Hazards may be associated with an operation of (ammonia refrigeration systems).Logical formLearned from5 sentences. An ammonia may be released.Logical formLearned from5 sentences. An (ammonia solution) can be weak.Logical formLearned from5 sentences. Amounts of ammonia may be leaked from a line.Logical formLearned from5 sentences. Some lines may be connected to an (ammonia reservoir).Logical formLearned from5 sentences. (Ammonia clouds) can be white.Logical formLearned from5 sentences. An ammonia can be elevated.Logical formLearned from5 sentences. An (ammonia production) can be synthetic.Logical formLearned from5 sentences. (Ammonia levels) can be increased.Logical formLearned from5 sentences. Ammonia may be made.Logical formLearned from5 sentences. An ammonia can be pungent.Logical formLearned from5 sentences. A breath can be constituted-of-or-filled-with ammonia.Logical formLearned from5 sentences. An (ammonia leak) can be anhydrous.Logical formLearned from5 sentences. A process can be for a synthesis of ammonia.Logical formLearned from5 sentences. Ammonia may be converted to nitrate.Logical formLearned from5 sentences.