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395 Toxicologically significant compounds in animals, plants and the environment Acute toxicity Rat, LD 50 , oral Rat, LD 50 , dermal Rat, LC 50 , inhalation Rabbit, skin irritation Rabbit, eye irritation Guinea-pig, skin sensitization (test method used) Short-term studies of toxicity Target/critical effect Lowest relevant oral NOAEL Lowest relevant dermal NOAEL Lowest relevant inhalation NOAEC Genotoxicity Long-term studies of toxicity and carcinogenicity Target/critical effect Lowest relevant NOAEL Carcinogenicity Reproductive toxicity Reproduction target/critical effect Lowest relevant reproductive NOAEL Developmental target/critical effect Lowest relevant developmental NOAEL Neurotoxicity/delayed neurotoxicity Special studies Medical data Procymidone, hydroxyprocymidone > 5000 mg/kg bw > 2500 mg/kg bw > 1.5 mg/l Slight transient irritant Not irritating Negative (Magnusson & Kligman maximization test) Decreased body-weight gain, liver effects, testes 25 mg/kg bw per day 1000 mg/kg bw per day No data Not genotoxic Body weight, liver effects 14 mg/kg bw per day (rat) Liver tumours in mice; testes tumours in rats. Hypospadias; altered testes and epididymis weight 12.5 mg/kg bw per day Hypospadias (rat) 12.5 mg/kg bw per day No evidence in conventional studies Kinetic and metabolism studies in rats, monkeys, rabbits, mice and with human tissues showed differences between species. Rats having a relatively high area-under-the curve and a low capability to metabolize procymidone and hydroxyprocymidone. Receptor-binding assays showed that procymidone and hydroxyprocymidone could bind to rat and human androgen receptors. Both procymidone and hydroxyprocymidone were extensively bound (≥ 77%) to plasma proteins. Procymidone produced increases in luteinizing hormone and human chorionic gonadotrophin-stimulated production of testosterone in rats at 6000 ppm and ≥ 700 ppm respectively. Ejaculate mass was reduced in monkeys exposed to procymidone for 13 weeks at ≥ 100 mg/kg bw per day. NOAEL was 30 mg/kg bw per day Hydroxyprocymidone induced hypospadias in rats at ≥ 62.5 mg/kg bw per day; BMDL 10 was 43.8 mg/kg bw per day. No adverse findings reported PROCYMIDONE 349–401 JMPR 2007
396 Summary Value Study Safety factor ADI 0–0.1 mg/kg bw Rat, studies of developmental and reproductive toxicity 100 ARfD 0.1 mg/kg bw Rat, study of developmental toxicity 100 References Arai, M., Hasegawa, R. & Ito, N. (1980a) Three-month subacute toxicity study of S-7131 (Sumilex, Sumisclex) in mice. Unpublished report No. BT-00-0058 from Nagoya City University Medical School, Nagoya, Japan. Submitted to WHO by Sumitomo Chemical Co., Ltd, Osaka, Japan Arai, M., Hasegawa, R. & Ito, N. (1980b) Six-month subacute toxicity study of S-7131 (Sumilex, Sumisclex) in mice. Unpublished report No. BT-00-0057 from Nagoya City University Medical School, Nagoya, Japan. Submitted to WHO by Sumitomo Chemical Co., Ltd, Osaka, Japan. Bee, W. (1992) S-7131 90-day oral (gavage) subchronic study in the cynomolgus monkey. Unpublished report No BT-21-0147 from Hazleton Deutschland GmbH, Kesselfeld, Germany. Submitted to WHO by Sumitomo Chemical Co., Ltd, Osaka, Japan. Dalgard, D. & Machotka, S. (1992) Chronic toxicity study in dogs with procymidone. Unpublished report No. BT-21-0162 from Hazleton Washington, Vienna, Virginia, USA. Submitted to WHO by Sumitomo Chemical Co., Ltd, Osaka, Japan. Filler, R. & Parker, G. A. (1988) Oral chronic toxicity study and oncogenicity study in mice. Unpublished report No. BT-81-0126 from Hazleton Laboratories America Inc., Rockville, Maryland, USA. Submitted to WHO by Sumitomo Chemical Co., Ltd, Osaka, Japan. Fujita, T., Fukuda, T., Kato, T. & Miyamoto, J. (1976) Toxicity of S-7131 technical material to rats in prolonged dietary administration over 9 months. Unpublished report No. BT-60-0003 from Sumitomo Chemical Co., Ltd, Osaka, Japan. Submitted to WHO by Sumitomo Chemical Co., Ltd, Osaka, Japan Fukunishi, K. (2003a) A preliminary study of the effects of procymidone on external genitalia development in male fetuses by oral administration to cynomolgus monkeys. Unpublished report No. BT-0207 from Shin Nippon Biomedical Laboratories Ltd., Kagoshima, Japan. Submitted to WHO by Sumitomo Chemical Co., Ltd, Osaka, Japan. Fukunishi, K. (2003b) A study of the effects of procymidone on external genitalia development in male fetuses by oral administration to cynomolgus monkeys. Unpublished report No. BT-0208 from Shin Nippon Biomedical Laboratories Ltd., Kagoshima, Japan. Submitted to WHO by Sumitomo Chemical Co., Ltd, Osaka, Japan. Hara, M. (1991a) In vitro unscheduled DNA synthesis (UDS) assay of Sumilex in rat hepatocytes. Unpublished report No. BT-10-0142 from Sumitomo Chemical Co., Ltd, Osaka, Japan. Submitted to WHO by Sumitomo Chemical Co., Ltd. Hara, M. (1991b) In vitro chromosomal aberration test of Sumilex in Chinese hamster ovary cells (CHO-K1). Unpublished report No.BT-10-0141 from Sumitomo Chemical Co., Ltd, Osaka, Japan. Submitted to WHO by Sumitomo Chemical Co., Ltd. Hara, M. (1992) Comments on EPA’s ‘data evaluation report’ of the report entitled in vitro unscheduled DNA synthesis (UDS) assay of Sumilex in rat hepatocytes. Unpublished report No. BT-20-0149 from Sumitomo Chemical Co., Ltd, Osaka, Japan. Submitted to WHO by Sumitomo Chemical Co., Ltd. Hara, M. & Suzuki, H. (1980) Cytogenetic test of procymidone in mouse bone marrow. Unpublished report No. BT-00-0043 from Sumitomo Chemical Co., Ltd, Osaka, Japan. Submitted to WHO by Sumitomo Chemical Co., Ltd. PROCYMIDONE 349–401 JMPR 2007
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Pesticide residues in food — 2007
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TABLE OF CONTENTS Page List of part
