On the Heavy Metal Pollution of Vegetables in Changsha Region

A test of five kinds of harmful heavy metals such as lead,cadmium,chromium,arsenic and mercury in 88 samples of 13 kinds of vegetable species in Changsha region shows results showed that their contents don’t exceed the standards and are not polluted in samples.But the pollution caused by lead and cadmium is very serious and the rates of such pollution exceeds the hygienic standards by 60% and 51%.Different kinds of vegetables have different absorbability.The heavy metal pollution conditions are not same in different areas.