The Ministry of Ecology and Environment issued 15 national environmental protection standards including the "Determination of aldehydes and ketones from stationary pollution sources-Solution absorption-High performance liquid chromatography"

Since its establishment, the Ministry of Ecology and Environment has resolutely implemented the State Council’s institutional reform spirit, strengthened its unified monitoring and evaluation responsibilities, and continued to improve the national environmental protection standard system

The "Technical Specifications for Groundwater Environmental Monitoring" (HJ 164-2020) is the first revision, based on the "Technical Specifications for Groundwater Environmental Monitoring" (HJ/t 164-2004), combined with more than ten years of updated groundwater pollutant monitoring methods and The actual application experience across the country has been revised and improved, and the layout, construction and management of monitoring wells have been added to meet the current needs of groundwater environmental monitoring

Ten standards such as "Technical Specifications for Environmental Monitoring of Nearshore Sea Areas (Part 1~Part 10)" (HJ 442.

The "Solution Absorption-High Performance Liquid Chromatography Method for the Determination of Aldehydes and Ketones in Exhaust Gases from Stationary Pollution Sources" (HJ 1153-2020) is the first release, which is suitable for the determination of 12 aldehydes and ketones in exhaust gas from stationary pollution sources

"Ambient Air Aldehydes and Ketones Determination of Solution Absorption-High Performance Liquid Chromatography" (HJ 1154-2020) is the first release, which is suitable for the determination of 16 aldehydes and ketones in ambient air and fugitive emissions

Compared with the "Glass Electrode Method for the Determination of pH Value of Water Quality" (HJ 1147-2020) and the "Glass Electrode Method for the Determination of pH Value of Water Quality" (GB 6920-86), according to actual work needs, the types of electrodes are increased; at the same time, to ensure the accuracy of the data , Make stricter regulations on the timeliness of sample storage, refine the interference factors and elimination methods

"Water Quality Determination of Nitrophenolic Compounds by Gas Chromatography-Mass Spectrometry" (HJ 1150-2020) is the first release, applicable to the determination of 12 nitrophenolic compounds in surface water, groundwater, domestic sewage, industrial wastewater and seawater.

The newly issued 15 national environmental protection standards effectively meet the needs of China’s economic and social development and ecological environment supervision, leading the development of environmental monitoring technology for the atmosphere, water and groundwater, and coastal waters, serving the ecological environment management work, and improving the ecological environment monitoring data Quality, in-depth fight for pollution prevention and control to provide strong technical support