Anhydrous Ammonia is used in both agriculture as a fertilizer and in industrial facilities as a refrigerant for cooling and freezing.
Common industries that use ammonia refrigeration systems include:
- meat, poultry, and fish processing facilities
- dairy and ice cream plants
- wineries and breweries
- fruit juice, vegetable juice, and soft drink processing facilities
- cold storage warehouses
- other food processing facilities
- petrochemical facilities
Ammonia is considered a health hazard because it is corrosive to the skin, eyes, and lungs. Prolonged contact at concentrations greater than 300 ppm can cause permanent injury or death. Fortunately, ammonia has a low odor threshold (20 ppm), so most people will seek relief at much lower concentrations.