Coastal zone is very dynamic, being the meeting place of land and sea water. The development in coastal area and subsequent population growth have given rise to problems such as erosion, sedimentation, saltwater intrusion, degradation of natural resources etc. Satellite data has proved to be more appropriate for change detections quantifying and monitoring coastal zones compared to conventional sources. An attempt is being made to elucidate the effect of shoreline changes with reference to the spatial and field data observed along the Tharangampadi area.

Sister chromatid exchange (SCE) frequencies were deter mined in peripheral lymphocytes from traffic policemen drawn from various busy traffic points of Madras metro in India. These policemen were under constant exposure to automobile exhaust pollution during their 8 h work schedule.