Khaled B M, Sina Adda Ann, Rana Md Suman, Alam S M Shamiul, Numan Abdullah Al, Shammi Maria Tabassum, Parvin Fatima, Naznin Tamanna, Hossain Md Mozaffor, Annana Refat Pervin
Department of Agro Product Processing Technology, Jashore University of Science and Technology, Jashore-7408, Bangladesh.
Bangladesh Food Safety Authority, Dhaka-1000, Bangladesh.
Heliyon. 2024 May 21;10(11):e31627. doi: 10.1016/j.heliyon.2024.e31627. eCollection 2024 Jun 15.
Heavy metal concentrations of Pb, Cd, Cr, and Cu leaching from single-use plastic cups were identified, and the risks associated with them were assessed in real time (up to 10 min). All samples (tea, carbonated beverage, and lassi) were placed in disposable plastic cups and held for less than 1 min, 5 min, and 10 min, respectively. Prior to digestion, the solids were ashed in a muffle furnace at 550 °C for 30 min. The filtrates were then tested for heavy metals. The samples were all confirmed to be contaminated with heavy metals. Heavy metals leached from the plastic cups in the following order: Cu > Pb > Cr > Cd. The samples' HI values were less than one, hence there was no evidence of a non-carcinogenic risk. The ILCR values for this heavy metal contamination in samples exceed 10, indicating a high carcinogenic risk. Lassi poses the highest possible carcinogenic risk. A rise in temperature and a drop in pH also resulted in heavy metal migration. Heavy metal leaching from plastic cups poses a serious health risk due to its toxicity. The proposed legislation should prohibit or restrict the serving of warm and hot beverages in plastic cups.
确定了一次性塑料杯中铅、镉、铬和铜的重金属浸出浓度，并实时评估了与之相关的风险（长达10分钟）。所有样品（茶、碳酸饮料和拉西酸奶）分别置于一次性塑料杯中，放置时间分别少于1分钟、5分钟和10分钟。消化前，将固体在马弗炉中于550℃灰化30分钟。然后对滤液进行重金属检测。所有样品均被证实受到重金属污染。塑料杯中重金属的浸出顺序为：铜>铅>铬>镉。样品的危害指数值小于1，因此没有非致癌风险的证据。样品中这种重金属污染的个体终身致癌风险值超过10，表明致癌风险很高。拉西酸奶带来的致癌风险最高。温度升高和pH值降低也会导致重金属迁移。由于其毒性，塑料杯中重金属的浸出对健康构成严重风险。拟议的立法应禁止或限制用塑料杯盛装温热和热饮。
