Ukrainian civic network. Different industrial cities - similar issues
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Ground-level ozone

Molecular formula: O3

Characteristics: This odourless gas usually occurs in the atmosphere, where it protects the Earth against ultraviolet radiation. It is dangerous near the Earth’s surface.

Occurrence: Arises from the reactions of precursors, which are nitrogen oxide and organic substances with solar radiation. Transport, power plants, and industry are the sources of the precursors.

Impact: Ground-level ozone ingestion may cause asthma, chest, or throat pain. Moreover, ground-level ozone diminishes the function of the liver and irritates the lungs.

Limit: The maximum daily 8-hour average in the EU is 120 µg/m3.

Clean Air for Ukraine

This project is led by a non-governmental organization Arnika (Czech Republic) in cooperation with local civic initiatives in industrial towns of Ukraine with financial support from the Transition Promotion Program of the Ministry of Foreign Affairs of the Czech Republic.

You can find more information about our activities and possibilities of involvement or share your thoughts with us by sending a message to


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