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首页> 外文期刊>Environmental Science & Technology >Arsenic Concentrations, Speciation, and Localization in 141 Cultivated Market Mushrooms: Implications for Arsenic Exposure to Humans
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Arsenic Concentrations, Speciation, and Localization in 141 Cultivated Market Mushrooms: Implications for Arsenic Exposure to Humans

机译：141种耕作蘑菇中的砷浓度，形态和本地化：对人体砷的暴露意义

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摘要

Mushrooms accumulate arsenic (As), yet As concentrations, speciation, and localization in cultivated mushrooms across a large geographic distribution are unknown. We characterized 141 samples of nine species from markets in nine capital cities in China, with samples of Lentinula edodes, Pleurotus ostreatus, and Agaricus bisporus being analyzed for As speciation and localization. Total As concentrations ranged from 0.01 to 8.31 mg kg(-1) dw, with A. bisporus (0.27-2.79 mg kg(-1)) containing the most As followed by P. ostreatus and L. edodes (0.04-8.31 and 0.12-2.58 mg kg(-1)). However, As in A. bisporus was mostly organic including nontoxic arsenobetaine, while P. ostreatus and L. edodes contained mainly inorganic As (iAs). On the basis of in situ imaging using LA-ICP-MS, As in L. edodes was localized to the surface coat of the cap, while As in P. ostreatus was localized to the junction of the pileus and stipe. When As speciation and daily mushroom consumption (1.37 g d(-1) dw) are considered, daily mushroom consumption may result in elevated iAs exposure, with increased bladder and lung cancer rates up to 387 cases per 100000. Our study showed that market mushrooms could be a health risk to the general public so its production should be monitored.
机译：蘑菇中会积累砷（As），但是在整个地理分布范围内的耕种蘑菇中，As的浓度，形态和位置尚不清楚。我们对来自中国9个省会城市市场的9种141种样品进行了特征分析，并对香菇，平菇和双孢蘑菇进行了砷形态分析和定位分析。总砷浓度范围为0.01至8.31 mg kg（-1）dw，双孢曲霉（0.27-2.79 mg kg（-1））含有最多的As，其次是P. ostreatus和ed.edodes（0.04-8.31和0.12） -2.58 mg kg（-1））。但是，双孢曲霉中的As主要是有机物，包括无毒的砷甜菜碱，而P. ostreatus和L.edodes主要包含无机As（iAs）。在使用LA-ICP-MS进行原位成像的基础上，香菇中的As定位在帽的表层，而平菇中的As定位在桩和柄的交界处。如果考虑砷的种类和每日食用蘑菇量（1.37 gd（-1）dw），则每日食用蘑菇量可能会导致iAs暴露增加，膀胱癌和肺癌的发病率最高可达每100000例387例。对公众健康构成威胁，因此应对其生产进行监控。

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  • 来源
    《Environmental Science & Technology》 |2019年第1期|503-511|共9页
  • 作者

    Li Meng-Ya; Wang Ping; Wang Jue-Yang; Chen Xiao-Qiang; Zhao Di; Jin Dai-Xia; Luo Jun; Juhasz Albert L.; Li Hong-Bo; Ma Lena Q.;

  • 作者单位

    Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Jiangsu, Peoples R China;

    Nanjing Normal Univ, Sch Geog Sci, Nanjing 210023, Jiangsu, Peoples R China;

    Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Jiangsu, Peoples R China;

    Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Jiangsu, Peoples R China;

    Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Jiangsu, Peoples R China;

    Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Jiangsu, Peoples R China;

    Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Jiangsu, Peoples R China;

    Univ South Australia, Future Ind Inst, Mawson Lakes, SA 5095, Australia;

    Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Jiangsu, Peoples R China;

    Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Jiangsu, Peoples R China|Univ Florida, Soil & Water Sci Dept, Gainesville, FL 32611 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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