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INTERNAL DOSE DETERMINATION ON HUMAN AS RESULT OF PROCESSED KANGKUNG (IPOMOEA REPTANS) CONSUMPTION CONTAMINATED BY RADIONUCLIDE CESIUM-134 AND STRONTIUM-85 Putra, Didi Prabowo; S. Salami, Indah Rachmatiah; Tjahaja, Poppy Intan
Jurnal Teknik Lingkungan Vol 15, No 2 (2009)
Publisher : ITB Journal Publisher, LPPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (321.643 KB) | DOI: 10.5614/jtl.2009.15.2.1

Abstract

Abstract: Research has been done to find out internaL dose that can be received by human as result of consumption kangkung that growth in contaminated soil by caesium-134 and strotium-85. Kangkung was planted in soil contaminated with caesium-134 and strontium-85 for 70 days. After harvesting, a part of the plant separated and the other part being washed and boiled and then the radionuclide content for all of the plant were measured using spectrometer gamma. From the measurement and calculation, washing, boiling and sauteing process gives quite significant impact in reducing activity percentage of radionuclide which were about 23,5, 14,4 and 9,8 for strontium- 85 and 28,2, 58,5 and 47,4 for caesium-134. The result of equivalent dose calculation showed that each internal dosesis still bellow the limit of 5 mSv/year, and the dose was 0,053 mSv/year until 0,137 mSv/year.  Key words: kangkung, contamination, cesium-134, strontium-85, activity, internal dose Abstrak: Penelitian dilakukan untuk mengetahui dosis interna yang dapat diterima oleh manusia akibat mengkonsumsi kangkung yang tumbuh pada tanah terkontaminasi oleh radionuklida cesium-134 dan stronsium-85.Penelitian dilakukan dengan cara menanam tanaman kangkung pada media tanah terkontaminasi Cs-134 dan Sr-85selama 70 hari. Setelah panen, sampel tanaman diproses dengan pencucian, perebusan dan penumisan kemudiadiukur kandungan radionuklidanya dengan menggunakan spektrometer gamma. Dari hasil pengukuran diperolehbahwa ketiga proses memberikan pengaruh yang cukup besar terhadap penyisihan radioaktivitas dari sampeltanaman, yaitu sebesar 23,5, 14,4 dan 9,8 untuk stronsium-85 dan 28,2, 58,5 dan 47,4 untuk cesium-134. Hasilperhitungan dosis ekivalen menunjukkan nilai dosis interna dari masing-masing radionuklida berada dibawahambang batas sebesar 5 mSv/tahun, yaitu bernilai antara 0,053 mSv/tahun sampai 0,137 mSv/tahun.
Analysis of Public Environmental Expenditure : The Case Study of Jakarta Province Putra, Didi Prabowo; Edward, James Thomas
Jurnal Kebijakan Ekonomi Vol. 15, No. 1
Publisher : UI Scholars Hub

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Abstract

The national struggle for sustainable development influenced the sub-national governments level in composing their policy directions especially public budget policy. Nonetheless, although the environmental protection function is important, it tends to be marginalized in the national budgetary debates. This study, therefore, attempts to analyse the ‘green budget’ allocation and utilization within the Regional Medium-term Development Plan 2013 – 2017 of Jakarta Province. The methodology draws on descriptive analysis of derived data from annual provincial budget documents, and in-depth interview analysis explored potential barriers and drivers give rise to gaps in budget between the allocation and realization stage. Results show that the allocated ‘green budget’ posture of Jakarta Province was 6.1% in the five years average, significantly higher when compared to the national level at 0.8 – 1 percent. However, the realization was low with average actual spending at 47.1% of the total allocated budget. The interviews point to the collaboration aspect among the profound drivers to support environmental affairs policy. Meanwhile, the aspects of staff capacity, public awareness, and policy alignment are believed to be significant barriers that the government is recommended to take into consideration.