Hauv kev lag luam kev kho dej, cov khoom siv lim tau dav siv los tshem tawm cov khoom tshem tawm, cov khib nyiab, cov organic, tshuaj, thiab cov kab mob hauv dej, txhim kho pob tshab, turbidity, tsw, thiab saj.
Peb tuaj yeem muab cov khoom siv lim dej hauv qab no hauv kev lag luam kho dej.
