Status, Sources and Potential Risk of Polycyclic Aromatic Hydrocarbons in Soils from Hexi Corridor in Northwest China

Jiang, Yufeng; Yuan, Longmiao; Liang, Xinru; Nan, Zhijiang; Deng, Xueru; Ma, Fengfeng

doi:10.1007/s00128-021-03312-6

Cited by 4 publications

(1 citation statement)

References 27 publications

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“…2 c). Nap is released during incomplete combustion (Simcik et al 1999 ); Flu is typical of coal combustion (Jiang et al 2021 ; Larsen & Baker 2003 ); and Acy was previously identified as a coal-burning marker (Wang et al 2015 ). Factor 4 thus represents coal burning.…”

Section: Resultsmentioning

confidence: 99%

Integrated Insights into Source Apportionment and Source-Specific Health Risks of Potential Pollutants in Urban Park Soils on the Karst Plateau, SW China

Liang

Zhu

et al. 2023

Expo Health

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Polycyclic aromatic hydrocarbons (PAHs) and heavy metal(loid)s (HMs) pose risks to environmental and human health. Identification of priority control contaminants is important in guiding the management and control of these synchronous pollutants. A total of 247 soil samples were collected from 64 urban parks in the karst plateau city of Guiyang in SW China to determine the concentrations, spatial distributions, and health risks of PAHs and HMs. The results indicate that dibenz(ah)anthracene and benzo(a)pyrene are the main PAHs species of high ecological risk, and Cr, Mn, and Ni pose elevated ecological risk among the HMs. Four sources were identified for PAHs (biomass burning, coke oven, traffic sources, and coal burning) and HMs (traffic sources, coal burning, industrial sources, and natural sources). The non-carcinogenic risk (NCR) and total carcinogenic risk (TCR) of PAHs were all determined to be negligible and at acceptable levels, several orders of magnitude below those of HMs. The NCR and TCR values of HMs were relatively high, especially for children (11.9% of NCR > 1; 79.1% of TCR > 10 −4 ). Coal burning and natural sources make the greatest contributions to the NCR and TCR values from karst park soils in Guiyang. Considering HMs bioavailability, NCR and TCR values were rather low, due to the high residual HM fractions. Integrated insights into source specific ecological and human health risk indicate future directions for management and control of synchronous PAH and HM pollution, particularly for karst plateau areas. Supplementary Information The online version contains supplementary material available at 10.1007/s12403-023-00534-3.

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