Research Article

Assessment of Groundwater Quality along the Cooum River, Chennai, Tamil Nadu, India

Table 3

Methods used for analysis of quality parameters for the water samples.

Quality parameters studiedMethods used

pHpH meter
Electrical conductivityConductivity meter
Total dissolved solidsEvaporation method
Biochemical oxygen demandModified Winkler’s method
Chemical oxygen demandTitrated with an excess of K2Cr2O7
SodiumFlame photometry
LeadAtomic absorption spectrometry