Objective To determine contents of five heavy metal elements in rice collected from eight areas of Yunnan and analyze the elements distribution characteristics in rice from different areas. Methods The contents of 5 heavy metals including chromium, cadmium, arsenic, lead and mercury in rice were detected by inductively coupled plasma mass spectrometry. The distribution characteristics of heavy metal elements in rice in different areas were analyzed and distinguished by principal component analysis. Results The heavy metal elements in rice from different regions of Yunnan province had different characteristics, and the rate of over-standard was lower, but the detection rate was higher, especially the pollution of total chromium and cadmium was more extensive. Conclusion The content of heavy metals in rice in Yunnan Province is generally at a low level of food safety risks. However, it is still necessary to further control the source of heavy metal pollution in the environment, and to conduct continuous monitoring and risk assessment of heavy metals in rice.
标题：云南不同地区稻谷中5种重金属元素分布特征
英文标题：Distribution characteristics of 5 heavy metal elements in rice in different regions of Yunnan
作者：
赵晓慧 云南省疾病预防控制中心
王瑾 云南省疾病预防控制中心
中文关键词:稻谷,重金属,主成分分析,
英文关键词:rice, heavy matel elements, principal component analysis,
