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Under My Skin. Understanding and Controlling the Risks of Dermal Exposure to Pesticides. PestSure Continuing Education Program Fall 2004. J. Dylan Romo, CIH, CSP, ARM Sr. Loss Control Consultant Lockton Companies of Dallas. INDUSTRIALHYGIENISTS:. WE DON’T DO TEETH!.

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under my skin

Under My Skin

Understanding and Controlling the Risks of Dermal Exposure to Pesticides

PestSure Continuing Education Program

Fall 2004

J. Dylan Romo,CIH, CSP, ARM

Sr. Loss Control Consultant

Lockton Companies of Dallas

slide2

INDUSTRIALHYGIENISTS:

WE

DON’T

DO

TEETH!

what is industrial hygiene
What is Industrial Hygiene?

That science dedicated to the “anticipation, recognition, evaluation and control” of occupational health hazards

  • Arising during or as a result of work
  • Having the potential to cause discomfort, sickness, injury or otherwise impair the health or well-being of workers
ih focus
IH Focus

Chronic health hazards

  • Small exposure doses
  • Occurring over long period of time
  • Can result in serious illness(e.g. respiratory disease, cancer)
  • Exposure assessment
    • Qualitative
    • Quantitative
air sampling
Air Sampling
  • Air pump
  • Collection media
  • Lab analysis
  • mg/m3 or ppm
  • 8-hour TWA exposure
  • Compare to guidelines
  • OSHA/ACGIH
routes of exposure
Routes of Exposure
  • Inhalation
  • Ingestion
  • Injection
  • Absorption
slide7
Skin!
  • Largest organ of human body
  • Extremely sensitive
  • Renewable
  • Protective
  • Regulates body temperature

Source: National Geographic

things to consider
Things to Consider
  • Pain from injury
  • Not impenetrable
  • Certain types of chemicals can get through
  • Foreign agents can be stored or transported
health effects
Health Effects
  • Occupational injury
  • Primary point of contact
    • Irritation
    • Burn
    • Dermatoses
health effects1
Health Effects
  • Occupational illness
  • Systemic
    • Target organs
    • Cancer
    • Skin sensitization
contribution of skin exposure
Contribution of Skin Exposure
  • In a whole body vapor exposure, only around 10% of the body burden is from the skin route
  • But key attributes of pesticides include:
    • Persistent
    • Penetrating
    • Poisonous
gross contact
Gross Contact
  • Direct immersion
  • Liquid splash or spill
  • Not limited to liquids only
  • Includes dry powder dusting
fallout from aerosols
Fallout from Aerosols
  • Airborne liquid droplets
  • Pump sprayers
    • Wind current
    • Too much pressure
    • Damaged nozzle
  • Not always detected
contaminated surfaces
Contaminated Surfaces
  • Previously treated areas
  • Confined spaces
    • Crawl spaces
    • Attics
  • Abrasion speeds permeation
contaminated clothing ppe
Contaminated Clothing/PPE
  • Common culprit is leather footwear or gloves
  • Can hold chemical against the skin for long periods
  • Prolonged contact allows for increased skin absorption
  • Scenarios include
    • Mixing spills
    • Drips from wands
  • Contaminated PPE should be removed immediately!
exposure through ppe
Exposure through PPE
  • PPE is NOT a solid barrier
    • Permeation
    • Penetration
  • PPE is NOT all the same – no one type works for all
  • PPE does NOT last forever – there is a ‘useful life’
common controls
Common Controls
  • Awareness
  • Chemical handling
  • PPE
awareness
Awareness
  • Two Sources
    • Training
    • Experience
  • Two Types
    • Objective information
    • Conditions
chemical handling
Chemical Handling
  • Keep containers closed whenever possible
  • Consult labels often
  • Act deliberately
  • Aim for zero exposure
slide20
PPE
  • Selection
    • Chemical properties
    • Glove characteristics
    • Task requirements
  • Use and Maintenance
    • Pre-check
    • Proper donning/doffing
    • Cross contamination
    • Cleaning
  • Storage and Disposal
    • Chemical free zone
    • End of useful life
other risk factors
Other Risk Factors
  • Skin Condition
  • Area of the Body
  • Personal Hygiene
skin condition
Skin Condition
  • Must be protected
  • Maintain moisture to avoid drying/cracking
  • Clean and protect cuts from chemical exposure
  • Consult your physician
area of the body
Area of the Body
  • Thin skin, highly vascularized
  • Scalp, forehead, genitals, ear canal
  • Precautions
    • Wear cap
    • Earplugs
    • Holding equipment in lap
personal hygiene
Personal Hygiene
  • Wash exposed skin if suspect chemical contact
  • Wash hands before
    • Eating
    • Smoking
closing
Closing
  • Skin is the largest organ in the body
  • Dermal exposure and absorption can provide a significant contribution to dose
  • Work practices, personal hygiene, and PPE must be used wisely to prevent injury and illness