97-6209. BASF Corporation; Pesticide Tolerance Petition Filing  

  • [Federal Register Volume 62, Number 48 (Wednesday, March 12, 1997)]
    [Notices]
    [Pages 11450-11453]
    From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
    [FR Doc No: 97-6209]
    
    
    -----------------------------------------------------------------------
    
    ENVIRONMENTAL PROTECTION AGENCY
    [PF-721; FRL-5592-7]
    
    
    BASF Corporation; Pesticide Tolerance Petition Filing
    
    AGENCY: Environmental Protection Agency (EPA).
    
    ACTION: Notice of filing.
    
    -----------------------------------------------------------------------
    
    SUMMARY: This notice announces the filing of pesticide petitions 
    proposing the tolerances for residues of the pesticide pyridaben, [2-
    tert-butyl-5-(4-ter-butylbenzylthio)-4-chloropyridazin-3(2H)-one] and 
    its metabolites PB-7 (2-tert-butyl-5-[4-(1-carboxy-1-
    methylethyl)benzylthio]-4-chloropyridazin-3(2H)-one) and PB-9 (2-tert-
    butyl-4-chloro-5-[4-(1,1-dimethyl-2-hydroxyethyl)benzylthio]-
    chloropyridazin-3(2H)-one). BASF is petitioning EPA for the 
    establishment of tolerances for use of pyridaben to control certain 
    pests on apples, pears, citrus, almonds, peaches (imported commodity), 
    plums (imported commodity), and grapes (imported commodity). The 
    proposed tolerances for pyridaben are: apples at 0.6 ppm, wet apple 
    pomace at 1.0 ppm, pears at 0.75 ppm, citrus at 0.5 ppm, dried citrus 
    pulp at 1.5 ppm, citrus oil at 10.0 ppm, almonds at 0.05 ppm, almond 
    hulls at 4.0 ppm, peaches at 0.05 ppm, plums at 0.05 ppm, and grapes at 
    0.75 ppm. The proposed tolerances for pyridaben and its metabolites 
    are: milk at 0.01 ppm, meat at 0.05 ppm, meat by-products at 0.05 ppm, 
    and fat at 0.05 ppm. This summary was prepared by the petitioner.
    
    DATES: Comments, identified by the docket control number [PF-721], must 
    be received on or before April 11, 1997.
    
    ADDRESSES: By mail, submit written comments to: Public Response and 
    Program Resources Branch, Field Operations Division (7506C), Office of 
    Pesticide Programs, Environmental Protection Agency, 401 M St., SW, 
    Washington, DC 20460. In person, bring comments to: Rm. 1132 CM #2, 
    1921 Jefferson Davis Highway, Arlington, VA 22202. Comments and data 
    may also be submitted electronically by sending electronic mail (e-
    mail) to: opp-docket@epamail.epa.gov. Electronic comments must be 
    submitted as an ASCII file avoiding the use of special characters and 
    any form of encryption. Comments and data will also be accepted on 
    disks in WordPerfect 5.1 file format or in ASCII file format. All 
    comments and data in electronic form must be identified by the docket 
    control number [PF-721]. Electronic comments on this notice may be 
    filed online at many Federal Depository Libraries. Additional 
    information on electronic submissions can be found in Unit II. of this 
    document.
        Information submitted as comments concerning this notice may be 
    claimed confidential by marking any part or all of that information as 
    ``Confidential Business Information'' (CBI). The CBI should not be 
    submitted through e-mail. Information marked as CBI will not be 
    disclosed except in accordance with procedures set forth in 40 CFR part 
    2. A copy of the comment that does not contain CBI must be submitted 
    for inclusion in the public record. Information not marked confidential 
    may be disclosed publicly by EPA without prior notice. All written 
    comments will be available for public inspection in Rm. 1132 at the 
    address given above, from 8:30 a.m. to 4 p.m., Monday through Friday, 
    excluding legal holidays.
    
