Top 10 clean country in the world

Air pollution is a serious global problem that affects many countries, but there are also some countries that have relatively low levels of air pollution. According to the data from the World Health Organization (WHO), here is a list of the top 10 cleanest countries in the world in terms of fine particulate matter (PM2.5) levels in 2019:

1. Finland : Finland has relatively low levels of air pollution, thanks to its clean energy sources and strict regulations on industrial emissions. The country's abundant forests and clean waterways also help to reduce air pollution and provide a healthy environment.


2. Iceland : Iceland has some of the lowest air pollution levels in the world. This is due to the country's geography and natural resources, including its clean energy sources such as geothermal and hydropower, as well as its sparsely populated nature, and strong regulation on industrial emissions.


3. Estonia : Estonia has relatively low levels of air pollution, thanks to its focus on clean energy sources, such as biomass and wind power, as well as strict regulations on industrial emissions and transportation. The country's small population and low density also help to keep air pollution levels low.


4. New Zealand 


5. Latvia 


6. Lithuania 


7. Sweden 


8. Canada 


9. Australia 


10. United States 

Please note that this list is based on PM2.5 levels, which are a measure of the amount of tiny particulate matter suspended in the air. These particulates can come from a variety of sources, including industrial emissions, vehicle exhaust, and burning of fossil fuels. Other forms of pollution such as water pollution and plastic pollution also affect many countries. It's also worth noting that this data is from 2019, and it's important to check for the most recent data to get a current picture of the situation. Also, it's worth noting that even in the countries that are considered to have low levels of air pollution, there are still areas where air quality needs to be improved.