摘要：In present study, the physico-chemical characteristics of the Khan river at four selected polluted stationswere measured. Two plant species, Ipomoea fistulosa and Polygonum barbatum, which grow abundantly atall sampling stations of the Khan river bank, were selected to determine the effect of pollutants on chlorophyllcontents (chl-a, chl-b, total chlorophyll), carotenoids, nitrate reductase and peroxidase activity. The studyrevealed that all the selected physico-chemical parameters were higher at Kabirkheri (Station 4) which indicatedthat pollution load was much higher at this station as compared to the other three stations. Chl-a, chl-b,carotenoids, total chlorophyll, nitrate reductase and peroxidase activity all parameters were higher at Station4. Among both the selected plant species Polygonum barbatum showed good correlation with pollutants forall parameters studied.