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Dr Vicki L. Dellarco, Office of Pes
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Abbreviations used 3-MC ACTH ADI ai
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MRL MS MS/MS MTD NMR NOAEC NOAEL NO
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Introduction The toxicological mono
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AMINOPYRALID First draft prepared b
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5 higher renal excretion in the gro
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7 Table 4. Recovery of radioactivit
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9 Table 7. Pharmacokinetic paramete
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11 (c) Exposure by inhalation Five
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13 Table 9. Acute toxicity of amino
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15 The data from urine analysis rev
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17 18, monthly for palpable masses.
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19 Table 12. Body weights of rats f
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21 Table 15. Results of assays for
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23 in both groups, feed consumption
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25 neurotoxicity after 12 months. B
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27 The same five time-mated NZW rab
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29 Mortality was increased in all g
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31 Levels relevant to risk assessme
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33 References Brooks, K.J. (2001a)
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35 Consulting, The Dow Chemical Com
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ATRAZINE First draft prepared by Ru
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39 in the early 1990s; this reflect
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41 Maximum concentrations in the bl
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43 In a study on comparative metabo
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45 Table 1. Metabolism of atrazine
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47 Figure 2. Proposed metabolic pat
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49 to intact skin; and that no read
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51 the highest dose, and food consu
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53 mice (evaluated as roughly equiv
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55 Table 5. Incidence of mammary tu
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57 Table 6. Selected findings from
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59 was decreased when compared with
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61 Table 9. Selected findings of a
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63 proestrus at the expense of days
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65 Table 10. Selected studies of ge
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67 End-point Test object Concentrat
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69 Table 12. Relevant findings in a
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73 respectively) and in males at th
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77 All dams survived until the end
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79 250 and 500 ppm. Body-weight gai
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81 In an assay for reverse mutation
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83 on pubertal development in femal
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85 parameters (decreased pH, specif
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89 0, 75, 150 or 300 mg/kg bw per d
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91 The NOAEL was 25 ppm, equal to 1
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93 In a study on the effect of atra
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95 Delayed parturition was seen at
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97 observed in the pair-fed group.
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99 examined, offspring in the atraz
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101 antagonize E2-induced luciferas
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103 increase in steroidogenesis is
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105 The immune system of adult mice
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107 In a later review of cancer epi
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109 In a 25-day study in rabbits tr
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111 developmental toxicity were 10
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113 regulation in male offspring in
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115 (d) Diaminochlorotriazine (DACT
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117 Developmental target/critical e
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119 • The failure to ovulate resu
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121 The relationship between increa
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123 Table A2. Comparison of paramet
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125 Ballantine, L., Murphy, T. G. &
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127 Dunkelberg, H., Fuchs, J., Heng
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129 Heneweer, M., van den Berg, M.
