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All Journal BIOTROPIA - The Southeast Asian Journal of Tropical Biology Hearty : Jurnal Kesehatan Masyarakat
Warno Utomo, Suyud
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Veterinary Other

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STRES OKSIDATIF PADA PEKERJA YANG TERPAJAN BENZENA MELALUI PENGUKURAN PLASMA MALONDIALDEHID (MDA) (STUDI KASUS PADA PEKERJA BENGKEL SANDAL/SEPATU DI DESA SUKAJAYA, KECAMATAN TAMANSARI, KABUPATEN BOGOR TAHUN 2018) Fatimah, Ratih; Warno Utomo, Suyud
HEARTY Vol 8 No 1 (2020): FEBRUARI
Publisher : Fakultas Ilmu Kesehatan, Universitas Ibn Khaldun, Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/hearty.v8i1.3628

Abstract

Perakitan sepatu menggunakan perekat atau lem yang mengandung senyawa organik volatil (diantaranya benzena, toluen, dan xylen. Benzena dan metabolitnya terbukti dalam peningkatan stres oksidatif yang terlihat dari peningkatan malondialdehid (MDA). Penelitian ini bertujuan untuk mengindentifikasi konsentrasi benzena di udara tempat kerja dan hubungan antara benzena di dalam tubuh melalui pengukuran biomarker S-Phenylmercapturic Acid (S-PMA) terhadap stres oksidatif melalui pengukuran kadar plasma MDA pekerja bengkel sandal/sepatu. Penelitian ini menggunakan studi cross-sectional pada sepuluh bengkel sandal/sepatu. Jumlah sampel sebanyak 64 pekerja diambil dengan metode total sampling. Hasil penelitian menunjukkan rata-rata konsentrasi benzena di udara empat kerja masih dibawah NAB yang ditentukan oleh Peraturan Menteri Tenaga Kerja No. 13 Tahun 2011 yaitu 0,002066 ppm dan tidak ada hubungan yang signifikan antara konsentrasi S-PMA dalam urin terhadap kadar MDA plasma darah akan tetapi pekerja yang memiliki konsentrasi S-PMA lebih tinggi berisiko 1,31 kali lebih besar memiliki kadar MDA yang lebih tinggi.
PREDICTING THE FUTURE DISTRIBUTIONS OF ENDEMIC RATTAN CALAMUS JAVENSIS BLUME UNDER CLIMATE CHANGE SCENARIOS CMIP 5 RCP 8.5 IN 2050 AND 2070 IN WEST JAVA: Predicting the future distributions of endemic rattan Wibowo, Andri; Warno Utomo, Suyud
BIOTROPIA Vol. 32 No. 2 (2025): BIOTROPIA Vol. 32 No. 2 August 2025
Publisher : SEAMEO BIOTROP

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Abstract

HIGHLIGHTSInformation on how climate change can shape Calamus javensis distributions is still lackingThe study used SDM with RCP 8.5 scenario for the years 2050 and 2070Suitable habitats for C. javensis are expected to decline by approximately 46.34%Suitable habitats for C. javensis are expected to be concentrated in western parts of West Java ABSTRACTC. javensis is an endemic rattan plant in West Java. While the information on how climate change can shape C. javensis distributions and how C. javensis can cope climate change conditions is still lacking. This information is required considering that C. javensis is an endemic plant in West Java. Then, the purpose of this study is to model the climate change impact on future C. javensis distributions. The study using species distribution modeling (SDM) covering nine locations across West Java with RCP 8.5 climate change scenario for year 2050 and 2070. The result show under the scenarios of climate change, the only appropriate habitats for C. javensis were concentrated in western parts of West Java. Within time series and climate change scenarios, the suitable habitats categorized as very high suitable for C. javensis were estimated to decline. From 2050 to 2070, suitable habitats for C. javensis will decline by around 46.34% from 1025 to 550 km2 in 2070.
Co-Authors Andri Wibowo Fatimah, Ratih