Region
United States
238
États-Unis
91
New York (State)
54
California
13
Great Britain
12
Hudson River (N.Y. and N.J.)
12
USA
11
New York
10
Europe
8
Hudson River Estuary (N.Y. and N.J.)
8
Hudson River Watershed
8
Great Lakes (North America)
7
New Jersey
7
New York (État)
7
Etats-Unis d'Amérique
6
Grande-Bretagne
6
Great Lakes Watershed (North America)
6
China
5
Hudson River
5
Atlantic Ocean
4
England
4
Great Lakes
4
Great Lakes Region
4
Great Lakes Region (North America)
4
Japan
4
Love Canal Chemical Waste Landfill (Niagara Falls, N.Y.)
4
Pays de l'Union européenne
4
Washington (State)
4
Californie
3
Canada
3
Europe, Eastern
3
Hudson River Watershed (N.Y. and N.J.)
3
India
3
Israel
3
Los Angeles
3
Marcellus Shale
3
Mexico
3
New York (N.Y.)
3
New York City
3
New York Metropolitan Area
3
New York Region
3
Niagara Falls
3
Onondaga Lake (N.Y.)
3
Ontario, Lake (N.Y. and Ont.)
3
Soviet Union
3
Superior, Lake
3
Africa
2
Arctic regions
2
Boston Harbor
2
Bucyrus
2
more ...