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131 Lindsay, L.A., Wimbert, K.V., G
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133 Morseth, S.L. (1996d) Chronic (
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135 Rudzki, M.W., Batastina, G., &
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137 Tennant, A.H., Peng, B. & Klige
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AZINPHOS-METHYL First draft prepare
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141 methylation and oxidation of me
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143 Table 1. Acute oral toxicity of
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145 Table 2. Cholinesterase activit
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147 at the highest dose. In both sp
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149 Table 6. Cholinesterase activit
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151 Table 8. Fertility of F 0 and F
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153 Table 10. Fertility parameters
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155 Groups of 22 mated Sprague-Dawl
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157 after completion of the feeding
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159 reduced motor activity in males
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161 sensitivity with that of labora
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163 measures to prevent worker expo
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165 when brain cholinesterase activ
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167 Critical end-points for setting
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169 Eiben, R., Schmidt, W., & Loese
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171 Myhr, B.C. (1983) Evaluation of
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LAMBDA-CYHALOTHRIN First draft prep
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175 Figure 1. Chemical structures o
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177 In a comparative study, the abs
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179 Figure 2. Main pathways of biot
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181 (iv) Dermal sensitization In a
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183 observed in rats at the highest
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185 Mortality was not affected by t
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187 the group at 100 ppm, reduction
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189 and five females per group were
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191 10-12%) than those of controls
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193 Comments Biochemical aspects Or
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195 Toxicological evaluation Althou
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197 Metabolism in animals Toxicolog
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199 Harrison, M.P. (1984a) Cyhaloth
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DIFENOCONAZOLE First draft prepared
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203 a sex difference nor any marked
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205 demonstrated that the highest t
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207 Figure 3. Proposed metabolic pa
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209 of the study were unremarkable.
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211 Table 3. Results of studies of
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213 The no-observed-adverse-effect
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215 lower than those of rats in the
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217 hepatocellular enlargement. In
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219 i.e. males lost 15.4% and femal
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221 and 357. This reduced food cons
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223 There was very high mortality a
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225 Table 6. Treatment-related hist
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227 Rats Groups of 80 CRL:CD(SD)®
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229 Table 7. Histopathology finding
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231 D. Temporal association. The fe
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233 2.5 Reproductive toxicity (a) M
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235 t estes weights in the males at
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237 continued to be lower than thos
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239 Corpora lutea in each ovary wer
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241 S1 + S2, not ossified — —
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243 in the control group and in the
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245 physically examined for changes
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249 can occur in untreated mice, in
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251 Study of reproductive toxicity
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257 of the test article on microsom
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259 Ophthalmoscopic examinations pe
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261 the radioactivity was re-elimin
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263 In a single-dose study of neuro
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265 Estimate of acceptable daily in
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267 Clapp, M.J.L., Killick, M.E., H
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269 Herbold, B. (1983c) THS 2212 tr
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271 Pinto, P. (2006b) Difenoconazol
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DIMETHOMORPH First draft prepared b
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275 Five different treatment groups
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277 To investigate the significance
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279 and the E : Z isomer ratio was
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281 Table 10. Tissue distribution o
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283 (e) Dermal sensitization The de
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285 females at the highest dose, to
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287 The NOAEL was 10 mg/kg bw per d
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289 concentrations in females were
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291 health, moribundity and mortali
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293 0-9%, mean, 3.5%; only one out
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Table 26. Organ weights adjusted to
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297 cell hyperplasia. The testes tu
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299 unscheduled DNA synthesis, the
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301 Figure 3. Cumulative percentage
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303 Rabbits In a dose-range finding
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305 (b) Potentiation of hexobarbito
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307 0.2% or less of the administere
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309 eye-opening, pinna unfolding or
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311 Lowest relevant inhalation NOAE
