In view of the nitrogen and phosphorus non-point source pollution caused by paddy field drainage in southern China, two fields Nanjing Yuyao cities were selected to study effect plant buffer zone–antifouling curtain walls on reducing pollution. The results showed that designed wall systems could significantly reduce concentration total (TN) (TP) fields. Compared with Nanjing, interception rate ...

the objective of the study was to investigate pollution sources in the Vilnia river and evaluate the toxicity of sewage, contamination of the Vilnia river water and bottom sediments, using a complex of biological methods. toxicity was assessed by use of various indices of test-organisms: seed germination and root growth in Lepidium sativum l., and mortality and physiological indices in early on...