Determining the quality of ambient air

This is sampling data used by gravimetric methods to sample ambient PM2.5 at the School of Health Systems and Public Health. The mean average PM2.5 (23 µg/m3) and eleven PM2.5 bound trace elements were analysed for 34 months. Air pollutants were analysed by receptor source apportionment methods and HYSPLIT models. Sources included resuspended matrix, mining, exhaust, industry, biomass burning and vehicular emissions. Health studies included a health risk assessment for PM2.5 and eight trace elements and a case-crossover epidemiology study between respiratory hospital admissions and PM2.5, nine trace elements and sources of PM2.5. It was concluded that the population is at risk due to exposure to air pollutants in Pretoria and air quality policies should endeavour to be in line with the World Health Organization (WHO) guidelines.

本数据集为重力法在健康系统与公共卫生学院用于采集环境PM2.5的样本数据。对连续34个月的PM2.5平均浓度（23 µg/m3）及其所结合的十一种微量元素进行了分析。通过受体源解析方法和HYSPLIT模型对空气污染物进行了分析。数据来源包括重新悬浮的基质、采矿、排放、工业、生物质燃烧以及机动车排放。健康研究包括对PM2.5及其八种微量元素的健康风险评估，以及呼吸系统住院病例与PM2.5、九种微量元素和PM2.5来源之间的病例交叉流行病学调查。研究结论认为，由于暴露于比提陀的空气污染物，人群处于风险之中，空气质量政策应努力与世界卫生组织（WHO）的指南保持一致。