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1) Due to the inorganic nature of the substance standard testing systems are not applicable.

2) Ammonia from ammonium hydrogencarbonate decomposition can be released from soils. Ammonium remaining in soil is largely adsorbed onto negatively charged clay particles, and will undergo nitrification and denitrification as part of the nitrogen cycle and be taken up by plants via nitrogen fixation (WHO,1986).


WHO (1986). Environmental Health Criteria 54. Ammonia. Published under the joint sponsorhip of the United Nations Environment Programme, the International Labour Organisation and the World Health Organization., 1986.