Air quality is measured on the fine particulate matter (PM2.5) scale. PM2.5 are tiny particles in the air that are harmful to health and reduce visibility and cause the air to appear hazy when levels are elevated.
A high PM2.5 level indicates very poor air quality. A very low PM2.5 level denotes clean air.
Comoro Islands has an air quality value of PM2.5, placing it 157th of 124 in the global listing of countries with worst air quality.
Comoro Islands's data is highlighted in the table below, use the filter and sort order options to allow easy comparison with other countries.
Data source: World Health Organization, Geneva