Kraków air has improved in recent years, but it still regularly records some of the worst pollution in the world.

Kraków air has improved in recent years, but it still regularly records some of the worst pollution in the world.
The average amount of harmful air-borne particles was within safe limits in all monitored places for the first time since 2015.
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The government hopes to replace half of the one million coal-fired boilers still in use in buildings containing multiple dwellings by 2030.
The ranking features towns and villages but no large cities.
The government says the move is necessary due to the “current exceptional situation” caused by Russia’s war in Ukraine, which has seen coal prices surge.
A ban on burning coal to heat homes will be introduced in Warsaw next year and in surrounding districts in 2028.
With a budget of 103 billion zloty (€22.5 billion), the programme is supposed to be the largest of its kind in Europe
The shockwave generator pushes toxic particles higher up into the air.
Kraków yesterday topped a global air pollution ranking, coming ahead of Lahore and New Delhi.
But the judge noted that the ruling does not automatically open the way for anyone in Poland to demand compensation.
The problem is estimated to cause 50,000 premature deaths in Poland annually.
Higher income thresholds will also allow more people to benefit from thermo-modernisation subsidies.
Orzesze had an annual mean PM2.5 level four times the WHO target.
Maria Wilczek
But economic and bureaucratic obstacles stand in the way of tackling the smog.