Turbidity measurements at coastal and inland sites in India

Analysis of turbidity measurements using a Volz sunphotometer, at three sites in India, two of them coastal and one inland, is reported. The sites are rural, far from industrial activity. After making an error analysis of the measurement technique the seasonal variations in turbidity parameters are interpreted in relation to the concurrent changes in relevant meteorological parameters like wind speed, wind direction, temperature and humidity. At coastal sites, the turbidity and the atmospheric salt concentration are found to be well correlated though the correlation coefficient varies between sites.