India has recently made it to the list of the most polluted countries in the world and is currently in first position. Cities like Delhi and Ghaziabad have an AQI of 269, which is considered ‘very unhealthy’ 

Serbia, in second position, has an AQI of 172, putting it in the ‘unhealthy’ category. The pollution is caused by burning coal for energy, industrial emissions, and traffic

Turkey holds third place with an AQI of 160, marking the air quality as ‘unhealthy.’ Pollution is mainly caused by industrial emissions, coal burning for energy, and traffic congestion in urban centers

Mexico ranks fourth with an AQI of 160. Major contributors to pollution are industrial emissions, vehicle exhaust, and agricultural practices

Macedonia is ranked fifth with an AQI of 159, which falls under the ‘unhealthy’ category. The major causes of pollution in Macedonia include industrial emissions, coal combustion, and vehicle exhaust

Bahrain, in sixth place, has an AQI of 156, falling in the ‘unhealthy’ zone. Pollution in Bahrain is largely caused by industrial emissions, vehicle exhaust, and dust from desert winds

Uganda is in seventh position. The pollution is hazardous, especially in cities like Kampala, and has an AQI of 151, which is considered ‘unhealthy’