發(fā)布時間：2019-04-20 09:56

【摘要】：目的對安順市城郊零散蔬菜中重金屬的含量進行檢測分析,評價重金屬經(jīng)蔬菜途徑攝入的健康風(fēng)險。方法對安順市城郊零散蔬菜有代表的5個點27種蔬菜用火焰原子吸收光譜法、石墨爐分光光譜法及原子熒光光譜法進行鉛、砷、鉻、鎘、銅元素含量測定,采用國家衛(wèi)生標準限值計算單項污染指數(shù)和綜合污染指數(shù)評價蔬菜重金屬污染狀況,并參照國際放射防護委員會(ICRP International Commission on Radiological Protection)給出的限定值為標準對安順市居民因攝入含鉛、砷、鉻、鎘、銅蔬菜引起的健康風(fēng)險進行評價。結(jié)果 As、Cu含量均低于國家限定值(GB14935-2012),部分Pb、Cd、Cr含量超出國家限定值,Pb為主要污染元素。安順市郊區(qū)部分零散蔬菜受到輕度污染,以鱗莖類蔬菜為主。重金屬污染的健康危害平均個人年風(fēng)險(a-1)中:化學(xué)致癌物鎘(Cd)、砷(As)、鉻(Cr)分別為1.28×10-8、7.72×10-9、2.80×10-7;化學(xué)非致癌物中鉛(Pb)、銅(Cu)分別為7.45×10-9、1.01×10-8,均低于國際放射防護委員會ICPR標準5.0×10-5。結(jié)論安順市居民經(jīng)本土蔬菜途徑攝入重金屬引起的人體健康風(fēng)險較低,不會對暴露人群構(gòu)成明顯的危害。
[Abstract]:Aim to detect and analyze the contents of heavy metals in scattered vegetables in the suburbs of Anshun and evaluate the health risk of heavy metals ingestion through vegetable pathway. Methods the contents of lead, arsenic, chromium, cadmium and copper were determined by flame atomic absorption spectrometry, graphite furnace spectrometric method and atomic fluorescence spectrometry for 27 kinds of vegetables represented by scattered vegetables in the suburb of Anshun city, and the contents of lead, arsenic, chromium, cadmium and copper were determined by flame atomic absorption spectrometry, graphite furnace spectrophotometry and atomic fluorescence spectrometry. The pollution status of heavy metals in vegetables was evaluated by calculating the single pollution index and the comprehensive pollution index using the national health standard limit value. The health risk caused by ingestion of vegetables containing lead, arsenic, chromium, cadmium and copper was evaluated in Anshun city by referring to the limit value given by the International Radiological Protection Commission (ICRP International Commission on Radiological Protection). Results the content of As,Cu was lower than the national limit value (GB14935-2012), and some of the Pb,Cd,Cr content exceeded the national limit value. Pb was the main pollution element. Some scattered vegetables in the suburbs of Anshun were slightly polluted, mainly bulb vegetables. The average personal annual risk of health hazards caused by heavy metal pollution (a): chemical carcinogens CD-(Cd),-arsenic-(As),-Cr-(Cr) were 1.28 脳 10 ~ (8), 7.72 脳 10 ~ (9) and 2.80 脳 10 ~ (7), respectively. The Pb-(Pb),-Cu-(Cu) values in chemical non-carcinogens were 7.45 脳 10 ~ (9) and 1.01 脳 10 ~ (- 8) respectively, which were lower than those of ICPR standard 5.0 脳 10 ~ (- 5). Conclusion the risk of human health caused by heavy metal ingestion through local vegetable in Anshun city is low, and it will not cause obvious harm to exposed population.
【作者單位】： 安順市疾病預(yù)防控制中心;安順學(xué)院;
【基金】：市級科技計劃項目基金項目,安市科合[2013(8)號]
【分類號】：R155.5

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