Data Source
The Washington State Department of Health (DOH) receives reports of potential acute pesticide illnesses from multiple sources: Washington Poison Control Center and Labor and Industries; Department of Agriculture, healthcare providers, individuals, and others. DOH reviews reports to determine if the incident meets the case criteria for inclusion for investigation as defined by the National Institute for Occupational Safety and Health (NIOSH) at the Centers for Disease Control and Prevention (CDC) [1]. The investigations include interviews with impacted people, review of medical records, pesticide label information, and toxicology reports. Once the investigation is completed, the investigator determines whether the illness was linked to exposure to pesticide using NIOSH classification criteria. All information on cases is entered into our SPIDER (SENSOR Pesticides Incident Data Entry and Reporting) [2] database. Only cases with sufficient evidence are included in the dashboard.
Rationale for Inclusion
The acute pesticide-related Illnesses dashboard provides a rich source of data about acute illnesses stemming from pesticide exposures, including trends over time, the geography of where pesticide exposures occurred, correlations with demographics, and the pesticide classes most often associated with these illnesses. This data could help the public reduce their risk of acute pesticide illnesses through education of the risks associated with different types of pesticide application and how proper use of personal protection equipment (PPE) and following pesticide labels can reduce risk. This data could inform programs and future policies on pesticide usage, including appropriate use of PPE.
Information About the Data
Acute pesticide-related illnesses are from acute exposure events: "single, repeated, or continuous exposure to 1 or more pesticides that generally occurs for ≤8 hours." [3] Acute pesticide illnesses may occur in both occupational and non-occupational settings.
Pesticide-related illnesses are a notifiable condition in Washington (WAC 246-101-101). Under this rule, health care providers are required to report cases of pesticide-related illness to DOH immediately in the case of hospitalization, fatality, or cluster—defined as an unusual aggregation of illnesses, generally of 4 or more people, from a single event; and within 3 business days for all other cases.
DOH reviews all referred reports and investigates those that meet the following criteria:
- The pesticide exposure occurred during the last 3 months
- Symptoms and/or signs were reported
- At least 1 person involved in the exposure event saw a healthcare provider
- The potential pesticide exposure occurred in Washington
- The pesticide exposure was unintentional (neither a suicide nor a homicide attempt)
The acute pesticide-related illnesses dashboard includes:
- Coverage: API cases occurring in Washington from 2013-2024
- Variables: total number of pesticide illnesses, exposure type, exposure route, severity and symptoms, demographics (sex, age group, race and ethnicity), pesticides infor (pesticide functional class, pesticide chemical class), intended target and pesticide application equipment, and event narratives, searchable by keyword, date range, pesticide name and severity
- Years: 2013–most recent year available; updated annually
- Geography: state, Accountable Communities of Health (ACH) county groups, county
- Age: under 5, 5-14, 15-34, 35-64, 65 and over
- Sex: female, male
- Ethnicity: Hispanic, non-Hispanic
- Race: Asian and Pacific Islander (AAPI), American Indians and Alaska Natives (AIAN), Black, Mixed Race, White
Caveats
- The pesticide illness data are included only when there is sufficient level of evidence from the investigation process to associate the illness experienced with the pesticide exposure described. Only cases that meet the API case definition using the NIOSH criteria are included in the dashboard.
- The data provided in this dashboard is likely an underestimate of acute pesticide-related illness and injury in Washington due to various reasons such as underreporting, lack of sufficient environmental data on exposure, and difficulty in diagnosing pesticide-related illnesses. Furthermore, the level of reporting may be biased by demographics including but not limited to sex, race, and immigration status.
- Race and ethnicity data is limited by respondents' willingness to self-identify. 22.6% of people experiencing an API from 2013-2024 had unknown race and ethnicity information.
References
[1] Case Definition for Acute Pesticide-Related Illness and Injury Cases (PDF) (CDC)
[2] SPIDER: SENSOR (Sentinel Event Notification System for Occupational Risks) Pesticide Incident Data Entry and Reporting (PDF) (CDC, NIOSH)
[3] Acute Nonoccupational Pesticide-Related Illness and Injury—United States, 2007–2011 (CDC)