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Table 1 U.S. registration year and accuracy of self-reported pesticide duration history for 38 chemicals reported on the AHS Phase 3 follow-up questionnaire (n = 24,170)

From: Pesticide exposure and risk of aggressive prostate cancer among private pesticide applicators

Common name

Class

Phase 1

Take-home questionnairea

Date first registered in U.S.b

Applicators reported pesticide use

Users with plausible responsesc

n

%

n

%

Herbicide

 Acetochlor

Amide

 

1981–1994

2604

10.8

2557

98.2

 Acifluorfen

Diphenyl ether

1980

321

1.3

317

98.8

 Bromoxynil

Nitrile

1965

679

2.8

678

99.9

 Clethodim

Cyclohexene oxime

 

1992

545

2.3

523

96.0

 Clomazone

Oxazole

1985

316

1.3

307

97.2

 Clopyralid

Pyridine/Aromatic acid

 

1987

1262

5.2

1252

99.2

 Cloransulam-methyl

Triazolopyrimidine/Amide

 

1997

586

2.4

554

94.5

 Dimethenamid

Amide

 

1991

748

3.1

725

96.9

 Fenoxaprop-p-ethyl

Phenoxy

 

1985

551

2.3

548

99.5

 Fluazifop-butyl

Phenoxy

1983

646

2.7

638

98.8

 Flumetsulam

Amide/Triazolopyrimidine

 

1985

1095

4.5

1087

99.3

 Fomesafen

Amide/Diphenyl ether

 

1987

660

2.7

656

99.4

 Glufosinate-ammonium

Organophosphorous

 

1993

1726

7.1

1685

97.6

 Imazaquin

Imidazolinone

1986

96

0.4

94

97.9

 Isoxaflutole

Oxazole/Cyclopropylisoxazole

 

1998

975

4.0

902

92.5

 Linuron

Urea

1966

48

0.2

48

100.0

 Maleic hydrazide

Growth inhibitor/ Gametocides

 

1952

387

1.6

386

99.7

 Mesotrione

Benzoylcyclohexanedione

 

2001

2243

9.3

1985

88.5

 Nicosulfuron

Urea

 

1990

1693

7.0

1668

98.5

 Picloram

Aromatic acid/ Pyridine

 

1964

2563

10.6

2558

99.8

 Rimsulfuron

Urea

 

1994

1146

4.7

1117

97.5

 Sethoxydim

Cyclohexene oxime

1982

438

1.8

429

97.9

 Simazine

Triazine

1957

353

1.5

353

100.0

 Sodium bentazon

Unclassified

1974/1975–1985

382

1.6

382

100.0

 Thifensulfuron-methyl

Urea

1989

388

1.6

369

95.1

 Triclopyr

Pyridine

 

1979

1440

6.0

1416

98.3

Insecticide

 Acephate

Organophosphorous

1974

1197

5.0

1145

95.7

 Bacillus thuringiensis

Unclassified

1961

200

0.8

198

99.0

 Chloropicrin

Unclassified

1975

239

1.0

223

93.3

 Cyfluthrin

Pyrethroid

 

1987

1849

7.6

1805

97.6

 Disulfoton

Organophosphorous

1961

270

1.1

269

99.6

 Dimethoate

Organophosphorous

1962

192

0.8

192

100.0

 Endosulfan

Organochlorine

1954

203

0.8

203

100.0

 Lambda-cyhalothrin

Pyrethroid

 

1989

876

3.6

867

99.0

 Methomyl

Carbamate

1968

162

0.7

160

98.8

 Tebupirimfos

Organophosphorous

 

1990–1995

1198

5.0

1148

95.8

 Tefluthrin

Pyrethroid

1989

767

3.2

733

95.6

Nematicide

 1, 3-dichloropropene

Fumigant

1954

158

0.7

158

100.0

  1. aFilled circle means chemical first appeared on take-home questionnaire; no circle means chemical first appeared on follow-up questionnaires (Phase 2/3)
  2. bRange of years presented for pesticides with evidence of use prior to established registration year; for duration of market availability calculations, the lower bound of years was used (for those with a range) and rounding to a 5- or 10-year increment was calculated occurred if it fell 1 year short of this increment
  3. cPlausible responses were those where total years reported were ≤ number of years calculated between Phase 3 completion year (2005–2010) and the official pesticide registration date