Relationship between Combined Chlorine (inactive chlorine) and Thermotolerant (Faecal) Coliforms Bacteria in Drinking Water among some Neighborhoods of Al-Najaf City

Abstract

Drinking water must not have a special taste or odor, be pure, constant at chemical compound, and not contain pathogenic bacteria, parasites and toxic substances. In this cross-sectional study was carried out for tested some of Iraqi drinking water parameters for detect if a present correlation between of combined chlorine (in active chlorine) and thermotolerant (faecal) coliforms the indicator bacteria in drinking water of some neighbourhoods in Al-Najaf city, according to recommendations by the World Health Organization (WHO) and Iraqi water parameters in assessment of drinking water quality.