工业园区挥发性有机物及其致臭物质污染特征和来源解析 |
摘要点击 2205 全文点击 443 投稿时间:2023-10-17 修订日期:2023-12-15 |
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中文关键词 致臭挥发性有机物(O-VOCs) 污染特征 气味活性 来源解析 工业园区 |
英文关键词 odor-causing volatile organic compounds(O-VOCs) pollution characteristics odor activity source apportionment industrial parks |
作者 | 单位 | E-mail | 李陵 | 重庆市生态环境科学研究院城市大气环境综合观测与污染防控重庆市重点实验室, 重庆 401336 中国环境科学研究院西南分院, 重庆 401336 | lilingbryant@163.com | 胡伟 | 重庆市生态环境科学研究院城市大气环境综合观测与污染防控重庆市重点实验室, 重庆 401336 中国环境科学研究院西南分院, 重庆 401336 | | 吕平江 | 重庆市生态环境科学研究院城市大气环境综合观测与污染防控重庆市重点实验室, 重庆 401336 中国环境科学研究院西南分院, 重庆 401336 | | 张丹 | 重庆市生态环境科学研究院城市大气环境综合观测与污染防控重庆市重点实验室, 重庆 401336 中国环境科学研究院西南分院, 重庆 401336 | zhang_dan_8888@126.com | 徐芹 | 重庆市生态环境科学研究院城市大气环境综合观测与污染防控重庆市重点实验室, 重庆 401336 中国环境科学研究院西南分院, 重庆 401336 | | 袁睿 | 重庆市生态环境科学研究院城市大气环境综合观测与污染防控重庆市重点实验室, 重庆 401336 中国环境科学研究院西南分院, 重庆 401336 | | 江雪 | 重庆市生态环境科学研究院城市大气环境综合观测与污染防控重庆市重点实验室, 重庆 401336 中国环境科学研究院西南分院, 重庆 401336 | | 李振亮 | 重庆市生态环境科学研究院城市大气环境综合观测与污染防控重庆市重点实验室, 重庆 401336 中国环境科学研究院西南分院, 重庆 401336 | |
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中文摘要 |
为改善工业园区挥发性有机物(VOCs)恶臭污染扰民现象,促进大气VOCs及其致臭物质的协同控制,基于对工业园区居民生活区和5个不同类型产业片区的大气VOCs的外场观测,分析居民生活区和各产业片区大气VOCs及其致臭挥发性有机物(O-VOCs)污染特征,评估工业园区O-VOCs气味活性特征,识别关键的致臭物种及其主要来源. 结果表明,工业园区居民生活区大气φ(TVOCs)和φ(O-VOCs)的均值分别为102.57×10-9和72.33×10-9,产业片区中基础化工和医药制造片区TVOCs和O-VOCs体积分数显著高于其他片区,并且2个产业片区气味活性值的总和(OAVsum)和最大值(OAVmax)相对较高,存在潜在的异味扰民风险. 总体上,居民生活区和5个产业片区中异味强度较高的O-VOCs物种类似,丙烯醛、 对-二乙基苯、 对-二甲苯和1,3-二乙基苯等O-VOCs物种的有效管控对于减轻或消除有机异味污染至关重要. 居民生活区O-VOCs的来源解析结果表明,居民生活区O-VOCs的来源主要受到天然气化工和医药制造片区的影响,居民生活区与天然气化工和医药制造片区之间O-VOCs化学成分谱的分歧系数(CDO-VOCs)分别为0.31和0.38. 主成分分析(PCA)同样印证了这一结果,居民生活区O-VOCs主要来源于天然气化工和医药制造片区,其次为钢铁制造和汽车制造片区,基础化工片区贡献最低. |
英文摘要 |
To improve the phenomenon of the volatile organic compounds (VOCs) odor pollution nuisance in industrial parks and to promote the synergistic control of atmospheric VOCs and their odor-causing substances, based on the field observation of atmospheric VOCs in residential living areas and five different types of industrial clusters in industrial parks, we analyzed the pollution characteristics of atmospheric VOCs and their odor-causing volatile organic compounds (O-VOCs) in the residential living areas and each industrial cluster, evaluated the characteristics of the odor activity of the O-VOCs in the industrial parks, and identified the key odor-causing species and their main sources. The results showed that the mean values of atmospheric φ (TVOCs) and φ(O-VOCs) in the residential living area of the industrial park were 102.57×10-9 and 72.33×10-9, respectively. φ(TVOCs) and φ(O-VOCs) were significantly higher in the industrial clusters of basic chemical industry and pharmaceutics than in the other industrial clusters, and the sum (OAVsum) and maximum (OAVmax) of the odor activity values of these two clusters were relatively high, with a potential risk of odor nuisance. Overall, the O-VOCs species with higher odor intensity were similar in residential living areas and the five industrial clusters, and effective control of O-VOCs species such as acrolein, p-diethylbenzene, p-xylene, and 1,3-diethylbenzene is essential to mitigate or eliminate organic odor pollution. The results of the source apportionment of O-VOCs in the residential area showed that the sources of O-VOCs in the residential area were mainly influenced by natural gas chemical and pharmaceutics, and the coefficients of divergence (CDO-VOCs) between the O-VOC chemical profiles from residential areas and those from natural gas chemical and pharmaceutics were 0.31 and 0.38, respectively. Principal component analysis (PCA) also confirmed this result, with residential O-VOCs mainly originating from natural gas chemicals and pharmaceutics, followed by iron and steel manufacturing and automobile manufacturing, with the lowest contribution from the basic chemicals. |
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