Where It Comes From
Diazinon was developed in the 1950s as an organophosphate insecticide for control of a broad spectrum of insect pests in agriculture, horticulture, and household applications [1]. The compound was rapidly adopted globally due to its effectiveness against many pest species. Diazinon became one of the most widely used insecticides worldwide, with extensive use in agriculture and home pest control. Environmental concerns emerged in the 1990s regarding water contamination and effects on aquatic organisms. Restrictions in developed countries led to phase-outs beginning in the 2000s, though diazinon continues use in agricultural contexts in some regions [2]. The compound exemplifies the historical reliance on organophosphate pesticides before broader environmental and health concerns led to restrictions [3].
How You Are Exposed
Agricultural pesticide applicators and farmworkers face occupational exposure to diazinon through inhalation and dermal contact. Pest control professionals using diazinon encounter chronic exposure. Consumers of crops treated with diazinon experience dietary residue exposure. Environmental exposure through contaminated water affects aquatic communities.
Why It Matters
Diazinon is an organophosphate insecticide that inhibits acetylcholinesterase, causing neurotoxic effects. Occupational exposure causes cholinergic symptoms at significant doses. Chronic low-level exposure may cause neurological effects and reduced enzyme function. Animal studies show reproductive and developmental effects at elevated doses. Environmental water contamination affects aquatic organisms.
Who Is at Risk
Agricultural pesticide applicators face occupational exposure risk. Farm workers and pest control professionals encounter chronic exposure. Consumers of treated crops experience dietary exposure. Aquatic organisms in contaminated waters face severe exposure.
How to Lower Your Exposure
References
- [1][1] Karalliedde, L., & Senanayake, N. (1989). 'Organophosphate and Carbamate Poisoning.' British Medical Journal, 298(6662), 109-110.
- [2][2] Baker, S. E., et al. (2004). 'Diazinon in Residential Environments.' Environmental Health Perspectives, 112(3), 311-318.
- [3][3] EPA (2006). 'Diazinon—Pesticide Fact Sheet.' Environmental Protection Agency.
Recovery & Clinical Information
Body Half-Life
Diazinon is rapidly absorbed through the gastrointestinal tract, skin, and respiratory system. Hepatic metabolism produces metabolites. The elimination half-life is approximately 12-48 hours. Bioaccumulation potential is low due to rapid metabolism.
Testing & Biomarkers
Occupational exposure is detected through air and dermal monitoring. Plasma and red blood cell cholinesterase testing indicates exposure and biological effect. Urine metabolites confirm exposure. Water testing detects environmental contamination.
Interventions
Acute diazinon poisoning treatment includes atropine and pralidoxime for cholinergic effects. Supportive care addresses specific symptoms. Gastrointestinal decontamination reduces systemic absorption. Medical monitoring continues until enzyme function recovers.
Recovery Timeline
Acute symptoms develop within 30 minutes to 2 hours of significant exposure. Peak effects develop over 2-4 hours. Enzyme function gradually recovers over 24-48 hours with treatment. Recovery from acute exposure is usually complete within 1-2 weeks.
Recovery References
- [1][1] Karalliedde, L., & Senanayake, N. (1989). 'Organophosphate and Carbamate Poisoning.' British Medical Journal, 298(6662), 109-110.
- [2][2] Baker, S. E., et al. (2004). 'Diazinon in Residential Environments.' Environmental Health Perspectives, 112(3), 311-318.
- [3][3] EPA (2006). 'Diazinon—Pesticide Fact Sheet.' Environmental Protection Agency.