs emerged from biomass/coal combustion and petroleum and vehicle emissions.…”

Section: Resultsmentioning

confidence: 99%

Distribution, sources, and ecological risk assessment of polycyclic aromatic hydrocarbons in agricultural and dumpsite soils in Sierra Leone

Janneh

Zhang

et al. 2023

RSC Adv.

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Combination of Unmix and positive matrix factorization model identifying contributions to carcinogenicity and mutagenicity for polycyclic aromatic hydrocarbons sources in Liaohe delta reed wetland soils, China

Cited by 33 publications

References 41 publications

Distribution, Sources, and Health Risk of Polycyclic Aromatic Hydrocarbons in Farmland Soil of Helan, China

Distribution, Sources, and Health Risk of Polycyclic Aromatic Hydrocarbons in Farmland Soil of Helan, China

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

Distribution, sources, and ecological risk assessment of polycyclic aromatic hydrocarbons in agricultural and dumpsite soils in Sierra Leone

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