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Environ Int

Title:		Volatile and semi-volatile organic compounds in landfill gas: Composition characteristics and health risks
Author(s):		Pan Q; Liu QY; Zheng J; Li YH; Xiang S; Sun XJ; He XS;
Address:		"State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541000, China. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China. College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541000, China. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China. Electronic address: hexs82@126.com"
Journal Title:		Environ Int
Year:		2023
Volume:		20230322
Issue:
Page Number:		107886 -
DOI:		10.1016/j.envint.2023.107886
ISSN/ISBN:		1873-6750 (Electronic) 0160-4120 (Linking)
Abstract:		"Gas emitted from landfills contains a large quantity of volatile organic compounds (VOCs) and semi-volatile organic compounds (SVOCs), some of which are carcinogenic, teratogenic, and mutagenic, thereby posing a serious threat to the health of landfill workers and nearby residents. However, the global hazards of VOCs and SVOCs in landfill gas to human health remain unclear. To quantify the global risk distributions of these pollutants, we collected the composition and concentration data of VOCs and SVOCs from 72 landfills in 20 countries from the core database of Web of Science and assessed their human health risks as well as analyzed their influencing factors. Organic compounds in landfill gas were found to primarily result from the biodegradation of natural organic waste or the emissions and volatilization of chemical products, with the concentration range of 1 x 10(-1)-1 x 10(6) mug/m3. The respiratory system, in particular, lung was the major target organ of VOCs and SVOCs, with additional adverse health impacts ranging from headache and allergies to lung cancer. Aromatic and halogenated compounds were the primary sources of health risk, while ethyl acetate and acetone from the biodegradation of natural organic waste also exceeded the acceptable levels for human health. Overall, VOCs and SVOCs affected residents within 1,000 m of landfills. Air temperature, relative humidity, air pressure, wind direction, and wind speed were the major factors that influenced the health risks of VOCs and SVOCs. Currently, landfill risk assessments of VOCs and SVOCs are primarily based on respiratory inhalation, with health risks due to other exposure routes remaining poorly elucidated. In addition, potential health risks due to the transport and transformation of landfill gas emitted into the atmosphere should be further studied"
Keywords:		Humans *Volatile Organic Compounds/analysis *Air Pollutants/analysis Environmental Monitoring Risk Assessment Waste Disposal Facilities Landfill gas Semi-volatile organic compounds Volatile organic compounds Waste;
Notes:		"MedlinePan, Qi Liu, Qing-Yu Zheng, Jing Li, Yan-Hong Xiang, Song Sun, Xiao-Jie He, Xiao-Song eng Research Support, Non-U.S. Gov't Review Netherlands 2023/03/30 Environ Int. 2023 Apr; 174:107886. doi: 10.1016/j.envint.2023.107886. Epub 2023 Mar 22"