Published on March 14, 2014
CHEMICAL EXPOSURE ROUTES 1. Inhalation 2. Direct Contact with Skin (Absorption) 3. Ingestion 4. Injection There are 4 ways a chemical can enter the body
• Inhalation – most common route • Breathing in gases, vapors, aerosols, mists, fumes, fibers, or particles CHEMICAL EXPOSURE ROUTES
Direct contact with skin is the next most common route of exposure Absorption through skin depends on: • Concentration, solubility of chemical • Condition of skin – intact or broken (e.g., scrapes, wounds, etc.) • Duration of contact CHEMICAL EXPOSURE ROUTES
Ingestion Mouth contact w/ contaminated hand or other item (e.g., pen, lip balm, cup) CHEMICAL EXPOSURE ROUTES
Injection Contact w/ contaminated needles or other sharp items could inject chemicals into the body CHEMICAL EXPOSURE ROUTES
SIGNS AND SYMPTOMS OF EXPOSURE • Be aware: chemical exposure may cause local effects such as a skin rash at the contact site, or systemic effects such as dizziness or nausea. • Solvents • Inhalation: headache, nausea, dizziness, lightheadedness • Skin contact: dry skin, redness, irritation • Corrosives • Inhalation: irritation of eyes and respiratory system • Skin contact: redness, itching, tingling, burning, blistering
SOME CHEMICALS MAY HAVE UNIQUE EFFECTS Readily penetrates skin barrier and can carry other chemicals w/ it (e.g., small molecules dissolved in DMSO) Hydrofluoric Acid (HF): • May penetrate skin and tissue w/o causing immediate pain • Replaces calcium in bone – severe throbbing deep in tissue hours later
Mouth ulcers is a symptom of chemical exposure. Many of the things you mention is what can happen when you are exposed to too much of a chemical.
Signs and Symptoms of Chemical Exposure -- CSUEB 5 months ago. Health & Medicine. Detecting Chemical Releases and Occupational Exposure Limits
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