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All Journal HAYATI Journal of Biosciences ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA Atom Indonesia Journal Jurnal Kesehatan Masyarakat Journal of Marine Research International Journal of Marine and Aquatic Resource Conservation and Co-existence Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir Jurnal Kelautan Tropis Jurnal Keselamatan Radiasi dan Lingkungan Jurnal Segara Jurnal Riset dan Rekayasa Kelautan Indonesian Journal of Oceanography Journal of Marine Research

Muslim Muslim

Departemen Oseanografi , Fakultas Perikanan Dan Ilmu Kelautan, Universitas Diponegoro

Author-ID : 2617947

Agriculture, Biological Sciences & Forestry Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Energy Environmental Science Materials Science & Nanotechnology Physics Public Health Social Sciences Other

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Elimination of Chloramphenicol by Tiger Shrimp (Penaeus monodon) and White Shrimp (Litopenaeus vannamei) Heny Suseno; Sumi Hudiyono; Muslim Muslim
HAYATI Journal of Biosciences Vol. 23 No. 3 (2016): July 2016
Publisher : Bogor Agricultural University, Indonesia

Chloramphenicol (CAP) has been illegally used in many shrimp farms in South East Asia, including Indonesia. We performed an experiment of elimination simulation of CAP in tiger shrimp (Penaeus monodon) and white shrimp (Litopenaeus vannamei). After 5 days of depuration process, the concentration of CAP in P. monodon decreased to 94.85% (muscle), 97.98% (cephalothoraxes), and 90.30% (exoskeleton). The elimination half-life of CAP in P monodon was 0.596 day in the muscle, 0.716 day in cephalothorax, and 0.437 day in exoskeleton. On the other hand, concentrations of CAP in L. vannameidecreased to 97.74% (muscle), 90.30% (cephalothoraxes), and 97.63% (exoskeleton). The elimination half-life of CAP in L. vannamei was 0.6624 day (muscle), 0.859 day (cephalothorax), and 0.796 day (exoskeleton). CAP was retained better by P. monodoncompared to L. vannamei.

ANALISIS LAJU DOSIS SERAP MATERIAL NORM DI SEDIMEN DASAR LAUT BANDA, SULAWESI TENGAH Ghifari Raihan Silam Siregar; Muslim Muslim; Ali Ali; Baskoro Rochaddi; Sugeng Widada; Djunaedi Muljawan; Azhar Afi
Oseanika Vol. 2 No. 1 (2021): Oseanika: Jurnal Riset dan Rekayasa Kelautan - Juni 2021
Publisher : Laboratory for Marine Survey Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/oseanika.v2i1.4936

[Analysis of Absorbed Dose Rate for NORM Material in Sediment of Banda Waters, Central Sulawesi] Naturally occurring radioactive materials (NORM) are materials contained in the earth and generally come from several sources such as coal burning, oil and gas production, and mining. The coastal areas of the Banda water, especially along Luwuk, Morowali, and Kendari, Central Sulawesi, are areas that become locations for several activities, such as mining, oil and gas industry, and power plants. The purpose of this study is to assess the distribution of the absorbed dose rate of NORM material in the sediment of Banda water, especially along Luwuk, Morowali, and Kendari, Central Sulawesi, and to analyze its value against existing quality standards. The absorbed dose rate of 226Ra, 232Th, dan 40K were measured at 5 stations and the results are 52.53 nGy/h; 355.75 nGy/h; 45.88 nGy/h; 131.86 nGy/h; and 35.38 nGy/h. The study shows that the distribution of the absorbed dose rate was influenced by the activities of the NORM-producing industry close to the location of the measured station. Marine current patterns and bathymetry have slight effect in this study area. The risk quotient of the absorbed dose rate is still <1 so that it indicates that the risk to organisms around the waters is still low. Keywords: NORM, Absorbed Dose Rate, Radium, Thorium, Potassium, Banda Sea

