“水银体温计血压计明年起禁产”上热搜，1克汞到底有多“毒”？

Core Viewpoint - The production of mercury-containing thermometers and blood pressure monitors will be banned starting January 1, 2026, as part of China's commitment to the Minamata Convention on Mercury, which aims to reduce mercury exposure and its harmful effects on health and the environment [1][2]. Group 1: Regulatory Changes - The ban on the production of mercury-containing thermometers and blood pressure monitors was announced in a notification by the National Medical Products Administration in October 2020, with the regulation stemming from the Minamata Convention that took effect in China on August 16, 2017 [1]. - Existing products with valid medical device registration certificates can continue to be used until their expiration, which cannot exceed December 31, 2025 [1]. Group 2: Health Risks of Mercury - Mercury is classified as one of the top ten harmful chemicals by the World Health Organization, posing significant health risks, particularly to the nervous system, respiratory system, and developmental health of fetuses and young children [3]. - Long-term exposure to mercury, even at low concentrations, can lead to serious health issues, including cognitive and motor function impairments [3]. Group 3: Alternatives to Mercury Thermometers - Electronic thermometers are now considered more accurate and safer than mercury thermometers, with modern medical-grade electronic thermometers meeting strict accuracy standards [6][7]. - The convenience and safety of electronic thermometers, which do not pose risks of mercury poisoning or glass injuries, are key reasons for the phase-out of mercury thermometers [7]. Group 4: Broader Context of Mercury Regulation - The ban on mercury-containing thermometers is part of a larger regulatory framework that has already prohibited the production and import of various mercury-containing products since January 1, 2021, including batteries and certain cosmetics [8]. - Additionally, by August 16, 2032, China will completely prohibit the mining of primary mercury ore, furthering its commitment to reducing mercury use [9].