The Ministry of Ecology and Environment has issued five national ecological and environmental standards, including “Determination of 28 Organophosphorus Pesticides in Water—Gas Chromatography–Mass Spectrometry.”

　　To support the implementation of relevant water quality standards and water pollutant discharge standards, the Ministry of Ecology and Environment recently issued the “Water Quality—28 Organophosphorus Compounds.” Pesticide The five national ecological and environmental standards, including “Determination of [Substance] by Gas Chromatography–Mass Spectrometry” (HJ 1189-2021), “Water Quality—Identification of Sterilization Biological Indicators (Bacillus subtilis var. niger) by Biological Assay” (HJ 1190-2021), “Water Quality—Determination of Azides by Spectrophotometry” (HJ 1191-2021), “Water Quality—Determination of Nine Alkylphenol Compounds and Bisphenol A by Solid-Phase Extraction/High-Performance Liquid Chromatography” (HJ 1192-2021), and “Water Quality—Determination of Indium by Graphite Furnace Atomic Absorption Spectrophotometry” (HJ 1193-2021).
　　Water Quality: 28 Organophosphorus Compounds Pesticide “The Determination of 28 Organophosphorus Compounds in Surface Water, Groundwater, Seawater, Domestic Wastewater, and Industrial Wastewater by Gas Chromatography–Mass Spectrometry” (HJ 1189-2021), which is being published for the first time, applies to the analysis of 28 organophosphorus compounds in these matrices. Pesticide Determination of [substance]. This standard is applicable to a wide range of analytes, delivers excellent separation performance, and supports the implementation of water quality standards such as the “Surface Water Environmental Quality Standard” (GB 3838-2002) and the “Groundwater Quality Standard” (GB/T 14848-2017), thereby providing… Pesticide It provides monitoring‑technology support for the development and revision of industry‑specific water pollutant discharge standards, as well as for the refined management of enterprise pollutant emissions.
　　“Water Quality — Identification of Sterilization Biological Indicators (Bacillus subtilis var. niger) — Biological Assay Method” (HJ 1190-2021), which is being issued for the first time, is applicable to the evaluation of the sterilization efficacy of wastewater from microbiological laboratories. The promulgation and implementation of this standard will support biological testing of wastewater sterilization in microbiological laboratories, thereby facilitating the effective enforcement of the Biosecurity Law, strengthening biosecurity risk prevention, and protecting the ecological environment.
　　“Determination of Azide in Water—Spectrophotometric Method” (HJ 1191-2021) is being issued for the first time and is applicable to the determination of azide in surface water, groundwater, domestic sewage, and industrial wastewater. Azide is highly toxic and poses significant hazards. The promulgation and implementation of this standard will facilitate refined management and control of azide as a water pollutant in relevant industrial discharges, playing an important role in protecting the ecological environment and safeguarding human health.
　　“Determination of Nine Alkylphenol Compounds and Bisphenol A in Water—Solid-Phase Extraction/High-Performance Liquid Chromatography” (HJ 1192‑2021) is being issued for the first time. It is applicable to the determination of nine alkylphenol compounds and bisphenol A in surface water, groundwater, domestic sewage, and industrial wastewater, and can support the implementation of water pollutant discharge standards such as the “Emission Standard for Pollutants from the Petrochemical Industry” (GB 31571‑2015). Alkylphenol compounds and bisphenol A are typical endocrine disruptors, characterized by toxicity, persistence, and bioaccumulation. China has already banned their use in the production of relevant products and has established limit values in industry-specific pollutant discharge standards. The promulgation and implementation of this standard will help strengthen the control of water pollutant discharges and provide a reliable analytical method to support the management and remediation of alkylphenol and bisphenol A contamination.
　　“Water Quality — Determination of Indium — Graphite Furnace Atomic Absorption Spectrophotometry” (HJ 1193-2021) is being issued for the first time and is applicable to the determination of indium in surface water, groundwater, and industrial wastewater. With the rapid development of high‑tech industries, the use of indium is becoming increasingly widespread, highlighting the need to monitor the ecological impacts of indium‑containing pollutants. This standard offers excellent selectivity and high sensitivity, while the associated instruments and equipment are relatively affordable, and the analytical costs are moderate. The promulgation and implementation of this standard will provide technical support for the determination of indium in water samples from aquatic environments and related industries.
　　The promulgation and implementation of the aforementioned five standards are of great significance for further improving the ecological and environmental monitoring standards system, standardizing ecological and environmental monitoring practices, enhancing the quality of environmental monitoring data, supporting ecological and environmental supervision and law enforcement, and promoting ecological and environmental protection while safeguarding human health.

Source: Ministry of Ecology and Environment Author: Ministry of Ecology and Environment