Studi Radioekologi Kelautan di Pesisir Pantai Selatan YOGYAKARTA: Monitoring 137cs untuk Keperluan Baseline Data dan untuk Mengantisipasi Kemungkinan Dampak Kecelakaan Nuklir di Fukushima

Abstract

MARINE RADIOECOLOGICAL STUDY IN COASTAL BEACH OF SOUTH YOGYAKARTA : 137Cs MONITORING FOR BASELINE DATA TO ANTICIPATE AND POSSIBLE IMPACT OF FUKUSHIMA NUCLEAR ACCIDENT. Planing for NPP contraction and operation in Bangka Island need a baseline data for comparison both in normal operation and in emergency condition. South coast of Yogyakarta can be used for UPZ station of environmental monitoring for NPP both normal operation or emergency condition. The marine monitoring have been conducted at 4 station around south coast of Yogyakarta. The result of marine monitoring have found the baseline data of 137Cs concentration in seawater and sediments in the south coast of Yogyakarta were below the detection limit to 0.062 mBq.l -1 and 0.63 to 0.84 Bq.kg-1 respectively. The baseline data is quite comparable with the 137Cs concentration data well in the other region Indonesian marine waters and data from ASPAMARD. The comparison with the ASPAMARD data was shown that south coast of Yogyakarta which represent Indonesian marine waters not affected by the nuclear accident in Fukushima. On the other hand, concentration profiles of 137Cs in the marine sediment column indicate no precipitation 137Cs originating from the accident in Fukushim