90Sr Activity in the High Seas and Coastal Regionsof Korea-Japan-Russia-China Compared with Exponential Decay of 90Sr Global Fallout Muslim Muslim
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 12, No 1 (2007): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Konsentrasi dan aktivitas 90Sr saat radioaktif buatan jatuh secara global di bumi pada tahun 1964 dibandingkan dengan konsentrasi dan aktivitas 90Sr di lepas pantai dan daerah pantai Korea-Japan-Russia-China secara tahunan dari tahun 1964 sampai tahun 2000. Konsentrasi 90Sr menunjukkan penurunan secara terus menurus bahkan jauh di bawah exponential decay, hal ini dikarenakan oleh effektifnya lingkungan terhadap waktu paruh. Dari analisa tersebut disimpulkan bahwa konsentrasi dan aktivitas 90Sr di lepas pantai dan daerah pantai Korea-Japan-Russia-China secara original lebih banyak berasal dari radioaktif buatan yang jatuh secara global dari pada dari sumber hasil buangan lokal.Kata kunci: 90Sr, perairan lepas pantai, daerah pantai, exponential decay, globalConcentration and activity of 90Sr in the high seas and coastal regions of Korea-Japan-Russia-China from theglobal fallout to 2000 were studied. The variation of 90Sr in these study areas decreased continuously from1964 when global fallout radioactive was started to 2000. Suggesting that from 1964 to present the 90Sractivity from any local resources at Korea-Japan-Russia-China doesn’t significant, because the 90Sr activitiesmuch lower compared with the exponential decay, it caused by effective environmental half-lives. In conclusion,the activity of 90Sr in the high seas and coastal regions of Korea-Japan-Russia-China originated entirely fromthe global fallout rather than from any local point sources.Key words: 90Sr, high seas, coastal regions, exponential decay, global fallout

Potential Radiological Dose of 210Po to Several Marine Organisms in Coastal Area of Coal-Fired Power Plant Tanjung Awar – Awar, Tuban Chairun Annisa Aryanti; Heny Suseno; Muslim Muslim; Wahyu Retno Prihatiningsih; Siti Nurul Aini
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 27, No 1 (2022): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.27.1.73-82

NORM (Naturally Occurring Radioactive Material) is a radionuclide element that naturally already exists in the earth. Its concentration can be increased by industrial activities, such as coal-fired power plant (CFPP). Coal-fired power plant activities produce fly ash and bottom ash which will be carried away by the wind and then can enter the CFPP environment, one of which is marine waters and can affect the existence of marine biota. The determination of the radiation dose rate is essential in assessing the risk of radionuclide exposure to the marine environment. This study aims to determine and evaluate the total dose rate of 210Po to marine biota taken from the Karangsari fish market with catchment areas around the waters of CFPP Tanjung Awar – Awar, Tuban, East Java. This research was conducted in April 2021 in the waters of CFPP Tanjung Awar – Awar. 210Po measurement activity was carried out using alpha ray spectrometry at the Marine Radioecology Laboratory of PTKMR-BATAN, then the radiation dose rate was calculated using the ERICA Tool software. The value of the total radiation dose of 210Po on marine biota ranges from 2.70E-1 µGy.hr-1 to 39.70E+0 µGy.hr-1. The radiation dose of 210Po on marine biota measured in the waters of CFPP, has a lower value range than the research result carried out in other countries. Based on the Erica Tools software analysis, the total radiation dose measured on marine organisms in the waters of CFPP Tanjung Awar – Awar, does not give a negatively impact to the marine ecosystems and the sustainability of marine organisms in the study area.

Condition of 137Cs Activity in Karimunjawa Waters and its Distribution When an NPP Jepara is Operated Muslim Muslim; Heny Suseno; Siti Saodah
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 21, No 3 (2016): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Karimunjawa islands are located in the middle of the Java Sea, approximately 83 km northwest of Jepara city. These islands have become an Indonesian marine tourism destination and since 2001 had been designated as a national park. The Indonesian government has chosen Muria peninsula in the district of Jepara, Indonesia as a site for a potential nuclear power plant (NPP). The purpose of this study was to determine the current level of radiocesium (137Cs) activity and forecast its spread if an NPP is operated at Jepara. To determine the distribution of 137Cs in Karimunjawa waters, a sampling of water was done in six stations. Simulation modeling was used to map the distribution of 137Cs should an NPP be constructed in Jepara. The results showed that 137Cs activity in Karimunjawa waters ranges from 0.12 to 0.39 mBq.L-1 with an average of 0.24 mBq.L-1. This value is slightly higher than previous studies in the coastal waters of Gresik, which had an average activity of 0.200 mBq.L-1 because the waters around Karimunjawa have a lower dilution rate than the coastal waters of Gresik. However, these values were considerably lower than those in the waters of Northeast Japan before the Fukushima nuclear power plant accident which registered 137Cs activity at 2-3 mBq.L-1.This indicates that 137Cs in Karimunjawa is not entirely from Fukushima rather from the global fallout. The 137Cs distribution model suggests that after 15 days, a leakage in the Muria Peninsula nuclear plant will not contaminate Karimunjawa waters because the current in the Java Sea is relatively weak and dominant in the westward direction. Thus, when an NPP leak only runs for 15 days, Karimunjawa waters remain safe.Keyword: 137Cs, Karimunjawa, NPP, modeling, Muria Peninsula

