The New Standard for Drinking Water

Table 6

Toxicological indicators of the harmlessness of drinking water chemical composition1∗.

Indicator	Measurement units	Norm, not more than
		Water of systems of centralized drinking water supply	Water of uncentralized drinking water additionally purified (unbottled, bottled)
Inorganic components
Aluminum (Al)	mg/dm^3	0.2 (0.5)^2*	Absence
Ammonia (by NH4^+)	mg/dm^3	0.5 (1.5)^2*	Ditto
Barium (Ba)	mg/dm^3	0.1	0.1
Beryllium (Be)	mg/dm^3	0.0002	Absence
Boron (B)	mg/dm^3	0.5	Ditto
Cadmium (Cd)	mg/dm^3	0.001	“ ”
Arsenic (As)	mg/dm^3	0.01	“ ”
Nickel (Ni)	mg/dm^3	0.1	“ ”
Nitrates (by NO3^−)	mg/dm^3	45	5
Nitrites (by NO2^−)	mg/dm^3	0.1	0.02
Perchlorates (ClO4^−)	mg/dm^3	0.01	Absence
Mercury (Hg)	mg/dm^3	0.0005	Ditto
Leas (Pb)	mg/dm^3	0.01	“ ”
Selenium (Se)	mg/dm^3	0.01	“ ”
Strontium (Sr)	mg/dm^3	7	2
Stibium (Sb)	mg/dm^3	0.005	Absence
Thallium (T1)	mg/dm^3	0.0001	Ditto
Fluorides (F^−) for climatic region:	mg/dm^3
II		1.5	1.5
III		1.2	1.2
IV		0.7	0.7
Total chromium (CCr)	mg/dm^3	0.05	Absence
Cyanides (CN^−), in particular cyanogen chloride	mg/dm^3	0.05	Ditto
Organic components
Benz(a)pyrene	mg/dm^3	0.00001	Absence
Benzol	mg/dm^3	0.001	Ditto
Pesticides (sum)3∗	mg/dm^3	0.0005	“ ”
Synthetic anionoactive surface-active substances (ASAS)	mg/dm^3	0.1	“ ”
Trichloroethylene and tetrachloroethylene (sum)	mg/dm^3	0.01	“ ”
Tetrachloride carbon	mg/dm^3	0.002	“ ”
Integral indicators
Permanganate oxidizability	mg O/dm^3	2	0.75
Total organic carbon	mg C/dm^3	4	1.5

1∗When in drinking water several chemical substances are detected, which refer to the 1st and 2nd classes of safety, and have sanitary-toxicological indicators of hazard, the sum of relationships of concentrations of every one of them determined in water to the standard should not exceed 1.
2∗The value in brackets may be set only by the ruling of the Chief State Sanitary Physician in the corresponding area for the specific system of drinking water supply based on the evaluation of the sanitary-epidemiological state in a town and the technology of drinking water treatment used with the account of the specific situation.
3∗Pesticides (sum): organic insecticides, herbicides, fungicides, nematicides, acaricides, algicides, bactericides, virucides, rodenticides, slimicides, bound products (in particular growth regulators), and then metabolites and degradation products. The program of control involves only these pesticides, which, most likely, may be contained in this water.