Chemical Analysis of Surface Water Quality of River Noyyal Connected Tank in Tirupur District, Tamil Nadu, India

In the developing countries, the most prevalent environmental issue is the adverse effect of fast industrialization on the quantity and quality of surface water bodies. Tirupur city, located on the bank of River Noyyal is recognised all over the world for its textile processing business. The river acts as a sink for varied pollutants like industrial effluents, dyeing waste and sewage. Thus, in order to study the surface water quality of Noyyal River, the present investigation has been designed systematically choosing three sampling stations namely source (S1), Mangalam (S2) (before Tirupur) and Kasipalayam (S3) (after Tirupur). The samples required for various analyses were collected from open wells at Noyyal River basin. After employing suitable methodologies to measure various parameters such as dissolved oxygen (DO), biological oxygen demand (BOD), pH, faecal coliforms, nitrates, phosphate, turbidity and total dissolved solids (TDS), the samples were given National Sanitation Foundation-Water Quality Index (NSF-WQI). A detailed statistical analysis among the water quality parameters has been carried out. A strong correlation was found among the parameters for both the monsoon and summer seasons. Linear regression analysis is adopted to establish an interrelationship between the parameters.