摘要：Seer is the stream in outer Himalayas, which is a sub-tributary of River Satluj. It is getting polluted due towastewater of Ghumarwin town in District Bilaspur in Himachal Pradesh. The pollution impact is severest inthe low flow months of summer. Steep slopes, pools, riffles, shallow depth and small waterfalls are the maincharacteristics of the stream. The stream bed consists of stones and cobbles. All the stones in the streambed are heavily coated with a greenish layer of algae. Greenish filamentous attached algae also grow inabundance in the stream. Some aquatic plants have also been observed in the stream. The paper describesthe quantification of oxygen production due to the presence of attached algae in the stream.