    FOR FURTHER INFORMATION CONTACT: Richard Keigwin, Product Manager (PM) 
    10, Registration Division (7505C), Office of Pesticide Programs, 
    Environmental Protection Agency, 401 M St., SW., Washington, DC 20460. 
    Office location, telephone number, and e-mail: Crystal Mall #2, Rm. 
    210, 1921 Jefferson Davis Highway, Arlington, VA 22202, 703-305-6788, 
    e-mail: keigwin.richard@epamail.epa.gov.
    
    SUPPLEMENTARY INFORMATION: EPA has received pesticide petitions (PP) 
    5F4543 (on citrus), 4E4370 (on imported commodities) and 6F4651 
    (apples), 6F4741 (almonds), and 6F4721 (pears) from BASF Corporation, 
    Agricultural Products, PO Box 13528, Research Triangle Park, NC 27709. 
    The petition proposes, pursuant to section 408 of the Federal Food, 
    Drug and Cosmetic Act (FFDCA), 21 U.S.C section 346a, to amend 40 CFR 
    part 180 to establish tolerances for the pesticide pyridaben [2-tert-
    butyl-5-(4-ter-butylbenzylthio)-4-chloropyridazin-3(2H)-one] in or on 
    the raw agricultural commodities: apples, wet apple pomace, pears, 
    citrus, dried citrus pulp, citrus oil, almonds, almond hulls, peaches, 
    plums, and grapes, respectively. The petition also proposes to 
    establish tolerances for pyridaben and its metabolites PB-7 (2-tert-
    butyl-5-[4-(1-carboxy-1-methylethyl)benzylthio]-4-chloropyridazin-
    3(2H)-one) and PB-9 (2-tert-butyl-4-chloro-5-[4-(1,1-dimethyl-2-
    hydroxyethyl)benzylthio]-chloropyridazin-3(2H)-one) in or on the raw 
    agricultural commodities: milk, meat, meat-by-products, and fat. EPA 
    has determined that the petitions contain data or information regarding 
    the elements set forth in section 408(d)(2) of the FFDCA; however, EPA 
    has not fully evaluated the sufficiency of the submitted data at this 
    time or whether the data supports granting of this petition. Additional 
    data may be needed before EPA rules on the petition.
        As required by section 408(d) of the FFDCA, as recently amended by 
    the Food Quality Protection Act (FQPA), Pub. L. 104-170, BASF included 
    in the petition a summary of the petition and authorization for the 
    summary to be published in the Federal Register in a notice of receipt 
    of the petition. The summary represents the views of BASF. EPA is in 
    the process of evaluating the petition. As required by section 
    408(d)(3) of the FFDCA, EPA is including the summary as a part of the 
    notice of filing. EPA may have made minor edits to the summary for the 
    purpose of clarity.
    
    I. Petition Summary
    
    A. Plant and Animal Metabolism
    
        BASF Corporation notes that metabolism in plants and animals is 
    understood.
    
    B. Analytical Method
    
        The proposed analytical method involves extraction, partition, 
    clean-up and detection of residues by gas chromatography/electron 
    capture detector (gc/ecd).
    
    C. Magnitude of the Residues
    
        Nine pear residue trials were conducted in six states. Residues of 
    pyridaben were measured by gc/ecd. The method of detection had a limit 
    of detection of 0.05 parts per million (ppm). Residues ranged from 0.07 
    to 0.58 ppm.
        Twelve apple residue trials were conducted in six states. Residues 
    of
    
