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In order to support the implementation of relevant water pollutant discharge standards and soil pollution risk management and control standards, the Ministry of Ecology and Environment recently issued the "Dilution Multiplying Method for the Determination of Water Quality and Color" (HJ 1182-2021), "Water Quality Dimethoate, Methamidophos, Acetyl Determination of Methamidophos and Phoxim: Liquid Chromatography-Triple Quadrupole Mass Spectrometry (HJ 1183-2021), "Determination of 6 Phthalate Compounds in Soils and Sediments by Gas Chromatography-Mass Spectrometry" ( HJ 1184-2021) and other 3 national ecological environment standards
.
The "Water Quality and Chromaticity Measurement Dilution Multiplying Method" (HJ 1182-2021) is the first release.
The dilution factor method in the "Water Quality Chromaticity Measurement" (GB 11903-89) has been revised, which is applicable to the chromaticity of domestic sewage and industrial wastewater.
Monitoring, supporting the implementation of 22 water pollutant discharge standards including the "Integrated Wastewater Discharge Standard" (GB 8978-96)
.
Compared with the original method, the standard stipulates the dilution method, sample storage conditions, analysts, environmental conditions, etc.
"Water quality determination of omethoate, methamidophos, acephate, phoxim" (HJ 1183-2021) is the first release, suitable for surface water, groundwater, domestic sewage And determination of 4 kinds of organophosphorus pesticides in industrial wastewater, including omethoate, methamidophos, acephate and phoxim
.
Omethoate, acephate, and phoxim are the characteristic pollutant control indicators of the organophosphorus pesticide production industry.
The "Determination of 6 Phthalate Esters in Soil and Sediment Gas Chromatography-Mass Spectrometry" (HJ 1184-2021) is the first release, which is suitable for the determination of 6 phthalate compounds in soil and sediment.
, To support the implementation of "Soil Environmental Quality Construction Land Soil Pollution Risk Control Standards (Trial)" (GB 36600-2018) and other implementations
.
With the development of industrial production and the widespread use of plastic products, phthalate compounds generally exist in environmental media such as soil, bottom mud, organisms, and enter organisms through drinking, eating, skin contact, and breathing
The issuance and implementation of the above three standards is of great significance for further improving the ecological environment monitoring standard system, standardizing ecological environment monitoring behaviors, improving the quality of environmental monitoring data, and serving ecological environment supervision and law enforcement.
