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Pesticides

Pesticides are chemicals that control insects. They are used in agriculture but may be used in other fields as well. Humans typically have low pesticide exposure which causes no noticeable effects. However, with large or frequent exposure, negative effects may occur. 

Why is this important?

In 2020, a research study​ on accidental pesticide poisoning estimated that 385 million cases occurred per year world-wide including close to 11,000 deaths.  Also, The Environmental Protection Agency (EPA) estimates that over 1.1 billion pounds of pesticides are used in the U.S. each year.
It is easier to avoid excessive pesticide exposure than it is to treat it. Pesticide poisoning symptoms can be hard to spot. They may resemble those of other conditions. For these reasons, you must know your risk of pesticide exposure. 

What is known?

Too much exposure to pesticides may harm human health. Potential health problems may include:
  • Cancer
  • Eye or skin irritation
  • Damage to the nervous system 
  • Changed function of the hormone or endocrine system
Different pesticides use different chemicals. So, their effects may vary. Pesticides can harm pregnant women, too. Chemicals can lead to birth complications or defects. They may also enter breast milk. 
Pesticides can enter the body and cause harm in many ways. Some ways in which pesticides can enter the body include:
  • Ingestion (eating or drinking)
  • Inhalation (breathing in)
  • Absorption through the skin
Pesticides are tested before being allowed for public use. However, it is still important to monitor the effects of exposure even after cleared for use. Monitoring systems can spot symptoms missed in early tests. They can also inspire better laws and regulations on pesticide use.

Who is at risk?

Some people may be more exposed to high levels of pesticides than others. This may be due to their job or residential location. Others may be more likely to develop serious symptoms. Some people who may be at higher risk include:
  • Farmers and agricultural workers
  • Flight crews and passengers
  • Children
  • Pregnant women
  • People who live in an agricultural area
  • Pest control workers and fumigators
  • Landscapers
  • Anyone using ‘bug bombers’ (residential release pesticides)

Reducing risk:

With proper awareness, we can reduce a person’s risk of high pesticide exposure. Some steps that can be taken include:
  • Asking others to apply pesticides if you are pregnant
  • Avoiding pesticides for about 3 months before trying to conceive (both parents)
  • Reading pesticide labels and instructions before use
  • Wearing protective clothing when pesticides are in use

Resources