A Multi-Pollutant Emissions Inventory for Air Pollution Modeling and Supporting Information for Addis Ababa

This paper is under review. For additional information or queries, send email to sguttikunda@urbanemissions.info **** ABSTRACT: Ground measurements and satellite observations over Addis Ababa airshed show a deteriorating trend of air pollution, especially for PM2.5 (all particulate matter under 2.5um). In this paper, we present a review of available monitoring data; a model-ready multi-pollutant (PM10, PM2.5, SO2, NOx, CO, non-methane VOCs, and CO2) emissions inventory at 0.01º resolution for the designated airshed; a heatmap of PM2.5 concentrations and an estimate of source contributions constructed using WRF-CAMx chemical transport modelling system; and a discussion on proposed actions towards establishing an air quality management plan for the city. Emissions from road transport; residential and commercial cooking; resuspended dust on roads and from construction activities; residential and industrial heating; lighting; open waste burning; and other industrial activities contributed the most to ambient PM2.5 pollution. Particularly, vehicle exhaust is estimated to contribute up to 29% of total PM2.5, followed by biomass combustion in the residential and industrial sectors. File included in this dataset: Composite presentation of supporting information and analysis resultsFile: Report-Addis-Data-Summary.pptxThis presentation includes summary images of monitoring data the GIS fields google earth scans  annual and monthly emissions annual and monthly PM2.5 concentrations annual and monthly source apportionment Ambient monitoring dataFile: AddisAbaba_AllEmbassy_Data.xlsx (summary of data till May2024)File: monitoring_addisair_cleaned.xlsx (summary of sensor data) Gridded emissions inventoryFile: addis_gridded_emissions.rarFormat: ix,iy,midlong,midlat,FPRM,CPRM,BC,OC,NO,NO2,CO,SO2Units: tons/grid/yearPM2.5 emissions = FPRM + BC + OCPM10 emissions = FRPM + BC + OC + CPRMmidlong and midlat are midpoints of grids - see gis_addis_grids.rar TROPOMI UVAI and MODIS AODData files extracted from google earth engine as TIF and CSV, for the designated airshedFile: ADDISABABA_yearly_tifs.zip Meteorlogical data summary for the airshed, extracted from the WRF sumulationsFile: meteo_addis.houravg_summary.csv Reference reportsFile: Report-C40-2016-Addis-Ababa-GHG-Emssions.pdfFile: Report-CSE-Ethiopia-Urban-AQM-Guidance.pdfFile: Report-WB-Ethiopia-motorization-management.pdfFile: Report-UNEP-Addis-AQM-Plan-Draft.pdf GIS filesFile: gis_addis_grids.rar (shapefile and KML file for the airshed grid)File: gis_addis_osm_roads.rar (shapefiles extracted from openstreetmaps)File: pop_extracts_4selection_domain.xlsm (gridded population data, with macros can be used to extract population totals around a monitoring station)File: gis_addis_multiple_layers.rar (as KML files - districts, townships, main_roads, water_bodies, quarries, landfill, industrial_areas)