Polycyclic aromatic hydrocarbons (PAHs) in urban stream sediments of Suzhou Industrial Park, an emerging eco-industrial park in China: Occurrence, sources and potential risk

Autor: Afeng Chen, Staci L. Massey Simonich, Houqi Liu, Binbin He, Hanyang Liu, Qing Wang, Zijiao Yuan, Xiaoguo Wu, Jiahui Fu
Jazyk: angličtina
Rok vydání: 2021
Předmět:
China
Geologic Sediments
Urban stream
Health
Toxicology and Mutagenesis
0211 other engineering and technologies
02 engineering and technology
010501 environmental sciences
01 natural sciences
Risk Assessment
Environmental pollution
PAHs
Rivers
Eco-industrial park
polycyclic compounds
Industry
Coal
GE1-350
Polycyclic Aromatic Hydrocarbons
0105 earth and related environmental sciences
Vehicle Emissions
021110 strategic
defence & security studies
Risk level
Suzhou industrial park
business.industry
Potential risk
Public Health
Environmental and Occupational Health
Sediment
General Medicine
Contamination
Pollution
Environmental sciences
Urban stream sediment
TD172-193.5
Industrial park
Environmental chemistry
Environmental science
Anthropogenic activities
business
Water Pollutants
Chemical
Environmental Monitoring
Zdroj: Ecotoxicology and Environmental Safety, Vol 214, Iss, Pp 112095-(2021)
ISSN: 0147-6513
Popis: In this study, urban stream sediment samples were collected in the Suzhou Industrial Park (SIP), one of the earliest national demonstration eco-industrial parks of China. PAHs were analyzed in these sediments, and concentrations of total PAHs were 180–81,000 ng g−1 (5700 ± 14,000 ng g−1). Medium molecular weight (4- ring) PAHs were predominant (42 ± 12%), followed by high molecular weight (5- and 6- ring) PAHs (31 ± 10%). No correlation was found between concentrations of PAHs and land uses of SIP in this study. Diagnostic ratios and a positive matrix factorization (PMF) model indicated that coal/biomass combustion might be the primary PAH source (61%), followed by non-combustion sources (21%) and vehicular emission (18%). According to the spatial analysis, PAHs in the sediments of SIP might be mainly associated with the coal/biomass combustion in the northeast industrial zone. Residential & commercial activities seem not to be the major causes of PAH contamination. Total PAH toxic equivalent concentrations, effect range low/effect range median values, and mean effects range–median quotient all showed that PAHs were present at a low toxicity risk level in most regions of the SIP. However, vigilance is required at some sampling sites with extremely high PAH concentrations or high mean effects range–median quotient.
Databáze: OpenAIRE
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