    [[Page 11451]]
    
    pyridaben were measured by gc/ecd. The method of detection had a limit 
    of detection of 0.05 ppm. Residues ranged from 0.08 to 0.44 ppm.
        Nineteen citrus residue trials were conducted in four states. 
    Residues of pyridaben were measured by gc/ecd. The method of detection 
    had a limit of detection of 0.05 ppm. Residues ranged from 0.05 to 0.42 
    ppm.
        Eight almond residue trials were conducted in California. Residues 
    of pyridaben were measured by gc/ecd. The method of detection had a 
    limit of detection of 0.05 ppm. Residues were < 0.05="" ppm="" in="" all="" trials.="" eight="" peach="" residue="" trials="" were="" conducted="" in="" chile.="" residues="" of="" pyridaben="" were="" measured="" by="" gc/ecd.="" the="" method="" of="" detection="" had="" a="" limit="" of="" detection="" of="" 0.05="" ppm.="" residues="" were="">< 0.05="" ppm="" in="" all="" trials.="" six="" plum="" residue="" trials="" were="" conducted="" in="" chile.="" residues="" of="" pyridaben="" were="" measured="" by="" gc/ecd.="" the="" method="" of="" detection="" had="" a="" limit="" of="" detection="" of="" 0.05="" ppm.="" residues="" were="">< 0.05="" ppm="" in="" all="" trials.="" eight="" grape="" residue="" trials="" were="" conducted="" in="" chile.="" residues="" of="" pyridaben="" were="" measured="" by="" gc/ecd.="" the="" method="" of="" detection="" had="" a="" limit="" of="" detection="" of="" 0.05="" ppm.="" residues="" ranged="" from="">< 0.05="" to="" 0.22="" ppm.="" d.="" toxicological="" profile="" 1.="" acute="" toxicity="" testing.="" a.="" acute="" oral="" toxicity="" (rat):="">50 
    = 1100 milligrams/kilogram (mg/kg) in males; 570 mg/kg in females. Tox 
    Category: III
        b. Acute oral toxicity (mouse): LD50 = 424 mg/kg in males; 383 
    mg/kg in females. Tox Category: II
        c. Acute dermal toxicity (rat): LD50 = > 2000 mg/kg in males 
    and females. Tox Category: III
        d. Acute inhalation toxicity (rat): LC50 = 0.66 mg/l in males; 
    0.62 mg/l in females. Tox Category: III
        e. Primary eye irritation (rabbit): Pyridaben is a slight ocular 
    irritant. Tox Category: III
        f. Primary dermal irritation (rabbit): Pyridaben is not a dermal 
    irritant. Tox Category: IV
        g. Dermal sensitization (guinea pig): Pyridaben is not a dermal 
    sensitizer.
        2. Acute neurotoxicity (rat): Rats were dosed once with 0, 50, 100 
    and 200 mg/kg. The no observed effect level (NOEL) for systemic 
    toxicity was determined to be 50 mg/kg for both males and females. The 
    lowest observed effect level (LOEL) for systemic effects was determined 
    to be 100 mg/kg in both sexes based on decreased food consumption, 
    decreased body weight gain and increased clinical signs. The LOEL for 
    neurobehavioral effects was determined to be 200 mg/kg in males and 
    >200 mg/kg in females.
        3. Subchronic toxicity testing. a. 21-Day dermal (rat): Rats were 
    repeatedly dosed with pyridaben at 0, 30, 100, 300 and 1000 mg/kg/day 
    for 21 days. The NOEL was determined to be 100 mg/kg/day and the LOEL 
    300 mg/kg/day based on decreased body weight gain in females.
        b. 90-Day rodent (rat): CD rats were dosed with pyridaben at 0, 30, 
    65, 155 and 350 ppm in the diet for 13 weeks. The NOEL was determined 
    to be 65 ppm (4.94 mg/kg/day) for males and 30 ppm (2.64 mg/kg/day) in 
    females. The LOEL for males was determined to be 155 ppm (11.55 mg/kg/
