5.4 First Aid and Decontamination
Key Takeaways
- Ensure scene safety first so rescuers do not become additional victims; then remove the person from the source of exposure.
- Remove contaminated clothing and wash skin thoroughly with soap and water when appropriate; flush eyes with clean water for typically 15 minutes or more.
- Do not induce vomiting unless the label, SDS, or poison control specifically directs it—vomiting can worsen some chemical injuries.
- Call 911 for severe symptoms (breathing distress, collapse, seizures, severe burns); contact poison control and arrange medical follow-up as needed; bring the label/SDS to hospital.
- For environmental releases in Ontario, use emergency services as needed and report pollution/spills to the Spills Action Centre at 1-800-268-6060.
5.4 First Aid and Decontamination
Quick Answer: Scene safety → remove from exposure → remove contaminated clothing → rinse skin/eyes (eyes often 15+ minutes). Do not induce vomiting unless label/SDS/poison control say so. Call 911 for severe symptoms; get medical/poison-control follow-up; bring label/SDS. Ontario environmental releases: emergency services as needed + Spills Action Centre 1-800-268-6060.
First aid on Core is a sequence exam. Wrong order (for example, running into a vapour cloud without protection, or forcing vomiting after a corrosive swallow) can worsen outcomes. Memorize the logic of the steps, then connect them to label first-aid statements and Ontario spill reporting.
Guiding principles
- Do not create a second victim.
- Stop the exposure before elaborate treatment.
- Decontaminate early (clothing, skin, eyes).
- Follow label/SDS/poison control for product-specific actions.
- Escalate early when breathing, consciousness, or eyes are in serious trouble.
- Transfer information (product identity) with the patient.
Step 1 — Scene safety
Before touching the patient or the spill:
| Check | Actions |
|---|---|
| Air hazards | Vapours, dusts, fog still present? Ventilate if safe; use appropriate PPE/respirator only if trained and equipped; otherwise wait for emergency responders |
| Ongoing spray/leak | Shut off equipment if you can do so without entering the danger zone unprotected |
| Slip/fall/electrical | Wet floors, running engines, power lines, traffic |
| Bystanders | Keep unauthorized people out |
Exam trap: “Always rush in bare-handed to pull someone from a dense indoor fog.” Courage without protection can double the casualty count. Rescue only when you can do so safely or when equipped/trained for that atmosphere.
Step 2 — Remove from exposure
Move the person to fresh air and away from the treated area, spill puddle, or contaminated equipment. For inhalation exposures, fresh air is first-line first aid. For skin/eye exposures, getting out of the spray/mist zone prevents ongoing dose while you prepare water for rinsing.
If the person is unresponsive or has severe trauma beyond chemical exposure, use standard emergency priorities (call 911, CAB/first-aid training as applicable) without ignoring chemical contamination on clothing that could expose rescuers.
Step 3 — Remove contaminated clothing and PPE
Contaminated coveralls, gloves, boots, and shirts act like a continuing pesticide patch on the skin.
- Remove clothing carefully to avoid pulling product across the face or into the eyes.
- Bag contaminated clothing for proper handling; do not take poison-soaked gear into a family car seat or home laundry without following workplace hazardous-laundry rules.
- Rescuers should wear appropriate gloves if available when removing wet clothing.
Skin under wet PPE can receive a large dermal dose even after the spray pass ends. Clothing removal is not optional politeness—it is decontamination.
Step 4 — Rinse skin and eyes
Skin
- Wash thoroughly with lots of clean water; use mild soap when available and appropriate for chemical decontamination guidance.
- Pay attention to hair, under nails, skin folds, and areas where clothing was soaked.
- Continue washing long enough to remove residue—do not do a quick splash and stop if product remains.
- For chemical burns, follow label/SDS and emergency medical direction; continuous water irrigation is commonly emphasized for many corrosives until help takes over.
Eyes
- Flush immediately with clean, lukewarm water (or sterile saline if available in a kit).
- Hold eyelids open; rinse from the inner corner outward when possible so runoff does not enter the other eye.
- Typical training benchmark: flush for at least 15 minutes (often longer if irritation continues or label directs).
- Remove contact lenses if present and easy to remove without delaying the start of flushing.
- Seek urgent medical evaluation after significant eye exposure—even if pain decreases after rinsing.
| Exposure | Core first-aid emphasis |
|---|---|
| Skin wet with product | Clothing off → prolonged soap-and-water wash |
| Eye splash | Immediate water flush, typically 15+ minutes, then medical care |
| Inhalation | Fresh air; loosen tight clothing at neck; medical care if breathing impaired |
| Ingestion | Rinse mouth; do not induce vomiting unless directed; poison control / 911 as indicated |
Do not induce vomiting (unless directed)
Forcing vomiting is not a default pesticide first-aid step.
Why default vomiting is dangerous:
- Petroleum solvents and some formulations can cause severe lung injury if vomited and aspirated.
- Corrosive products can re-burn the throat and mouth on the way back up.
- An unconscious or seizing person can choke.
Correct rule for Core:
Do not induce vomiting unless the pesticide label, SDS, or a poison-control specialist specifically tells you to.
When in doubt, call poison control / emergency services and follow their instructions.
