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大型城市固体废物填埋场中的挥发性有机化合物对区域环境的影响

Liyuan Zhang¹, Guanyu Nian², Jiahao Zhong²

¹School of Water and Environment, Chang'an University, Xi'an, China; Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of the Ministry of Education, Chang'an University, Xi'an, China; Key Laboratory of Eco-hydrology and Water Security in Arid and Semi-arid Regions of Ministry of Water Resources, Chang'an University, Xi'an, China.

Waste management (New York, N.Y.)

|April 12, 2024

概括

垃圾填埋场的排放对区域空气质量产生重大影响,特定的挥发性有机化合物 (VOC) 导致臭氧和二次有机气溶形成. 了解这些影响对于管理垃圾填埋污染至关重要.

科学领域:

环境科学环境科学
大气化学大气化学
空气质量管理管理空气质量

背景情况:

城市固体废物 (MSW) 填埋是中国的主要处置方法.
垃圾填埋场释放挥发性有机化合物 (VOC),这些化合物会影响区域空气质量.
评估垃圾填埋场排放的非甲碳化合物 (NMHC) 和挥发性有机化合物的影响至关重要.

研究的目的:

分析垃圾填埋场周围的NMHC和VOC的空间分布和季节性变化.
从垃圾填埋场模拟NMHCs的区域分散.
估计来自垃圾填埋排放的臭氧 (O3) 和二次有机气溶 (SOA) 形成的潜力.

主要方法:

区域NMHC和VOC度的季节性采样 (116个物种).
对于NMHCs的CALPUFF大气分散建模.
烯等效度 (PEC),最大增量反应率 (MIR),微分气溶系数 (FAC) 和SOA潜力 (SOAP) 方法用于O3和SOA形成潜力的估计.

主要成果:

分别在垃圾填埋场表面和周围地区,p + m-xylen 和 halohydrocarbons 是主要的VOC.
乙对周围空气质量影响最大,来自垃圾填埋场.
在夏季,垃圾填埋场的NMHC排放对周边地区产生了重大影响;p + m-烯和乙是分别对O3和SOA形成的主要贡献者.

结论:

垃圾填埋场的排放,特别是特定的VOC如p + m-xylen和环碳水化合物,显著影响区域空气质量.
乙是一种主要的空气污染物,起源于垃圾填埋场,影响周围地区.
该研究量化了垃圾填埋场排放对臭氧和二次有机气溶形成的贡献,强调了对排放控制策略的需要.

关键词:

空气污染大气污染形成潜力的形成潜力在垃圾填埋场填埋垃圾.城市固体废物 (MSW)挥发性有机化合物 (VOC) 是一种挥发性有机化合物.

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