Article Per Year (5 Year)
p-Index From 2020 - 2025
0.408
P-Index
This Author published in this journals
All Journal International Journal of Natural Science Studies and Development (IJOSS)
Irsan Irsan
Department of Biology Education, Teaching and Education Faculty, Iqra Buru University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Industrial & Manufacturing Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Analysis of the Quality of the Anahoni River Based on Physical and Biological Parameters M. Sehol; Kasmawati; Rosita Mangesa; Irsan Irsan; Rosmida R Dahlan
International Journal of Natural Science Studies and Development (IJOSS) Vol. 2 No. 1 (2025): IJOSS
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/ijoss.v2i1.19

Abstract

This study aims to analyze the quality of the waters of the Anahoni river due to gold mining by covering physical and biological parameters. Physical parameters include color, temperature and TSS (Total Suspended Solids). In the results of measuring the color of the waters of the Anahoni River and Waelata River at all research stations, it ranges from 1 - 5 NTU, which is still below the maximum limit. The results of the water temperature values ​​at the research stations varied between 26.4 – 34.40C. The measured water TSS value at all research stations ranged from 0.011 - 0.018 indicating that the TSS value was below the quality standard value. Biological parameters using coliform bacteria. The results of using fecal coliform bacteria varied at each research station with a range of 0 – 68 MPN/100 mL
Analysis of the Concentration of Mercury (Hg) in the Soil Around the Gold Mining Processing Area in Buru Regency M. Sehol; Kasmawati Kasmawati; Rosita Mangesa; Irsan Irsan; Rosmida R Dahlan
International Journal of Natural Science Studies and Development (IJOSS) Vol. 2 No. 1 (2025): IJOSS
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/ijoss.v2i1.20

Abstract

Mercury is widely used in Unlicensed Gold Mining (PETI) in Indonesia, one of which is PETI activities in the Buru Regency area. Traditional gold mining in this area began in 2011, initially starting at the Mount Botak location, Wamsait Hamlet, Dava Village, Waelata District, and was subsequently carried out in four other locations, namely in the Lea Bumi, Gogorea, Derlale/Metar and Waepotih/Waedanga areas. This research aims to determine mercury levels in the soil around gold mining locations. This type of research is a survey with a quantitative approach. This research is divided into several stages, namely: (1) Research design; (2) Field research; (3) Data collection; (4) Laboratory analysis; (5) Data processing. The research results show that there is heavy metal mercury contamination in the soil and plants around the gold mining processing area in Buru Regency. For soil samples, of the 43 samples analyzed, 41 samples were detected with mercury concentrations exceeding the quality standard limit, where the highest concentration reached 18,430 ppm. This indicates that unlicensed gold mining in Buru Regency which uses the heavy metal mercury in the processing process has a serious impact on pollution, especially on the land around the gold mining area.
Co-Authors Kasmawati Kasmawati Kasmawati Rosita Mangesa Rosmida R Dahlan Sehol, Muhamad