WATER BORNE DISEASES are those which are transmitted by contaminated water. Water is a very good carrier of micro organisms. Communicable diseases which may be transmitted by water include bacterial, viral and protozoan infections
The diseases caused by bacterial infections are
a. Typhoid fewer
c. Bacillary dysentery
a. Infectious hepatitis(jaundice)
b. Polio myelitis
a. Amoebic dysentery (Amoebiasis)
Particles of silt and clay
I)Carbonates and bicarbonates of calcium and mg.
ii)Sulphates and chortles of ca and mg.
iii)carbonates and bicarbonates of sodium
v)chlorides of Na
vi)Fluorides of Na
Hardness & alkalinity
Hardness and corrosion
Excess over 50mg/lit
Methenoglubanemiao r blue babies. Brackish taste
Excess over 1.5mg/L causes Fluor sis.
Taste colour and hardness
Taste and odour
Dead animals, hairs, insects, etc..
Large Quantities of albuminoidal nitrogen with little quantities of ammonia and chlorides.
Large quantities of Albuminoidal nitrogen
Acidity, taste and colour Contamination
Pathogens, contamination due to sewage. Etc…