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Index of Cleared Science Reviews for Methyl parathion (Pc Code 053501)
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August 25, 1972. Memorandum. 7 Page(s).
George Whitmore. Toxicology Branch.
Parathion - Methyl Parathion Residue Tolerance Requests.
Tox Review 000169.
Document (PDF) (416 KB PDF).
September 01, 1978. Summary. 2 Page(s).
Roger Gardner. Toxicology Branch.
Methyl Parathion. Tox review 000168.
Document (PDF) (117 KB PDF).
March 31, 1982. DER. 10 Page(s).
Gerald Marquardt. Toxicology Branch.
Methyl Parathion (MP); Feeding Study in Dogs.
Tox Review Nos. 005588 & 001882.
Document (PDF) (449 KB PDF).
March 31, 1982. DER. 13 Page(s).
Gerald Marquardt. Toxicology Branch.
Methyl Parathion (MP); Three Month Feeding Study in Rats.
Tox Review Nos. 005095 & 001882.
Document (PDF) (710 KB PDF).
May 18, 1982. Memorandum. 30 Page(s).
Christine Chaisson. Toxicology Branch.
Data Reviews - Methyl Parathion (524-68, 524-128, 524-144).
Tox Reviews 001882.
Document (PDF) (1652 KB PDF).
August 16, 1983. DER. 5 Page(s).
Daniel Rieder. Ecological Effects Branch.
Aquatic Invertebrate Chronic. A. Species : Daphnia magna. B. Material : - Penncap
-M (21.2% Methyl Parathion) - Methyl parathion as technical grade (75.1% pure).
MRID No. 00128790.
Document (PDF) (115 KB PDF).
August 17, 1983. DER. 8 Page(s).
Daniel Rieder. Ecological Effects Branch.
Chronic Fish Study. A. Species: Rainbow Trout B. Material: Penncap M
(21.2% pure methyl parathion) Methyl parathion technical (75.1% pure).
MRID No. 00128791.
Document (PDF) (197 KB PDF).
September 04, 1984. Memorandum. 21 Page(s).
Robert Zendzian. Toxicology Branch.
Ethyl Parathion and Methyl Parathion Toxic Effects on the
Retina of Rats in Two-Year Feeding Studies. Tox Review 003949.
Document (PDF) (1306 KB PDF).
August 28, 1985. DER. 5 Page(s).
J. Blake. Dynamac Corp.
GUIDELINE 40 CFR 165-0. MRID No. 00066341. Acephate, aldicarb, carbophenothion,
DEF, EPN, ethoprop, methyl parathion, and phorate: their acute and chronic toxicity,
bioconcentration potential, and persistence as related to marine environments.
Document (PDF) (129 KB PDF).
November 05, 1985. DER. 5 Page(s).
Alan Katz. Toxicology Branch.
A Two Generation Reproduction Study of Methyl Parathion in Rats.
Tox Review No. 005588.
Document (PDF) (339 KB PDF).
November 07, 1985. DER. 6 Page(s).
Alan Katz. Toxicology Branch.
Methyl Parathion - One Year Dog Study. Tox Review No. 005588.
Document (PDF) (456 KB PDF).
December 10, 1985. DER. 6 Page(s).
Alan Katz. Toxicology Branch.
Parathion-methyl: Evaluation for Embryotoxic & Teratogenic Effects
in Rats Following Oral Administration. Tox Review No. 005588.
Document (PDF) (354 KB PDF).
March 19, 1986. Memorandum. 33 Page(s).
Alan Katz. Toxicology Branch.
Methyl Parathion Data Call-In: Rat/Rabbit Teratology; Rat Chronic Feeding Study;
Accession Nos. 259403, -04, -05, -12, -13, and -14; Record No. 160444;
EPA I.D. No. 4787-4; Action Code No. 600; Caswell No. 372. Tox review 004997.
Document (PDF) (2035 KB PDF).
June 03, 1986. Memorandum. 5 Page(s).
Susan Hummel. Residue Chemistry Branch.
Parathion - Cheminova Response to 3(c)(2)(B) Letter of 1/28/86.
[No. Accession Number, RCB Number 1014].
Document (PDF) (86 KB PDF).
June 03, 1986. Memorandum. 6 Page(s).
Susan Hummel. Residue Chemistry Branch.
Parathion - Monsanto Response to 3(c)(2)(B) Letter of 1/28/86 Extension Request
[No Accession Number, RCB No. 944].
Document (PDF) (101 KB PDF).
November 13, 1987. Memorandum. 10 Page(s).
Clark Swentzel. Toxicology Branch.
