Region
United States
255
California
6
Illinois
5
Chicago
4
New York (State)
4
Pennsylvania
4
Philadelphia
4
Atlanta
3
Georgia
3
New York
3
Philadelphia (Pa.)
3
Canada
2
Europe
2
Florida
2
Germany
2
Germany (West)
2
Kentucky
2
Latin America
2
Memphis
2
Memphis (Tenn.)
2
New York (N.Y.)
2
New York County (N.Y.)
2
Ohio
2
Philadelphia County (Pa.)
2
San Francisco Bay Area
2
Shelby County (Tenn.)
2
Southern States
2
Tennessee
2
Asia
1
Boca Raton
1
Boston
1
California, Southern
1
Chicago (Ill.)
1
Cleveland
1
Colorado
1
Connecticut
1
Cook County (Ill.)
1
Delaware
1
Delaware River Valley (N.Y.-Del. and N.J.)
1
Denver
1
Detroit
1
Detroit (Mich.)
1
Great Britain
1
Hartford
1
Iran
1
Ithaca
1
Jacksonville
1
Los Angeles
1
Love Canal Chemical Waste Landfill (Niagara Falls, N.Y.)
1
Maine
1
more ...