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首页> 外文期刊>International Journal of Environmental Research and Public Health >The State of Ambient Air Quality in Two Ugandan Cities: A Pilot Cross-Sectional Spatial Assessment
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The State of Ambient Air Quality in Two Ugandan Cities: A Pilot Cross-Sectional Spatial Assessment

机译：乌干达两个城市的环境空气质量状况：跨部门空间先导评估

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Air pollution is one of the leading global public health risks but its magnitude in many developing countries’ cities is not known. We aimed to measure the concentration of particulate matter with aerodynamic diameter <2.5 μm (PM2.5), nitrogen dioxide (NO2), sulfur dioxide (SO2), and ozone (O3) pollutants in two Ugandan cities (Kampala and Jinja). PM2.5, O3, temperature and humidity were measured with real-time monitors, while NO2 and SO2 were measured with diffusion tubes. We found that the mean concentrations of the air pollutants PM2.5, NO2, SO2 and O3 were 132.1 μg/m3, 24.9 μg/m3, 3.7 μg/m3 and 11.4 μg/m3, respectively. The mean PM2.5 concentration is 5.3 times the World Health Organization (WHO) cut-off limits while the NO2, SO2 and O3 concentrations are below WHO cut-off limits. PM2.5 levels were higher in Kampala than in Jinja (138.6 μg/m3 vs. 99.3 μg/m3) and at industrial than residential sites (152.6 μg/m3 vs. 120.5 μg/m3) but residential sites with unpaved roads also had high PM2.5 concentrations (152.6 μg/m3). In conclusion, air pollutant concentrations in Kampala and Jinja in Uganda are dangerously high. Long-term studies are needed to characterize air pollution levels during all seasons, to assess related public health impacts, and explore mitigation approaches.
机译：空气污染是全球主要的公共卫生风险之一，但在许多发展中国家的城市中，其污染程度尚不清楚。我们旨在测量两个乌干达城市（坎帕拉和金贾）的空气动力学直径<2.5μm（PM2.5），二氧化氮（NO2），二氧化硫（SO2）和臭氧（O3）污染物的浓度。 PM2.5，O3，温度和湿度通过实时监控器测量，而NO2和SO2通过扩散管测量。我们发现，大气污染物PM2.5，NO2，SO2和O3的平均浓度分别为132.1μg/ m3、24.9μg/ m3、3.7μg/ m3和11.4μg/ m3。 PM2.5的平均浓度是世界卫生组织（WHO）临界值的5.3倍，而NO2，SO2和O3的浓度低于WHO临界值。坎帕拉的PM2.5含量高于金贾（138.6μg/ m3比99.3μg/ m3）和工业用地高于居民区（152.6μg/ m3比120.5μg/ m3），但道路未铺设的居民区的PM2.5含量也较高PM2.5浓度（152.6μg/ m3）。总之，乌干达坎帕拉和金贾的空气污染物浓度非常高。需要进行长期研究以表征所有季节的空气污染水平，评估相关的公共健康影响，并探索缓解方法。

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