Cancer Effects: Summary
Fluoride & Fluorinated Pesticides
 
 

Pesticide

CAS No.

Cancer detail

Cancer site

Activity

US Approved on Food Commodities Registered use:
(includes a very limited number of countries)

Click here for details of Pesticides beginning with A-E

Acifluorfen

50594-66-6

Carcinogen • Liver (Mice)

Herbicide

NO Canada, Taiwan

Acifluorfen, sodium

62476-59-9

US EPA: "Probable Human Carcinogen"

• Liver (Mice)

Herbicide

YES

US: permitted in or on 5 food commodities:
Peanut,
Rice, grain,
Rice, straw,
Soybean,
Strawberry

See food tolerances

Australia, Hungary, US

Bifenthrin

82657-04-3 (Cis);

83322-02-5 (Trans)

US EPA: "Possible Human Carcinogen"

• Urinary bladder (Mice, male)

• Lung (Mice, female)

Acaricide

Insecticide

YES

US: As of Feb 11, 2005, permitted in or on 198 food commodities.

See food tolerances

Also, a tolerance of 0.05 ppm in or on all food/feed items (other than those covered by a higher tolerance as a result of use on growing crops) in food/feed handling establishments.

Australia, Hungary, Japan, New Zealand, Portugal, South Africa, Taiwan, Tanzania, Uganda, UK, US

Chlorfenapyr

122453-73-0

US EPA: "Suggestive Evidence of Carcinogenicity, but Not Sufficient to Assess Human Carcinogenic Potential'' based on significant trends in liver tumors (adenomas and combined adenomas/ carcinomas), malignant histiocytic sarcomas, and testicular cell tumors in male rats and uterine polyps in female rats seen at the highest dose."

• Liver

• Testicular

• Uterine

• Bone: Histiocytic sarcomas

Acaricide

Insecticide

YES

US Sept 26, 2003:
1 ppm in or on several raw vegetables

See food tolerances

US Jan 26, 2005:
A tolerance of 0.01 ppm was established for residues of chlorfenapyr in or on all food commodities as a result of application of chlorfenapyr to crack, crevice and spot applications in food/feed handling areas where food/feed products are prepared, held, processed, or served.

Australia, Japan, Philippines, South Africa, Taiwan, Tanzania, US, Vietnam

1-Chloro-1,1-difluoroethane

75-68-3

Potentially carcinogenic to animals.

na

Solvent

EPA List 2 Inert

YES

US - Because this is an "Inert", the public is not allowed to know which crops it is used on.

US

Chlorodifluoromethane

75-45-6

US EPA:

Squamous cell carcinoma and fibrosarcoma of the stomach were reported in 92% of exposed males and 94% of exposed females

Chlorofluoromethane was found to be a highly active mutagen in the Salmonella reverse mutation assay, and to induce transformation of BHK21 cells in vitro

A computerized analysis of structure-activity relationships based on a set of rules generated by US EPA experts (Oncologic, version 1.0) finds that chlorofluoromethane is of high-to-moderate concern. (This is the highest level of concern noted for chemicals which are not included in the database of carcinogenicity bioassay results from which the program rules are derived.)

IARC: In the inhalation study in rats, males receiving the high dose had increased incidences of fibrosarcomas and Zymbal-gland tumours

• Stomach

Insecticide

Fungicide

Propellant

EPA List 2 Inert

YES

US - Because this is an "Inert", the public is not allowed to know which crops it is used on.

US

Chlorofluoromethane

593-70-4

Potent carcinogen (to the rat stomach)

• Stomach (rat)

EPA List 3 Inert

YES

US - Because this is an "Inert", the public is not allowed to know which crops it is used on.

US

Clodinafop-propargyl

105512-06-9

US EPA:
Likely to be carcinogenic to humans.

• Prostate (Rats)

• Ovary (Rats)

• Liver (Mice, both sexes)

• Blood vessel tumors (Mice, female)

Herbicide

YES

US - Wheat (forage, grain, hay, straw)

See food tolerances

Australia, Canada, Denmark, Hungary, India, Netherlands, New Zealand, South Africa, UK, US

Cyhalofop-butyl

122008-85-9

Carcinogenicity • Kidney (Mice, female)

Herbicide

YES

US: Rice (Grain, Straw)

See food tolerances

Japan, Phillipines, Taiwan, US, Vietnam  

Dichlofluanid

1085-98-9

May be mutagenic and/or carcinogenic for exposed humans

na

Wood Preservative

Antifoulant

Fungicide

Acaricide

NO Australia, Denmark, Germany, Hungry, Japan, New Zealand, Portugal, South Africa, Taiwan, UK

Dichlorofluoromethane

75-43-4

Carcinogen

na

EPA List 2 Inert

Propellant

YES

US - Because this is an "Inert", the public is not allowed to know which crops it is used on.

