Monthly variations of haloacetic acids in drinking water by GC/MS
Conference
·
OSTI ID:210673
- Environmental Health Directorate, Ottawa (Canada)
In a national survey of 53 drinking water plants in Canada, haloacetic acids (HAA) were identified as major disinfection by-products (DBPs) and were found in all the chlorinated drinking water supplies examined. The HAA levels were observed to vary with season (summer and winter), water treatment practice (chlorination, chloramination and ozonation) and distance from the treatment plant. In an effort to understand better the dynamics of HAA formation, three drinking water plants that used different disinfectant combinations (chlorine - chlorine, chlorine chloramine and ozone - chlorine) were studied each month (over a period of I year, 1994) at five locations within each supply system. Three HAA (mono-(MCAA), di-(DCAA) and tri-(TCAA) chloroacetic acids) were monitored in the present study, however, MCAA were consistently found at lower levels than DCAA and TCAA; only the DCAA and TCAA results are presented here.
- OSTI ID:
- 210673
- Report Number(s):
- CONF-9505261--
- Country of Publication:
- United States
- Language:
- English
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