    day) based on reduced body weight gain, reduced food consumption, 
    reduced food efficiency, and altered clinical pathology parameters. The 
    LOEL for females was determined to be 65 ppm (5.53 mg/kg/day) based on 
    reduced body weight gain and reduced food efficiency.
        c. 90-Day non-rodent (dog): Beagle dogs were dosed with pyridaben 
    at 0, 0.5, 1, 4, and 16 mg/kg/day in the diet for 13 weeks. The NOEL 
    was determined to be 1 mg/kg/day and the LOEL determined to be 4 mg/kg/
    day based on reduced body weight gain and an increase in clinical signs 
    in both sexes.
        d. 90-Day neurotoxicity (rat): Rats were dosed with pyridaben at 0, 
    30, 100, and 350 ppm in the diet for 13 weeks. The systemic NOEL was 
    determined to be 100 ppm (equivalent to 8.5 mg/kg/day in males and 9.3 
    mg/kg/day in females). The systemic LOEL was determined to be 350 ppm 
    (equivalent to 28.8 mg/kg/day in males and 31.1 mg/kg/day in females) 
    based on decreased body weight gain, decreased food consumption and 
    decreased food efficiency. No neuropathological effects were noted in 
    the study.
        4. Chronic toxicity testing. a. 1-Year non-rodent (dog): Two 
    studies were run. In the first, beagle dogs were dosed with pyridaben 
    at 0, 1, 4, 16 and 32 mg/kg/day in the diet for one year. In the 
    second, beagle dogs were dosed with pyridaben at 0 and 0.5 mg/kg/day in 
    the diet for 1 year. The NOEL was determined to be <0.5 ppm="" and="" loel="" determined="" to="" be="" 0.5="" mg/kg/day="" based="" on="" increased="" clinical="" signs="" and="" decreased="" body="" weight="" gain="" in="" both="" sexes.="" b.="" combined="" rodent="" chronic="" toxicity/carcinogenicity="" (rat):="" wistar="" rats="" were="" fed="" 0,="" 4,="" 10,="" 28="" and="" 80="" ppm="" pyridaben="" in="" the="" diet="" to="" assess="" carcinogenicity="" and="" 0,="" 4,="" 10,="" 28="" and="" 120="" ppm="" in="" the="" diet="" to="" assess="" chronic="" toxicity="" for="" 104="" weeks.="" the="" noel="" was="" determined="" to="" be="" 28="" ppm="" in="" both="" sexes="" (equivalent="" to="" 1.13="" mg/kg/day="" in="" males="" and="" 1.46="" mg/kg/day="" in="" females).="" the="" loel="" was="" determined="" to="" be="" 120="" ppm="" in="" both="" sexes="" (equivalent="" to="" 5.0="" mg/kg/day="" in="" males="" and="" 6.52="" mg/kg/day="" in="" females)="" based="" on="" decreased="" body="" weight="" gain="" in="" both="" sexes="" and="" decreased="" alanineamino="" transferase="" (alt)="" levels="" in="" males.="" pyridaben="" was="" not="" carcinogenic="" under="" the="" conditions="" of="" the="" test.="" c.="" carcinogenicity="" in="" the="" rodent="" (mouse):="" cd-1="" mice="" were="" fed="" 0,="" 2.5,="" 8.0,="" 25="" and="" 80="" ppm="" pyridaben="" in="" the="" diet="" for="" 78="" weeks.="" the="" noel="" was="" determined="" to="" be="" 25="" ppm="" in="" both="" sexes="" (equivalent="" to="" 2.78="" mg/kg/day="" in="" both="" sexes).="" the="" loel="" was="" determined="" to="" be="" 80="" ppm="" in="" both="" sexes="" (equivalent="" to="" 8.88="" mg/kg/day="" in="" males="" and="" 9.74="" mg/kg/day="" in="" females)="" based="" on="" decreased="" body="" weight="" gain,="" decreased="" food="" efficiency="" and="" changes="" in="" organ="" weights="" and="" histopathology.="" pyridaben="" was="" not="" carcinogenic="" under="" the="" conditions="" of="" the="" test.="" 5.