Abstract:

In order to obtain the fact of heavy metal pollution of soil and herb form the main producing area of Salvia miltiorrhiza in China, a wide investigation was carried in 13 samples from four provinces. In this study, the heavy metal contents of soil and herb were conducted by ICP-MS, and then evaluation was established by the pollution index. The results showed that soil from the main producing area of S. miltiorrhiza were up to scratch of national standard Ⅱon the whole. As and Hg content of herb were under national standard from all sample, and Cd and Pd content exceeded standard slight in several sample, while Cu content in herb exceeded standard in general from the main producing area. Integrated evaluation showed that herb from Gaoba Town of Shanxi Provinces and Zhuge Town of Shandong Provinces polluted by heavy metal slightly, while herbs from other district were safety in heavy metal pollution. Cu accumulation in herb correlated positively with Cu content in soil, and heavy metal accumulation in herb cooperated with each. In conclusions, national standard standard Ⅱof soil environment must be carried out severely in S. miltiorrhiza resources production.