| dc.contributor | Economy Division | en_US |
| dc.contributor.author | United Nations Environment Programme | en_US |
| dc.contributor.author | World Health Organization | en_US |
| dc.contributor.author | International Labour Organisation | en_US |
| dc.coverage.spatial | Global | en_US |
| dc.date.accessioned | 2019-08-13T18:44:50Z | |
| dc.date.available | 2019-08-13T18:44:50Z | |
| dc.date.issued | 1986 | |
| dc.identifier.isbn | 92 4 154194 6 | en_US |
| dc.identifier.uri | https://wedocs.unep.org/20.500.11822/29331 | |
| dc.description | Ammonia (NH3) is a colourless acrid-smelling gas at ambient temperature and pressure. It can be stored and transported as a liquid at a pressure of 10 atm at 25 C. Ammonia dissolves readily in water where it forms, and is in equilibrium with, ammonium ions (NH4+). The sum of ammonia and ammonium concentrations is termed "total ammonia" and, because of the slightly different relative molecular masses, may be expressed as "total ammonia -nitrogen (NH3-N)". In most waters, NH4+ predominates, but increases in pH or temperature or decreases in ionic strength may materially increase levels of non-ionized ammonia. | en_US |
| dc.format | Text | en_US |
| dc.language | English | en_US |
| dc.rights | Public | en_US |
| dc.subject | environmental health | en_US |
| dc.subject | chemical | en_US |
| dc.subject | ammonia | en_US |
| dc.subject | aquatic ecology | en_US |
| dc.subject | carcinogen | en_US |
| dc.subject | micro-organism | en_US |
| dc.title | Ammonia - Environmental Health Criteria 54 | en_US |
