Ground water quality assessment: AAS

Abstract

One of the most important, abundantly available, precious, an essential basic compound to sustain life
on this earth is water. Water comes in various sources like water from ground level, sea source, ponds,
rivers, aquifers and so on. Out of all these sources, ground water suits to be one of the purest forms of
water that can be used for drinking around the world. But, at the same time it is very important to
assess the ground water quality before using it for several purposes, using various resources. This
work gives a brief analytical analysis about of ground water quality in terms of metallic ions, other
water born impurities and heavy metals. Water samples from four different zones of underground
water bodies of Janjgir-Champa Chhattisgarh were collected and analyzed. Atomic absorption
spectrophotometer (AAS) was used for testing the concentration of various metallic ions, heavy ions
like Cu, Fe, Ni, Cr, Zn, Cd, Ca, Pb, As etc. The statistical parameter like mean, standard deviation
(SD), correlation coefficient (r) and coefficient of variation (CV %) were calculated using statistical
tool. The result obtained was compared with Water Quality Index (WQI). The analysed data and their
elevated values are of great concern to public health when water from the underground sources is
directly consumed by people without any further treatment to meet their day to day requirements.