数字农科院2.0

Analysis of Odor and VOCs Pollution in Industrial Parks of Central Inner Mongolia Autonomous Region Based on Mobile Monitoring

文献类型： 外文期刊

作者： Chaofei Li; Yuanhao Jia; Qiu Yu; Cheryl Marie Cordeiro; Sha Li; Yanying Chen; Jinxing Liu; Heinz W. Siesler; Hongkan Wu; Run Zhao

关键词： mobile monitoring; odor units; odorous gases; volatile organic compounds; odor activity value; industrial emissions

期刊名称： ATMOSPHERIC ENVIRONMENT

ISSN： 1352-2310

年卷期： 2025 年

页码：

收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： Odor and volatile organic compound (VOC) pollution were characterized througha 15-month mobile monitoring campaign (January 2024-March 2025) in the TuoketuoIndustrial Park, Hohhot, Inner Mongolia, an area experiencing frequent odorcomplaints. A portable multi-sensor odor analyzer was deployed across ambient routesPriority Monitoring Zones (PZs), and 52 Priority Regulated Enterprises (PREs)covering a total distance of 4,072 km. The monitoring results indicated that mean odoiunit (OU, dimensionless) values were higher in PMZs at night (10.2) than during theday (8.3)and on ambient routes (7.08). Seasonal peaks occurred in summer (JulyAugust)and winter (December), corresponding to periods of low wind speeds andtemperature inversions, Spatial analysis identified recurrent odor hotspots along .Avenue (night-time anomaly probability 65%) and at the H Street-F Road intersection(48%). Ammonia (NHs; peak 10 mg m-), hydrogen sulfide HS; peak 7.85 mg m-)and trimethylamine (IMA)were the dominant odorants, associated mainly withbiopharmaceutical, coal-chemical, corn-processing and wastewater treatment activitiesAlthough total VOC (IVOC)concentrations were low (0.11-0.15 mg m-), odoractivity values (OAVs) highlighted TMA and methanethiol (M) as key contributorsto perceived odor impact. These findings support targeted night-time enforcement inhigh-risk corridors and optimization of waste-gas treatment, and motivate the adoptionof OAVbased odor management beyond mass-based TVOC metrics.

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