="" developmental="" toxicity="" testing.="" a.="" developmental="" toxicity="" (rat):="" sprague-dawley="" rats="" were="" dosed="" with="" 0,="" 2.5,="" 5.7,="" 13="" and="" 30="" mg/kg/day="" pyridaben="" in="" the="" diet="" from="" days="" 6="" through="" 15="" of="" gestation.="" the="" maternal="" noel="" was="" determined="" to="" be="" 4.7="" mg/kg/day="" and="" the="" maternal="" loel="" was="" determined="" to="" be="" 13="" mg/kg/day="" based="" on="" decreased="" body="" weight="" gain,="" and="" decreased="" food="" consumption="" during="" the="" dosing="" period.="" the="" developmental="" noel="" was="" determined="" to="" be="" 13="" mg/kg/day="" and="" the="" developmental="" loel="" was="" determined="" to="" be="" 30="" mg/kg/day="" based="" on="" decreased="" fetal="" body="" weight="" and="" an="" increase="" in="" incomplete="" ossification="" in="" selected="" bones.="" b.="" developmental="" toxicity="" (rabbit):="" new="" zealand="" white="" rabbits="" were="" dosed="" with="" 0,="" 1.5,="" 5,="" and="" 15="" mg/kg/day="" pyridaben="" in="" the="" diet="" from="" days="" 6="" through="" 19="" of="" gestation.="" the="" maternal="" noel="" was="" determined="" to="" be="" 5="" mg/="" kg/day="" and="" the="" maternal="" loel="" was="" determined="" to="" be="" 15="" mg/kg/day="" based="" on="" decreased="" body="" weight="" gain,="" and="" decreased="" food="" consumption="" during="" the="" dosing="" period.="" the="" developmental="" noel="" was="" determined="" to="" be=""><15 mg/kg/="" day="" and="" the="" developmental="" loel="" was="" determined="" to="" be=""><15 mg/kg/day.="" c.="" developmental="" toxicity="" (rabbit):="" himalayan="" rabbits="" were="" dosed,="" by="" dermal="" application,="" with="" 0,="" 70,="" 170="" and="" 450="" mg/kg/day="" pyridaben="" from="" days="" 6="" through="" 19="" of="" gestation.="" the="" maternal="" systemic="" noel="" was="" determined="" to="" be="" 70="" mg/kg/day="" and="" the="" maternal="" loel="" was="" determined="" to="" be="" 170="" mg/kg/day="" based="" on="" decreased="" body="" weight="" gain,="" and="" decreased="" food="" consumption="" during="" the="" dosing="" period.="" the="" developmental="" noel="" was="" determined="" to="" be="" 170="" mg/kg/day="" and="" the="" loel="" determined="" to="" be="" 450="" [[page="" 11452]]="" mg/kg/day="" based="" on="" decreased="" ossification="" of="" the="" skull.="" 6.="" reproductive="" toxicity="" testing.="" multi-generation="" reproduction="" (rat):="" cd="" rats="" were="" dosed="" with="" 0,="" 10,="" 28="" and="" 80="" ppm="" pyridaben="" in="" the="" diet.="" the="" parental/systemic="" noel="" was="" determined="" to="" be="" 28="" ppm="" in="" both="" sexes="" (equivalent="" to="" 2.20="" mg/kg/day="" in="" males="" and="" 2.41="" mg/kg/day="" in="" females).="" the="" parental/systemic="" loel="" was="" determined="" to="" be="" 80="" ppm="" (equivalent="" to="" 6.31="" mg/kg/day="" in="" males="" and="" 7.82="" mg/kg/day="" in="" females)="" based="" on="" decreased="" body="" weight,="" decreased="" body="" weight="" gain="" and="" decreased="" food="" efficiency.="" the="" reproductive="" noel="" and="" loel="" were="" both="" determined="" to="" be="">80 ppm in males and females.
        7. Mutagenicity testing. a. Ames Testing: Negative
        b. In vitro cytogenicity (Chinese hamster lung cells): Negative
        c. In vivo micronucleus assay (mouse): Negative
        d. DNA damage/repair (E. coli): Negative
    
