||Symptoms & Exposure Details
||Maximum allowable concentration for short term exposure in living area. no symptoms.
||Maximum allowable concentration exposure in any 8-hour period. no symptoms.
||No poisoning symptoms for long periods of time. Allowable for several hours.
||Slight headache, tiredness, dizziness, and nausea after 2-3 hours. Maximum concentration for short-term exposure (15 minutes).
||Frontal headache within 1-2 hours. Life-threatening after 3 hours.
||Dizziness, nausea, and convulsions within 45 minutes. Unconsciousness within 2 hours. Death within 2-3 hours.
||Headache, dizziness, and nausea within 20 minutes. Death within one hour.