Ammonia is a colorless, pungent gaseous compound of hydrogen and nitrogen that is highly soluble in water. It is a biologically active compound found in most waters as a normal …

2024年5月30日 · When ammonia is present in water at high enough levels, it is difficult for aquatic organisms to sufficiently excrete the toxicant, leading to toxic buildup in internal tissues and …

2024年2月29日 · The concentration of ammonia in water is measured as total ammonia and is usually reported in mg/L. The concentration of unionized ammonia (NH 3 ) is derived from well …

Ammonia solution, also known as ammonia water, ammonium hydroxide, ammoniacal liquor, ammonia liquor, aqua ammonia, aqueous ammonia, or (inaccurately) ammonia, is a solution of …

Ammonia is a non-persistent and non-cumulative toxicant to aquatic life. The toxicity of ammonia can depend on pH, temperature and ionic composition of exposure water. The toxicity of …

2023年4月4日 · Indirectly, ammonia build-up can promote the growth of toxic algal blooms that ‘choke’ a body of water, and eventually reduce the oxygen therein. Ammonia testing made …

EPA has published national recommended ambient water quality criteria for the protection of aquatic life from the toxic effects of ammonia, a constituent of nitrogen pollution.

2020年12月9日 · EPA has published final national recommended water quality criteria for the protection of aquatic life from the toxic effects of ammonia in freshwater.

2023年10月21日 · While ammonia has toxic properties in water and air, it also plays a central role in the biogeochemical nitrogen (N) cycle and regulates mechanisms of normal and abnormal …

In water, ammonia exists in two chemical forms: un-ionized ammonia (NH 3) and ionized ammonium (NH 4 +). The combined concentration of these two forms is called total ammonia …