气候变化领域集成服务门户(CCPortal): Evaluation of the WRF and CHIMERE models for the simulation of PM2.5 in large East African urban conurbations

CCPortal

DOI	10.5194/acp-22-10677-2022
	Evaluation of the WRF and CHIMERE models for the simulation of PM2.5 in large East African urban conurbations
	Mazzeo, Andrea; Burrow, Michael; Quinn, Andrew; Marais, Eloise A.; Singh, Ajit; Ng'ang'a, David; Gatari, Michael J.; Pope, Francis D.
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	10677
结束页码	10701
卷号	22 期号:16 页码:25
英文摘要	Urban conurbations of East Africa are affected by harmful levels of air pollution. The paucity of local air quality networks and the absence of the capacity to forecast air quality make difficult to quantify the real level of air pollution in this area. The CHIMERE chemistry transport model has been used along with the Weather Research and Forecasting (WRF) meteorological model to run high-spatial-resolution (2 x 2km) simulations of hourly concentrations of particulate matter with an aerodynamic diameter smaller than 2.5 mu m (PM2.5) for three East African urban conurbations: Addis Ababa in Ethiopia, Nairobi in Kenya, and Kampala in Uganda. Two existing emission inventories were combined to test the performance of CHIMERE as an air quality model for a target monthly period in 2017, and the results were compared against observed data from urban, roadside, and rural sites. The results show that the model is able to reproduce hourly and daily temporal variabilities in aerosol concentrations that are close to observed values from urban, roadside, and rural environments. CHIMERE's performance as a tool for managing air quality was also assessed. The analysis demonstrated that, despite the absence of high-resolution data and up-to-date biogenic and anthropogenic emissions, the model was able to reproduce 66 %-99 % of the daily PM2.5 exceedances above the World Health Organization (WHO) 24 h mean PM2.5 guideline (25 mu g m(-3)) in the three cities. An analysis of the 24 h average PM2.5 levels was also carried out for 17 constituencies in the vicinity of Nairobi. This showed that 47 % of the constituencies in the area exhibited a poor Air Quality Index for PM2.5 that was in the unhealthy category for human health, thereby exposing between 10 000 and 30 000 people per square kilometre to harmful levels of air contamination.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000843166300001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273329
作者单位	University of Birmingham; University of Birmingham; University of London; University College London; University of Nairobi
推荐引用方式 GB/T 7714	Mazzeo, Andrea,Burrow, Michael,Quinn, Andrew,et al. Evaluation of the WRF and CHIMERE models for the simulation of PM2.5 in large East African urban conurbations[J],2022,22(16):25.
APA	Mazzeo, Andrea.,Burrow, Michael.,Quinn, Andrew.,Marais, Eloise A..,Singh, Ajit.,...&Pope, Francis D..(2022).Evaluation of the WRF and CHIMERE models for the simulation of PM2.5 in large East African urban conurbations.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(16),25.
MLA	Mazzeo, Andrea,et al."Evaluation of the WRF and CHIMERE models for the simulation of PM2.5 in large East African urban conurbations".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.16(2022):25.