US

Dichlorotetrafluoroethane

76-14-2

Carcinogen

na

Propellant

Former EPA List 2 Inert

NO -

Diflubenzuron

35367-38-5

... Notwithstanding diflubenzuron is negative in in vivo long-term carcinogenicity studies, its co-mutagenic potential may be of concern in the presence of ubiquitous premutagens (e.g. diet, environmental pollutants). Furthermore, the ability of these insecticides to act as homeostatic disruptors should not be underestimated.

The minor metabolite, 4-chloroaniline, was shown to be positive in several in vitro mutagenicity assays using various endpoints. It is carcinogenic in rats and mice. The neoplastic lesions related to administration of 4-chloroaniline were benign and malignant mesenchymal tumours in the spleens of male rats and haemangiomas and haemangiosarcomas, primarily in the spleen and liver of male mice.

Effects on humans. The diflubenzuron metabolite, 4-chloroaniline, has been reported to cause methaemoglobinaemia in exposed workers and in neonates inadvertently exposed.

Co-mutagenic potential

• Liver (Rat, male) - attributed to non-fluorinated metabolite

• Spleen (Rat, male)
attributed to non-fluorinated metabolite

Insecticide

Acaricide

YES

US - Permitted in or on over 400 food commodities, including:
Artichoke, Egg, Grapefruit, Pasture rangeland), Milk, Mushroom, Pear, Rice, Soybean, Tangerine, Walnut, Cattle, Goat, Horse, Hog, Poultry, Sheep 

See food tolerances

Australia, Canada, Denmark, Finland, Hungary, India, Japan, Netherlands, New Zealand, Portugal, Taiwan, UK, US
Africa: Burkina Faso, Cape Verde, Chad, Gambia, Gunina-Bissau, Madagascar, Mali, Mauritania, Niger, Senegal, South Africa, Tanzania  

Ethalfluralin

55283-68-6

US EPA: "Possible Human Carcinogen"

Increased mammary gland fibroadenomas and adenomas/fibroadenomas combined in female rats. The tumor incidences were statistically significant at both the mid and high dose, and exceeded of the upper range of historical controls

Exposure to ethalfluralin from food is estimated to result in a lifetime cancer risk of 7.11 x 10-7. Cancer risks of less than 1 x 10-6 are generally considered to be negligible.

• Breast (Rat, female)

Herbicide

YES

US - Permitted in or on 26 food commodities, including:
Bean (dry, seed), Canola (seed), Peanut, Pea (dry, seed), Safflower (seed), Soybean, Sunflower (seed), Cantaloupe, Cucumber, Melon, Muskmelon, Watermelon

See food tolerances

Canada, Hungary, US
Click here for details of Pesticides beginning with F

Fipronil

120068-37-3

US EPA: "Possible Human Carcinogen"

• Thyroid (Rat, both sexes)

Acaracide

Insecticide

YES

US - permitted in or on 18 food commodities, including:
Cattle, Corn, Egg, Goat, Hog, Horse, Milk, Poultry, Rice, Sheep

See food tolerances

Australia, Denmark, Finland, Hungary, India, Japan, Netherlands, New Zealand, Philippines, Taiwan, US
Africa: Burkina Faso, Cape Verde, Chad, Gambia, Guinea-Bissau, Madagascar, Mali, Mauritania, Niger, Senegal, South Africa, Tanzania, Uganda

Fluazinam

79622-59-6

US EPA:

Clear evidence of carcinogenicity (hepatocellular tumors) in male mice, but not in females.

Some evidence of carcinogenicity (thyroid gland follicular cell tumors) in male rats, but not in females.

