Region
United States
38
Great Britain
14
France
12
Japan
12
China
11
Germany
11
Ukraine
10
Chornobylʹ
8
Soviet Union
8
Middle East
7
Belarus
6
Australia
5
Austria
4
Developing countries
4
Europe
4
États-Unis
4
Gulf of Mexico
4
Indonesia
4
Italy
4
Mexico, Gulf of
4
Netherlands
4
Russia (Federation)
4
Afghanistan
3
Alberta
3
Egypt
3
England
3
Fukushima-ken
3
Gulf Coast (U.S.)
3
Mexico
3
Nigeria
3
Aswan High Dam (Egypt)
2
Bangladesh
2
Bolivia
2
Bolivie
2
Chine
2
Congo (Democratic Republic)
2
Cuba
2
Czech Republic
2
East Asia
2
Greece
2
India
2
Japon
2
Kemerovo
2
Korea (South)
2
Kuznetsk Basin
2
London
2
Milan
2
Milan (Italy)
2
North America
2
Panama
2
more ...