Emission Fluxes of Volatile Organic Compounds from Three Heavily Polluted Rivers in Guangzhou, South China

Emissions of volatile organic compounds (VOCs) were studied from three heavily polluted rivers (Huijiang, Nancun, and Zengbian Rivers) in Guangzhou, South China. A total of 49 species of VOCs were identified. Nancun River had the highest concentration of total VOCs (TVOCs), which ranged from 1,467 t...

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Veröffentlicht in:Water, air, and soil pollution air, and soil pollution, 2013-04, Vol.224 (4), p.1-10, Article 1509
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description Emissions of volatile organic compounds (VOCs) were studied from three heavily polluted rivers (Huijiang, Nancun, and Zengbian Rivers) in Guangzhou, South China. A total of 49 species of VOCs were identified. Nancun River had the highest concentration of total VOCs (TVOCs), which ranged from 1,467 to 5,522 μg m −3 . Trichloroethene, benzene, toluene, ethylbenzene, m / p -xylene, o -xylene, styrene, and 1,3,5-trimethylbenzene were the main pollutants. The levels of VOCs evaporated from the three rivers exhibited different patterns. Correlations between the concentrations of major VOCs were established and found to be statistically significant, except for o -xylene. The ratios of toluene/benzene, ethylbenzene/benzene, and xylene/benzene were estimated and found to be higher than widely reported in the literature. TVOC fluxes in the three rivers were calculated to be the range from 24.8 to 765 μg m −2  h −1 . This study provides a regional background for the emission inventories of VOCs from heavily polluted rivers in southern China and provides resource managers with important information to guide remediation and policy concerning VOC emissions to the environment.
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A total of 49 species of VOCs were identified. Nancun River had the highest concentration of total VOCs (TVOCs), which ranged from 1,467 to 5,522 μg m −3 . Trichloroethene, benzene, toluene, ethylbenzene, m / p -xylene, o -xylene, styrene, and 1,3,5-trimethylbenzene were the main pollutants. The levels of VOCs evaporated from the three rivers exhibited different patterns. Correlations between the concentrations of major VOCs were established and found to be statistically significant, except for o -xylene. The ratios of toluene/benzene, ethylbenzene/benzene, and xylene/benzene were estimated and found to be higher than widely reported in the literature. TVOC fluxes in the three rivers were calculated to be the range from 24.8 to 765 μg m −2  h −1 . This study provides a regional background for the emission inventories of VOCs from heavily polluted rivers in southern China and provides resource managers with important information to guide remediation and policy concerning VOC emissions to the environment.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s11270-013-1509-1</doi><tpages>10</tpages></addata></record>
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subjects Applied sciences
Atmospheric Protection/Air Quality Control/Air Pollution
Benzene
Chemical contaminants
Climate Change/Climate Change Impacts
Continental surface waters
Earth and Environmental Science
Emission inventories
Emissions
Environment
Environmental monitoring
Ethyl benzene
Ethylbenzene
Exact sciences and technology
Gases
Hydrocarbons
Hydrogeology
Landfill
Natural water pollution
Organic compounds
p-Xylene
Photochemical smog
Pollutants
Pollution
Rivers
Sediments
Soil Science & Conservation
Statistical analysis
Studies
Styrene
Toluene
Trichloroethylene
VOCs
Volatile organic compounds
Water pollution
Water Quality/Water Pollution
Water treatment
Water treatment and pollution
Xylene
title Emission Fluxes of Volatile Organic Compounds from Three Heavily Polluted Rivers in Guangzhou, South China
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