Trace Metal Studies on the Level of Zinc Content from Limboti Reservoir with Reference to Agriculture Context
Abstract
Limboti reservoir is situated near Limboti village of Loha Tehsil, Dist. Nanded of Maharashtra state. It is an Earth fill dam on the river Manar, engulfed with the different culture of agricultural land with soil pattern like little red soil, black cotton, sediments, fertilizers, bacteria from the livestock, food processing and various soil salts from irrigation drainage system. The metal pollutants are generally common in environment. There are different pollutants we always observe in agricultural soils and its occurrence, passing ways through the water defines the presence of natural as well as anthropogenic sources. However, these metals are in small quantities hence its referred as trace metals. The trace metals can occur naturally in the water but hardly ever at toxic level. The advanced culture of agriculture practices meanwhile contribute to containing waste, zinc covering material cause pollution in water body. Our emphasis is to identify quantitatively the concentration of zinc which is one of widespread essential micronutrient.
Source of zinc as trace element is observed in an aquatic system by galvanized steel material, zinc coated pipes used for irrigation, agricultural fertilizers, and other sources. Zinc is essential as a nutritional element for humans, plants, and animals, it is biologically significant. Present investigations, the Limboti reservoir near to Nanded city, also its wide applicability, hence we have selected this site for work on zinc and agriculture. Water samples were collected from the different three locations (Site-1, Site-2 and Site-3). The analysis carried out during period of February 2018 to January 2019 continuously. Zinc is studied by UV Spectrophotometer of Shimadzu UV1800, at wavelength of 535nm. Dithizone is widely useful and popular method applied for the systematic estimation of zinc. Maximum value of zinc was observed as 1.66mg/L and the minimum noted as 0.7mg/L.
