World's most polluted countries & regions:

 World's most polluted countries & regions:

1. Bangladesh 🇧🇩 

2. Pakistan 🇵🇰 

3. India 🇮🇳 

4. Tajikistan 🇹🇯 

5. Burkina Faso 🇧🇫 

6. Iraq 🇮🇶 

7. UAE 🇦🇪 

8. Nepal 🇳🇵 

9. Egypt 🇪🇬 

10. DR of the Congo 🇨🇩 

~

11. Kuwait 🇰🇼 

12. Bahrain 🇧🇭 

14. Indonesia 🇮🇩 

19. China 🇨🇳 

22. Vietnam 🇻🇳 

27. Bosnia and Herzegovina 🇧🇦 

29. Ethiopia 🇪🇹 

30. Saudi Arabia 🇸🇦 

35. Nigeria 🇳🇬 

39. Mongolia 🇲🇳 

40. Kazakhstan 🇰🇿 

43. Serbia 🇷🇸 

44. Turkey 🇹🇷 

46. Mexico 🇲🇽 

50. South Korea 🇰🇷 

56. Israel 🇮🇱 

67. Romania 🇷🇴 

71. Italy 🇮🇹 

74. Poland 🇵🇱 

83. Brazil 🇧🇷 

87. Hungary 🇭🇺 

93. Canada 🇨🇦 

94. Russia 🇷🇺 

95. Spain 🇪🇸 

96. Japan 🇯🇵 

99. France 🇫🇷 

101. Argentina 🇦🇷 

102. USA 🇺🇸 

103. Germany 🇩🇪 

112. UK 🇬🇧 

119. Ireland 🇮🇪 

120. Norway 🇳🇴 

124. Sweden 🇸🇪 

132. Iceland 🇮🇸 

Note: Most polluted country and region ranking based on annual average PM2.5 concentration (μg/m³) in 2023