Pesticides and Health

Worker in yellow protective suit sprays off an orange pesticide container.

What is pesticide exposure?

Pesticides are substances designed to prevent, destroy, repel or mitigate pests. As of 2012, approximately 899 million pounds of conventional pesticides (e.g. insecticides, rodenticides, fungicides, herbicides, and fumigants) were used in United States agriculture (EPA 2017). 

What are potential adverse health effects of pesticide exposure?

Between 2007 and 2011, the rate of acute illness and injury among agricultural workers (18.6/1000,000) was estimated to be 37 times greater than the rate for nonagricultural workers (0.5/100,000) (Calvert et al. 2016). Skin absorption, inhalation, and ingestion are key routes of exposure to consider for occupational and residential settings. PNASH works to address pesticide exposure for those who are most vulnerable:

  • Pesticide handlers (mixers, loaders, and applicators) 
  • Children who have an enhanced susceptibility to the uptake and toxicity of pesticides

Overall, improved products, application practices, and case reporting have helped, but common illnesses and injuries still occur. Some of these common exposures happen through the off-target movement of pesticides (a.k.a. drift) or splashes to the eye. A growing body of evidence reveals that long-term exposure can lead to more serious health effects including neurological diseases and cancers.

PNASH Resources

Pesticide handler on tractor

¡Etiquetas de pesticidas, ahora!™/Pesticide Labels, Now!™

Bilingual mobile app for apple and pear production in Washington state

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Image of PPE at Work Poster

Personal Protective Equipment (PPE) in the Heat Poster

PPE and work coveralls can be much hotter than regular work clothes. Part of the Heat Illness Toolkit.

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image of worker mixing pesticides

Practical Solutions for Pesticide Safety

This webpage provides a collection of solutions and tools developed and tested in partnership with farmers, educators, and researchers in Washington State. 

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PNASH Research

Measurement of Farmworker OP Exposure through Protein Adducts

NIOSH and WA State MAAF 2011-2016 | Chris Simpson, PhD, MSc

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Using IPM to Reduce Pyrethroid Pesticide Exposures in Dairy Workers

NIOSH Funding Period 2011-2016 | Michael Yost, PhD, MS

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Reducing Agricultural Worker Risks through New and Emerging Technologies

NIOSH Funding Period 2011-2016 | Richard Fenske, PhD, MPH

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PNASH Research

Using IPM to Reduce Pyrethroid Pesticide Exposures in Dairy Workers

NIOSH Funding Period 2011-2016 | Michael Yost, PhD, MS

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Reducing Agricultural Worker Risks through New and Emerging Technologies

NIOSH Funding Period 2011-2016 | Richard Fenske, PhD, MPH

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Pesticide Safety in Tree Fruit: Translating Research, Overcoming Barriers

NIOSH Funding Period 2011-2016 | Kit Galvin, MS, CIH and Nadine Lehrer, PhD

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