Studi Persistensi Suhu Permukaan Laut Tinggi (>30°C) di Perairan Selat Malaka Metrio Swandiko; Anindya Wirasatriya; Jarot Marwoto; Muslim Muslim; Elis Indrayanti; Petrus Subardjo; Dwi Haryo Ismunarti
Buletin Oseanografi Marina Vol 10, No 2 (2021): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/buloma.v10i2.31554

Hot Event merupakan fenomena suhu permukaan laut (SPL) tinggi lebih dari 30°C dan memiliki mekanisme khusus dalam pembentukannya, yaitu kecepatan angin lemah dan radiasi matahari tinggi. Hot Event memiliki peran penting dalam menyumbang bahang pada pacific warm pool di Samudra Pasifik bagian barat dan berperan mengatur variasi iklim global. Indonesia sebagai negara kepulauan memiliki potensi besar melemahkan sirkulasi angin dan potensi kejadian Hot Event. Selat Malaka merupakan selat terpanjang di Indonesia dan berpotensi untuk menjadi area kajian Hot Event. Fenomena SPLtinggi (>30°C) dan konstan selama 13 tahun (2003 – 2015) di Selat Malaka merupakan hal unik untuk dikaji. Penelitian ini bertujuan untuk mengidentifikasi dan mengetahui mekanisme terjadinya SPL tinggi (>30°C) dan konstan selama 13 tahun (2013 - 2015) di Selat Malaka. Metode yang digunakan adalah metode kuantitatif. Data yang digunakan adalah data harian SPL, angin, arus permukaan, radiasi matahari selama 13 tahun serta batimetri. Pengolahan data menggunakan bahasa pemograman untuk memvisualisasi SPL tinggi >30°C, angin lemah <2 m/det, arus, radiasi matahari tinggi 200 W/m² serta data batimetri. Variasi SPL paling tinggi dan konstan terjadi pada musim timur (Agustus) dan paling rendah pada musim barat (Februari). Fenomena SPL tinggi dan konstan di wilayah kajian B terhadap kajian A dan C disebabkan lemahnya kecepatan angin <2 m/det di wilayah B dibandingkan wilayah A dan C, serta didukung dengan tingginya radiasi matahari dan batimetri wilayah kajian B yang relatif dangkal, sehingga proses pemanasan massa air lebih cepat dibandingkan wilayah kajian lainnya. Hot Event is a phenomenon of high sea surface temperature (SST) over 30 °C and it has a unique mechanism in its formation by the lower wind speed and high solar radiation. Hot Event has an important role in contributing heat to the pacific warm pool in the western Pacific Ocean and play a role in regulating global climate variations. Indonesia as an archipelagic country has the potential to weaken wind circulation and potential Hot Event. The Malacca Strait is the longest strait in Indonesia and it is potential for Hot Events. The phenomenon of high SST (>30 °C) and constant for 13 years (2003 - 2015) in the Malacca Strait is unique to be studied. The present research aims to identify and determine the mechanism of the occurrence of high SST (>30 °C) and constant for 13 years (2013 - 2015). The method used in this study is quantitative method. The data used are daily data of SST, wind, surface currents, solar radiation for 13 years, and bathymetry. Programming was used to visualize high SST >30 °C, lower speed winds <2 m/s, currents, high solar radiation 200 W/m² also bathymetry data. The highest and constant variation of SST occurs in the east season (August) and the lowest in the west season (February). The phenomenon of high and stable SST in area B on A and C is due to the low wind speed <2 m/s in region B compared to A and C and it is supported by high solar radiation and shallow bathymetry in area B, so that the heating process of water mass is faster than other areas.

STUDY OF MIXED LAYER DEPTH VARIATION IN LIRAN ISLAND WATERS, SOUTHWEST MALUKU, APRIL 2016 Andriana Kartina Wingtyas; Agus Anugroho Dwi; Anindya Wirasatriya; Muslim Muslim; Teguh Agustiadi
International Journal of Marine and Aquatic Resource Conservation and Co-existence Vol 2, No 1 (2017): IJMARCC
Publisher : International Journal of Marine and Aquatic Resource Conservation and Co-existence

