10 most polluted countries of the world as per IQAir

With an average PM2.5 concentration of 79.9 micrograms per cubic metre, Bangladesh was the most polluted country of 2023.

With an average PM2.5 concentration of 73.7 micrograms per cubic metre, Pakistan is second on the list.

With an average PM2.5 concentration of 73.7 micrograms per cubic metre, Pakistan is second on the list.

With an average PM2.5 concentration of 49 micrograms per cubic metre, Tajikistan is fourth on the list.

With an average PM2.5 concentration of 46.6 micrograms per cubic metre, Burkina Faso is fifth on the list.

With an average PM2.5 concentration of 43.8 micrograms per cubic metre, Iraq is sixth on the list.

With an average PM2.5 concentration of 43 micrograms per cubic metre, UAE is seventh on the list.

With an average PM2.5 concentration of 42.4 micrograms per cubic metre, Nepal is eighth on the list.

With an average PM2.5 concentration of 42.4 micrograms per cubic metre, Egypt is ninth on the list.