Methyl Parathion (E 605 Methyl). Chronic Toxicological Study on Rats
(2-Year Feeding Study). Addendum to Report Nos. 9889 and 12559.
EPA ID No. 4787-4. Project 7-0839. Caswell No. 372. Tox review 006463.
Document (PDF) (538 KB PDF).
February 11, 1988. Memorandum. 7 Page(s).
Sami Malak. Residue Chemistry Branch.
EPA Reg. No. 4787-4. Methyl parathion Product Chemistry in Response to the
Methyl Parathion Registration Standard Data Gaps. MRID No. 404066-01.
Manufacturing Process information removed from pages 3 & 7.
Document (PDF) (339 KB PDF).
March 25, 1988. Memorandum. 10 Page(s).
Gobind Makhijani. Residue Chemistry Branch.
Methyl Parathion MP - EPA Reg No. 4787-4. Chemnova - Response to the Product
Chemistry Chapter. MRID No. 404824-01.
Manufacturing Process information removed from pages 7-10.
Document (PDF) (300 KB PDF).
May 25, 1988. Memorandum. 2 Page(s).
Gobind Makhijani. Residue Chemistry Branch.
Methyl Parathion MP - EPA Reg. No. 4787-4 - Cheminova Response to the Product
Chemistry Chapter. MRID No. 406015-01.
Document (PDF) (74 KB PDF).
August 03, 1988. Memorandum. 1 Page(s).
Gobind Makhijani. Residue Chemistry Branch.
Methyl Parathion-Technical. EPA Reg. No. 4787-4 - Cheminova Response to the
Product Chemistry Chapter.
Document (PDF) (55 KB PDF).
December 19, 1988. DER. 9 Page(s).
Michael Camardese. Ecological Effects Branch.
Fish Early Life-stage. Species Tested: Fathead minnow (Pimephales promelas.).
Document (PDF) (310 KB PDF).
April 28, 1989. Memorandum. 11 Page(s).
K. Clark Swentzel. Toxicology Branch.
Methyl Parathion: Absorption, Distribution, Excretion and Metabolism in Rats.
MRID 410014-07. Tox review 007153.
Document (PDF) (743 KB PDF).
June 28, 1989. Memorandum. 8 Page(s).
Clark Swentzel. Toxicology Branch II.
Methyl parathion: Supplemental data for a developmental toxicity study in rabbits.
MRID No. 41046101. Tox Review No. 007270.
Registration Data information removed from page 6-7.
Document (PDF) (1251 KB PDF).
November 17, 1989. Memorandum. 8 Page(s).
Clark Swentzel. Toxicology Branch.
Methyl Parathion: Supplemental Data for a Developmental Toxicity Study in Rabbits;
Report No. 12907, September 4, 1987; Accession Nos. 259403 through 259405.
Pages 5-8 removed, registrant data. Tox review 007614.
Document (PDF) (287 KB PDF).
June 20, 1990. Memorandum. 4 Page(s).
Stephen Funk. Dietary Exposure Branch.
Product Chemistry Data Review for Technical Methyl Parathion to Determine
the Potential for Halogenated Dibenzo-p-Dioxin/ Dibenzofuran Formation.
I.D. No. 4787-4. Manufacturing process info on pages 2 & 3 not included.
MRIDs 40482401 & 40601501.
Document (PDF) (846 KB PDF).
September 25, 1990. Memorandum. 19 Page(s).
Clark Swentzel. Toxicology Branch.
Methyl Parathion - 13-Week Feeding Study in Dogs. MRID 413354-01.
Tox review 008106.
Document (PDF) (1522 KB PDF).
October 05, 1990. Memorandum. 41 Page(s).
David Liem. Toxicology Branch II.
Review of Developmental Toxicity Evaluation of E-120 Technical
(Methyl-parathion) Administered by Gavage to Crl:CDrBR rats.
MRID No. 411361-01. Tox Review No. 008118.
Registration Data information removed from pages 17-41.
Document (PDF) (4084 KB PDF).
January 24, 1991. Memorandum. 9 Page(s).
Linda Taylor. Toxicology Branch.
Methyl Parathion - acute Delayed Neurotoxicity Study
- Response to Registration Standard. Tox review 008236.
Document (PDF) (458 KB PDF).
April 23, 1991. DER. 31 Page(s).
Mark Roberts. Ecological Effects Branch.
Freshwater invertebrate chronic test. Species Tested: Daphnia magna.
Accession # 415068-01. Pages 8-31 removed, registration data.
Document (PDF) (456 KB PDF).
September 23, 1991. Memorandum. 10 Page(s).
