List of cancer clusters

This is a list of cancer clusters. A cancer cluster is a statistical event, which may or may not have a cause other than chance. There are other cancer clusters that occur without any obvious source of carcinogens.

North America
Date	Disease	Location	Number of cases	Cause	References
1917–1927	Osteosarcoma	New Jersey, Connecticut, Illinois	86	Radium	[1][2]
1938–1971	Adenocarcinoma	U.S.	750	Diethylstilbestrol	[3][4]
?–2018	Various cancers	St. Louis, Missouri	56	Uranium	[5]
1967–1973	Liver angiosarcoma (Hemangiosarcoma)	Louisville, Kentucky	4	Vinyl chloride monomer	[6]
1968–1995	Leukemia, Lymphoma	Camp Lejeune, North Carolina	13[note 1]	Trichloroethylene 1,2-Dichloroethylene Tetrachloroethylene Methylene chloride Vinyl chloride	[8][7]
1979–1996	Brain, CNS cancer	Toms River, New Jersey	90+	SAN trimer Styrene Acrylonitrile	[9][10][11]
1973–1986	Leukemia	Woburn, Massachusetts	21	Chloroform Tetrachloroethylene Trichloroethylene 1,2-Dichloroethene Arsenic	[12][13]
1982–1984	Testicular cancer	Fulton County, New York	3	Dimethylformamide (DMF) 2-Ethoxyethanol 2-Ethoxyethyl acetate 2-Butoxyethanol	[14]
1987–1999	Brain cancer, Leukemia, Lymphoma	Wilmington, Massachusetts	20	Unknown N-Nitrosodimethylamine (NDMA)	[15][16][17]
1993–2008	Childhood brain cancer, brain tumors, colon cancer, anal cancer, rectal cancer, breast cancer. Also nervous system damaged.	The Acreage, Florida	Unknown	Unknown Some have linked it to a nearby Pratt and Whitney, Beach Aggregates, and the Florida crystals.	[18]
1997–2002	Leukemia, rhabdomyosarcoma	Fallon, Nevada	17	Unknown Tungsten Arsenic Chlorpyrifos Dichlorodiphenyldichloroethylene (DDE) Benzene in jet fuel	[19][20][21][22]
1996–2013	Leukemia, brain tumors, lymphoma, other forms	Clyde, Ohio	36, mostly children	Unknown	[23]
1953–2010	Wide range of cancers	Shannon, Quebec	400	Trichloroethylene	[24][25]
2009-2024	Wide range of cancers, predominantly breast cancer	Raleigh, NC	99	Aroclor 1262, a commercial mixture of polychlorinated biphenyl (PCB) compounds	37
Europe
Date	Disease	Location	Number of cases	Cause	References
1968–1995	Leukemia	Seascale, Sellafield, England	9	Unsure Studies indicate a correlation with paternal preconceptional irradiation (PPI)	[26][27]
1978–1993	Leukemia	La Hague, Normandy, France	27	Unknown Speculated to be tritium	[28][29]
1980s	Leukemia, brain tumors	East Yorkshire, England	13	Polonium-210, lead, arsenic and other metal emitter; unproven link to Capper Pass tin smelter in Melton	[30][31][32][33]
1990–2005	Leukemia	Elbmarsch, Lower Saxony and Krümmel (Kruemmel), Geesthacht, Schleswig-Holstein in Germany	16	Unknown Speculated to be actinide, especially plutonium-241 of unknown origin that was found in the area or tritium from a nearby nuclear power plant	[34][35]
India
Date	Disease	Location	Number of cases	Cause	References
mid 1980s	Skin lesions, arsenicosis	West Bengal, India	Unknown	Arsenic	[36]