https://scienceinpoland.pl/en/news/news%2C109008%2Cpoland-still-among-europes-most-polluted-particulate-matter-rises-expert-warns https://scienceinpoland.pl/en/

https://scienceinpoland.pl/en/news/news%2C109008%2Cpoland-still-among-europes-most-polluted-particulate-matter-rises-expert-warns https://scienceinpoland.pl/en/news/news%2C109008%2Cpoland-st... > Guła said the biggest contributors to air pollution remain residential buildings heated with coal and wood, often in outdated furnaces. Are donuts more environmentally-friendly?