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Journal : Bumi Lestari

TOKSISITAS AKUT (LC50) SERBUK BOR (Cuttings) TERHADAP Daphnia sp. Hefni Effendi; Aditya Herry Emawan; Yusli Wardiatno; Majariana Krisanti
Bumi Lestari Journal of Environment Vol 12 No 2 (2012)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Research was aimed at determining toxicity of drilling cuttings towards Daphnia, revealed in LC50 96 hours, meaning that cuttings concentration cause 50% population of Daphnia within the period of 96 hour observation. LC50 96 hour is utilized for preliminary strategy of managing drilling cuttings. Static test was applied at the main bioassay experiment.  Mortality was as an indicator of toxicity.  Bioassay experiment refers to US-EPA (1991, 1996, 2002); Ziehl and Schmitt (2000).  Mortality and water quality fluctuation were observed at hours 2, 4, 6, 8, 24, 48, 72, and 96. Determination of LC50 96 hour was carried out by the method of Probit Analysis.  Manual count and software EPA Probit Analysis Version 1.5 were applied. LC50 96 hours cuttings towards Daphnia is 22.177 - 22,208 ppm.  This indicates that cuttings has almost non-toxic characteristic.  However, disposal of these cuttings needs oil content measurement.  If oil content meets regulation (? 10%), cuttings is allowed to be discharged to the surrounding terrestrial environment.
Co-Authors . Zairion Abdillah, Didit Abdur Rosyid Achmad Fahrudin Adham Panji Aditya Herry Emawan Afif, Muhammad Irfan Ahmad Muhtadi Ali Mashar Aliati Iswantari Anggraini, Nurlita Putri Anzani, Yunita Magrima Arbi Mei Gitarama Ari Wahyuni Ario Damar Awan Dermawan Ayu, Inna Puspa Beginer Subhan Chitra Octavina Chitra Octavina Claritha Madonsa Desrita Dewi Ratih Agungpriyono Dietriech Geoffrey Bengen Ditta Ayu Anggraini Dwi Yuni Wulandari ekamaida, ekamaida Enan M. Adiwilaga Endang Sri Wahyuni Erni Dian Fisesa Ervien Juliyanto Etty Riani Fakoubun, Nadira Fatreza, Ridho Fredinan Yulianda Gatot Yulianto Grin Tommy Panggabean Handoko Adi Susanto Hawis H Madduppa Hefni Effendi Hilman Hidayat Isdradjad Setyobudiandi Isdradjad Setyobudiandi Isdradjat Setyobudiandi Isdrajad - Setyobudi Ishak, Mursalin Johan Basmi Lalu, Jeffri Azani Lesmana Luk luk Il Maknuun Luky Adrianto Lusita Meilana M, Niken T M. Mukhlis Kamal Mahardika Rizqi Himawan Mala Nurilmala Martin Ali Iqbal Maryono Maryono Masykhur Abdul Kadir Mennofatria Boer Mujizat Kawaroe MUNTI YUHANA Neksidin Niken T.M. Pratiwi Niken T.M. Pratiwi Niken TM Pratiwi Niken TM Pratiwi Niken TM Pratiwi Niken Tunjung Murti Pratiwi Nuralim Pasisingi Nuralim Pasisingi Nurcahyanto, Arif Nurlisa Alias Butet Oji Hadijah Perdana Putra Kelana Pieka Wulandari K. Rahamadya, Aldiano Rahayu, Siti Mira Rahman, Chichilia Qaila Azzahra Rahmat Kurnia Rivaldy Sambo Palin Rizky Regina Kawirian Shofirma, Adela Sigid Hariyadi Siti Anindita Farhani Sulistiono Sulistiono SYAHRIAL SYAHRIAL Syarif, Nawas Tri Apriadi Tyas Dita Pramesthy Ujang Suhendar Wan Mansur Yunita Magrima Anzani Yusli Wardiatno Zulhamsyah Imran