Application for the Reassessment of a Hazardous Substance under ...

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Table C.3:Output from GENEEC2 exposure modellingScenario 1: Strawberry- 1 applicationRUN No. 1 FOR dichlorvos ON strawberri * INPUT VALUES *---------------------------------------------------------------------------------------------------------RATE (lb/AC) No.APPS & SOIL SOLUBIL APPL TYPE NO-SPRAY INCORPONE(MULT) INTERVAL Kd (PPM ) (%DRIFT) ZONE(FT) (IN)---------------------------------------------------------------------------------------------------------.712( .712) 1 1 .415000.0 GRLOFI( 2.9) .0 .0FIELD AND STANDARD POND HALFLIFE VALUES (DAYS)---------------------------------------------------------------------------------------------------------------------METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED(FIELD) RAIN/RUNOFF (POND) (POND-EFF) (POND) (POND)---------------------------------------------------------------------------------------------------------------------1.00 2 N/A 10.20- 1264.80 1.00 1.00GENERIC EECs (IN MICROGRAMS/LITER (PPB)) Version 2.0 Aug 1, 2001-------------------------------------------------------------------------------------------------PEAK MAX 4 DAY MAX 21 DAY MAX 60 DAY MAX 90 DAYGEEC AVG GEEC AVG GEEC AVG GEEC AVG GEEC-------------------------------------------------------------------------------------------------9.69 6.04 1.47 .52 .34Scenario 2: Strawberry – 2 applicationsRUN No. 2 FOR dichlorvos ON strawberri * INPUT VALUES *---------------------------------------------------------------------------------------------------------RATE (lb/AC) No.APPS & SOIL SOLUBIL APPL TYPE NO-SPRAY INCORPONE(MULT) INTERVAL Kd (PPM ) (%DRIFT) ZONE(FT) (IN)---------------------------------------------------------------------------------------------------------.712( .718) 2 7 .415000.0 GRLOFI( 2.9) .0 .0FIELD AND STANDARD POND HALFLIFE VALUES (DAYS)-------------------------------------------------------------------------------------------------------------------METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED(FIELD) RAIN/RUNOFF (POND) (POND-EFF) (POND) (POND)--------------------------------------------------------------------------------------------------------------------1.00 2 N/A 10.20- 1264.80 1.00 1.00GENERIC EECs (IN MICROGRAMS/LITER (PPB)) Version 2.0 Aug 1, 2001---------------------------------------------------------------------------------------------------PEAK MAX 4 DAY MAX 21 DAY MAX 60 DAY MAX 90 DAYGEEC AVG GEEC AVG GEEC AVG GEEC AVG GEEC---------------------------------------------------------------------------------------------------9.79 6.10 1.49 .52 .35Dichlorvos reassessment – application Page 126 <strong>of</strong> 436
Scenario 3: Vegetables – 1 applicationRUN No. 3 FOR dichlorvos ON vegetables * INPUT VALUES *--------------------------------------------------------------------------------------------------------RATE (lb/AC) No.APPS & SOIL SOLUBIL APPL TYPE NO-SPRAY INCORPONE(MULT) INTERVAL Kd (PPM ) (%DRIFT) ZONE(FT) (IN)--------------------------------------------------------------------------------------------------------.712( .712) 1 1 .415000.0 GRHIFI( 6.6) .0 .0FIELD AND STANDARD POND HALFLIFE VALUES (DAYS)--------------------------------------------------------------------------------------------------------------------METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED(FIELD) RAIN/RUNOFF (POND) (POND-EFF) (POND) (POND)--------------------------------------------------------------------------------------------------------------------1.00 2 N/A 10.20- 1264.80 1.00 1.00GENERIC EECs (IN MICROGRAMS/LITER (PPB)) Version 2.0 Aug 1, 2001---------------------------------------------------------------------------------------------------PEAK MAX 4 DAY MAX 21 DAY MAX 60 DAY MAX 90 DAYGEEC AVG GEEC AVG GEEC AVG GEEC AVG GEEC---------------------------------------------------------------------------------------------------10.16 6.41 1.56 .55 .37Scenario 4: Vegetables – 2 applicationsRUN No. 4 FOR dichlorvos ON vegetables * INPUT VALUES *----------------------------------------------------------------------------------------------------------RATE (lb/AC) No.APPS & SOIL SOLUBIL APPL TYPE NO-SPRAY INCORPONE(MULT) INTERVAL Kd (PPM ) (%DRIFT) ZONE(FT) (IN)----------------------------------------------------------------------------------------------------------.712( .718) 2 7 .415000.0 GRHIFI( 6.6) .0 .0FIELD AND STANDARD POND HALFLIFE VALUES (DAYS)-------------------------------------------------------------------------------------------------------------------METABOLIC DAYS