Investigation of Physico-Chemical and Biological Characteristics of Various Lake Water in Coimbatore District,Tamilnadu,India

Abstract

Lake water quality degradation has been apparent for decades, especially in those lakes situated in the vicinity of cities which have anthropogenic activities. The present investigation was carried out for determining the various physico-chemical and biological characteristics of surface water quality of various lakes at Coimbatore, India. The sampling points were selected on the basis of their importance. Six sampling locations namely at Perur Lake (L 1 ), Selvachinthamani Lake (L 2 ), Ukkadam Lake (L 3 ), Kurichi Lake (L 4 ), Valankulam Lake (L 5 ), and Singanallur Lake (L 6 ) were selected and water samples were collected mostly from open wells in and around Coimbatore district. The physico-chemical parameters like Dissolved oxygen, Faecal coliforms, pH, Electrical conductivity, Biochemical oxygen demand, Chemical oxygen demand, Turbidity, Total dissolved solids, Sulphate, Nitrate, Phosphate, Chlorides and Alkalinity were analyzed. The results suggested that, the lake water samples collected from various sites in and around Coimbatore citywere above the limits of WHO standards.

Physical and Chemical Characteristics of Drinking Water in Coastal Area of Taluka Keti Bandar, Sindh, Pakistan: A Case Study

“…The major sources of alkalinity of water are weathering of rocks as well as sediments. Crop production may be reduced by damaging soil, since its higher concentration in water may produce bitter taste [38] (Table 2, , since its high concentration may cause gastrointestinal pain. The diseases known as cathartic may be caused by SO 4 2when its concentration is greater than 600 mg/L [39].…”

Experimental Investigation of Water Quality and Inorganic Solids in Malaysian Urban Lake, Taman Tasik Medan Idaman

“…In sources such as lakes, rivers and ponds, photosynthesis and re‐aeration are the two primary DO sources. DO values fluctuate seasonally and daily with variations in temperature, respiration by aquatic animals, decomposition by organic matter and various other chemical reactions (Jeyaraj et al., ). The relationship of DO is inversely proportional with temperature and salinity, while it is proportional with pressure and movement (Vesilind et al, ).…”

“…The measured COD value was 82 mg/L, comparable to the 98 mg/L reported for the campus lakes in Selangor and 78 mg/L in the Skudai River (Daud et al., ; Naubi et al., ). This value places the lake in class IV of water quality in the INWQS and can be associated with inorganic wastes being discharged into the lake (Jeyaraj et al., ). This means the water can only be used for irrigation without further treatment and is not suitable for human consumption.…”

“…As a result of its highly solvent nature, however, water is prone to pollution. Surface water sources such as lakes and rivers provide water for drinking water, irrigation, fishery, energy production and recreational activities (Jeyaraj, Ramakrishan, Anandhi, Arunachalam, & Magudeswaran, ). In Malaysia, almost 90% of the nation's water source can be attributed to lakes and water reservoirs.…”

“…On the other hand, external inputs can include organic and inorganic pollutants, as well as nutrients, which cause deterioration of water quality from point and non‐point sources. Many studies have been performed to illustrate the direct relation of anthropogenic activities on the degradation of water quality in lakes and rivers, particularly those near cities (Jeyaraj et al., ; Rajendran et al., ; Umerfaruq & Solanki, ). It has been reported that the main pollution contributors to Malaysian water bodies are municipal and industrial wastes, as well as livestock wastes and other agricultural activities, which result in high biochemical oxygen demand (BOD) and high nitrate and suspended solids concentrations (Daud, Abdulrahman, & Idrus, ).…”