陇南市茶叶中金属和类金属元素的现状调查研究

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Investigation and Research on the Current Situation of Metals and Metalloids in Tea in Longnan City

ZHAO Dongqing， MA Jian， ZHAO Liang （Longnan Center for Disease Control and Prevention，Longnan 746ooo， China）

Abstract： To investigate the content levels of metals and metallids in tea inLongnan city，and to understand their pollution status and potential risks.Tea samples from 2022 to 2024 were collcted from multiple tea producing areas in Longnancityand thecontents of 26 metals and metaloids such as lead，cadmium， mercury，arsenic，copper， chromium， manganese and aluminum were determined by inductively coupled plasma mass spectrometry. The results showed that there was no excessive phenomenon of metalic and metallid-like elements in the tea producing area， but it still needs to bepaid enough attention and coresponding measures should be taken to prevent and control it to ensure the quality and safety of tea.

Keywords： tea; metals and metalloid elements; investigation

陇南市属于长江流域，气候温润，土壤肥沃，为茶树的生长提供了良好的自然环境。（剩余4163字）