一级致癌物超标9000多倍！这些首饰戴久了有害健康

Core Viewpoint - The article highlights the health risks associated with wearing alloy jewelry, particularly the occurrence of "jewelry dermatitis" due to allergic reactions from metals like nickel and cadmium found in low-quality jewelry [1][3][5]. Material Quality and Standards - The occurrence of jewelry dermatitis is closely linked to the materials used in jewelry, with heavy metals such as nickel and cadmium being primary culprits [5][14]. - Many jewelry items marketed as gold or silver may actually contain undetectable heavy metal components, leading to skin issues for consumers [5][12]. - A market investigation revealed that many jewelry pieces are sold at low prices, with wholesale prices for bangles ranging from tens to hundreds of yuan, which raises concerns about material quality [5][12]. Testing and Findings - A study conducted on 21 jewelry samples showed that 17 items failed to meet the required thickness standards for gold and silver plating, with some items having gold layers as thin as 0.03 microns, far below the 0.5-micron standard [12][11]. - One sample labeled as "silver" had a silver layer of only 0.24 microns, significantly below the 2-micron requirement, indicating a lack of compliance with industry standards [12][9]. - Alarmingly, a sample from a Guangzhou market showed cadmium levels exceeding the legal limit by over 9000 times, posing serious health risks [14][17]. Consumer Misleading Practices - Some merchants falsely label their products with gold and silver markings, misleading consumers about the actual metal content [19][21]. - The presence of misleading purity marks like "999" and "S925" on alloy jewelry does not guarantee the quality or safety of the products, as many do not meet the claimed standards [19][22]. - Consumers are advised to be cautious about the potential health risks associated with low-cost jewelry, particularly regarding material mislabeling and heavy metal contamination [24].