Comparison of nitrogen dioxide emissions in Africa between March/April 2019 and 2020
Comparison of nitrogen dioxide emissions in Africa between March/April 2019 and 2020
The reduction of nitrogen dioxide in the troposphere above South Africa, in the region around Johannesburg, is more than 75 percent. The above-mentioned weather-related fluctuations were reduced by forming monthly averages. An adjustment of the weather influence by the combination of long-term satellite observations, in-situ measurements and model calculations described in the text was not carried out here.
