The Ministry of Environmental and Natural Resources together with SaveDnipro collected all current data on a single radiation map of Ukraine on Saveecobot https://www.saveecobot.com/radiation-maps. It shows measurements from checkpoints located across the country.
Data is collected automatically or manually by specialists on a daily basis, even in the most dangerous places. Today, there are 514 measurement points across the country.
You can have the exact info on the radiation level in any Ukrainian city and in Ukraine on your mobile phone.