Ultra-fine resolution (20m×20m) air quality data in city of Hong Kong

Dataset description

Description: Annual average concentrations of NO2, O3, PM2.5 and PM10 with grid cells of 20m×20m over the Hong Kong domain for the year of 2019. Units are in µg/m3.

Format: NetCDF

Size: The dataset contains 6 variables, including latitude, longitude, and grid concentrations for NO2, O3, PM2.5 and PM10. Each variable contains 6342500 data points (2150 rows ×2950 columns). The below maps display the spatial map of concentrations for the four pollutants.

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Data Download


NO2
O3

PM10
PM2.5

Acknowledgement:

The development of the ultra-fine resolution pollution data was supported by the PRAISE-HK project (http://praise.ust.hk/).

Reference:

Che, W.W., Zhang Y.M., Lin C. Q., Fung, Y.H., Fung, J.C.H., Lau, A.K.H. Impacts of pollution heterogeneity on population exposure in dense urban areas using ultra-fine resolution air quality data. Journal of Environmental Sciences

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