Evaluation of soil environmental quality of the planting bases of har mless Chinese medical materials in Jilin Province

The present situations of soil environmental quality of seven standardized planting and demonstration bases of harmless Chinese med ical materials in Jilin Province were evaluated. The results show that all pollution indexes in the seven bases accord with the national standard. The single and comprehensive pollution indexes are all less than 1.0. The environmental quality grade of soil is 2. It is suitable for the establishment of the base producing Chinese medical materials.