Equivocal/some evidence of carcinogenicity (hepatocellular tumors) in male mice, but not in females,

• Liver (Mice, male)

• Thyroid (Rat, male)

Fungicide

YES

US - Peanuts, Potatoes, Grape (wine)

See food tolerances

Australia, Denmark, Finland, Germany, Hungary, Japan, Netherlands, New Zealand, Philippines, Portugal, Taiwan, UK, US

Flucythrinate

70124-77-5

Suggestive evidence that this substance can act as tumour promoter. • Tumor promoter

Acaricide

Insecticide

NO (Revoked) India, Japan, Portugal, Taiwan

Fludioxonil

131341-86-1

Statistically significant trend for malignant lymphomas

• Lymphomas (Rat, female)

Fungicide

YES

US:
Permitted in or on 948 food commodities

See food tolerances

Australia, Canada, Denmark, Finland, Germany, Hungary, India, Japan, Netherlands, New Zealand, South Africa, Taiwan, UK, US

Fluometuron

2164-17-2

US EPA: "Possible Human Carcinogen" • Liver (Mice, male)

Herbicide

NO

Registered in US for Cotton, undelinted seed

See tolerances

Australia, India, US
Africa: Burkina Faso, Cape Verde, Chad, Gambia, Guinea-Bissau, Mali, Mauritania, Niger, Senegal, South Africa, Tanzania

Fluorine

7782-41-4

The high incidence of cancer among hospital personnel repeatedly exposed to fluorine-containing general anesthetics raises a fundamental need to examine other fluorocarbon-exposed workers for similar effects. 

Fluthiacet-methyl

117337-19-6

US EPA: "likely to be a human carcinogen"

• Pancreatic tumors (Rats, male)

• Liver (Mice, both sexes)

Herbicide

YES

US - permitted in or on 9 food commodities, including:
Corn, Soybean seed

See food tolerances

US

Fomesafen

72178-02-0

US EPA: "Possible Human Carcinogen"

• Liver (Mice, both sexes)

Herbicide

NO

In 2003, the Code of Federal Regulations listed both Fomesafen and the Sodium salt of fomesafen with a tolerance of 0.05 ppm on Soybean.

Canada, France, Hungary, Italy, South Africa, Tanzania, UK

Fomesafen sodium

108731-70-0

Possible Carcinogen

• Liver (Rats and/or Mice)

Herbicide

YES

US: Soybean
and Temporary tolerances for Snap beans and Dry beans

See food tolerances

US
Click here for details of Pesticides beginning with G-R

Haloxyfop-etotyl

87237-48-7

Carcinogenic effects in mice even at very low doses. na

Herbicide

NO

Denmark, Madagascar 

Haloxyfop-methyl 

69806-40-2

US EPA: Probable Human Carcinogen

• Liver (Rats/and or Mice)

Herbicide

NO

India

Hexafluoropropene, polymer with tetrafluoroethylene

25067-11-2

IARC: "Tetrafluoroethylene is possibly carcinogenic to humans (Group 2B)."

• Liver (Rats, both sexes)

EPA List 3 Inert

YES

Because this is an "Inert", the public is not allowed to know which crops it is used on.

Not Known

Hexaflurate

17029-22-0

Arsenic is a Carcinogen

As F6 K (INORGANIC-Arsenic) 

na

Herbicide

Wood Preservative

NO

Australia

Hydramethylnon

67485-29-4

US EPA: Possible Human Carcinogen

• Lung (Mice, female)

Insecticide

YES

US:
Grass (pasture & rangeland)
Grass hay (pasture & rangeland)
Pineapple

See food tolerances

Australia, Canada, India, Netherlands, New Zealand, Philippines, South Africa, Tanzania, US 

Isoxaflutole

141112-29-0

US EPA: Likely to be carcinogenic to humans

• Liver (Rats, both sexes)

• Thyroid (Rats, male)

Herbicide

YES

US and Canada:
Cattle, Corn, Egg, Goat, Hog, Horse, Milk, Poultry, Sheep

US - permitted in or on 28 food commodities

See food tolerances

Australia, Canada, Germany, Hungary, Netherlands, Portugal, US
Africa: 
Burkina Faso, Cameroon, Cape Verde, Chad, Gambia, Guinea-Bissau, Mali, Mauritania, Niger, Senegal, South Africa

Lactofen

77501-63-4

US EPA:

1987: Probable Human Carcinogen

2004: Likely to be carcinogenic to humans

• Liver (Rodents)

Herbicide

YES

US:
Beans, snap, succulent (excluding limas)
Cotton, gin byproducts
Cotton, undelinted seed
Peanut
Soybean, seed

See food tolerances

India, US, Vietnam

Norflurazon

27314-13-2

US EPA: Possible Human Carcinogen

• Liver (Mice, male)

Herbicide

YES

US - permitted in or on 59 food commodities

See food tolerances

Australia, New Zealand, South Africa, US

Oxyfluorfen

42874-03-3

US EPA: Possible Human Carcinogen

• Liver (Mice)

Herbicide

YES

US - permitted in or on 91 food commodities

See food tolerances

Australia, Canada, Hungary, India, New Zealand, Philippines, Portugal, South Africa, Taiwan, US 

Penoxsulam

219714-96-2

US EPA: Suggestive Evidence of Carcinogenicity But not sufficient to assess human carcinogenic potential and, therefore, quantification of human cancer risk is not required.

