Urban growth air pollution, CO, NO2 and SO2 emission and COVID-19 in Kano Metropolis Nigeria

The study employed three primary pollutants CO, NO2 and SO2 within kano metropolis, Nigeria and volumetric traffic count conducted with the aid of gas sensing device by Crown Cone and GIS and RS used. CO sensed during covid-19 cut downs by 60.31.%, this is because of reduction in wood-fuel usage for domestic and light industrial purposes. Taludu Sulfur Dioxides (SO2) emission record is 0.72 Ppm, Sharada junction depicts Nitrogen Dioxide (NO2) record as 0.82 Ppm, while Taludu junction shows 19.0 Ppm carbon dioxide (CO). Taludu Junction is more likely to have air pollution effects in the future because, it is located between very densely ancient Kano city and densely industrial land uses. In addition, the primary pollutant emissions are shown to be very high within 2:00PM and 4:00PM. It is the volumetric traffic movement and it is the closing period for offices and some businesses and industries. It is also the period of shopping for domestic purposes. Covid-19 in Kano metropolis is more connected to housing and population densities, overcrowding, insufficient ventilations and lighting in highly overcrowded areas which affects environmental quality. There is strong need for urban growth framework development in KNMA to guide in mitigating environmental challenges