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Journal : TRI DASA MEGA - Jurnal Teknologi Reaktor Nuklir

QUANTIFICATION OF ALUMINUM CONTENTS IN COOKED FOODSTUFFS FROM THREE REGIONS IN JAVA USING NEUTRON ACTIVATION ANALYSIS As'ari, Ahmad Hasan; Yusuf, Saeful; Alfian, Alfian
JURNAL TEKNOLOGI REAKTOR NUKLIR TRI DASA MEGA Vol 22, No 1 (2020): February 2020
Publisher : Pusat Teknologi Dan Keselamatan Reaktor Nuklir (PTKRN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2278.928 KB) | DOI: 10.17146/tdm.2020.22.1.5817

Abstract

Aluminum is widely available in nature and the third most abundant element on earth. Improper intake of aluminum can increase toxicity and correlate with Alzheimer's disease. One source of aluminum comes from food. In this study, aluminum content in foodstuffs was analyzed using neutron activation analysis. Various foodstuffs were purchased from markets in three regions in Java, namely Bangkalan (East Java), Magelang (Central Java), and Cianjur (West Java) and cooked at a temperature above 80°C until the ready-to-eat condition. The cooked samples were freeze-dried and irradiated in the G.A. Siwabessy research reactor with neutron flux of 5x1013 neutrons.m2.s-1. Post-irradiation samples were analyzed using gamma spectrometry. The results show that the aluminum contents in each foodstuff from one region have a strong correlation with other regions (Pearson correlation coefficient r>0.9, P<0.001), indicating that the distribution of aluminum content does not differ from one region to another. The staple food category has a relatively low aluminum content with an average value of 24 mg/kg and a maximum value of 35 mg/kg. The dish category has higher aluminum content with an average value of 51 mg/kg and a maximum value of 77 mg/kg. The vegetable category has the highest content with an average value of 156 mg/kg and a maximum value of 710 mg/kg owned by caisim. Caisim is interesting for further research because of its ability to store large amounts of several elements. In general, the intake of aluminum sourced from these foods is still below the allowed value.Keywords: Neutron activation analysis, Food safety and security, Alzheimer, Aluminum distribution, Pearson correlation
DISTRIBUSI LOGAM BERAT DALAM SEDIMEN DAERAH ALIRAN SUNGAI CIUJUNG BANTEN Mulyaningsih, Theresia Rina; Alfian, Alfian; Sutisna, Sutisna
JURNAL TEKNOLOGI REAKTOR NUKLIR TRI DASA MEGA Vol 14, No 3 (2012): Oktober 2012
Publisher : Pusat Teknologi Dan Keselamatan Reaktor Nuklir (PTKRN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (857.377 KB)

Abstract

Peningkatan aktivitas masyarakat dan industri di sekitar Sungai Ciujung dapat berdampak terhadap penurunan kualitas Sungai Ciujung. Akibatnya peruntukan sungai untuk bahan baku air minum, irigasi dan perikanan sudah tidak sesuai lagi. Pemantauan kualitas sungai merupakan salah satu strategi proteksi lingkungan hidup, untuk itu diperlukan data yang memadai bagi Pemerintah guna melakukan perencanaan. Telah dilakukan penelitian distribusi logam berat di DAS Ciujung untuk mengetahui kualitasnya. Sejumlah cuplikan sedimen diambil dari beberapa titik sampling di DAS, berdasarkan identifikasi sumber pencemarnya. Sampling dibatasi pada batang tubuh Sungai Ciujung (tidak mencakup anak-anak sungai) dari Ciujung bagian hulu sampai dengan Ciujung bagian hilir ada 31 titik pengambilan. Analisis logam menggunakan teknik analisis aktivasi neutron dan AAS. Hasil penelitian menunjukkan bahwa distribusi logam Co, As, Sb, Cr, Fe, Mn, Zn, Pb, Cu, Ni dan Cd berfluktusi tergantung lokasi titik sampling. Konsentrasi tertinggi untuk logam tersebut ditemukan di daerah industri-1 dan hilir. Evaluasi berdasarkan faktor pengkayaan, faktor kontaminasi dan indeks geoakumulasi, disimpulkan bahwa pada daerah hulu kualitas masih bagus tidak terkontaminasi/tercemar. Daerah Industri-1, industri-2 dan Muara sudah terkontaminasi oleh logam Cd yang bersumber dari kegiatan manusia (antropogenik). Evaluasi berdasarkan indeks beban pencemaran menunjukkan bahwa perairan belum terkontaminasi, tetapi daerah muara, industri-1 dan industri-2 memiliki nilai indeks beban pencemaran yang hampir mendekati baseline level, sehingga monitoring kualitas perairan ke depan tetap perlu dilakukan.Kata kunci: Ciujung, AAN, unsur beracun, polutan, sedimen, DAS. Decrease of Ciujung river quality due to industry and community activities, leading to decreased quality of the river. As a result, river designation for raw drinking water, irrigation and fisheries are not suitable. Monitoring the quality of the river is one of the strategies for the environmental protection; therefore a suitable data should be required by government in a regional planning. A study of heavy metal distribution in the watershed Ciujung was carried out to determine its quality. Number of sediment samples was taken from several sampling points in the watershed, based on its pollutan sources identification. Sampling should be limited on main river (not including tributaries) from upstream to downstream river, there are 31 sampling points. Metal was analyzed using neutron activation analysis technique and AAS. The results showed that the distribution of metals Co, As, Sb, Cr, Fe, Mn, Zn, Pb, Cu, Ni and Cd fluctuate depending on the location. The highest concentrations of metals were found in downstream and industries-1 area. Evaluation based on the enrichment factor, contamination factor and index of geoaccumulation, ware concluded that the quality of upstream is still good has not contaminated / polluted. Industrial-1, industrial-2 area and the downstream ware contaminated by Cd metal source from human activity (anthropogenic). Evaluation based on pollution load index indicates that the river has not been contaminated, but the downstream, industry-1 and 2 areas has a value almost close IBT baseline level, therefore water quality monitoring in the future remains to be carried out. Key word: Ciujung, NAA, toxic elements, pollutan, sediment, watersheds.