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Atmospheric depletion in this analysis is defined as the degradation of the atmosphere asset, as reflected by elevated pollution levels that undermine its role in supporting key ecosystem services, such as climate regulation and air purification. These services emerge from interactions between the atmosphere and ecosystems (e.g., carbon sequestration), rather than being provided by the atmosphere alone. Pollutants are classified into two main groups: Greenhouse gases (GHGs) and non-GHG pollutants (e.g., particulate matter).
GHG emissions have widespread impacts, influencing climate at regional and global scales, whereas non-GHG emissions primarily affect air quality in the immediate vicinity of their release. Absolute emission levels were used as direct indicators of atmospheric degradation. The datasets incorporated for this assessment include nitrogen oxides (NOx), Nitrogen Dioxide (NO2), fine particulate matter (PM10 and PM2.5) and ozone (O3).
Changes were analyzed for the period between 2016–2021.
Download the guidance documentation here for more information on the methodology, intended use cases and limitations.
Atmospheric depletion in this analysis is defined as the degradation of the atmosphere asset, as reflected by elevated pollution levels that undermine its role in supporting key ecosystem services, such as climate regulation and air purification. These services emerge from interactions between the atmosphere and ecosystems (e.g., carbon sequestration), rather than being provided by the atmosphere alone. Pollutants are classified into two main groups: Greenhouse gases (GHGs) and non-GHG pollutants (e.g., particulate matter).
GHG emissions have widespread impacts, influencing climate at regional and global scales, whereas non-GHG emissions primarily affect air quality in the immediate vicinity of their release. Absolute emission levels were used as direct indicators of atmospheric degradation. The datasets incorporated for this assessment include nitrogen oxides (NOx), Nitrogen Dioxide (NO2), fine particulate matter (PM10 and PM2.5) and ozone (O3).
Changes were analyzed for the period between 2016–2021.
Download the guidance documentation here for more information on the methodology, intended use cases and limitations.