Ian Blackwell. Registration Support Branch.
EPA Reg. No./File Symbol 4581-292 / Penncap-M Microencapsulated Pesticide
Acute oral toxicity... MRID 418056-01, 460089-018 through -020.
Document (PDF) (409 KB PDF).
February 18, 1992. Memorandum. 13 Page(s).
Stephen Schaible. Science Analysis & Coordination Branch.
RfD Exceeders Project: DRES Analyses Using Percent Crop Treated
Data for Endosulfan, Methyl Parathion, Naled, and Parathion.
Document (PDF) (881 KB PDF).
April 28, 1992. Memorandum. 15 Page(s).
Stephen Schaible. Science Analysis & Coordination Branch.
RfD Exceeders Project: Dietary Exposure Analysis for Methyl Parathion.
Document (PDF) (1304 KB PDF).
June 02, 1992. Memorandum. 9 Page(s).
David Liem. Toxicology Branch II.
Review of Supplementary Data to support a Developmental Toxicity Study
in Rats with Methyl-parathion that was Classified as Core-Supplementary.
MRID Nos. 422356-01 & 411361-01. Tox Review No. 009526.
Pages 4-9 removed, registration data.
Document (PDF) (1109 KB PDF).
August 02, 1992. Memorandum. 19 Page(s).
Clark Swentzel. Toxicology Branch II.
Methyl Parathion - 21-Day Dermal Toxicity Study in Rabbits. MRID No. 422637-01.
Tox Review No. 009651. Pages 11-19 removed, registration data.
Document (PDF) (1356 KB PDF).
October 09, 1992. Memorandum. 19 Page(s).
Clark Swentzel. Toxicology Branch II.
Methyl Parathion - Mouse Carcinogenicity Study. MRID No. 422164-01.
Tox Review No. 009790.
Document (PDF) (2291 KB PDF).
November 24, 1992. Memorandum. 263 Page(s).
E. Zager. Chemistry Branch II.
Methyl Parathion Product and Residue Chemistry Reregistration Standard Updates.
(...Barcode No. 's D160929,D163203 and D160581.). Pages 35-39 removed, inert
ingredients, quality control processes, and manufacturing process information.
Document (PDF) (18901 KB PDF).
June 14, 1993. Memorandum. 47 Page(s).
K. Clark Swentzel. Toxicology Branch II.
Methyl Parathion - One-Year Study in Rats with Emphasis on Ocular & Nerve Effects.
Tox Review No. 010333.
Document (PDF) (2729 KB PDF).
January 21, 1994. Memorandum. 12 Page(s).
Lucy Markarian. Registration Support Branch.
EPA File Symbol/EPA Reg. No.: 4581-292 Acute dermal, eye irritation...
MRID 425849-01, 425848-01, 425849-02, 425849-04.
Document (PDF) (635 KB PDF).
April 25, 1994. Memorandum. 3 Page(s).
Ian Blackwell. Registration Support Branch.
EPA Reg. No./EPA File Symbol: 4581-292 / Penncap M 'Precautionary Review Section
denies the waiver for the acute inhalation toxicity study of reg. no. 4581-292'.
Document (PDF) (168 KB PDF).
August 24, 1994. Memorandum. 14 Page(s).
Robert Fricke. Toxicology Branch II.
Methyl Parathion - 6(A)(2): Acute Neurotoxicity Study - Rats; (81-9).
MRID No.: 4432544-01. DP Barcode: D205593. Tox Review No. 011190.
Document (PDF) (1186 KB PDF).
October 06, 1994. DER. 27 Pages.
Dennis J. McLane. Ecological Effects Branch.
72-4(B) FRESHWATER FLOW-THROUGH INVERTEBRATE LIFE CYCLE
TEST. Chronic Toxicity of Methyl Parathion to Daphnia magna Under Flow-Through
Test Conditions. MRID No. : 43035401.
Document (PDF) (990 KB PDF).
October 10, 1996. Memorandum. 14 Page(s).
Robert Fricke. Toxicology Branch II.
Methyl Parathion - Review of Subchronic Neurotoxicity Screening Batteries
in Rats [OPPTS 870.6200, 82-7] Tox Review No. 012073. DP Barcode: D223087.
MRID No.: 434905-01.
Document (PDF) (948 KB PDF).
October 15, 1996. Memorandum. 30 Page(s).
Brian Steinwand. Science Analysis Branch.
Dietary Exposure Analysis for Synar List Chemical (Methyl Parathion).
Document (PDF) (2215 KB PDF).
December 01, 1997. Memorandum. 21 Page(s).