UNTIL HYDROLYSIS PHOTOLYSIS METABOLIC COMBINED(FIELD) RAIN/RUNOFF (POND) (POND-EFF) (POND) (POND)-------------------------------------------------------------------------------------------------------------------1.00 2 N/A 10.20- 1264.80 1.00 1.00GENERIC EECs (IN MICROGRAMS/LITER (PPB)) Version 2.0 Aug 1, 2001--------------------------------------------------------------------------------------------------PEAK MAX 4 DAY MAX 21 DAY MAX 60 DAY MAX 90 DAYGEEC AVG GEEC AVG GEEC AVG GEEC AVG GEEC--------------------------------------------------------------------------------------------------10.29 6.50 1.59 .56 .37Scenario 5: Fruit- 1 applicationRUN No. 5 FOR dichlorvos ON fruit * INPUT VALUES *Dichlorvos reassessment – application Page 127 <strong>of</strong> 436
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Application for the Reassessment of
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6.1 Evaluation of options to streng
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EXECUTIVE SUMMARYIn briefERMA New Z
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Aerosol containing 50 g/kgdichlorvo
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ERMA New Zealand‘s recommendation
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26 - 29Outdoor public space usage30
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Substance details1-8,11-16,20-25,30
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1.2.3 In 2008, the Environmental Ri
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Table 1. Dichlorvos-containing subs
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public environments and use for bio
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available to it. In preparing this
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3.3 International regulatory positi
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3.6 Classification3.6.1 The HSNO cl
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Hazard Class /SubclassClassificatio
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Hazard Class /SubclassClassificatio
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Rates:Fogging: 13 ml / litre (water
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BV2 SurfaceInsecticideBV2 SurfaceIn
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Table 7.Dichlorvos outdoor and indo
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Scenario Crop/Use Method Rate Appli
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humidity conditions. The higher res
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4.3 EnvironmentIdentification of ad
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4.3.9.3 Aquatic environment - Groun
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is considered to be highly improbab
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RiskGroupRQ range Level of risk Use
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RiskGroupRQ range Level of risk Use
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assessment, as the Use Scenario inc
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Nonnegligible1 < RQ < 10Nonnegligib
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Table 12.LifecycleStageImport,manuf
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LifecycleStageUse -bystanderUseScen
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Table 13.Identification of benefici
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value that can be attributed to dic
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outbreak, MAF‘s ability to demons
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the duty of the Crown is not merely
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5.1.7.1 J. Hicking stated that dich
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Table 14. Comparative of hazard cla
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Crop Pest Active ingredient Preharv
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Crop Pest Active ingredient Preharv
Page 76 and 77: SECTION 6- PROPOSALS TO MANAGE RISK
Page 78 and 79: Assessment was carried out with spe
Page 80 and 81: 6.1.11 Controls to protect bystande
Page 82 and 83: Table 16Effect of additional contro
Page 84 and 85: Use Scenario Receptor Level of Risk
Page 106 and 107: have, and notes the following as ar
Page 108 and 109: Table 18Summary of benefits associa
Page 110 and 111: UseScenariosAssessment ofEffectOutc
Page 112 and 113: Substance detailsHSR000126DDVPInsec
Page 114 and 115: Table 22.there are no practicable r
Page 116: 7.4 Preliminary Recommendations7.4.
