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Pesticide Safety. Protecting Yourself. Pesticides. Insecticides Herbicides Fungicides. Pesticide Injuries. Injuries – Mixing and Loading. 60% of injuries Application makes up less than ½ (38%) Over ½ (57%) of injuries are systemic. About 25% are eye injuries. Toxicity of Pesticides.

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pesticide safety

Pesticide Safety

Protecting Yourself

  • Insecticides
  • Herbicides
  • Fungicides
injuries mixing and loading
Injuries – Mixing and Loading
  • 60% of injuries
  • Application makes up less than ½ (38%)
  • Over ½ (57%) of injuries are systemic.
  • About 25% are eye injuries
toxicity of pesticides
Toxicity of Pesticides

Toxicity – capability of a substance to cause injury or death.

How poisonous

it is!

  • Hazard = Toxicity x Exposure
what is a formulation
What is a Formulation
  • How a pesticide is packaged.
  • Contains:
    • Active Ingredient
    • Inert Ingredient
types of formulations
Types of formulations
  • Wet
    • More easily absorbed
  • Dry
    • More easily inhaled
liquid formulations
Liquid Formulations
  • EC –emulsifiable concentrate
  • S - soluble
  • ULV – ultra low volume
  • F or FL - flowables
  • ME – micro-encapsulated
dry formulations
Dry Formulations
  • WP – Wettable powder
  • DF – Dry Flowable
  • WDG – Water Dispersable Granule
  • D - Dust
  • P or G – Pellets or Granules
  • M or ME – Micro-Encapsulated
acute and chronic toxicity
Acute and Chronic Toxicity
  • Acute Exposure
  • Immediate effects of a single, short term dose.
  • All routes are considered during testing..dermal, oral, eye and inhalation
some common oral ld 50 values
Some Common Oral LD50 Values
  • Aldicarb (Temik) (I) – ----------------------0.9
  • Ethyl parathion (I) - -------------------------3
  • Carbofuran (Furadan)(I) -------------------8
  • Methyl parathion (I) – ----------------------9
  • Caffeine-----------------------------------------200
  • 2,4-D (H)----------------------------------------375
  • Table Salt---------------------------------------3750
  • Permethrin (Ambush) (I) ------------------4000
  • Imathamethabenz-methyl (Assert) (H)-->5000
  • Glyphosate (Roundup)(H)-------------------5600
  • Picloram (Tordon)(H)------------------------8200
  • Captan (F)--------------------------------------9000
signal words
Signal Words
  • Danger-Poison (I)
  • Danger (I)
  • Warning (II)
  • Caution (III)
  • Caution (IV)
chronic toxicity
Chronic Toxicity
  • The delayed effects of repeated exposures over a long period of time.
  • Effects evaluated in the lab include
    • Potential tumors
    • Birth defects
    • Reproductive effects
material safety data sheets
Material Safety Data Sheets
  • Provide details on both acute and chronic exposures.
  • Provides basis for protective gear (PPE)
other label information

Other Label Information

Agricultural Use Requirements


protecting your bod
Protecting your Bod!
  • Skin
  • Eyes
  • Ingestion
  • Inhalation
  • For Toxicity Class III or IV – Cotton (tight weave), Kleenguard® coveralls
  • For Toxicity Class (II) – Possibly cotton, Tyvek.
  • For Toxicty Class I – PVC, Nitrile, Tychem®, sealed or serged seams.
woven materials
Woven Materials

Laminated vs.




Polyethylene coated Tyvek

  • Want unlined gloves!
  • Do Not Wear Leather Gloves!
  • Do Not Wear exam gloves!
  • Check for holes often!
  • Want 14 mils or higher!
glove material
Glove Material
  • Nitrile – Good overall protection, $2.39/pr
  • Neoprene – Softer, better dexterity - $5.16
  • Natural Rubber – Use only on dry or water based formulations - $11-18.00/pr
  • Butyl – For High Toxicity Pesticides - $18.45
  • PVC – Anyhydrous ammonia - $4.00/pr
  • Viton – Superior Protection but $174.50/pr
glove material classification
Glove Material Classification

A---Any dry or water based pesticide formulation.

   B---Any pesticide with acetate as the carrier solvent.

   C---Any pesticide with alcohol as the carrier solvent.

Example - Comite®

D---Any pesticide with halogenated hydrocarbons as the carrier.

E---Any pesticide with ketones (such as acetone) as the carrier solvent.

Example - Poast Plus®, Weedone 638®, 2,4-D LV 6 Ester®

F---Any pesticide with ketone and aromatic petroleum distillate

mixtures as the carrier solvent. Example - Di-syston 8®

G---Any pesticide with aliphatic petroleum distillates ( such as

kerosene, petroleum oil or mineral oil as the carrier solvent.

Example - Guthion 2L®

H---Any pesticide that has aromatic petroleum distillates (such as

xylene) as the carrier solvent.

protecting your head
Protecting Your Head

Ball Cap?


Straw Hat?



eye protection
Eye Protection
  • Goggles
  • Face Shields
  • Safety Glasses
  • But never wear contacts when spraying pesticides!!!
heat stress while spraying pesticides
Heat Stress While Spraying Pesticides
  • Pesticide users are at higher risk…
    • More clothing
    • Toxic environments
    • Other stress factors
      • Hard work
      • More exposed to sun
      • Difficult to drink water
heat exhaustion
Heat Exhaustion
  • Overheating of the body due to excessive loss of water or, in rare cases, salt depletion.
  • Symptoms include:
    • thirst, headache
    • Pallor
    • Dizziness
    • possibly nausea or vomiting.
    • In severe cases, your heart may race and you may feel disoriented.
heat stroke
Heat Stroke
  • Body's thermoregulatory system stops working.
  • Many of the symptoms are the same as for heat exhaustion.
  • But there are additional symptoms
    • cessation of sweating
    • difficulty walking
    • disorientation and fainting or;
    • unconsciousness
heat stroke can permanently damage your health

Heat Stroke can permanently damage your health

If you get heatstroke once, you may be likely to get it again.

first aid for heat exhaustion
First Aid For Heat Exhaustion
  • Stop what you are doing and get out of the sun-preferably into an air-conditioned building.
  • Drink water or, better still, a sports beverage, taking it slowly rather than gulping it down.
  • If you don't feel better within 30 minutes, go to a hospital emergency room.
  • Heat Stroke is generally not fatal but heat stroke can be!!
first aid for heat stroke
First Aid For Heat Stroke
  • Key symptom to look for is disorientation. A person who is functioning well mentally isn't in danger. Someone who's becoming "jelly brained“ is in trouble.
  • Pack ice around the patient’s neck, armpit and groin.
  • Splash water on the skin, and fan them.
  • Elevate the legs.
  • If the person is conscious, give plenty of fluids--1 to 2 quarts--preferably a sports beverage, but water's fine.
  • The person will probably be nauseated and may not want to drink anything, but fluids are essential.
preventing heat injuries
Preventing Heat Injuries
  • Drink water (1 quart per hour when hot!)
  • Eat to replace electrolytes
  • Rest breaks!
  • Acclimatize!
  • Watch for low humidity. You may not appear to be sweating but it is evaporating. You become less cautious
heat injuries look like pesticide injuries



Dry Membranes

Dry Mouth

No tears or spit

Fast pulse

Dilated pupils


Loss of coordination




Moist Membranes

Salivation, spit, tears

Slow pulse

Pinpoint Pupils


Loss of coordination

Heat Injuries Look Like Pesticide Injuries

Heat Injuries

Pesticide Injuries