CSLB C-46 Solar ContractorSafetyMedium
A solar technician is working in an attic space that has not been properly ventilated. The technician experiences dizziness, headache, and nausea. Which hazardous material exposure is MOST likely causing these symptoms in this environment?
- AVolatile organic compounds (VOCs) from new building materials.
- BAsbestos fibers from old insulation.
- CLead dust from old paint.
- DCarbon monoxide from combustion appliances.
Show answer & explanationAnswer & explanation
Correct answer: D. Carbon monoxide from combustion appliances.
Dizziness, headache, and nausea are classic symptoms of carbon monoxide (CO) poisoning. Unventilated attic spaces can trap CO from combustion appliances (like water heaters or furnaces) if they are present and malfunctioning, or from engine exhaust if equipment is used nearby.
Why the other options are wrong
- A. While VOCs can cause headaches and nausea, they are more associated with new construction materials, and CO is a more acute and life-threatening concern in unventilated spaces with combustion sources.
- B. Asbestos exposure primarily causes long-term respiratory diseases, not immediate symptoms like dizziness and nausea.
- C. Lead poisoning symptoms typically include fatigue, joint pain, and neurological issues, but not usually acute dizziness and nausea from dust inhalation in this manner.
Carbon Monoxide (CO) Poisoning Symptoms
Carbon monoxide poisoning occurs when CO displaces oxygen in the blood, leading to symptoms like headache, dizziness, nausea, fatigue, and confusion, often mistaken for flu.
- CO is colorless, odorless, and tasteless.
- Produced by incomplete combustion.
- Symptoms worsen with exposure duration and concentration.
Memory trick: Dizzy, headachy, feeling ill? Check for CO, it's a silent kill!