CO2
Pollution Sources:
Charcoal, firewood, kerosene, gas, cooking environment, heating, mosquito coils, incense, candles, smoking, crowded place, etc. Bacteria spread through ventilation systems, live in the air, and thrive in humid and poorly ventilated places.
Health effects:
Increased heartbeat, dizziness, disorientation, distorted vision, difficulty breathing, nausea, vomiting, stupor, hearing loss, unconsciousness, convulsions.