Maximum Permissible Concentration of Various Inorganic Elements Present in Potable Water As per WHO & BIS Standards

Maximum Permissible Concentration of Various Inorganic Elements Present in Potable Water As per WHO & BIS Standards

13th November 2020 0 By Malay Sautya

Maximum Permissible Concentration of Various Inorganic Elements Present in Potable Water

Following are the values of maximum permissible concentration of various inorganic elements present in potable water as per the World Health Organization (WHO) and Bureau of Indian Standards (BIS)

S.NoInorganic ElementMaximum Permissible Concentration in Potable Water as per WHO in mg/LMaximum Permissible Concentration in Potable Water as per BIS in mg/L
1.Arsenic (As)0.010.01
2. Boron (B)0.31.0
3. Antimony (Sb)0.05Not Specified (N.S)
4.Cadmium (Cd)0.0030.01
5. Barium (Ba)0.70N.S
6.Beryllium (Be)N.SN.S
7.Lead (Pb)0.010.05
8. Cobalt (Co)N.SN.S
9.Lithium (Li)N.SN.S
10.Chromium (Cr)0.050.05
11.Copper (Cu)N.S0.05
12.Thallium (Tl)N.SN.S
13. Fluoride (F)1.51.0
14.Sodium (Na)N.SN.S
15.Molybedenum (Mo)N.SN.S
16.Cyanide (CN)0.070.05
17.Mercury (Hg)0.0010.001
18.Ammonia (NH3)N.SN.S
19. Nickel (Ni)0.02N.S
20.Nitrates (NO3)11.345.0
21.Nitrites (NO2 )0.91N.S
22.Silver (Ag)N.SN.S
23.Zinc (Zn)N.SN.S
24.Selenium (Se)0.010.01
25.Phenolic compounds as phenol (C6H5OH)N.S0.001

Read More:

Water Treatment – MCQ

Secondary Sedimentation Tank

Primary Treatment Process of Sewage