Abstract: 30 coffee peel samples were collected from five major coffee producing areas in Yunnan Province, including Baoshan City, Pu'er City, Dehong Dai and Jingpo Autonomous Prefecture, Lincang City, and Xishuangbanna Dai Autonomous Prefecture. The content of lead, total arsenic, cadmium, total mercury, and chromium was measured. At the same time, a field survey was conducted on the consumption of coffee peel among 495 residents in Yunnan Province, and the intake levels and potential risks of five heavy metals were evaluated. The results showed that the daily intake of five heavy metals in the coffee peel of residents in Yunnan Province was lower than the evaluation value. Under P₉₅, the daily intake of lead, total mercury, cadmium, total arsenic, and chromium were 0.034 00, 0.001 90, 0.009 60, 0.018 00, and 0.046 00 μg/kg, and the results were all lower than their respective evaluation values, indicating that the risk of the five heavy metals ingested through coffee peel to human health was at an acceptable level. The contribution rates of daily intake of five heavy metals and daily intake under P₉₅ were chromium>lead>total arsenic>cadmium>total mercury. The contribution rates of daily intake of chromium, lead, and total arsenic and daily intake under P₉₅ were 93.35% and 89.49%, respectively. The daily intake of heavy metals such as lead, total arsenic, cadmium, total mercury, and chromium in the coffee peel of residents in Yunnan Province was generally low. It was recommended to further conduct health risk assessments of heavy metals for consumer groups of key regions.

Key words: coffee peel, heavy metals, health risk assessment, Yunnan Province