ABSTRACTLiran Island waters are located between two seas, the Banda Sea and the Timor Sea. These waters are also the border between Republic of Indonesia and the Democratic Republic of Timor Leste (RDTL). The thickness of mixed layer depth in Liran Island waters are vary. This is assumed as a result of the influence of transition season I wind that blew in the area in April 2016. This study aims to determine the variation of the thickness layer mixed layer Liran Island waters, Southwest Maluku District on April 2016 caused by the transition season I wind. The methodology that used in this research is descriptive method with quantitative approach. The main data that used in this study is in situ sea temperature data, while the supporting data that used in this study is wind data which measured directly in the field for 9 days. The result of this research is based on determination of layer mixed layer using criterion ΔT = 1.0 0C. The west part of Liran Island had thinnest layer mixed layer depth that is about 20 - 38 m. The east part of Liran Island waters had the thickest mixed layer depth which up to 55 m. Meanwhile, the north part of Liran Island waters had a thickness of mixed layer between the eastern and western waters of 40 m. This related to the wind that blowing from the southwest to the northeast and causing a downwelling phenomenon in the east part of Liran Island waters and upwelling phenomenon in the west part of Liran Island waters while the north part of Liran Island waters did not get a great influence from the movement of the wind because of its location which protected by Liran Island itself. Key words: mixed layer depth, the transitional monsoon I, Liran Island waters

Aktivitas NORM pada Sedimen Dasar di Perairan PLTU Tanjung Jati Jepara dan Kaitannya dengan Ukuran Butir Sedimen serta TOC Navila Bidasari Alviandini; Muslim Muslim; Wahyu Retno Prihatiningsih; Sri Yulina Wulandari
EKSPLORIUM Vol 40, No 2 (2019): November 2019
Publisher : Pusat Teknologi Bahan Galian Nuklir - BATAN

ABSTRAKNORM (Naturally Occuring Radioactive Material) merupakan unsur radionuklida yang secara alami sudah ada dalam bumi dan kandungannya dapat meningkat dengan adanya kegiatan industri, seperti PLTU. Kegiatan PLTU menghasilkan bottom ash dan fly ash yang akan terbawa oleh angin kemudian masuk ke perairan dan mengendap pada sedimen dasar perairan. Penelitian ini bertujuan untuk mengetahui aktivitas NORM pada sedimen dasar terkait kegiatan PLTU Tanjung Jati, Jepara dan hubungannya dengan ukuran butir serta TOC (Total Organic Carbon). Pengambilan sampel dilakukan dengan metode purposive sampling. Pengukuran konsentrasi aktivitas NORM dilakukan menggunakan spektrometri sinar gama detektor HPGe, di Laboratorium Radioekologi Kelautan PTKMR-BATAN. Konsentrasi aktivitas NORM yang terdeteksi yaitu 40K berkisar 442,75–818,40 Bq.Kg-1, 232Th berkisar 99,19–212,34 Bq.Kg-1 dan 226Ra berkisar 42,42–77,77 Bq.Kg-1. Aktivitas NORM menunjukkan adanya hubungan dengan tekstur sedimen, tetapi tidak menunjukkan hubungan dengan kandungan Total Organic Carbon (TOC).ABSTRACTNORM (Naturally Occurring Radioactive Material) is a radionuclide element which naturally exists in the earth and its content can increased with the presence of industrial activities, such as the PLTU. The PLTU activities produce fly ash and bottom ash which will be carried away by the wind and then fall in the waters and settle on the bottom sediments of the waters. This study was aimed to determine the activity of NORM in bottom sediments related activities PLTU Tanjung Jati Jepara and its relationship with grain size and TOC (Total Organic Carbon). Sampling was conducted by purposive sampling method. NORM activity concentration measurements performed using gamma ray spectrometry HPGe detector, in Marine Radioecology Laboratory PTKMR-BATAN. NORM activity concentration detected is 40K ranged 442.75 to 818.40 Bq.Kg-1, 232Th ranged 99.19 to 212.34 Bq.Kg-1 and 226Ra ranged 42.42 to 77.77 Bq.Kg-1. NORM activity shows the relationship with sediment texture, but does not show a relationship with the composition of Total Organic Carbon (TOC).

