All India Institute of Hygiene & Public Health, Kolkata, West Bengal, India
*Corressponding Author: swati_bio06@rediffmail.com
Online published on 4 September, 2013.
East Kolkata wetland is a perfectly bridges the mankind with the natures. The wastewater enters the wetlands through a network of drainage channels which flow into the canals, the Dry Weather Flow canal was laid to parallel to the Sewage Weather Flow. The entire domestic sewage of the city of Kolkata (estimated 1394.42 million litres/day i.e. 283.2 mgd) runs through a system of principal and ancillary channels passing through East Kolkata Wetlands and feed the fish pond. Different species of fish are raised which occupy different ecological niches of the pond ecosystem, including Indian major, minor and exotic carp, varieties of non-native tilapia, mourala, and the freshwater giant prawn. These flows are utilized in the sewage treated fisheries for pisciculture as nutrients and the wetlands purify the sewage water through a natural process of oxidation, radiation and biological process which breaks down of the organic waste. The agricultural activity commonly seen among the localieds of area which is also one of the major occupation among the people of East Kolkata wetland. The study has done by Pilot studies of 40 households. Which conducted by developed the questionnaires on different health aspect of livelihood. Among the various activity 53.6% population are involved in fishery. There are three major routes of entry heavy metal in the body are contact, inhalation and ingestion. This ecosystem is stressed by poor land use planning; uncontrolled and unauthorized discharge of wastewater containing variety of chemicals and poor enforcement of existing environmental laws. This has caused a widespread threat and difficulties in marketing fish, vegetables and health hazard. Though here paddy productivity much more high. Rapid urbanization, leads to minimizing the scope of fish culture and other agricultural activity. The development of these areas ultimately position as a threat to the economy of Kolkata.
Sustainable management, East Kolkata Wetland, Health hazard, Econmic productivity, Polution