    E. Threshold Effects
    
        Based on the available chronic toxicity data, EPA has established 
    the Reference Dose (RfD) for pyridaben at 0.005 mg/kg/day. The RfD for 
    pyridaben is based on a 1-year feeding study in dogs with a threshold 
    LOEL of 0.5 mg/kg/day based on increased clinical signs and decreased 
    body weight gain in both sexes and an uncertainty factor of 100.
    
    F. Non-Threshold Effects
    
        Using its Guidelines for Carcinogenic Risk Assessment, EPA has 
    classified pyridaben as Group ``E '' for carcinogenicity (no evidence 
    of carcinogenicity) based on the results of carcinogenicity studies in 
    two species. There was no evidence of carcinogenicity in an 18-month 
    feeding study in mice and a 2-year feeding study in rats at the dosage 
    levels tested. The doses tested were adequate for identifying a cancer 
    risk. Thus, a cancer risk assessment is not necessary.
    
    G. Aggregate Exposure
    
        1. Dietary exposure. Since pyridaben is regulated based upon non-
    carcinogenic chronic toxicity, BASF conducted a DRES analysis based on 
    anticipated residue levels determined by EPA. The anticipated residue 
    levels were derived from the average residue levels from field trials 
    conducted at the maximum proposed use rate and minimum pre-harvest 
    interval, and a correction factor of 2.3 to account for all 
    organosoluble residues as determined by EPA. This analysis demonstrates 
    that the exposure to non-nursing infants < 1="" year,="" the="" most="" sensitive="" subpopulation="" is="" approximately="" 73.4="" percent="" of="" the="" rfd="" and="" to="" the="" general="" population="" exposure="" is="" approximately="" 11.3="" percent="" of="" the="" rfd.="" 2.="" ``other''="" exposure.="" other="" potential="" sources="" of="" exposure="" of="" the="" general="" population="" to="" residues="" of="" pesticides="" are="" residues="" in="" drinking="" water="" and="" exposure="" from="" non-occupational="" sources.="" based="" on="" the="" studies="" submitted="" to="" epa="" for="" assessment="" of="" environmental="" risk,="" basf="" does="" not="" anticipate="" exposure="" to="" residues="" of="" pyridaben="" in="" drinking="" water.="" there="" is="" no="" established="" maximum="" concentration="" level="" for="" residues="" of="" pyridaben="" in="" drinking="" water="" under="" the="" safe="" drinking="" water="" act.="" basf="" has="" not="" estimated="" non-occupational="" exposure="" for="" pyridaben="" since="" the="" current="" registration="" for="" pyridaben="" is="" limited="" to="" commercial="" greenhouse="" use="" for="" non-food="" ornamental="" plants="" and="" the="" only="" other="" domestic="" use="" will="" be="" for="" commercial="" apple,="" pear,="" citrus="" and="" almond="" production.="" the="" potential="" for="" non-occupational="" exposure="" to="" the="" general="" population="" is="" considered="" to="" be="" insignificant.="" 3.="" cumulative="" exposure.="" basf="" also="" considered="" the="" potential="" for="" cumulative="" effects="" of="" pyridaben="" and="" other="" substances="" that="" have="" a="" common="" mechanism="" of="" toxicity.="" basf="" has="" concluded="" that="" consideration="" of="" a="" common="" mechanism="" of="" toxicity="" is="" not="" appropriate="" at="" this="" time="" since="" there="" is="" no="" reliable="" information="" to="" indicate="" that="" toxic="" effects="" produced="" by="" pyridaben="" would="" be="" cumulative="" with="" those="" of="" any="" other="" chemical="" compounds.="" h.="" determination="" of="" safety="" for="" u.s.="" population="" using="" the="" exposure="" assumptions="" described="" in="" unit="" i.g.="" of="" this="" document,="" basf="" concludes="" that="" aggregate="" exposure="" to="" pyridaben="" will="" utilize="" approximately="" 11.3="" percent="" of="" the="" rfd="" for="" the="" u.s.="" population.="" epa="" generally="" has="" no="" concern="" for="" exposures="" below="" 100="" percent="" of="" the="" rfd.="" therefore,="" based="" on="" the="" completeness="" and="" reliability="" of="" the="" toxicity="" data="" and="" the="" conservative="" exposure="" assessment,="" basf="" concludes="" that="" there="" is="" a="" reasonable="" certanity="" that="" no="" harm="" will="" result="" from="" aggregate="" exposure="" to="" residues="" of="" pyridaben,="" including="" all="" anticipated="" dietary="" exposure="" and="" all="" other="" non-occupational="" exposures.="" i.="" determination="" of="" safety="" for="" infants="" and="" children="" developmental="" toxicity="" (delayed="" ossification)="" was="" observed="" in="" developmental="" toxicity="" studies="" using="" rats="" and="" rabbits.="" the="" noel's="" for="" developmental="" effects="" were="" established="" at="" 13="" mg/kg/day="" in="" the="" rat="" study="" and="" 15="" mg/kg/day="" in="" the="" rabbit="" study.="" the="" developmental="" effect="" observed="" in="" these="" studies="" is="" believed="" to="" be="" a="" secondary="" effect="" resulting="" from="" maternal="" stress="" (decreased="" body="" weight="" gain="" and="" food="" consumption).