Distribution of 137Cs Radionuclide in Industrial Wastes Effluents of Gresik, East Java, Indonesia Muslim Muslim; H. Suseno; F. Rafsani
Atom Indonesia Vol 41, No 1 (2015): April 2015
Publisher : PPIKSN-BATAN

The distribution of anthropogenic radionuclides 137Cs was measured from industrial waste effluent of Gresik to Gresik Sea in east Java, Indonesia. The activity of 37Cs detected at all stations was much lower than in northeast Japan both before and after NPP Fukushima accident. This indicated that in Gresik industrials waste did not consist of 137Cs. The lowest activity 137Cs occurred at the station nearest to the industrial waste effluent that contained some particle ions that were able to scavenge 137Cs and then precipate this radionuclide. Furthermore, the greatest 137Cs occured at the station that has high current speeds that stirred up sediment to release 137Cs in seawater as a secondary source. The lowest salinity did not effect on the activity of 137Cs even though the lowest salinity and activity 137Cs occured at the same station.Received: 04 October 2014; Revised: 09 March 2015; Accepted 23 March 2015

Distribution of 226Ra Radionuclide in Upwelling Event Off Ulsan, Gampo and Pohang, Korea Muslim Muslim
Atom Indonesia Vol 35, No 2 (2009): July 2009
Publisher : PPIKSN-BATAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/aij.2009.52

Upwelling is an important event in the sea for it makes the area to become more productive. The objective of this study is to determine the distribution of radium-226 as radiotoxic in the upwelling area in the summer season. Measurements of the horizontal and vertical activities of 226Ra in the Ulsan, Gampo and Pohang waters were conducted in June, August 1999 and June 2000 when the upwelling event was expected to occur. Water temperature, salinity and dissolved oxygen (DO) were also measured concurrently. The thermocline layer or the layer where the temperature decreased drastically occurred at a depth between 30 m to 100 m for samples dated June 1999 and 30 m to more than 100 m for samples dated August 1999 and June 2000. The salinity decreased with depth but the DO concentration increased in this layer. The condition affected the vertical distribution of 226Ra in the study area, where the 226Ra activities showed to be relatively homogeneous vertically in each station. This indicates that the upwelling which occurred in the study area was capable to distribute the 226Ra activities from the bottom to the surface. Thus, the 226Ra distribution at that time did not increase with depth, opposite to what usually occurs in the ocean at normal condition. The 226Ra activities also did not decrease after elapsed time of one year, in fact, it increased. However, horizontally the 226Ra activities decreased with increasing distance from the coastal zone. Based on these results, it can be concluded that the upwelling event in the Ulsan, Gampo and Pohang was effective for increasing the 226Ra activities and was capable to create homogeneous 226Ra activities from the bottom to the surface in the water column, and the source of 226Ra was likely to originate from outside area (i.e. coastal zone) and bottom area.Received: 25 March 2009; Revised: 24 August 2009; Accepted: 30 September 2009

Co-Authors Adhi Prasojo Akhmad Tri Prasetyo Alfi Satriadi Ali Ali Andriana Kartina Wingtyas Anindya Wirasatriya Aris Ismanto Asri Wahyuningsih Azhar Afi Azis Rifai B Budiawan Baskoro Rochaddi Chairun Annisa Aryanti Chairun Annisa Aryanti Denny Nugroho Sugianto Djunaedi Muljawan Dwi Haryo Ismunarti Dwi Haryo Ismunarti Elis Indrayanti F. Rafsani Fannia Wahyu Ramadhanty Gentur Handoyo Ghifari Raihan Silam Siregar H. Suseno H. Suseno H. Suseno Hariyadi Hariyadi Heny Suseno Heny Suseno Heny Suseno Heny Suseno Heryoso Setiyono Jarot Marwoto Kunarso Kunarso Laksmono Widagdo Larosa Nurfikri Gamellia Lilik Maslukah M. Makmur M. N. Yahya M.J. Pratiwi Metrio Swandiko Mohamad Nur Yahya Muh Yusuf Muhammad Alif Achyansyah Muhammad Helmi Muhammad Sababa Alhaq Muhammad Zainuri Murdahayu Makmur Navila Bidasari Alviandini Nugroho Agus D Nuriyati Nuriyati Oceana Windyartanti Osen Faber Romario Tampubolon Petrus Subardjo Purwanto Purwanto Putranto Kondang Wijaya Ratih Indraswari Reza Agung Arjana Rikha Widiaratih Sa'iyd Husayn Ahmadi Siti Nurul Aini Siti Saodah Sri Yulina Wulandari Sugeng Widada Sumi Hudiyono Syafiq Muhammad Aziz Syafrei Adi Iskandar Teguh Agustiadi Trinugroho Trinugroho Tulus Aldrian Siregar Wahyu Retno Prihatiningsih Wahyu Retno Prihatiningsih Wahyu Retno Prihatiningsih Wahyu Retno Prihatiningsih Warsito Atmodjo Yvette Agyiriba Aggrey Zanet Dwi Aprilia

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