為瞭解臺灣地區生產之食米中重金屬(鎘、汞、鉛)含量之現況,於101年4至10月間,由各縣市衛生局至其轄區碾米廠採取一、二期作之食米檢體,共計160件,由TFDA與協力衛生局(基隆市、南投縣、台南市)依據行政院衛生署公告方法執行檢驗。160件食米鎘、汞及鉛含量檢測結果,鎘含量平均值為0.04 (未檢出-0.17 ppm),汞含量平均值為0.003(未檢出-0.016 ppm),鉛含量平均值為0.02(未檢出-0.10 ppm),均未超出行政院衛生署公告之『食米重金屬限量標準』(鎘0.4 ppm、汞0.05 ppm及鉛0.2 ppm)。統計91至101年間臺灣地區生產之食米中重金屬鎘、汞、鉛之含量總平均值分別為0.05(未檢出-0.38 ppm)、0.003(未檢出-0.020 ppm)及0.02(未檢出-0.29 ppm)。
In order to investigate the contents of heavy metals (cadmium, mercury and lead) in rice in Taiwan, rice samples from the rice millers were collected by local health bureaus from April to October, 2012. Seventythree samples of the first crop rice and 87 samples of the second crop were analyzed. TFDA and 3 local health bureaus conducted analysis according to the official method. The results showed that the total average contents of cadmium, mercury and lead in rice were 0.04 ppm (N.D.-0.17 ppm), 0.003 ppm (N.D.-0.016 ppm) and 0.02 ppm (N.D.-0.10 ppm), respectively. All rice samples have shown compliance with the regulation set by the Department of Health, Executive Yuan. The heavy metals in rice have been investigated and monitored since 2002. The mean levels of cadmium, mercury and lead in rice were 0.05 ppm, 0.003 ppm, 0.02 ppm respectively.