在Vhembe地区的非正式炉附近,使用低成本传感器量化环境PM2.5度
Tolulope Elizabeth Aniyikaiye1, Stuart J Piketh2, Joshua Nosa Edokpayi3
1Department of Geography and Environmental Science, University of Venda, Private Bag X5050, Thohoyandou, 0950, South Africa. lizaniyi@gmail.com.
Scientific reports
|December 17, 2023
概括
在Vhembe区非正式炉附近的颗粒物 (PM2.5) 污染在冬季的早上和晚上是最高的. 生物质燃烧和工业排放是关键来源,超过空气质量标准.
科学领域:
- 环境科学 环境科学
- 公共卫生 公共卫生
- 大气化学 大气化学
背景情况:
- 环境细颗粒物 (PM2.5) 暴露是一个全球性的健康问题,不成比例地影响低收入和中等收入国家.
- 在许多发展中国家,非正式的制工业是空气污染的重要来源.
- 了解PM2.5的时空分布对于有针对性的健康干预至关重要.
研究的目的:
- 在Vhembe区的非正式制工业社区调查PM2.5的时空分布.
- 评估PM2.5度的日间和季节性变化,并确定主要的排放来源.
- 评估是否符合南非国家环境空气质量标准 (NAAQS).
主要方法:
- 在炉附近的9个站点使用Dylos DC1700传感器持续监测PM2.5 (2021年3月至2022年2月).
- 对Dylos传感器与GRIMM环境尘埃监测器进行校准.
- 对日间和季节性模式,来源分配和NAAQS合规性的分析.
主要成果:
- 年度PM2.5度在22.6至36.2μgm-3.3之间.
- 峰值PM2.5水平发生在早上和晚上,冬季度最高.
- 所有站都超过了每日NAAQS限制,特别是在冬季,国内生物质燃烧,车辆,工业和建筑排放被确定为主要来源.
结论:
- 非正式的制有助于提高PM2.5水平,超过空气质量标准,特别是在冬季.
- 低成本的校准传感器可以有效地监测数据稀缺地区的空气质量.
- 这些发现支持制定有针对性的缓解策略,以减少Vhembe区的PM2.5健康风险.
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