Heavy Metal Analysis in Soil: A Case Study through the Noyyal River, Tirupur

Aswathy V Gopal; Arun O S; R. Gobinath; D. Saranydevi

doi:10.3759/joise.v1i1.3486

Abstract

Noyyal River is a tributary of Cauvery River which rises from Vellingiri hills in Western Ghats, Tamilnadu South eastern India and drains in to Cauvery River. The river flows through four states, Coimbatore, Tirupur, Karur and Erode in western Tamilnadu. Till the river reaches Tirupur, the pollution concentration is considerably low. But in the Tirupur area the rate becomes substantially high due to the textile effluent discharge and sustains downstream up to Orathupalayam dam. High chloride, BOD, conductivity, iron, and chromium is present in the river water. The high conductivity of Noyyal river water indicates the main parameter which makes the water unfit for irrigation. Due to the self curing of the river, the heavy metals will get accumulated in the surface of the soil under the river water. And it becomes immobile. The soil contains very high amount of iron and chromium, which clearly indicates the presence of dye waste water pollution.