Methyl parathion health and safety guide.
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Methyl parathion health and safety guide.

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Published by World Health Organization for the International Programme on Chemical Safety in Geneva .
Written in English


  • Organophosphorus compounds -- Toxicology.,
  • Pesticides -- Toxicology.,
  • Pesticides -- Physiological effect.,
  • Pesticides -- Environmental aspects.,
  • Organophosphorus compounds -- Safety measures.,
  • Methyl parathion.

Book details:

Edition Notes

Other titlesMethyl parathion.
SeriesHealth and safety guide -- no. 75.
ContributionsInternational Program on Chemical Safety.
The Physical Object
Pagination41 p. :
Number of Pages41
ID Numbers
Open LibraryOL14692706M
ISBN 109241510757

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8. U.S. Environmental Protection Agency. Health Effects Assessment for Parathion. EPA/// Environmental Criteria and Assessment Office, Office of Health and Environmental Assessment, Office of Research and Development, Cincinnati, OH. 9. National Institute for Occupational Safety and Health (NIOSH). Pocket Guide to Chemical Hazards.   Methyl parathion’s acute oral LD(50) for male rats is almost identical to that of parathion, (i.e., 10 to 25 mg/kg); for female rats, the LD(50) is 24 mg/kg, or approximately one-sixth that of parathion. By the dermal route, methyl parathion is much less toxic than parathion, with an LD(50) of 67 mg/kg in rats of both sexes (Hayes /Ex. 1. Parathion methyl, or methyl parathion, is an organophosphate insecticide, possessing an organothiophosphate group. It is structurally very similar to parathion-ethyl. It is not allowed for sale and import in nearly all countries around the world, while a few allow it under subject to specified conditions only. 4 Classifications and al formula: (CH₃O)₂P(S)OC₆H₄NO₂. Methyl parathion (CAS ) US. NIOSH: Pocket Guide to Chemical Hazards Material Type Value Methyl parathion (CAS TWA mg/m3 ) Biological limit values No biological exposure limits noted for the ingredient(s). Exposure guidelines US - California OELs: Skin designation Methyl parathion (CAS ) Can be absorbed through the Size: KB.

Parathion, also called parathion-ethyl or diethyl parathion and locally [clarification needed] known as "Folidol", is an organophosphate insecticide and was originally developed by IG Farben in the s. It is highly toxic to non-target organisms, including humans, so its use has been banned or restricted in most ance: White crystals (pure form). Parathion is a deep brown to yellow liquid with a faint odor of garlic. It is an organic phosphate insecticide which acts as an inhibitor of cholinesterase, and as such it is highly toxic by all routes of exposure. It may be found as a liquid or as a dry mixture where the liquid is absorbed onto a dry carrier. Series: Environmental Health Criteria (Book ) Paperback: pages Publisher: World Health Organisation (January 1, ) Language: English ISBN ISBN Product Dimensions: 6 x x 9 inches Shipping Weight: ounces Customer Reviews: Be the first to Price: $ The EPA has established a Lifetime Health Advisory (LHA) level of 60 micrograms per liter (ug/l) for 4-nitrophenol, a breakdown product of methyl parathion, in drinking water. This means that EPA believes that water containing 4-nitrophenol at or below this level is acceptable for drinking every day over the course of one's lifetime, and does.

Methyl parathion is a white crystalline solid which is often dissolved in a liquid solvent carrier. The commercial product is a tan liquid (xylene solution) with a pungent odor. Excerpt from ERG Guide [Flammable Liquids - Toxic]: , and the U.S. Occupational Safety and Health Administration's Process Safety Management of Highly. September – Exposure of Greenhouse Workers to Encapsulated Methyl Parathion (Penncap-M) Being Used on Chrysanthymums in Santa Clara and San Mateo Counties in (PDF) May – Occupational Exposure Incidents in California in Involving Methyl Parathion (PDF) July – Worker Safety Study on Methyl Parathion on Grapes (PDF). Risk Characterization Documents (RCDs) estimate the nature and likelihood of adverse health effects in humans who may be exposed to pesticides. February – Toxic Air Contaminant List Recommendation (PDF) June – Toxic Air Contaminant Assessment (PDF) Other Documents. February – Aerial Movement and Deposition of Diazinon, Chlorpyrifos, and Ethyl Parathion. NRA Review Report on Parathion-methyl – Occupational Health and Safety Assessment Not to used for commercial or registration purposes without prior consent of the owner of the cited information 4 In a rat acute neurotoxicity study, a No-Observable-Effect-Level (NOEL) of mg/kg was determined for depression of cholinesterase (ChE), with acute.