George Ghali. Health Effects Division.
Methyl Parathion (O,O-dimethyl O-p-nitrophenyl phosphorothioate:
Hazard Identification Committee Report. Tox review 012406.
Document (PDF) (1552 KB PDF).
February 05, 1998. Memorandum. 13 Page(s).
Jerome Blondell. Chemistry & Exposure Branch 2.
Review of Methyl Parathion Incident Reports.
DP Barcode D242333, Chemical #053501, Reregistration Case#0153.
Document (PDF) (887 KB PDF).
February 17, 1998. DER. 8 Pages.
Max Feken. Golder Associates Inc. for EEB.
AQUATIC INVERTEBRATE LIFE CYCLE TEST GUIDELINE 72-4(B).
Chronic Toxicity of Methyl parathion to Daphnia magna:
Effects on Siurvival, Reproduction, and Growth.
MRID No. 443717-16.
Document (PDF) (483 KB PDF).
March 02, 1998. Memorandum. 21 Page(s).
Jonathan Becker. Reregistration Branch II.
Occupational and Residential Exposure Assessment and Recommendations
for the Reregistration Eligibility Decision Document for Methyl Parathion.
DB Barcode: D239744.
Document (PDF) (1387 KB PDF).
March 10, 1998. Memorandum. 21 Page(s).
Kathleen Raffaele. Toxicology Branch.
Chemical: Methyl Parathion. Case # 0153. Pesticide Chemical Code 053501.
CAS Reg No. 298-00-0. DP BARCODE: D243905. Attached is Toxicology Chapter
for the Methyl Parathion RED. TXR No. 012524.
Document (PDF) (1628 KB PDF).
May 21, 1998. Memorandum. 3 Page(s).
Bonnie Cropp-Kohlligian. Reregistration Branch II.
Methyl Parathion (053501). The Outcome of the HED Metabolism Assessment
Review Committee Meeting Held on March 11, 1998. DP Barcode: D245127.
Document (PDF) (170 KB PDF).
June 11, 1998. Memorandum. 74 Page(s).
Bonnie Cropp-Kohlligian. Reregistration Branch II.
Residue Chemistry Chapter for the Methyl Parathion Reregistration Eligibility
Decision (RED) Document. DP Barcode No.: D239825. Reregistration Case No.: 0153.
TXR No. 012848.
Document (PDF) (4775 KB PDF).
September 01, 1998. Memorandum. 24 Page(s).
Diana Locke. Reregistration Branch II.
METHYL PARATHION. The HED Chapter of the Reregistration Eligibilty
Decision Document (RED). PC 053501, Case # 818931. Tox review 012848.
Document (PDF) (1669 KB PDF).
October 27, 1998. Memorandum. 136 Page(s).
Kevin Costello. Environmental Risk Branch I.
EFED RED Chapter for Methyl Parathion. Case No. 2345. DP Barcode: D237285.
Document (PDF) (7472 KB PDF).
December 07, 1998. Memorandum. 7 Page(s).
Diana Locke. Health Effects Division.
ERROR CORRECTION. Response to Comments on EPA's Methyl Parathion Draft Health
Effects Division Chapter of the Reregistration Eligibility Decision Document.
PC Code: 053501, Case # 818931.
Document (PDF) (460 KB PDF).
December 16, 1998. Memorandum. 4 Page(s).
Kevin Costello. Environmental Risk Branch.
Response to Comments Detailing Errors in the Draft EFED RED Chapter for Methyl Parathion.
Document (PDF) (176 KB PDF).
July 30, 1999. Memorandum. 82 Page(s).
Kevin Costello. Environmental Risk Branch.
Final EFED RED Chapter for Methyl Parathion.
Document (PDF) (5405 KB PDF).
August 02, 1999. Memorandum. 372 Page(s).
Diana Locke. Health Effects Division.
Human Health Risk Assessment, Methyl Parathion.
Document (PDF) (25612 KB PDF).
September 26, 2005. Memorandum. 47 Pages.
Robert J. Mitkus. Registration Action Branch 1.
METHYL PARATHION - Review of Developmental Neurotoxicity Study in Rats
(MRID 45630301). DP Barcode #: D281892. TXR# 0050608.
Document (PDF) (1918 KB PDF).
February 18, 2009. DER. 31 Pages.
Edward Odenkirchen. ERB I.
Data Evaluation Report on the Toxicity of Methyl Parathion Technical to Sheepshead
Minnow (Cyprinodon variegatus), Early Life Cycle. DP Barcode D326572 and 326467.
MRID No. 467442-01.
Document (PDF) (1429 KB PDF).