Lowest radon risk: Czech towns over 20,000 residents
61 towns over 20,000 residents by the share of their addresses on bedrock with a low radon index (Czech Geological Survey map 1 : 50,000), biggest first. For a particular house, a measurement decides.
Source: Czech Geological Survey, radon index of the bedrock 1 : 50,000; RÚIAN address points. The ranking compares the Czech towns over 20,000 residents on Městomat without Prague, Brno and Ostrava, which have neighbourhood rankings of their own.
Frequently asked questions
Which Czech town over 20,000 residents has the lowest radon risk?
15 towns share the biggest share of addresses with a low radon index, Bohumín among them: 100.0 % of addresses. Třebíč has the smallest: 0.0 % of addresses.
How is the ranking calculated?
We match every address of the town with the Czech Geological Survey’s map of the bedrock’s radon index (1 : 50,000) and count the share on bedrock with a low index. The index says how much radon can rise from the ground into houses; only a measurement shows the real level in a house. We compare the Czech towns over 20,000 residents on Městomat without Prague, Brno and Ostrava, which have neighbourhood rankings of their own.
Which towns does the ranking compare?
61 Czech towns over 20,000 residents with data on Městomat: Bohumín, Břeclav, Frýdek-Místek, Hodonín, Hradec Králové, Karviná, Kopřivnice, Kroměříž, Mělník, Mladá Boleslav, Třinec, Uherské Hradiště, Valašské Meziříčí, Vsetín, Zlín, Havířov, Česká Lípa, Český Těšín, Pardubice, Prostějov, České Budějovice, Chrudim, Litoměřice, Děčín, Opava, Nový Jičín, Orlová, Vyškov, Přerov, Sokolov, Litvínov, Brandýs nad Labem-Stará Boleslav, Olomouc, Chomutov, Kladno, Most, Kolín, Cheb, Ústí nad Labem, Teplice, Krnov, Kutná Hora, Plzeň, Znojmo, Karlovy Vary, Strakonice, Blansko, Jindřichův Hradec, Jihlava, Příbram, Klatovy, Písek, Tábor, Havlíčkův Brod, Žďár nad Sázavou, Liberec, Beroun, Jablonec nad Nisou, Šumperk, Trutnov, Třebíč. Prague, Brno and Ostrava have neighbourhood rankings of their own.