Phosgene is a chemical used to make plastics and pesticides. Phosgene can be found as a liquid or gas. If released as a liquid, it quickly turns into a gas that stays close to the ground and spreads fast. The phosgene gas may appear colorless or as a white to pale yellow cloud. The smell can range from a pleasant odor of newly mown hay to a strong and unpleasant odor depending on the concentration.

The extent of exposure will depend on the route, amount, and the length of time you were exposed to phosgene. If phosgene comes into contact with water or food, you may be exposed through touching, drinking or eating the contaminated source. If phosgene gas is released into the air, people may be exposed through breathing air, skin or eye contact.

During or soon after exposure to phosgene, the following symptoms may develop: coughing, irritation to the eyes and throat, blurred vision, shortness of breath, nausea and vomiting. Delayed symptoms can appear for up to 48 hours after exposure, such as inability to breathe, low blood pressure, coughing up white to pink fluid and heart failure.

If you think you have been exposed, leave the area quickly and get to fresh air. Remove your clothing and quickly wash your entire body with soap and water. If your eyes are burning or your vision is blurred, rinse them with plain water for 10 to 15 minutes. If you wear contacts, remove them before rinsing your eyes. Place your contaminated clothes and contact lenses into a plastic bag and seal. Place the bag into a second plastic bag and seal. If you have swallowed the phosgene, do not induce vomiting or drink fluids. Call 911 for medical attention right away and removal of the contaminated items. Do not drive yourself to the hospital as you may become very ill on your way.

Regional Poison Control Center (1-800-222-1222)

Centers for Disease Control and Prevention (CDC)