Page 119 and 120: method and LOQ)Water (principle ofm
Page 121 and 122: Appendix B: Environmental Fate of d
Page 123 and 124: Bioconcentration factor Gnathopogon
Page 125: Table C.2:Scenarios used in exposur
Page 129 and 130: FIELD AND STANDARD POND HALFLIFE VA
Page 131 and 132: insectivorous bird7 Passionfruit Sm
Page 133 and 134: 4 Leafyvegetables(BBCH ≥50)4 Leaf
Page 135 and 136: summer)7 passionfruit(BBCH 10-19)7
Page 137 and 138: Ground (lowboom)0.03 0.03 1.07 1.07
Page 139 and 140: Appendix D: Ecotoxicity of dichlorv
Page 141 and 142: ioaccumulationClearance timeLevel o
Page 143 and 144: Table D.5:Toxicity to terrestrial i
Page 145 and 146: Appendix E: Risk Assessment: Enviro
Page 147 and 148: Aquatic organsimsTable E.3:Environm
Page 149 and 150: 12345Crop type Table I.1 (Annex 1)
Page 151 and 152: 7 passionfruit(BBCH 20-39)7 passion
Page 153 and 154: Fruit (tree) 2052 70759 >50Passionf
Page 155 and 156: Appendix F: Human Toxicity of dichl
Page 157 and 158: CONTENTS:Title Page 11 Purpose 2Con
Page 159 and 160: 2 SUBSTANCE IDENTIFICATIONIUPAC nam
Page 161 and 162: However, dichlorvos has genotoxic p
Page 163 and 164: 4 ABSORPTION, DISTRIBUTION, METABOL
Page 165 and 166: aerosol cans (230-330 g dichlorvos)
Page 167 and 168: 4.3 Metabolism:found in tissues of
Page 169 and 170: dose of 1.0 mg/kg bw, a single gava
Page 171 and 172: eports. LD 50 = 46.4 mg/kg b.w. is
Page 173 and 174: 6 ACUTE DERMAL 6.1HSNO Classificati
Page 175 and 176: 7 ACUTE INHALATION 6.1HSNO Classifi
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measured and it was not possible to
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8 SKIN IRRITATION 6.3 & CORROSION 8
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9 EYE IRRITATION 6.4 & CORROSION 8.
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10 RESPIRATORY SENSITISATION 6.5AHS
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Justification for Classification: U
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12 MUTAGENICITY 6.6HSNO Classificat
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ERMA New Zealand CONFIDENTIAL Repor
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The ATSDR (1997) reported:“Dichlo
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•ATSDR (1997): http://www.atsdr.c
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13 CARCINOGENICITY 6.7HSNO Classifi
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fibroadenomas were observed in 6 (1
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• Sex/Numbers:• Test material:
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The NTP Peer Review concluded that:
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concurrent studies for comparison w
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The APVMA (2008a) reported a chroni
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was exposed. The estimated daily in
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14 REPRODUCTIVE TOXICITY 6.8HSNO Cl
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ppm during premating days, signific
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Toxicology, Chemistry and Life Scie
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addition, there was an increase in
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• Maternal toxicity NOAEL =• Ma
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Research Triangle Park, North Carol
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16 REPRODUCTIVE OR DEVELOPMENTAL TO
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17 SPECIFIC TARGET ORGAN TOXICITY 6
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There was a significant dose-relate
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KEY STUDY:• Type of study:• Spe
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BACKGROUND:The APVMA (2008a) also r
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cholinesterases can only be estimat
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Ltd, Sittingbourne Research Center,
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23 OTHER POTENTIAL TOXIC ENDPOINTS2
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―Results“Mortalities and clinic
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1984). QA study. Study conducted ac
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“No information was located on im
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“Comment: These incidents clearly
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25 ACCEPTABLE OPERATOR EXPOSURE LEV
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to pretreatment activity). When the
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cholinesterase inhibition in health
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protect agricultural workers who ha
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Wash: refers to skin washes; Dressi
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Hazard Class/SubclassHazardclassifi
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Hazard Class/SubclassHazardclassifi
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REFERENCES:APVMA, 2008a. ―DICHLOR
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Appendix 1:APVMA - Summary of bench
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“Inhalational NOEL for Occupation
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activity). In fact, treatment was s
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LAST PAGEDichlorvos reassessment -
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Dichlorvos:Occupational, Bystander,
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CONTENTS:Title Page 11 Purpose 2Con
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3ACTIVITY SCENARIOS3.1 Table (I) su
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access of bystanders to treated are
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can reduce dermal exposures to mixe
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contaminated with, respectively 0.0
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The modelling is based upon dischar
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Table II: Occupational Exposure Est
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Table III: Occupational Exposure Es
