For a full description of the review process, please consult the introduction of the full draft Assessment Report. Also, please note the cut-off date for consideration of relevant literature taken into account for the report. Chloramines and free chlorine are released to the Canadian environment by municipal and industrial sources.
Conditions favouring the formation of trichloramine are rare.
Organic chloramines are also produced if certain organic nitrogen compounds, including amino acids and nitrogen heterocyclic aromatics, are present. Risk assessments of organic chloramines and FRC were beyond the scope of this assessment. In 1996, approximately 6.9 million Canadians were serviced by chloraminated drinking water. These facilities released approximately 1.3 million kilograms of TRC to surface waters. In 1996, there were at least 43 industrial facilities chlorinating effluents or cooling waters or chlorinating to control biological fouling and not dechlorinating prior to discharge.