董钧铭, 王灵秋, 徐林, 唐礼营. 安顺市27种当地种植蔬菜中铅含量分析[J]. 环境与职业医学, 2015, 32(10): 960-962. DOI: 10.13213/j.cnki.jeom.2015.14781
引用本文: 董钧铭, 王灵秋, 徐林, 唐礼营. 安顺市27种当地种植蔬菜中铅含量分析[J]. 环境与职业医学, 2015, 32(10): 960-962. DOI: 10.13213/j.cnki.jeom.2015.14781
DONG Jun-ming , WANG Ling-qiu , XU Lin , TANG Li-ying . Lead Concentrations of 27 Local Grown Vegetables in Anshun City[J]. Journal of Environmental and Occupational Medicine, 2015, 32(10): 960-962. DOI: 10.13213/j.cnki.jeom.2015.14781
Citation: DONG Jun-ming , WANG Ling-qiu , XU Lin , TANG Li-ying . Lead Concentrations of 27 Local Grown Vegetables in Anshun City[J]. Journal of Environmental and Occupational Medicine, 2015, 32(10): 960-962. DOI: 10.13213/j.cnki.jeom.2015.14781

安顺市27种当地种植蔬菜中铅含量分析

Lead Concentrations of 27 Local Grown Vegetables in Anshun City

  • 摘要: 目的 通过对安顺市部分种植蔬菜中铅(Pb)含量的检测, 了解当地种植蔬菜中Pb 的污染状况。

    方法 采集该市城郊区域叶类、芸薹类、鳞茎类、瓜茄类、块根茎、豆类27 个蔬菜品种共417 份种植蔬菜样本, 同时采集当地灌溉水及土壤样本;分别采用石墨炉原子吸收分光光度法检测样本中Pb 的含量。

    结果 蔬菜中Pb 平均含量为(0.122& #177;0.062)mg/kg, 以鳞茎类和叶类蔬菜超标率最高, 分别为6.10%和4.70%, 其余种类蔬菜超标率均较低;超标蔬菜主要集中在城郊公路沿线附近;27 个蔬菜品种中Pb 污染等级菠菜、韭菜、芹菜、大蒜苗、茄子及红萝卜为轻度污染, 其余均为优良。

    结论 安顺市城郊区域种植蔬菜中部分品种存在轻度的Pb 污染, 公路附近种植蔬菜污染更明显。

     

    Abstract: Objective To assess the lead pollution in local vegetables through measuring the lead concentrations of selected vegetables grown in Anshun City.

    Methods We collected 417 samples from 27 kinds of vegetables (including leafy, brassica, bulb, fruit, root, and bean vegetables), as well as irrigation water samples and soil samples, in suburb areas of Anshun. Graphite furnace atomic absorption spectrophotometry was used to measure lead concentrations.

    Results The average concentration of lead in the vegetables was (0.122& #177;0.062) mg/kg. The leading unqualified rates were found in bulb (6.10%) and leafy (4.70%) vegetables; unqualified vegetables were mainly concentrated along highways in the suburbs. Among the 27 kinds of vegetables, spinaches, chives, celeries, garlic bolts, eggplants, and carrots were graded as mildly polluted, and the rest were good.

    Conclusion A fraction of local grown vegetables in Anshun suburbs are identified with mild lead pollution, and those near highways are more polluted.

     

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