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All Journal Jurnal Biologi Tropis Pendas : Jurnah Ilmiah Pendidikan Dasar
Saputra, Muhammad Ikhsan
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Other

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Risk Analysis of Lead (Pb) in Anadara granosa from the Waters of North Penajam Paser Saputra, Muhammad Ikhsan; Nurfadilah, Nurfadilah; Ritonga, Irwan Ramadhan
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i4.10295

Abstract

Blood clam (Anadara granosa), a widely consumed filter-feeder in the coastal waters of Babulu Laut, East Kalimantan, has a high potential to accumulate lead (Pb) from its environment. This study aimed to determine the concentration of Pb in A. granosa and assess the potential health risks to humans associated with the consumption of A. granosa. A total of 45 A. granosa were caught by local fishermen. Each mussel was measured for length, destroyed using an acid method, and analysed using Atomic Absorption Spectrophotometry (AAS). The results of the study found that Pb concentrations ranged from 0.114 to 0.148 mg/kg dry weight. The Pb concentration in mussels was still below the maximum limit permitted by the Indonesian National Standard (SNI 7387:2009). The health risk assessment results found that the EWI value was relatively lower than the PTWI and the HQ value was lower than 1, indicating that there was not non-carcinogenic risk to consumers. Furthermore, the average cancer risk (TR) to consumers, including adults, adolescents and children, was low. Even though the Pb concentration was below the quality threshold, consumers may still need to be cautious about consuming A. granosa sourced from the coastal waters of Babulu Laut.
Inovasi Pembelajaran Pendidikan Pancasila melalui Model PULSE untuk meningkatkan Keterampilan Kerja Sama Siswa Sekolah Dasar. Saputra, Muhammad Ikhsan; Yogi Prihandoko; Noorhapizah; Akhmad Riandy Agusta
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 10 No. 03 (2025): Volume 10 No. 03 September 2025 Terbit
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v10i03.32327

Abstract

Permasalahan utama dalam penelitian ini terletak pada rendahnya keterampilankerja sama siswa dalam mata pelajaran Pendidikan Pancasila. Kondisi inidipengaruhi oleh pendekatan pembelajaran yang belum berpusat pada siswa sertakurangnya fokus pada pengembangan kemampuan kerja sama. Akibatnya, siswabelum mampu bekerja sama secara optimal. Untuk mengatasi permasalahantersebut, penelitian ini menerapkan model pembelajaran PULSE dengan tujuanmeningkatkan keterampilan kerja sama siswa. Penelitian menggunakanpendekatan kualitatif dalam bentuk Penelitian Tindakan Kelas (PTK) yangdilaksanakan selama empat pertemuan. Subjek penelitian adalah siswa kelas IIISDN Sungai Miai 8 tahun ajaran 2024/2025, dengan jumlah 18 siswa yang terdiridari 12 laki-laki dan 6 perempuan. Data dalam penelitian ini bersifat kualitatif dandikumpulkan melalui observasi terhadap keterampilan kerja sama siswa. Hasilmenunjukkan adanya peningkatan dari 33,3% pada pertemuan pertama menjadi94,4% pada pertemuan keempat. Dengan demikian, penerapan model PULSEterbukti efektif dalam meningkatkan keterampilan kerja sama siswa.
Co-Authors Akhmad Riandy Agusta Irwan Ramadhan Ritonga Noorhapizah Nurfadilah Nurfadilah Yogi Prihandoko