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汞及其化合物对人体的毒性很大,特别是有机汞的毒性更大。汞的污染已成为环境污染中最使人注意的问题,因而在环境保护中列为重点防治的五个有害元素之一。国务院颁布的有害物质暂行排放标准规定烟气中汞的允许排放浓度小于0.01～0.02毫克/米~3。韶关冶炼厂用凡口铅锌矿作(厂元)料,锌精矿含汞高达0.04%,按设计规模每年进入该厂的
Mercury and its compounds are highly toxic to humans, especially organic mercury. The pollution of mercury has become the most notable issue in environmental pollution and is therefore listed as one of the five harmful elements in environmental protection as a key prevention and control project. The State Council promulgated the Provisional Emission Standards for Hazardous Substances, which stipulates that the allowable emission level of mercury in flue gas is less than 0.01-0.02 mg / m³. Shaoguan Smelter with fankou lead-zinc ore (plant yuan) material, zinc concentrate containing mercury as high as 0.04%, according to the scale of the design to enter the plant each year