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313 Gardner, J.R. (1989) CME 151 te
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315 van de Waart, E.J. (1991b) Eval
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318 Committee on Pesticide residues
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320 (a) Ocular irritation Rabbits T
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322 weights were decreased in males
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324 toxicity was 5 mg/kg bw per day
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326 respectively; range for histori
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328 Table 4. Incidence of Leydig-ce
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330 and/or bilateral) was noted in
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332 No treatment-related signs of m
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334 Table 6. Incidence of selected
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336 or teratogenic potential at the
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338 and progesterone. The concentra
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340 the doses used in the 1-year st
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342 No neurotoxic effects were seen
Page 359 and 360: 344 Lowest relevant reproductive NO
Page 361 and 362: 346 Keller, D.A. (1992c) Oncogenici
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Page 366 and 367: 351 Rats Groups of five male and fe
Page 368 and 369: 353 Table 1. Pharmacokinetic parame
Page 370 and 371: 355 Seven doses C max (µg equivale
Page 372 and 373: 357 Three groups of five male and f
Page 374 and 375: 359 The excretion of radioactivity
Page 376 and 377: 361 Figure 1. Proposed metabolic pa
Page 378 and 379: 363 water consumption were determin
Page 380 and 381: 365 finding. Histopathology reveale
Page 382 and 383: 367 The NOAEL was 500 ppm, equivale
Page 384 and 385: 369 The NOAEL was 100 mg/kg bw per
Page 386 and 387: 371 at 2000 ppm. Histopathology rev
Page 388 and 389: 373 b Each test was conducted in tr
Page 390 and 391: 375 experimental period. Rats were
Page 392 and 393: 377 hypospadias, testicular atrophy
Page 394 and 395: 379 a single dose, which produced o
Page 396 and 397: 381 The anti-androgenic activities
Page 398 and 399: 383 but only at 6000 ppm after 13 w
Page 400 and 401: 385 The results are summarized in T
Page 402 and 403: 387 males (all litters) in the grou
Page 404 and 405: 389 procymidone (18-27% of the admi
Page 406 and 407: 391 Procymidone induced liver tumou
Page 408 and 409: 393 The Meeting concluded that the
Page 412 and 413: 397 Harada, T. (1983) A review on m
Page 414 and 415: 399 Murakami, M., Yoshitake, A. & H
Page 416: 401 Tarui, H. (2005b) In vitro meta
Page 419 and 420: 404 Explanation Profenofos is the I
Page 421 and 422: 406 The metabolism of ring-labelled
Page 423 and 424: 408 2. Toxicological studies 2.1 Ac
Page 425 and 426: 410 Rabbits Groups of two male and
Page 427 and 428: 412 Groups of five male and five fe
Page 429 and 430: 414 control group and in the test g
Page 431 and 432: 416 of the rabbits at the highest d
Page 433 and 434: 418 The NOAEL for brain acetylcholi
Page 435 and 436: 420 Table 2. Histopathological find
Page 437 and 438: 422 1 out of 70; lowest dose, 3 out
Page 439 and 440: 424 body‐weight gains (3-10% decr
Page 441 and 442: 426 treated groups for body-weight
Page 443 and 444: 428 (b) Short-term studies of neuro
Page 445 and 446: 430 represented as equally as possi
Page 447 and 448: 432 pound and the equitoxic mixture
Page 449 and 450: 434 Inhibition of brain acetylcholi
Page 451 and 452: 436 Toxicological evaluation Erythr
Page 453 and 454: 438 Neurotoxicity/delayed neurotoxi
Page 455 and 456: 440 Harris, S.B. (1982) A teratolog
Page 457 and 458: 442 Puri, E. (1982a) Autoradiograph
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PYRIMETHANIL First draft prepared b
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447 Table 1. Excretion profile in r
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449 Table 3. Half-life of pyrimetha
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451 Table 4. Identification of meta
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453 SN 614 277. The presence of the
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455 2. Toxicological studies 2.1 Ac
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457 treated rabbits showed slight e
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459 still evident in the liver; how
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461 In a 90-day feeding study, grou
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463 per day or 800 mg/kg bw per day
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465 The dosing solutions were prepa
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467 mortality and morbidity. Change
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469 2.4 Genotoxicity Pyrimethanil w
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471 mean body‐weight gains. After
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473 Analysis of dosing solutions in
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475 In a 7-day feeding study, group
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477 at 200 mg/kg bw. These clinical
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479 s ystemic toxicity was 400 ppm
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481 Acute toxicity Rat, LD 50 , ora
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483 Grosshans, F. (2003) Pyrimethan
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485 Markham, L.P. (1989d) Technical
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ZOXAMIDE First draft prepared by I.
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489 The excretion of radioactivity
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491 Table 3. Mean concentration of
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493 Table 4. Distribution of metabo
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495 were also found in the urine, a
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497 owing to the absence of a dose-
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499 The NOAEL was 30 000 ppm, equiv
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501 Table 9. Haematological finding
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503 Table 11. Body weight, food con
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505 daily for signs of moribundity,
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507 Table 14 Results of studies of
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509 phase. The study was certified
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511 Table 16. Spleen weights and hi
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513 FOB/motor activity assessment,
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515 Excretion was primarily in the
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517 days 14 to 21. Increased relati
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519 Lowest relevant inhalation NOAE
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521 Morrison, R.D. & Gillette, D.M.
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ANNEX 1 Reports and other documents
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525 31. Pesticide residues in food:
Page 542 and 543:
527 67. Pesticide residues in food
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529 101. Pesticide residues in food
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