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Operation / RPE / PPETable IV: Occu
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1.25L product/ha; work rate, 1.25 h
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Application: Air-hose RPE + chem. r
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Application: Half-face RPE + overal
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P for RPE (% penetration): none, 1
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Table X: Occupational Exposure Esti
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provided: work day exposure is limi
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5POST-APPLICATION OR RE-ENTRY WORKE
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D = DFR x TC x DA x WR x AR x P / B
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Re-entry into out-door crops (Scena
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Re-entry into treated glasshouses d
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acceptable 240 minutes after applic
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Re-entry into treated glasshouses u
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Table XVII: Re-entry into glasshous
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lowest use rate (52 mg/m 3 ; 1300g
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DA = percentage dermal absorption [
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Re-entry into treated enclosed indu
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nature of the building itself, not
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Conclusions on re-entry worker expo
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6BYSTANDER & RESIDENT EXPOSURE & RI
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Children’s incidental ingestion o
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Table XX: Spray driftExposure throu
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Exposure through contactwithcontami
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Conclusions on bystander and reside
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Table XXIII: Dichlorvos Use Scenari
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mixing/loading. Mixing/loading fogg
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7.23 Re-entry for ventilation of in
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REFERENCES:APVMA, 2008a. ―DICHLOR
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Appendix 1:Occupational Exposure Es
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FactorExposure (μg/kg a.i. handled
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Inhalation exposure from cylinder c
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[0.01875 x {(0.018 x 0.05) + (2.68
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With half-face respirator (protecti
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With full-body chemical resistant c
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Appendix 4:Occupational Exposure Es
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With overalls and gloves (protectio
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The Dermal Exposure (D) is 2.06 μg
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TTR = turf transferable residues -
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F = fraction of residue retained on
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TTR = transferable residues - the E
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Public Space ApplicationsScenario (
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ERMA New Zealand‟s comment on the
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Enclosed SpaceAgricultural UseOutdo
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Appendix H: Qualitative Descriptors
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1.3. The likelihood applies to the
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Appendix I: Data from which classif
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Endpoint Units * Dichlorvos Propoxu
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Toxicity mixture calculationsSubcla
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Subclass 9.3 -Ecotoxicity to terres
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Table J.1:Existing controls for dic
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TrackingcontrolsIdentification cont
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Table J.2:Summary of default contro
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Hazardous Substances (Classes 1 to
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Hazardous Substances (Classes 6, 8,
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Hazardous Substances (Classes 6, 8,
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(a) means piping that—(i) is conn
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Code I29 Regs 51, 52 Signage requir
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Non-HSNO Act controlsAgricultural C
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Appendix K: Overseas regulatory act
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Product Use Further details ofuseSu
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Risk assessment identified concerns
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Current usesFormulations:Methods of
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CanadaStatusPMRA are undertaking a
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Appendix L: Parties consulted durin
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Animal Products Act 19995. The purp
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14. Regulatory control of these pro
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Zealand‘s trade in primary produc
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processed and stored. It employs ve
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may be taken to risk management in
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Appendix A• Agricultural Compound
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Appendix O: ReferencesACVM (2010) h
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