Chemical Forms and Distribution Characteristics of Phosphorus in the Sediments of the Anning Phosphate Mining Area, Yunan Province

The chemical forms and content of phosphorus in sediments are the important basis for exploring bioavailability, migration, and transformation of phosphorus in sediments accurately. To assess and evaluate phosphorous pollution from a phosphate mine, the phosphorus chemical forms in the sediment were determined by a suggested combined method and studied by the phosphorus classification method. The results show that the total phosphorus content all reached the lowest level of ecotoxic effect, and 56.7% of samples reached the serious level of ecotoxic effect. Therefore, it is suggested to strengthen the monitoring and assessment of river pollutants in phosphate mining areas. The BRIEF REPORT is available for this paper at http://www.ykcs.ac.cn/en/article/doi/10.15898/j.ykcs.202209050164.