Preliminary study on environmental quality for Kung Krabaen Bay
1998
Saksit Tridech(Office of Environmental Policy and Planing, Bangkok (Thailand))
Preliminary Study on Environmental Quality for Kung Krabaen Bay Project carried out by Office of Environmental Policy and Planning, Department of Pollution Control and Environmental Quality Promotion during 1991-1992 aimed at environmental management. Water, sediments and soils were analysed for coliform bacteria, heavy metals and nutrient elements. The results indicated that the water quality in the bay was, so far still good and did not show any adverse effect on environment. Nutrients, NH4-N, in particular found in the soil where was occupied by the paddy field showed that it was resulted from the fertilizer application. Considerable amount of nutrients which will be transported and deposited along the coastlines through the effluent can be decreased by preserving the buffer zone between coastal area and point sources including shrimp farms, paddy fields, urban and other sources. Long term management, however, depends upon the sound management plan emphasizing landuse, mangroves protection and soils and water conservation. The study recommended that the establishment of wastewater treatment system to protect against the untreated effluent discharged from shrimp farms and households onto the Kung Krabaen Bay, the semiclosed system, be prioritized in order that the eutrophication problem can be controlled. Guidelines for protecting the Kung Krabaen ecosystem are also recommended.
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