Urgent Mazovia Alert: 180 µg Ozone Risk

28 June 2026 Poland Radar 0 Comments

Ground-level ozone predicted to reach 180 µg/m3 across Mazovia today. Read health advice and what expats should do.

Urgent: The Mazovian Voivode issued a warning for the whole region today. It predicts a rise in ground-level ozone to 180 micrograms per cubic metre between 11:00 and 19:00.

Table of Contents

What is ground-level ozone and why now?

Ozone near the ground differs from the protective layer high above. Consequently, residents call it “bad ozone.” Moreover, it forms when nitrogen oxides from car exhaust and industry react with sunlight. Therefore, hot and sunny weather on Mazovia fuels its formation. In addition, high traffic and clear skies push levels higher in some counties. Thus, Legionowo already recorded values above the 180 µg threshold today.

Legal thresholds and what 180 µg means

Poland sets two warning levels for ozone. Consequently, 180 µg/m3 triggers the official information level. However, authorities activate an alarm only at 240 µg/m3. Moreover, EU air quality guidance sets 120 µg as an 8-hour limit. Therefore, current forecasts show clearly elevated pollution. In addition, the World Health Organization recommends an even lower 8-hour limit of 100 µg.

Health effects and who should act

High ozone irritates airways and eyes. Consequently, people may feel throat scratching and shortness of breath. Moreover, it can worsen asthma and COPD. Therefore, children, older adults, and those with lung disease should avoid outdoor exertion. In addition, prolonged exposure raises risks for heart disease and lung function decline. Thus, seek medical help if symptoms persist.

Practical advice for daily life

If you planned a run today, move it after 19:00. Moreover, save long walks for evening hours. However, short errands do not pose a large risk. Therefore, avoid heavy exertion near busy roads. In addition, ventilate flats early in the morning or after sunset. Also, ordinary cloth masks do not stop this gas. Consequently, the best protection remains reducing time outdoors.

💡 GOOD TO KNOW: In Poland, public healthcare runs under the National Health Fund (NFZ). Also, the social insurance institution is ZUS. If you hold a PESEL number you access many services faster. Consequently, expats should carry EHIC or private insurance when seeking care. Moreover, call 112 in emergencies. In addition, local authorities often publish alerts on municipal websites and social media. Therefore, register for municipal alert systems if you can.

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