Water pollution is a major problem worldwide, the management of which requires continuous monitoring and the effective implementation of water resource policy at all levels. The objective of the present study is to evaluate the water quality of three major sub-tributaries of Shendurney river viz. Kallar, Shendurney and Uruliyar which drains through the Shendurney wildlife sanctuary which also forms the catchment of the Kallada reservoir. The reservoir was also brought into the purview of the study and the results revealed a general trend of increasing pollution load from upstream to the downstream. Values of parameters such as pH and DO are higher in samples from the upstream whereas the BOD values which indicate the high concentration of organic matter is higher in the downstream portion of the three streams. The results of the study indicate the deterioration caused due to human interference in the outer and buffer zones of the protected area.

The coastal environment is a unique and dynamic system where elements from land, sea, air and people converge and they are unique in a very real economic sense as sites for port and harbour facilities that capture the large monetary benefits associated with waterborne commerce. The present study is carried out in Vizhinjam Panchayath, a coastal area located in Thiruvananthapuram, Kerala and has a natural harbour surrounded on most sides by land which is going to develop into an International Seaport. In this study, an attempt has been made to analyze the changed land use pattern of the proposed harbour area during 2009-2014. The study uses IRS-LISS-IV, Cartosat data and Arc GIS software. The study has observed that the built up activities have been increased by 8.8% during 2009-2014 whereas agriculture in the area showed negative growth with a net decrease of 6.4%. The results of the study underscore the fact that the future harbour developmental activities and their operations need more land and it has chances of negatively affecting the land use pattern of the study area.