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Core Viewpoint - The market for biodegradable disposable cups is experiencing rapid growth due to environmental concerns, but consumers find it difficult to distinguish between biodegradable and non-biodegradable products [1][3]. Group 1: Market Trends - Biodegradable disposable cups are marketed as environmentally friendly, often claiming to be made from natural materials like rice husks [3][5]. - A comparative test conducted by the Shanghai Consumer Protection Committee revealed that many products labeled as biodegradable contain non-biodegradable materials like polypropylene (PP) to reduce costs [10][12]. Group 2: Testing and Results - The Shanghai Consumer Protection Committee collected 40 samples of disposable cups for testing, including plastic, paper, and those claiming to be plant-based biodegradable [5]. - One tested cup, which claimed to be biodegradable, remained intact after 20 days, indicating it did not decompose due to the presence of PP plastic [7][8]. Group 3: Safety Concerns - The test results showed that some cups exceeded safety limits for harmful substances, such as 3-chloro-1,2-propanediol, which is linked to serious health risks [16][17]. - Another product, a paper cup, was found to have excessive total fluorine content, which can accumulate in the environment and potentially harm human health [19]. Group 4: Industry Implications - The presence of non-biodegradable materials in products marketed as biodegradable creates confusion for consumers and undermines the green industry [12][14]. - Experts suggest that the rapid development of technology in this sector necessitates updated standards and increased government regulation to ensure product safety and environmental integrity [21][23].