公共汽车客空气中的污染物的实时演变特征和潜在反应
Wenlu Wang1, Xiaoting Liu2, Yang Xiao3
1College of Environment and Climate, Institute for Environmental and Climate Research, Jinan University, Guangzhou 511443, China; Guangzhou National Laboratory, Guangzhou 510005, China.
The Science of the total environment
|July 3, 2024
概括
通勤公共汽车内的空气质量显示,室外颗粒透率降低,但一氧化碳 (CO) 含量较高. 乘客的排放也导致室内空气污染物,造成潜在的长期健康风险.
科学领域:
- 环境健康 环境健康
- 空气质量科学 空气质量科学
- 公共交通 卫生 公共交通
背景情况:
- 了解公共交通中的室内空气质量至关重要,因为机动车的使用越来越多.
- 与通勤巴士内的空气污染物相关的健康风险仍未得到充分研究.
研究的目的:
- 为了评估城市通勤巴士的室内空气质量.
- 在运行期间监测颗粒物 (PM10,PM2.5) 和一氧化碳 (CO) 水平.
- 确定关键的室内空气污染物及其来源.
主要方法:
- 在通勤巴士内持续监测PM10,PM2.5和CO度.
- 在驾驶和停车期间分析污染物水平.
- 挥发性有机化合物 (VOC) 的识别及其来源.
主要成果:
- 公共汽车通风有效地减少了室外颗粒物和水蒸气透.
- 室内二氧化碳度明显高于室外水平,与车辆排放有关.
- 臭氧被确定为一个关键的氧化剂;检测到化物,碳化合物和来自乘客的VOCs (例如,异烯,6-MHO).
结论:
- 公共汽车通风对室外颗粒物是有效的,但对二氧化碳不是.
- 乘客产生的排放 (呼吸,皮肤) 在很大程度上导致室内VOCs.
- 需要对累积污染物影响进行进一步的研究,以改善公共交通空气质量和乘客健康.
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