Sanitation Flashcards
Most important greenhouse gas
Water vapor
Time lapse from collection to examination should not exceed
30 hours
Dental fluorosis
> 1.0-1.5 mg/L
Adverse effect of nitrates in drinking water
infantile methemoglobinemia
Coliform count < 50
chlorination alone
Coliform count: 50-5,000
standard complete treatment
Coliform count: 5,000-50,000
double treatment
Coliform count > 50,000
look for another source
Major impediment to water disinfection
turbidity
Adequate spacing in a house
at least 50 square feet per person for the bedroom
Adequate air movement in a house
15-25 ft/min
Adequate humidity in a house
50-80%
Adequate window-to-floor area in a house
10%
Adequate water supply for domestic use
15-20 gallons per capital per day
Most important water examination
Bacteriological test
