a chemical combination of nitrogen and hydrogen having the formula NH3 which appears under the form of a colorless gas with an intensely irritating odour, is lighter than air, easily liquefied by pressure, combustible, very soluble in water and alcohol and is used as a refrigerant and in the production of nitric acid and fertilizers
Paiksetest ja liikuvatest saasteallikatest eralduvate vääveldioksiidi, lämmastikoksiidide, lenduvate orgaaniliste ühendite ja ammoniaagi heidete summaarsed piirkogused ja nende saavutamise tähtajad kehtestab Vabariigi Valitsus määrusega.
