Urban fractionation of polycyclic aromatic hydrocarbons from Dalian soils

Wang, Zhen; Yang, Ping; Wang, Ying; Ma, Xindong

doi:10.1007/s10311-011-0341-3

Cited by 12 publications

(6 citation statements)

References 15 publications

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“…Furthermore, the fraction of LMW-PAHs increased slightly along the urban (15.77%), agricultural (19.46%), and montane (23.31%) soils. A similar gradient was reported by Wang et al (2011) [ 38 ] in PAH levels in Dalian soils, which could be explained by the “urban fractionation” effect.…”

Section: Resultssupporting

confidence: 87%

Distribution of the Soil PAHs and Health Risk Influenced by Coal Usage Processes in Taiyuan City, Northern China

Cheng

Cui

et al. 2020

IJERPH

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The quality of urban soil is closely related to the safety of public places and the guarantee of food quality. This study investigated the level, distribution, source, and carcinogenic risk of 16 U.S. EPA (Environmental Protection Agency) priority polycyclic aromatic hydrocarbons (PAHs) in urban, agricultural, and montane soil in Taiyuan. The ∑16PAHs level varied from 104.78 to 6594.63 ng g−1 with a mean of 922.93 ng g−1, and 47.73% of the soil samples were severely contaminated, with a concentration higher than 600 ng g−1. PAHs with higher molecular weight (≥4 rings) were dominant in PAHs profiles accounting for 80.92%. In the spatial distribution of PAHs, hotspots of ∑16 PAHs were observed near the industries, indicating pollutants emitted by the industries directly affect the surrounding soil quality. The sources identified by positive matrix factorization (PMF) indicated: coal combustion (40.77%), vehicle exhausts (32.94%), biomass combustion (14.89%), and coking source (11.40%). Coal-related sources (coal and coking sources) were the major contributors (52.17%) to PAHs and carcinogenic risk (46.48%) assessed by BaP toxic equivalent concentration in total soils. Therefore, the extensive usage of coal was the leading factor for PAH pollution and health risk in Taiyuan soil.

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Section: Resultssupporting

confidence: 87%

Distribution of the Soil PAHs and Health Risk Influenced by Coal Usage Processes in Taiyuan City, Northern China

Cheng

Cui

et al. 2020

IJERPH

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“…Biological indicators are also important to be followed. One good example is the use of Lichens to monitor industrial activities which emit toxic Polycyclic Aromatic Hydrocarbons (Srogi, 2007), from essential elements for bio-monitoring of soil and crops (Lee et al, 2004;Aničić et al, 2009;Wang et al, 2012). More than chemistry, there are many biomarkers (Sures et al, 2014) able to probe the conditions of an ecosystem and of the environment, similar to lichens as polycyclic aromatic hydrocarbons marker.…”

Section: Methods Development In Analytical Chemistry For Urban Enviromentioning

confidence: 99%

Method Development and Surface Utilization: Monitoring Environment in Urban Society Through Analytical Chemistry

Wonorahardjo¹

2019

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Environmental changes following urban area development must be considered. Analytical chemistry deals with methods to analyze environment and all impacts of changes in chemistry level. Probes to label problems in environmental level, such as presence of hazards, changes of crops behavior, loss of certain biodiversity, can be the key information. Method development and new friendly materials creation, are proposed to answer the challenge. Some new materials, like catalytic converter and gas reduction agents will find their significance. Moreover, the frame of green chemistry would lead one to better achievement dealing with natural law. Surface utilization and separation techniques are important concepts in application of material for analysis and probe designing, which are based on surface equilibrium. The aim of this paper is to summarize key concepts in materials' surface and the role of analytical chemistry methods in anticipating environmental problems including those that arise from the urban society development, based on chemistry findings reported. Some method development as well as materials design examples are also presented.

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“…Although standard treatment processes for industrial wastewater before discharge are available, PAHs cannot be removed completely (Li et al, 2012;Chen et al, 2020). 3) After coal is mined, the PAHs in the soil are not affected directly for a long time; however, coal transportation implies frequent vehicle traffic in the research area, with the combustion of automobile fuel releasing a large number of organic pollutants (Wang et al, 2012). The high PAH concentrations around CS5, CS7, CS8, and CS9 derive from the diffusion of coal dust into the topsoil and the release of native PAHs (Yun et al, 2017).…”

Section: Spatial Distribution Characteristics Of Pahs In Contaminated...mentioning

confidence: 99%

Characterization of polycyclic aromatic hydrocarbons in soil in a coal mining area, East China: Spatial distribution, sources, and carcinogenic risk assessment

Ren

Zheng²,

Hu³

et al. 2022

Front. Earth Sci.

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The polycyclic aromatic hydrocarbon (PAH) pollution process in mining areas, particularly coal mining areas, has accelerated because of coal chemical production and gangue accumulation. In this study, PHAs concentrations in surface soil was determined via gas chromatography–mass spectrometry. The composition, spatial distribution and sources of PAHs were analyzed, and their potential carcinogenic risks were evaluated.Results showed a wide PAH concentration range (218–1548 ng g−1). The high molecular weight proportion in contaminated areas was significantly higher than in uncontaminated areas. Clear differences in PAH distribution were detected in contaminated areas, with higher concentrations in the soils near an industrial park and coal gangue piles. The results of positive matrix factorization (PMF) in contaminated area revealed that coking, oil and biomass combustion, and vehicle emissions and coal combustion, contributed 31%, 26%, 24%, and 19%, respectively, to the detected PAHs. In contrast with the 10% contribution rate of the coking source in uncontaminated areas. The Monte Carlo method was used to assess the cancer risk to residents in the study areas. The carcinogenic health risk values for adults in the contaminated areas was higher than the safety standard (2.92 × 10−6) prescribed by the United States Environmental Protection Agency at 95% confidence level. Sensitivity analysis showed that the relative exposure duration (ED) and soil surface area of skin exposure were the most significant parameters for adults, and ED and body weight for children. The cancer risk for both adults and children in contaminated areas was five times than that in uncontaminated areas.

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Urban fractionation of polycyclic aromatic hydrocarbons from Dalian soils

Cited by 12 publications

References 15 publications

Distribution of the Soil PAHs and Health Risk Influenced by Coal Usage Processes in Taiyuan City, Northern China

Distribution of the Soil PAHs and Health Risk Influenced by Coal Usage Processes in Taiyuan City, Northern China

Method Development and Surface Utilization: Monitoring Environment in Urban Society Through Analytical Chemistry

Characterization of polycyclic aromatic hydrocarbons in soil in a coal mining area, East China: Spatial distribution, sources, and carcinogenic risk assessment

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