Judul: Karakteristik Fisik Debu Jatuh dan Partikel Tersuspensi dari Industri Semen, Pengolahan Kayu dan Pembakaran Batu Kapur di Bogor
Abstrak: Cement industry, sawmill, and limestone kiln are potential sources of air pollution. The aim of the research was to describe physical characteristics of dustfall and suspended particulate, i.e. their concentration in ambient air, shape and size distribution frequency that was generated by each industry. The method used in this research was gravimetric based on SNI 19-7119.6-2005 and SNI 19- 7119.3-2005. Result of the measurement showed that the highest dustfall concentration was found in sawmill, i.e. 8.7 ton/km2month. The highest concentration of total suspended particulate (TSP) was found in sawmill as well , i.e. 131 μg/Nm3. Dustfall from cement industry have generally round shape with rough surface. Dustfall from sawmill have irregular shape, porous structure, long shape and rough surface. Dustfall from limestone kiln’s shape were rounded and oval. 85% of dustfall from cement industry ranged from 0 to 2.5 μm. 74% of dustfall from sawmill ranged from 100 to 500 μm and 65% of dustfall from limestone kiln were in between 2.5 to 10 μm.
Keyword: sawmill, limestone kiln, suspended particulate, cement industry, dustfall

Judul: Debu Jatuh dan Total Suspended Particulate dari Tanah Regosol pada berbagai Kecepatan Angin, Kadar Air Tanah dan Tutupan Lahan
Abstrak: Partikulat penting yang berada di atmosfer perkotaan seperti particulate matter (PM) dan debu tidak hanya mempengaruhi kualitas udara kota, tetapi juga berpengaruh terhadap masalah kesehatan masyarakat. Tujuan penelitian ini adalah mengukur dan menganalisis debu jatuh dan Total Suspended Particulate (TSP) serta korelasinya dengan kecepatan angin, kadar air tanah dan tutupan lahan pada tanah Regosol Kota Bandar Lampung. Penelitian dilakukan berdasarkan SNI 13- 4703-1998 dan SNI 19-7119.3-2005. Analisis tekstur tanah dilakukan dengan metode hidrometri yang mengacu pada USDA. Bangkitan debu jatuh rata-rata pada tanah Regosol dari Kota Bandar Lampung melebihi baku mutu untuk daerah pemukiman tetapi tidak melebihi baku mutu daerah industri dengan nilai 16 ton/km2/bulan. Bangkitan TSP tidak melebihi baku mutu dengan nilai 106 μg/Nm3. Bangkitan debu jatuh dan TSP berkorelasi positif terhadap kecepatan angin dan berkorelasi negatif terhadap kadar air tanah dan tutupan lahan. Faktor emisi debu jatuh dan TSP dipengaruhi oleh kecepatan angin, kadar air tanah dan tutupan lahan.
Keyword: baku mutu, debu jatuh, faktor emisi, Regosol, total suspended particulate

Judul: Posisi Filogenetik Kura-Kura Carettochelys Insculpta  (Reptillia: Testudinata)
Abstrak: Carettochelys insculpta is an endemic freshwater turtle of southern Papua and northern Australia. Phylogenetic position of this turtle is remain unresolved until now. Most of the research conducted show close relationships of C. insculpta and members of Trionychidae family. However, some of the research show distance between C. insculpta and members of Trionychidae family. This research is conducted to analyze phylogenetic relationship between C. insculpta and other members of Testudinata using 12S rRNA, 16S rRNA, and both gene as markers. DNA samples were obtained from three different organisms of C. insculpta. Two species used as outgroups were Alligator mississippiensis and Iguana iguana. Phylogenetic analysis was carried out using Neighbor-Joining method with Felsenstein 1981 (F81) modeltest. A polytomy tree of Testudinata was produced by using 12S rRNA gene. However, analysis using 16S rRNA and both genes as markers confirmed that C. insculpta was located between the Chelonidae and the Trionychidae family.
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