MSW Landfill Gas

Principle Routes of Exposure

Inhalation ADDITIONAL ROUTES OF EXPOSURE: Skin and/or eye contact EYE CONTACT: Hydrogen Sulfide can cause conjunctivitis with pain and vision disturbance at concentrations above 50 ppm. Erosion of the cornea may occur with very high exposures but is usually reversible. SKIN CONTACT: May result in Irritation, severe pain, itching and erthema. INHALATION: Simple asphyxiants. Most of the MSW landfill gas can create an asphyxiation hazard when present at typical landfill gas concentrations because these gases reduce the concentration of oxygen inhaled. Depending on the concentrations of the landfill gas in the air that is inhaled symptoms may include nausea. headache, accelerated heartbeat, intermittent respiration, rapid fatigue. poor muscle coordination. vomiting, spasmatic breathing, convulsive movements, unconsciousness, or death in minutes. Methane Simple asphyxiant - see above. Carbon Dioxide Simple asphyxiant- see above. In addition, lower concentrations may cause dizziness, mental depression, visual disturbances, or shaking. See Section 3 for IDLH concentration. Nitrogen Simple asphyxiant- see above. In addition. severe cases abnormally low blood pressure, apnea. and cardiac arrest develop. Various disturbances including mood disturbances, numbness of the extremities, sleepiness, mental confusion and memory loss may occur. Prolonged or severe hypoxia results in unconsciousness. Prolonged asphyxia may produce CNS injury. Cerebral edema with brainstem herniation may occur. Oxygen Atmospheres with oxygen concentrations below 19.5 percent can have adverse physiological effects, fatigue, faster and deep breathing, dizziness. buzzing in the ears, or rapid heartbeat. Atmospheres with less than 16 percent oxygen can become life threatening, loss of consciousness with prolonged exposure, convulsive movements, or death. Hydrogen Sulfide Inhalation of hydrogen sulfide may resuH in upper airway irritation at concentrations above 5 ppm. low-level exposure can cause eye pain and redness, dizziness, nausea, and headache. Exposure to 50 ppm or higher may cause pulmonary edema or bronchitis. Exposure to 100 ppm is immediately dangerous to life and health. Exposure to high levels of hydrogen sulfide may cause convulsions, respiratory arrest. permanent brain damage, heart failure, or immediate death. In addition, cardiac effects including bradycardia, myocarditis, and conductive defects have been reported. Amnesia, delirium and hallucinations may also occur after exposure to high levels. See Section 3 for IDLH concentration. ORAL: NA (Is a gas at room temperature, making ingestion unlikely). NFPA HAZARDOUS MATERIALS RATINGS (For Methane): Flammability Ratings: Health: 1 Fire: 4 Reactivity: 0

Hazard statements

Health: 3 Fire: 4 Reactivity: 0 HCS Pictogram: Flammable CARCINOGENICITY: This product does not contain any carcinogens (in concentrations of 0.1 % or greater) as defined by IARC, NTP, or OSHA.