AI Article Synopsis
- A study was conducted in industrial parks and nearby residential areas to analyze the presence and impact of volatile organic compounds (VOCs) and odor-causing VOCs (O-VOCs) on odor pollution.
- Results revealed that VOC and O-VOC levels were significantly higher in industrial sectors like basic chemicals and pharmaceuticals compared to other sectors, indicating a higher risk of odor nuisance.
- Key O-VOCs such as acrolein and p-xylene were identified, highlighting the need for targeted control measures to reduce odor pollution from these sources, which were found to influence residential areas as well.
Article Abstract
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 （TVOCs） and （O-VOCs） in the residential living area of the industrial park were 102.57×10 and 72.33×10, respectively. （TVOCs） and （O-VOCs） were significantly higher in the industrial clusters of basic chemical industry and pharmaceutics than in the other industrial clusters, and the sum （OAV） and maximum （OAV） 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 （CD） 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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| http://dx.doi.org/10.13227/j.hjkx.202310118 | DOI Listing |
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