"Groundwater quality standards" released a new version Index increased 54 (full text attached)

China currently existing "groundwater quality standards" was issued in 1993, 14 years, groundwater pollution of our country with the new changes, water quality monitoring technology has also made great strides. Recently, the Ministry of Land and Water Resources jointly proposed a new version of "groundwater quality standards" officially released, the standard of the original content has been a lot of changes, mainly technical changes are as follows:

WQO increased from 39 GB / T14848-1993 to 93, an increase of 54;

The groundwater quality indicators are divided into conventional and non-conventional indicators index;

Sensory properties and general chemical indicators increased from 17 20 Adding aluminum, sodium sulfide and three indicators; permanganate replaced by oxygen consumption, revised total hardness, iron, manganese, ammonia 4 index;

Toxicology inorganic compound indicators index increased from 16 to 20, an increase of boron, antimony, silver and thallium indicators 4, revised nitrite, iodide, mercury, arsenic, cadmium, lead, beryllium, barium, nickel , cobalt and molybdenum 11 indicators;

Toxicology indicators indicators by the organic compound 2 increased to 49, adding chloroform, carbon tetrachloride, 1,1,1-trichloroethane, trichlorethylene, tetrachlorethylene, methylene chloride, 1 1,2-dichloroethane, 1,1,2-trichloroethane, 1,2-dichloropropane, bromoform, vinyl chloride, 1,1-dichloroethane, 1,2-dichloroethylene, chlorobenzene, o-dichlorobenzene, p-dichlorobenzene, trichlorobenzene (total), benzene, toluene, ethylbenzene, xylene, styrene, 2,4-dinitrotoluene, 2,6-dinitro toluene, naphthalene, anthracene, fluoranthene, benzo (b) fluoranthene, benzo (a) pyrene, polychlorinated biphenyls (total), BHC (lindane), hexachlorobenzene, heptachlor, atrazine , pentachlorophenol, 2,4,6-trichlorophenol phthalate, di (2-ethylhexyl) ester, carbofuran, aldicarb, dichlorvos, methyl parathion, malathion , dimethoate, chlorothalonil, 2,4 tears, chlorpyrifos and glyphosate; DDD DDT and BHC respectively (total amount) and BHC (total) was used instead, and revised;

Radioactive indicators revised total alpha radioactivity;

Amendments to the relevant provisions of the comprehensive evaluation of groundwater quality.

Updated:2018/06/21
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