According to the World Health Organisation (WHO), air pollution is now a greater threat to health than Ebola or HIV and 80% of all urban areas have air pollution levels above what is considered healthy.
The most air polluted countries in the world have higher rates of particulate matter* in the air we breathe. The interactive map below shows the median rate of particulate matter across 184 countries - how does your country compare?
Levels of particulate matter
= Top 10 most polluted countries (Hover for more info)