印度大都会城市不同城市热点的空气质量及其对环境的影响
Diya M1, Sudheer Kumar Kuppili2, S M Shiva Nagendra2
1Department of Civil Engineering, Indian Institute of Technology (IIT) Madras, Chennai, India, 600036. madayildiya@gmail.com.
Environmental monitoring and assessment
|October 25, 2024
概括
这项研究分析了印度奈的空气污染物度,发现颗粒物 (PM10,PM2.5) 和一氧化碳 (CO) 在工业和交通场所最高. 工业被确定为主要的污染源,特别是在特定的风力条件下.
科学领域:
- 环境科学 环境科学
- 大气化学 大气化学
- 公共卫生 公共卫生
背景情况:
- 空气质量监测对于城市健康和环境管理至关重要.
- 印度主要大都市奈面临着工业和交通排放造成的严重空气污染挑战.
- 了解污染物动态对于有效的减缓战略至关重要.
研究的目的:
- 调查奈的主要空气污染物 (PM10,PM2.5,SO2,NO2,CO) 的时间变化 (年度,季节性,日间).
- 在各种热点地点 (工业,交通,商业,港口,住宅) 识别和区分污染源.
- 分析气象条件对污染物度和来源归因的影响.
主要方法:
- 五种污染物 (PM10,PM2.5,SO2,NO2,CO) 的每小时空气质量数据在2022年从奈的五个不同的地点收集.
- 对时间变化 (年度,季节性,日间) 和污染物分布模式 (lognormal) 的统计分析.
- 条件概率函数 (CPF) 和极地图的应用,与气象数据集成,用于源识别.
主要成果:
- 颗粒物 (PM10,PM2.5) 和一氧化碳 (CO) 是主要的污染物,在工业和交通场所观察到的度最高.
- 季节性变化显示PM和CO的冬季峰值,NO2和SO2的夏季峰值,特别是在港口附近.
- 工业活动被确定为PM10,SO2和NO2的重要本地来源,特别是在特定的风力条件下,交通影响日间模式.
结论:
- 该研究提供了对奈污染物动态,排放源和气象因素的复杂相互作用的关键见解.
- 调查结果强调了工业和交通排放对城市空气污染的重大贡献.
- 这项研究支持该地区制定有针对性的空气污染控制和缓解战略.
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