Core Viewpoint - The article discusses the release of nine national ecological environment standard drafts for public consultation, focusing on detection methods for harmful substances such as pesticides, aniline compounds, and dioxins in water quality, air, and solid waste [1][2]. Group 1: Water Quality Standards - The draft for the determination of six amide pesticides and two aniline compounds in water quality using gas chromatography is the first of its kind [4]. - The standard specifies that the detection limits for the six amide pesticides and two aniline compounds are 0.002 mg/L, with a measurement limit of 0.008 mg/L when the sample volume is 100 mL and the final volume is 1.0 mL [5]. - A new standard for measuring the permanganate index in surface and groundwater using continuous flow-spectrophotometry has been introduced, with a detection limit of 0.08 mg/L and a measurement limit of 0.32 mg/L [6][9]. Group 2: Toxicity and Pesticide Measurement - The acute toxicity measurement standard using luminescent bacteria has been revised to include updated methodologies and definitions, ceasing the implementation of the previous standard from 1995 [10][12]. - A new standard for measuring six chlorinated phenoxycarboxylic acid herbicides and mefenacet using gas chromatography-mass spectrometry has been established, with detection limits of 0.3 µg/L and measurement limits of 1.2 µg/L [13][14]. Group 3: Organic Phosphorus Pesticides and Air Quality - The standard for measuring eight organic phosphorus pesticides using high-performance liquid chromatography-triple quadrupole mass spectrometry has been introduced, with detection limits ranging from 0.11 µg/L to 0.20 µg/L and measurement limits from 0.44 µg/L to 0.80 µg/L [19][21]. - A new standard for measuring ten acetate esters in environmental air and waste gas using solid adsorption-solvent desorption/gas chromatography has been released, with detection limits of 0.02 mg/m³ and measurement limits of 0.08 mg/m³ for air samples [22][23]. Group 4: Ammonia and Dioxin Measurement - The ammonia measurement standard in environmental air and waste gas using gas phase molecular absorption spectroscopy has been established, with detection limits of 0.02 mg/m³ and measurement limits of 0.08 mg/m³ for air samples [24]. - The dioxin measurement standard for solid waste using isotope dilution/high-resolution gas chromatography-high-resolution mass spectrometry has been revised, with detection limits for dioxins in solid waste ranging from 0.2 ng/kg to 1 ng/kg and measurement limits from 0.8 ng/kg to 4 ng/kg [25][28].

导读： 生态环境部发布4项国家生态环境标准征求意见稿，涉及水质、土壤监测方法，公开征求意见至2025年7月28日。 特别提示 微信机制调整，点击顶部"仪器信息网" → 右上方"…" → 设为 ★ 星标，否则很可能无法看到我们的推送。 为贯彻《中华人民共和国环境保护法》，规范生态环境监测工作，我部组织编制了《水质 溶解氧的测定 荧光淬灭法》 等 4 项 国 家 生 态 环 境 标 准 征 求 意 见 稿 ， 现 公 开 征 求 意 见 。 标 准 征 求 意 见 稿 及 其 编 制 说 明 ， 可 登 录 我 部 网 站 （h tt p ://www.me e . g o v. c n）"意见征集"栏目检索查阅。 各机关团体、企事业单位和个人均可提出意见和建议。请于2 0 2 5年7月2 8日前将意见建议书面反馈我部，并注明联系人 及联系方式，电子文档请同时发送至联系人邮箱。 联系人：生态环境监测司 滕曼 电话：（0 1 0）6 5 6 4 6 2 6 2 7 .《土壤和沉积物 总铜、总铅、总铬、总镉、总镍的测定 石墨炉原子吸收分光光度法（征求意见稿）》编制说明 邮箱：z h i g u a n c h u@m ...