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DOH Pesticide Illness Data

Data from pesticide illness investigations

Data analysis

Limitations of Washington's surveillance data

Cholinesterase monitoring in Washington

Articles and reports with Washington data

Pesticide illness monitoring in other states

Other pesticide-related health research in the pacific northwest

 DOH Data from pesticide illness investigations

The Washington State Department of Health (DOH) investigates reports of acute adverse health effects resulting from exposure to pesticides.

Each year, 200-300 suspected pesticide poisonings are reported to the DOH Pesticides Program under the Notifiable Conditions Law.

The DOH Pesticide Program uses information it collects during case investigations to:

  • describe the nature and frequency of reported pesticide illnesses
  • understand risk factors associated with reported pesticide illnesses, and
  • develop key prevention messages.

For more information about how DOH investigates and classifies cases, see Pesticide Illness Investigations.

Annual Data

DOH pesticide illness data is published jointly with pesticide incident data from WA Poison Center and the State Departments of Agriculture, Labor and Industries, and Ecology in the annual Pesticide Incident Reporting and Tracking (PIRT) Panel Report .

Monthly data

A monthly tally of DOH cases opened for investigation is available in the bimonthly newsletter EpiTrends. EpiTrends contains monthly surveillance data on reportable conditions by county.

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Cholinesterase monitoring in Washington

The Washington Department of Labor and Industries (L&I) adopted a regulation that requires agricultural employers to provide blood testing for workers who handle certain types of pesticides for 30 or more hours in any consecutive 30-day period. The rule became effective Feb. 1, 2004.

Cholinesterase (acetyl cholinesterase) is an enzyme that removes the chemical neurotransmitter acetylcholine from the junctions between nerves cells. Cholinesterase serves as the nervous system’s “off switch” and is essential to the normal function of the nervous system.

Exposure to organophosphate or N-methyl-carbamate pesticides may lower the level of available cholinesterase. Although depressed (lower than normal) cholinesterase doesn’t mean that the worker is sick, it is an important health indicator of over-exposure to these types of pesticides.

The Washington program is unique because it provides for centralized storage and analysis of all monitoring results. The results are scanned for depressions by DOH and significant depressions are forwarded to L&I for follow-up with employers. When significant cholinesterase depression is identified, employers are required to evaluate their pesticide worker protection program and make corrections to prevent further over-exposure.

Results from the cholinesterase monitoring of pesticide handlers program are available in the Scientific Committee (SAC) Reports to the Department of Labor and Industries:

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Articles and reports with Washington data

  • Fumigant-related illnesses: Washington State's five-year experience.
    Burgess JL, Morrissey B, Keifer MC, Robertson WO.  J Toxicol Clin Toxicol. 2000; 38 (1): 7-14.

  • Washington's experience and recommendations re: Anticoagulant rodenticides. Morrissey B, Burgess JL, Robertson WO.  Vet Hum Toxicol. 1995 Aug; 37(4): 362-3. No Abstract. Abstract or Full Text.  

  • Acute Organophosphate Poisonings in Washington Apple Orchards (in PDF - 2 MB). Skeers VM, Morrissey B.  J. Environ. Health 1995; 58 (2): 18-23.  Posted, with permission, from the Journal of Environmental Health, a publication of the National Environmental Health Association (www.neha.org). Copyright 1995. 

  • The Morbidity and Mortality Weekly Report (MMWR) is a CDC weekly scientific publication containing data and reports on specific health and safety topics. The following MMWR pesticide-related articles which contain Washington data are available.

o    Unintentional Topical Lindane Ingestions --- United States, 1998--2003   Published June 3, 2005.

o    Surveillance for Acute Insecticide-Related Illness Associated with Mosquito-Control Efforts --- Nine States, 1999-2002. Published July 11, 2003

o    Illnesses Associated With Use of Automatic Insecticide Dispenser Units --- Selected States and United States, 1986-1999. Published June 9, 2000.

o    Illnesses Associated with Occupational Use of Flea-Control Products --- California, Texas, and Washington, 1989-1997. Published June 4, 1999.

o   Occupational Pesticide Poisoning in Apple Orchards, Washington, 1993.  Published January 7, 1994.

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 Pesticide-related health research in the Pacific Northwest

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  Pesticide illness monitoring in other states

Washington participates in the Sentinel Event Notification System for Occupational Risk (SENSOR).  The SENSOR-Pesticides Program is coordinated by the National Institute of Occupational Safety and Health (NIOSH).  Washington provides pesticide illness data to SENSOR for the development of a national aggregated database of occupational pesticide-related illness and injury cases.  Other states participating in the SENSOR-Pesticides program include:

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For more information about the Pesticides Program, please contact Cynthia López or 360-236-3340.

 

 

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    Last Update : 12/04/2007 03:42 PM