Surface water polycyclic aromatic hydrocarbons (PAH) in urban areas of Nanjing, China. 2017

Chunhui Wang, and Shenglu Zhou, and Shaohua Wu, and Jing Song, and Yaxing Shi, and Baojie Li, and Hao Chen
School of Geographic and Oceanographic Sciences, Nanjing University, 163 Xianlin Road, Qixia District, Nanjing, Jiangsu 210023, China E-mail: zhousl@nju.edu.cn.

The concentration, sources and environmental risks of polycyclic aromatic hydrocarbons (PAHs) in surface water in urban areas of Nanjing were investigated. The range of ∑16PAHs concentration is between 4,076 and 29,455 ng/L, with a mean of 17,212 ng/L. The composition of PAHs indicated that 2- and 3-ring PAHs have the highest proportion in all PAHs, while the 5- and 6-ring PAHs were the least in proportion. By diagnostic ratio analysis, combustion and petroleum were a mixture input that contributed to the water PAH in urban areas of Nanjing. Positive matrix factorization quantitatively identified four factors, including coke oven, coal combustion, oil source, and vehicle emission, as the main sources. Toxic equivalency factors of BaP (BaPeq) evaluate the environmental risks of PAHs and indicate the PAH concentration in surface water in urban areas of Nanjing had been polluted and might cause potential environmental risks. Therefore, the PAH contamination in surface water in urban areas of Nanjing should draw considerable attention.

UI MeSH Term Description Entries
D011084 Polycyclic Aromatic Hydrocarbons Aromatic hydrocarbons that contain extended fused-ring structures. Polycyclic Aromatic Hydrocarbon,Polycyclic Hydrocarbons, Aromatic,Polynuclear Aromatic Hydrocarbon,Polynuclear Aromatic Hydrocarbons,Aromatic Hydrocarbon, Polycyclic,Aromatic Hydrocarbon, Polynuclear,Aromatic Hydrocarbons, Polycyclic,Aromatic Hydrocarbons, Polynuclear,Aromatic Polycyclic Hydrocarbons,Hydrocarbon, Polycyclic Aromatic,Hydrocarbon, Polynuclear Aromatic,Hydrocarbons, Aromatic Polycyclic,Hydrocarbons, Polycyclic Aromatic,Hydrocarbons, Polynuclear Aromatic
D002681 China A country spanning from central Asia to the Pacific Ocean. Inner Mongolia,Manchuria,People's Republic of China,Sinkiang,Mainland China
D003031 Coal A natural fuel formed by partial decomposition of vegetable matter under certain environmental conditions. Anthracite,Bituminous Coal,Brown Coal,Lignite,Lignitious Coal,Peat Coal,Soft Coal,Anthracites,Bituminous Coals,Brown Coals,Coal, Bituminous,Coal, Brown,Coal, Lignitious,Coal, Peat,Coal, Soft,Coals,Coals, Bituminous,Coals, Brown,Coals, Lignitious,Coals, Peat,Coals, Soft,Lignites,Lignitious Coals,Peat Coals,Soft Coals
D003077 Coke A residue of coal, left after dry (destructive) distillation, used as a fuel. Cokes
D004784 Environmental Monitoring The monitoring of the level of toxins, chemical pollutants, microbial contaminants, or other harmful substances in the environment (soil, air, and water), workplace, or in the bodies of people and animals present in that environment. Monitoring, Environmental,Environmental Surveillance,Surveillance, Environmental
D004787 Environmental Pollution Contamination of the air, bodies of water, or land with substances that are harmful to human health and the environment. Pollution, Environmental,Soil Pollution,Pollution, Soil
D001335 Vehicle Emissions Gases, fumes, vapors, and ODORANTS escaping from the cylinders of a gasoline or diesel internal-combustion engine. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed & Random House Unabridged Dictionary, 2d ed) Automobile Exhaust,Diesel Exhaust,Engine Exhaust,Vehicle Emission,Vehicular Emission,Traffic-Related Pollutants,Transportation Emissions,Vehicular Emissions,Emission, Vehicle,Emission, Vehicular,Emissions, Transportation,Emissions, Vehicle,Emissions, Vehicular,Exhaust, Automobile,Exhaust, Diesel,Exhaust, Engine,Pollutants, Traffic-Related,Traffic Related Pollutants
D014867 Water A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Hydrogen Oxide
D014874 Water Pollutants, Chemical Chemical compounds which pollute the water of rivers, streams, lakes, the sea, reservoirs, or other bodies of water. Chemical Water Pollutants,Landfill Leachate,Leachate, Landfill,Pollutants, Chemical Water

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