• Leukemia (Rats, male)

Herbicide

YES

US -
Rice, grain
Rice, straw

See food tolerances

US

 

 

 

Prodiamine

29091-21-2

US EPA:  Possible Human Carcinogen • Thyroid

Herbicide

NO

US: There are 96 Active products containing this herbicide, which is used mainly on lawns

US, Australia

Profluralin

26399-36-0

US EPA:  Profluralin has been evaluated as a carcinogen

The human carcinogen potency factor (q(l)*) for profluralin is .028 (mg/kg bw/day)-1 for oral exposure.

na

Herbicide

NO

Revoked for use by EPA - was used on several food commodities

believed
obsolete or
discontinued

Pyraflufen-ethyl

129630-19-9

US EPA: Likely to be Carcinogenic to Humans'' by the oral route

• Liver 

Herbicide

YES

US: 13 tolerances for: Corn, Cotton, Potato, Soybean 

See food tolerances

Japan, US

Japan:
Apple, Barley, Chestnut, Grape, Grapefruit, Japanese persimon, Lemon, Lime, Mume plum, NATSUDAIDAI (whole), Orange (including Navel), Other citrus fruits, Peach, Pear, Rice, UNSHU orange, Wheat

Click here for details of Pesticides beginning with S-Z

Silafluofen

105024-66-6

Tumor-promoting

na

Insecticide

Termiticide

Wood preservative

NO

India, Japan, Taiwan, Vietnam

Japan: Apple, Pear, Persimon, Rice, Tea

Taiwan: Drupe, Rice, Small berries

Sodium fluoride

7681-49-4

A 1992 New Jersey Department of Health report: "Between the years 1970 and 1989, the rate of osteosarcoma (among 10-19 year old males) was found to be 3.5 to 6.3 times greater in the fluoridated versus unfluoridated areas."

• Bladder (Cryolite workers)

• Lung (Cryolite workers)

• Osteosarcoma
(Young boys; male rats)

• Uterine cancer

Wood preservative

EPA List 4B Inert

YES

US - Because this is an "Inert", the public is not allowed to know which crops it is used on.

Australia, Canada, New Zealand, US, Vietnam 

Tetraconazole

112281-77-3

US EPA: Likely to be carcinogenic to humans

• Liver

Fungicide

YES

US: Cattle, Milk, Sugarbeets,
Sugarbeet-related commodities 

See food tolerances

 

Brazil, Hungary, Japan, Portugal, South Africa, Taiwan, UK, US 

Thiazopyr

117718-60-2

US EPA: PossibleHuman Carcinogen

• Thyroid

Herbicide

YES

US: Grapefruit, Orange

See food tolerances

Australia, US

Tolylfluanid

731-27-1

US EPA: Likely to be carcinogenic to humans

• Thyroid

Fungicide

YES

US approved tolerances:
On Imported: Apple, Grape, Tomato, Hop

See food tolerances

Australia, Denmark, Finland, Germany, Hungary, New Zealand, Tanzania, UK, US  

Trifluralin

1582-09-8

US EPA: Possible Human Carcinogen

• Urinary bladder tumors in females

• Renal pelvis carcinomas in male rats

• Thyroid (males)

• Non-Hodgkin's Lymphoma

Herbicide

YES

US - permitted in or on 129 food commodities

See food tolerances

Australia, Canada, Finland, Germany, Hungary, Japan, India, New Zealand, Portugal, South Africa, Taiwan, UK, US, Vietnam

Triflusulfuron-methyl

126535-15-7

US EPA: Possible Human Carcinogen

• Liver

• Testicular

Herbicide

YES

US: Beet (sugar, roots & tops), Chicory root

See food tolerances

Canada, Denmark, Finland, Germany, Netherlands, UK, US

 
Fluoride Action Network | Pesticide Project | 315-379-9200 | pesticides@fluoridealert.org