Smog conditions persist in Moravian-Silesian region despite gradual improvement

Air quality in the Moravian-Silesian region showed slight improvement on Sunday, but a smog alert remains in force. Levels of harmful airborne particles are still above safe daily limits at all monitoring stations, according to the Czech Hydrometeorological Institute.

A smog situation was declared late Thursday night for Ostrava, Karviná and parts of the Frýdek-Místek agglomeration, and was extended to the entire region on Friday.

Meteorologists advise people to limit strenuous outdoor activity, especially those with respiratory or heart disease, older adults and young children. Residents are encouraged to use public transport and approved fuels for heating.

The Moravian-Silesian region has the worst air quality in Czechia and is among the most polluted areas in Europe, with smog most common in autumn and winter.