CAJ | 학술논문

以广东省主要种植的27个水稻品种为研究对象,通过对243份稻米样品中Cd、 Pb、 Cr、 As、 Hg等5种重金属含量的测定,分析不同品种和类型的水稻对5种重金属吸收能力的差异。研究结果表明,对广东省稻米影响最大的重金属是Cd,超标率为11.11%, Pb超标率是7.41%, Cr超标率是3.70%, As和Hg的检出量都低于国家标准。重金属对广东省稻米质量安全的影响严重程度依次为院 Cd＞Pb＞Cr＞Hg＞As,3种类型品种重金属综合污染严重程度顺序是籼型常规稻＞两系杂交稻＞三系杂交稻。
이광동성주요충식적27개수도품충위연구대상,통과대243빈도미양품중Cd、 Pb、 Cr、 As、 Hg등5충중금속함량적측정,분석불동품충화류형적수도대5충중금속흡수능력적차이。연구결과표명,대광동성도미영향최대적중금속시Cd,초표솔위11.11%, Pb초표솔시7.41%, Cr초표솔시3.70%, As화Hg적검출량도저우국가표준。중금속대광동성도미질량안전적영향엄중정도의차위원 Cd＞Pb＞Cr＞Hg＞As,3충류형품충중금속종합오염엄중정도순서시선형상규도＞량계잡교도＞삼계잡교도。
Through determination on 5 kinds of heavy metal (Cd, Pb, Cr, As, Hg) of 243 rice samples of 27 Main Cultivated Rice Varieties in Guangdong Province, we analyzed the difference in content of five kinds of heavy metal of rice varieties of different varieties and different types. The research result shows that the heavy metal which has greatest influence on rice of Guangdong Province is Cd, with an over-standard rate of 11.11%; Pb has an over-standard rate of 7.41%, Cr has an over-standard rate of 3.70%, while, the detectable amount of As and Hg is lower than the national standard. Therefore, the sequence of serious degree to which the pollution of heavy metal causes the influence on Guangdong rice is shown as follows: Cd > Pb > Cr > Hg > As; the sequence of serious degree to which the comprehensive pollution of heavy metal causes the influence on 3 rice variety types is shown as follows:indica rice conventional variety>two-line hybrid rice variety>three-line hybrid rice variety.