Variations of PM2.5, PM10 mass concentration and health assessment in Islamabad, Pakistan

2018 Asia Conference on Energy and Environment Engineering

能源学;生态环境科学

Mehmood, Tariq^1 ; Tianle, Z.^1 ; Ahmad, I.^2 ; Li, X.^1 ; Shen, F.^1 ; Akram, W.^2 ; Dong, L.^1

School of Space and Environment, Beihang University, Beijing

100191, China^1

National Center for Physics, Islamabad, Pakistan^2

关键词: Air quality indices;    Estimated lifetime;    Health assessments;    Islamabad , Pakistan;    Mass concentration;    Mean concentrations;    Particulate Matter;    Pm10 mass concentrations;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/133/1/012031/pdf
DOI  :  10.1088/1755-1315/133/1/012031

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Sparse information appears in lack of awareness among the people regarding the linkage between particulate matter (PM) and mortality in Pakistan. The current study is aimed to investigate the seasonal mass concentration level of PM2.5 and PM10 in ambient air of Islamabad to assess the health risk of PM pollution. The sampling was carried out with two parallel medium volume air samplers on Whatman 47 mm quartz filter at a flow rate of 100L/min. Mass concentration was obtained by gravimetric analysis. A noticeable seasonal change in PM10 and PM2.5 mass concentration was observed. In case of PM2.5, the winter was a most polluted and spring was the cleanest season of 2017 in Islamabad with 69.97 and 40.44 μgm-3 mean concentration. Contrary, highest (152.42 μgm-3) and lowest (74.90 μgm-3) PM10 mass concentration was observed in autumn and summer respectively. Air Quality index level for PM2.5 and PM10 was remained moderated to unhealthy and good to sensitive respectively. Regarding health risk assessment, using national data for mortality rates, the excess mortality due to PM2.5 and PM10 exposure has been calculated and amounts to over 198 and 98 deaths annually for Islamabad. Comparatively estimated lifetime risk for PM2.5 (1.16×10-6) was observed higher than PM10 (7.32×10-8).