中国乌鲁木齐公园空气污染物浓度的移动监测

IF 3.8 Q2 ENVIRONMENTAL SCIENCES Atmospheric Environment: X Pub Date : 2024-10-01 DOI:10.1016/j.aeaoa.2024.100297
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引用次数: 0

摘要

2023 年 7 月和 10 月,通过移动监测对乌鲁木齐市人民公园 PM2.5、PM10、O3 和 NO2 的浓度进行了监测,分析了城市公园污染物浓度的时空变化及其影响因素。结果表明,公园可有效降低 PM 和 NO2 浓度,提高 O3 浓度。公园内可吸入颗粒物浓度早晨高于中午。O3 和 NO2 浓度上午低于中午。公园内的浓度低于公园外。公园内污染物的缓解效果夏季好于秋季。公园内可吸入颗粒物浓度呈现高值聚集,PM2.5 和 PM10 在高值聚集区呈现相同的空间分布,且两者的污染在夏季呈现同源性。O3和NO2浓度在低值集群中呈聚集趋势。污染物受到当地环境的影响。PM2.5 浓度受风速和水域距离的影响较大,O3 浓度受气温和道路平均距离的影响较大。离道路越近,二氧化氮的浓度越高。应注意与高污染区 30-50 米缓冲带的景观设计。本研究可为公园规划设计提供参考。
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Mobile monitoring of air pollutant concentration in the park of Urumqi, China
The concentrations of PM2.5, PM10, O3 and NO2 in Urumqi People's Park were monitored by mobile monitoring in July and October 2023, and the temporal and spatial changes of pollutant concentrations in urban parks and their influencing factors were analyzed. The results show that park can effectively reduce PM and NO2 concentration, increase O3 concentration. PM concentration in the park was higher in the morning than the noon. O3 and NO2 concentration is lower in the morning than the noon. The concentration within the park was lower than that outside the park. The mitigative effect of pollutants in the park was better in summer than in autumn. The concentration of PM in the park showed a high value aggregation, and PM2.5 and PM10 showed the same spatial distribution in the high value cluster, and the pollution of both showed homology in summer. O3 and NO2 concentrations tend to accumulate at low value cluster. Pollutants are affected by the local environment. PM2.5 concentration is greatly affected by wind speed and distance from water, O3 concentration is greatly affected by temperature and average distance from road. The closer to the road, the higher the concentration of NO2. Attention should be paid to the landscape design of the buffer zone of 30–50 m with the high pollution area. This study can provide reference for park planning and design.
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来源期刊
Atmospheric Environment: X
Atmospheric Environment: X Environmental Science-Environmental Science (all)
CiteScore
8.00
自引率
0.00%
发文量
47
审稿时长
12 weeks
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