Pesticides are risk factor for Asthma globally

What are pesticide?

Pesticides are toxic substances that are widely utilize to kill the pests. In general, a pesticide is a toxic chemical or biological chemical that kills pests, such as a bacteria, viruses and other vertebrate/ invertebrate pest organisms.

These are mostly used in fields and crops to increase the yield production as it kills the pests which harm the crops. Insecticides are chemical that are used to kill insects, while on the other hand, herbicides are used to kill weeds, rodenticides are utilize to kill rodents, and fungicides are utilize to manage fungus, and mold.


Pesticides are not a new innovation; they were in use over 2000 years before Christ was born. To prevent their crops from the hazardous insects and pests, ancient humans employed sulphur as a pesticide, subsequently, farmers used to lead and arsenic.

Arsenic and mercury have been employed by Chinese farmers to control pests on their crops. Oil and ash were employed as insecticides by the Greeks and Romans for their crops and cattle.

Dichloro-Diphenyl-Trichloroethane (DDT) was developed in the early nineteenth century and was widely used as a pesticide in many nations. However, researchers subsequently discovered that it had harmful effects on people, and DDT was prohibited in many countries.

Any substance or mixture of substances prepared or taken to control, kill or prevent any sort of pest, including undesirable species of animals or plants, vectors of human diseases, causing harm to crops and food before or after production and during transportation or storage, or chemicals that may be given to animals to keep protect the insects, arachnids, or other pests in or out of the body.

Types of Pesticides

  • Herbicides – to kill Herbs
  • Insecticides –to destroy Insects
  • Nematicide –to destroy Nametodes
  • Molluscicide –to destroy Mollusa
  • Piscicide –to kill Fish
  • Avicide – to kill Birds
  • Rodenticides –to kill Rodents
  • Bactericides –to kill Bacteria
  • Fungicide –to control Fungi
  • Lampricides –to control Lamprey
  • Larvicides –to kill Larvae  [1]

Benefits of Pesticides

Pesticides are extremely advantageous since they may have a huge direct and indirect impact on humans, such as

  1. It keeps pests at bay and protects crops from diseases.
  2. It manages the disease vector in livestock.
  3. It eliminates pests that are harmful to humans or disrupt activities.

Pesticide: A contributing factor for the global increase in Asthma

Asthma is a chronic disease of lungs that causes inflammation as well as narrowing of the airways, leading to difficulties breathing.

Three major signs of Asthma


Asthma causes red, inflamed bronchial tubes in the lungs.

Airway Blockage

Due to Asthma, Airways of a person become narrow and it’s hard to pass the air leading difficulty in breathing.

Airway irritability

Asthma patient are very sensitive to even minute allergen, their airway overreact when they come across any allergen.

Pesticide and Asthma

Pesticides can be breathed, swallowed, or absorbed, and residues can be found everywhere like in the food, air, and water. People may expose to pesticide through agriculture, or from exposed fruit or weed. A pesticide exposure that causes an allergic reaction. For example, even a little amount of exposure to certain pesticides might cause an asthma attack.

Every pesticide has the danger of harming humans, chemicals used to kill insects and rodents can also affect humans. Pesticide uses has been related to a variety of health problems.

Cancer, birth abnormalities, endocrine disruption, asthma, and other chronic health issues immunological system and neurological problems.

Application rates of agrochemicals such as herbicides, insecticides, and fungicides in general

Those used on our lawns are substantially greater than those used in forestry, and they are far higher than the majority of consumption in agriculture.

Triggers for Asthma

Asthma attacks are frequently triggered by the inhalation of particular chemicals known as triggers. Irritants or lung irritants are the triggers. Dust, pet dander, tobacco smoke, aerosols, and mold are examples of airborne allergens that trigger allergic reactions. Pesticides, fragrances, air fresheners,  and industrial cleaning chemicals are examples of chemical lung irritants.

People who are repeatedly exposed to allergens or irritants, such like bug and/or mouse allergens, might become “sensitized,” making them more susceptible to allergic responses. Knowing what triggers your asthma might help you take actions to lessen them, reducing asthma symptoms and attacks.

Asthma is triggered by pests

Pests are unwelcome intruders into our homes. Some of these pests, particularly mice, rats, and cockroaches, can cause asthma attacks once they’ve gotten inside. In fact, studies are being conducted to see if these bugs might induce asthma to develop.

Contact to cockroach allergens has been identified as the single most important factor leading to asthma in children living in metropolitan areas in the eastern United States. Cockroaches lose their skins, leave excrement behind, and when they die, their carcasses decompose into dust, all of which might induce an asthma attack. To make matters worse, pesticide spray or “bug bombs” used to kill roaches can irritate the lungs and induce an allergic reaction.

Asthma, Pesticides, and Human Health

Pesticides are chemicals that are used to kill, repel, or control pests such as bugs, rats, weeds, and molds. Pesticides are one of four environmental contaminants identified by the US Environmental Protection Agency (EPA) as having the potential to affect the onset and worsening of asthma symptoms.

When pesticides are breathed in, they irritate the lungs. Furthermore, common pesticides have been related to cancer, birth deformities, reproductive diseases, and neurological, renal, and liver damage in animal studies. To keep children safe, restrict their exposure to poisons of all types, including pesticides.

Pesticides effect on children

Pesticides are very harmful to children, significantly those who have a history of allergies or asthma. For a variety of reasons, children are more vulnerable to pesticide toxicity than adults and are more effective at absorbing larger amounts of such chemicals as compared to adults.

When pesticide spray hovers overplay spaces, young children inhale the chemical, and because they frequently stick their hands and toys in their mouths, the chemical substances can be eaten as well as absorbed into the body. Because of their near contact with the earth, limited capacity to detoxify chemicals, and greater susceptibility to pesticides, young children are more susceptible to pesticides.

Steps to minimize the use of Pesticides

In homes we use toxins against . These toxins are very harmful to humans especially for children as it can cause asthma. Some pesticides like diazinon or propoxur which are used  as it may cause nervous disorders in humans.

There are several ways to control cockroaches instead of Pesticide

  • Clear the table. Food and waste should be stored in airtight containers. Daily dishwashing and rubbish removal immediately wipe up crumbs and spills.
  • Vacuum the flooring. To eliminate food crumbs and cockroach eggs, hoover and wet vacuuming your home on a regular basis.
  • Keep sinks, baths, and appliances clean. Fix any broken faucets, drains, or appliances. Repair any cracks. Allowing water to sit for lengthy periods of time is not recommended. Cockroaches may seek food and water elsewhere if the water and food source runs out. [2]Microsoft Word – asthma_pesticides_eng.doc [3] [4]Pesticides and asthma : Current Opinion in Allergy and Clinical Immunology ( [5]Frontiers | Pesticides and Asthma: Challenges for Epidemiology ( [6]Asthma in pesticide users: an update from the Great Britain Prospective Investigation of Pesticide Applicators’ Health (PIPAH) cohort study ( [7]untitled (

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