="" in="" a="" 2-generation="" reproduction="" study="" in="" rats,="" pups="" from="" the="" high="" dose="" group,="" which="" were="" fed="" diets="" containing="" 80="" ppm="" (equivalent="" to="" 6.31="" and="" 7.82="" mg/kg/day="" in="" male="" and="" females,="" respectively)="" gained="" less="" weight="" beginning="" on="" lactation="" day="" 14.="" parental/systemic="" toxicity="" including="" decreased="" body="" weights,="" body="" weight="" gains="" and="" food="" efficiency="" in="" males,="" and="" slightly="" decreased="" body="" weights="" and="" body="" weight="" gains="" in="" females="" during="" lactation="" was="" also="" observed="" in="" the="" high="" dose="" group.="" the="" results="" of="" this="" study="" indicate="" that="" the="" loss="" in="" weight="" gain="" in="" pups="" from="" the="" high="" dose="" group="" was="" affected="" by="" nursing.="" no="" clear="" scientific="" consensus="" yet="" exists="" to="" determine="" the="" most="" appropriate="" endpoints="" for="" assessing="" risk="" in="" children.="" however,="" in="" consideration="" of="" the="" data="" that="" show="" both="" developmental="" and="" reproductive="" toxicity="" were="" effects="" secondary="" to="" parental="" toxicity,="" basf="" believes="" that="" the="" established="" rfd="" of="" 0.005="" mg/kg/day="" is="" the="" most="" conservative="" approach="" for="" assessing="" risk="" in="" children.="" using="" the="" exposure="" assumptions="" described="" in="" unit="" i.g.="" of="" this="" document,="" basf="" has="" concluded="" that="" the="" percent="" of="" the="" rfd="" that="" will="" be="" utilized="" by="" aggregate="" exposure="" to="" residues="" of="" pyridaben="" from="" the="" proposed="" use="" in="" citrus,="" apples,="" pears,="" almonds,="" peaches,="" plums,="" and="" grapes="" is="" approximately="" 73.4="" percent="" for="" non-nursing="" infants=""><1 year),="" the="" most="" sensitive="" sub-population.="" based="" on="" the="" completeness="" and="" reliability="" of="" the="" toxicity="" data="" and="" the="" conservative="" exposure="" assessment,="" basf="" concludes="" that="" there="" is="" a="" reasonable="" certainty="" that="" no="" harm="" will="" result="" in="" infants="" and="" children="" from="" aggregate="" exposure="" to="" the="" residues="" of="" pyridaben,="" including="" all="" anticipated="" dietary="" exposure="" and="" all="" other="" non-occupational="" exposures.="" j.="" other="" considerations="" the="" qualitative="" nature="" of="" the="" residues="" in="" plants="" and="" animals="" is="" adequately="" understood.="" residues="" of="" the="" parent="" molecule,="" pyridaben="" are="" the="" only="" residues="" of="" concern.="" residues="" of="" pyridaben="" do="" not="" concentrate="" in="" the="" processed="" commodities="" apple="" and="" citrus="" juice.="" there="" is="" a="" practical="" analytical="" method="" for="" detecting="" and="" measuring="" levels="" of="" pyridaben="" in="" or="" on="" food="" with="" a="" limit="" of="" detection="" that="" allows="" monitoring="" of="" food="" with="" residues="" at="" or="" above="" the="" levels="" set="" in="" these="" tolerances.="" [[page="" 11453]]="" k.="" international="" tolerances="" a="" maximum="" residue="" level="" has="" not="" been="" established="" for="" pyridaben="" by="" the="" codex="" alimentarius="" commission.="" ii.="" public="" record="" epa="" invites="" interested="" persons="" to="" submit="" comments="" on="" this="" notice="" of="" filing.="" comments="" must="" bear="" a="" notification="" indicating="" the="" docket="" control="" number="" [pf-721].="" all="" written="" comments="" filed="" in="" response="" to="" this="" petition="" will="" be="" available,="" in="" the="" public="" response="" and="" program="" resources="" branch,="" at="" the="" address="" given="" above="" from="" 8:30="" a.m.="" to="" 4="" p.m.,="" monday="" through="" friday,="" except="" legal="" holidays.="" a="" record="" has="" been="" established="" for="" this="" notice="" under="" docket="" control="" number="" [pf-721]="" (including="" comments="" and="" data="" submitted="" electronically="" as="" described="" below).="" a="" public="" version="" of="" this="" record,="" including="" printed,="" paper="" versions="" of="" electronic="" comments,="" which="" does="" not="" include="" any="" information="" claimed="" as="" cbi,="" is="" available="" for="" inspection="" from="" 8:30="" a.m.="" to="" 4="" p.m.,="" monday="" through="" friday,="" excluding="" legal="" holidays.="" the="" public="" record="" is="" located="" in="" rm.="" 1132="" of="" the="" public="" response="" and="" program="" resources="" branch,="" field="" operations="" division="" (7506c),="" office="" of="" pesticide="" programs,="" environmental="" protection="" agency,="" crystal="" mall="" #2,="" 1921="" jefferson="" davis="" highway,="" arlington,="" va.="" electronic="" comments="" can="" be="" sent="" directly="" to="" epa="" at:="">opp-docket@epamail.epa.gov.
    
