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Title: Un-ionised ammonia in north west estuaries using 1992/3 data
Author: National Rivers Authority North West Region
Document Type: Monograph
It is generally accepted that the toxicity of ammonia to aquatic life is dominated by free ammonia (NH3), with the ammonium ion (NH4+) being relatively non toxic. Algorithms for calculating un-ionised ammonia are readily available for freshwater systems. However they have not been sufficiently accurate in saline systems where the fraction of the total ammonia present in the unionised form is dependent on pH, temperature and salinity. Recently Plymouth Marine Laboratory have produced a new algorithm for the N.R.A., specifically to improve our understanding of the behaviour of ammonia in estuaries and coastal waters.
Publisher: National Rivers Authority
Publication Date: 1994
Publication Place: Warrington
Subject Keywords: EstuariesAmmoniaToxicityAquatic organismsSalinityTemperaturepH
Geographic Keywords: EA North West
Extent: n.p. [11]
Total file downloads: 275

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