Never give oils, salt water, or “home antidotes” invented on the spot.
When to call 911 vs poison control / medical follow-up
| Situation | Action |
|---|---|
| Severe breathing difficulty, chest pain, collapse, seizures, severe confusion, uncontrolled vomiting, major chemical burns, significant eye injury | Call 911 immediately |
| Unconsciousness or not breathing | 911 + trained CPR/first aid as appropriate, with contamination awareness |
| Swallowed product, moderate symptoms, or need for product-specific advice | Poison control / emergency department guidance; many regions use poison-control hotlines—follow current local numbers posted in your workplace |
| Mild symptoms improving after full decontamination | Still consider medical advice; document the event; do not hide workplace exposures |
| Any doubt about severity | Escalate early—delay is the enemy |
After emergency services are engaged, continue decontamination if it does not interfere with life-saving care.
Bring the label and SDS to the hospital
Medical teams need identity of the product:
- Pesticide label (or clear photos of the full label)
- SDS (Safety Data Sheet)
- Approximate amount, concentration (concentrate vs dilute), route, and time of exposure
- First aid already performed (how long eyes were flushed, clothing removed, etc.)
If you cannot send the physical jug, send photos of the front and first-aid panels and the PCP registration number when visible. Section 5.3’s “know today’s products” rule exists for this moment.
Product-specific label first aid always wins on details
General Core steps above are the default skeleton. The label first-aid section and SDS may add or modify actions (for example, specific notes about water irrigation, medical attention, or notes for physicians). When label instructions conflict with informal advice from a coworker, follow the label/SDS and poison control, not shop lore.
Ontario context: emergencies and the Spills Action Centre
Distinguish human medical emergency from environmental release—both can happen in one incident.
| Need | Who / what |
|---|---|
| Ambulance / police / fire for life safety | 911 |
| Pollution and spills reporting in Ontario | Spills Action Centre (SAC): 1-800-268-6060 |
| Training/exam logistics (not emergency medical) | OPT&C 1-888-620-9999 (do not confuse with SAC) |
When SAC belongs in the story
If pesticide leaves controlled containment and causes or may cause an adverse environmental effect—for example, product enters a storm drain, ditch, stream, lake, or spreads off-site as a reportable spill—Ontario’s framework expects timely reporting through the Spills Action Centre at 1-800-268-6060, in addition to any emergency services needed for injuries or fire/explosion risk. Later Core chapters on spills expand containment and cleanup; this toxicology chapter locks the number and the dual human/environment mindset.
Exam discipline:
- Person down and not breathing → 911 first, not SAC.
- Product pouring into a creek, no injuries → SAC (and still secure the scene).
- Both injuries and creek contamination → 911 and SAC as appropriate to the facts.
Put the full sequence together
1. Scene safety (protect rescuers)
2. Remove person from exposure / fresh air
3. Call 911 if severe signs
4. Remove contaminated clothing/PPE
5. Wash skin; flush eyes 15+ minutes
6. Do NOT induce vomiting unless label/SDS/poison control directs
7. Poison control / medical follow-up as needed
8. Provide label/SDS and exposure details to caregivers
9. If environmental release: report to SAC 1-800-268-6060
10. Document incident; review how prevention failed (hierarchy, PPE, procedures)
Exam-style scenarios
Scenario A — Eye splash at mix/load. Concentrate hits an eye. Best immediate action: flush with clean water now, aim for ≥15 minutes, remove contaminated gloves/clothing that could re-contaminate, seek medical care, bring label.
Scenario B — Coworker wants to induce vomiting “to get it out.” Product was possibly petroleum-based EC. Correct: do not induce vomiting unless label/SDS/poison control directs; call for expert guidance / 911 if severe.
Scenario C — Indoor fog, two workers dizzy. Exit to fresh air, decontaminate as needed, evaluate severity for 911, preserve product identity, investigate ventilation/PPE failures.
Scenario D — Tank rupture into a ditch, no injuries. Contain if safe, protect people from contact, call Spills Action Centre 1-800-268-6060, follow ministry/responder directions.
Scenario E — Number mix-up. A stem asks for the Ontario spill reporting line. Answer 1-800-268-6060, not the OPT&C training phone number.
Prevention remains better than perfect first aid
Every first-aid drill should end with a prevention note: correct mix/load PPE, hierarchy controls, equipment maintenance, eyewear, glove integrity, and no hand-to-mouth habits. First aid is the backup parachute; exposure prevention (Section 5.1) is the packed main canopy.
Memory card for Section 5.4
| Item | Remember |
|---|---|
| Order | Safety → remove exposure → clothing off → wash/flush |
| Eyes | Typically 15+ minutes continuous rinse |
| Vomiting | Only if label/SDS/poison control directs |
| Severe human emergency | 911 |
| Information | Label + SDS with the patient |
| Ontario spill line | SAC 1-800-268-6060 |
Master this sequence for closed-book Core. Toxicology knowledge without a correct first-aid order still fails the practical intent of the manual.
After a pesticide splash to the eyes, what is the standard first-aid emphasis taught for flushing?
When should vomiting be induced after a possible pesticide ingestion?
A pesticide release enters an Ontario ditch with potential environmental harm and no human injuries. Which number is the Spills Action Centre reporting line?