    
        Electronic comments must be submitted as an ASCII file avoiding the 
    use of special characters and any form of encryption. The official 
    record for this notice, as well as the public version, as described 
    above, will be kept in paper form. Accordingly, EPA will transfer all 
    comments received electronically into printed, paper form as they are 
    received and will place the paper copies in the official record which 
    will also include all comments submitted directly in writing. The 
    official record is the paper record maintained at the address in 
    ``ADDRESSES'' at the beginning of this document.
    
        Authority: 21 U.S.C. 346a.
    
    List of Subjects
    
        Environmental protection, Administrative practice and procedure, 
    Agricultural commodities, Pesticides and pests, Reporting and 
    recordkeeping requirements.
    
        Dated: March 6, 1997.
    
    Peter Caulkins,
    Acting Director, Registration Division, Office of Pesticide Programs.
    
    [FR Doc. 97-6209 Filed 3-11-97; 8:45 am]
    BILLING CODE 6560-50-F
    
    
    

Document Information

Published:
03/12/1997
Department:
Environmental Protection Agency
Entry Type:
Notice
Action:
Notice of filing.
Document Number:
97-6209
Dates:
Comments, identified by the docket control number [PF-721], must be received on or before April 11, 1997.
Pages:
11450-11453 (4 pages)
Docket Numbers:
PF-721, FRL-5592-7
PDF File:
97-6209.pdf