https://www.cdc.gov/niosh/chemicals/pel88/pell-pages/298-00.html
1988 OSHA PEL Project - Methyl Parathion | NIOSH | CDC
osha pelmethyl parathion1988projectniosh
https://www.usgs.gov/publications/acute-responses-american-kestrels-methyl-parathion-and-fenvalerate
Acute responses of American kestrels to methyl parathion and fenvalerate | U.S. Geological Survey
Physiological and toxicological effects of p.o, methyl parathion (0.375-3.0 mg/kg) or fenvalerate (1000-4000 mg/kg) were examined over a 10 h period in...
https://www.fda.gov/regulatory-information/search-fda-guidance-documents/guidance-industry-channels-trade-policy-commodities-methyl-parathion-residues
Guidance for Industry: Channels of Trade Policy for Commodities with Methyl Parathion Residues | FDA
This final guidance applies to firms in the food production and processing industries who handlefood products that may contain residues of the pesticide...