青岛市区槐花中砷铬铅含量与土壤的关系

Relationship Between the Contents of Arsenic, Chromium and Lead in the Flowers of Robinia pseudoacacia L and the Soil Sown to Them in Urban Area of Qingdao

目的研究槐花中砷、铬、铅的含量与土壤的关系。方法于2001年5月对青岛市区不同地点生长的槐花及其土壤进行采样分析。结果土壤质量均保持一级水平 ,无一超标。参照我国食品卫生限量标准来评价 ,槐花中砷的含量均没有超标 ;铬的含量只在工业区采样点超标 ;而铅的含量所有采样点均超标。

Objective To study the relationship between the contents of arsenic, chromium and lead in the flowers of Robinia pseudoacacia L and soil sown to them in urban area of Qingdao. Methods The flowers of Robinia pseudoacacia L and soil, where they grew, were sampled for analysis in different quarters in urban area of Qingdao in May,2001. Results The sanitary qualities of the soil samples all maintained Grade 1, no one of the samples exceeded the related national sanitary standards for the contents of arsenic, chromium and lead in soil. Based on the national standards for As, Cr and Pb in food, the As contents in the sampled flowers of Robinia pseudoacacia L were all below the related national standard. The Cr contents in the flower samples exceeding the standard were only found in industrial quarter. The Pb contents in all flower samples exceeded the standard. Conclusion The low contents of Cr and Pb in flower samples were associated with those in the soil sown to Robinia pseudoacacia L and other environmental factors in a certain degree.