基于抽样调查的北京市干洗行业VOCs排放清单编制 |
A Study on the Compilation of Volatile Organic Compound Emission Inventory for the Dry Cleaning Industry in Beijing Based on Sampling Survey |
投稿时间:2023-05-15 修订日期:2024-07-01 |
DOI:10.19316/j.issn.1002-6002.2024.06.06 |
中文关键词: VOCs 干洗 排放量 时空分布 化学反应活性 |
英文关键词:VOCs dry cleaning emissions temporal and space distribution chemical reaction activity |
基金项目:北京市科技计划课题(Z191100009119001) |
作者 | 单位 | 崔彤 | 北京市生态环境监测中心, 北京 100048 大气颗粒物监测技术北京市重点实验室, 北京 100048 | 杨妍妍* | 北京市生态环境监测中心, 北京 100048 大气颗粒物监测技术北京市重点实验室, 北京 100048 | 沈秀娥 | 北京市生态环境监测中心, 北京 100048 大气颗粒物监测技术北京市重点实验室, 北京 100048 | 粟京平 | 北京市生态环境监测中心, 北京 100048 大气颗粒物监测技术北京市重点实验室, 北京 100048 | 何明 | 北京市生态环境监测中心, 北京 100048 大气颗粒物监测技术北京市重点实验室, 北京 100048 | 陈赛赛 | 北京工业大学环境科学与工程学院, 北京 100124 | 魏巍 | 北京工业大学环境科学与工程学院, 北京 100124 |
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通讯作者:杨妍妍* 北京市生态环境监测中心, 北京 100048;大气颗粒物监测技术北京市重点实验室, 北京 100048 |
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中文摘要: |
干洗行业是典型的城市生活源挥发性有机物(VOCs)排放行业。抽样调查了北京市360家干洗店,研究编制全市干洗店VOCs排放清单,评估行业VOCs化学反应活性水平。调查结果显示:北京市干洗店使用四氯乙烯干洗机的占比为87%,使用石油干洗机的占比为13%,其中70%的设备安装了废气处理装置。经测算,2019年北京市干洗店VOCs排放量为430.5 t,其中城六区和城市发展新区排放量较大(朝阳区排放量为57.4 t);城市核心区排放强度为朝阳区的3倍,为远郊区的数十倍;排放时间集中在11月至次年4月,占全年总排放量的70%。相较其他典型行业,干洗行业的VOCs化学反应活性处于较低水平。鉴于石油干洗机贡献了该行业81.9%和99.4%的臭氧和二次气溶胶生成潜势,行业治理可考虑使用四氯乙烯干洗机替代石油干洗机,并加强废气净化装置的安装和运行监管。 |
英文摘要: |
Dry cleaning industry is a typical emission industry of volatile organic compounds(VOCs) from urban living sources. A sample survey of 360 laundries in Beijing was conducted to compile the VOCs emission inventory and evaluate the VOCs chemical reaction activity level of dry cleaning industry. The survey results showed that 87% of the cleaners were tetrachloroethylene dry washers,13% were petroleum solvent dry cleaners, and 70% dry washers were equipped with waste gas treatment devices, the average amount of dry cleaning solvent used by each dry cleaner in 2019 was 90 kg. It was calculated that the VOCs emission of dry cleaners in Beijing was 430. 5 tons in 2019,with obvious spatial and temporal distribution characteristics. Among them,the emission of new urban districts was relatively large, with 57. 4 tons from Chaoyang District. The emission intensity in the core district of the city was the highest, about 3 times that in Chaoyang District and dozens of times of outer suburbs. 70% of the emissions were concentrated from November to April of the next year. Compared with other typical industries,the chemical activity of VOCs emission from dry cleaning industry was relatively low. In view of the fact that petroleum solvent dry cleaners contributed 81. 9% and 99. 4% of the ozone formation potential (OFP) and secondary organic aerosol (SOA) of the industry, Using tetrachloroethylene dry cleaning washers instead of petroleum solvent dry cleaning washers,and strengthening the installation and operation supervision of waste gas purification devices were considered to be the management of dry cleaning industry. |
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