Judul: Aplikasi Model WRF – Chem dalam Pendugaan Konsentrasi dan Dispersi PM2,5 dan PM10 (Studi Kasus : Kota Bogor tahun 2018)
Abstrak: Kota Bogor mengalami peningkatan jumlah kendaraan bermotor setiap tahun. Peningkatan jumlah kendaraan memberi kontribusi yang cukup signifikan terhadap total emisi pencemar di daerah perkotaan dengan konsentrasi utama terdapat di daerah lalu lintas padat. Model WRF-Chem (Weather Research and Forecasting-Chemistry) dapat digunakan untuk mengidentifikasi wilayah yang berpotensi terpapar sebaran pencemar dan mengestimasi pola dispersi serta konsentrasinya. Penelitian ini bertujuan menganalisis pola dispersi pencemar udara di Kota Bogor dan mengestimasi besar polutan PM2,5 dan PM10 dan menggunakan model WRF-Chem. Berdasarkan luaran dari model WRF – Chem, diperoleh konsentrasi maksimum PM2,5 dan PM10 pada bulan Juli jam 00.00 sebesar 77,7 µg/m3 dan 257,2 µg/m3. Berbeda dengan bulan Juli, pada bulan Oktober konsentrasi maksimum PM2,5 dan PM10 dari luaran WRF-Chem terjadi pada jam 21.00 masing-masing dengan konsentrasi sebesar 61,9 µg/m3 dan 205,3 µg/m3. Sebaran PM2.5 dan PM10 bulan Oktober tidak menunjukkan pola yang berbeda dengan bulan Juli. Bulan Juli dan Bulan Oktober menunjukkan polutan terkonsentrasi di bagian utara domain (Kota Jakarta, Kota Bogor bagian Utara, dan Tangerang). Pola sebaran polutan di Kota Bogor sendiri menunjukkan sebagian besar polutan terdispersi ke bagian Utara Kota Bogor., Bogor City has an increase number of two-wheeled and four-wheeled vehicles every year. Increasing number of vehicles contributes significantly to half of the total pollutant emissions in urban areas with the main concentration being in heavy traffic areas where air pollution levels almost exceed ambient air quality standards. WRF-Chem (Weather Research and Forecasting-Chemistry) model is used to identify potentially exposed areas for pollutant distribution and estimate their dispersion and concentration model. Objectives of this study are analyzing of dispersion model for air pollutants in Bogor City and estimating PM2,5 and PM10 concentration using the WRF - Chem model. Based on the output of the WRF – Chem model, the maximum concentrations of PM2,5 and PM10 in July at 00.00 were 77,7 g/m3 and 257,2 g/m3. In contrast to July, in October the maximum concentrations of PM2,5 and PM10 from the WRF-Chem output occurred at 21.00 with concentrations of 61,9 g/m3 and 205,3 g/m3 respectively. The distribution of PM2,5 and PM10 in October did not show a different pattern from July. The months of July and October showed that the pollutants were concentrated in the northern part of the domain (Jakarta City, North Bogor City, and Tangerang). The pattern of pollutant distribution in Bogor City shows that most of the pollutants are dispersed to the northern part of Bogor City. In the morning, the wind blows from the north to the south of Bogor City.
Keyword: Bogor City, PM2,5 and PM10, WRF-Chem, Pollutant Consentration

Judul: Analisis Sebaran Konsentrasi PM2,5 Menggunakan Model AERMOD Di Jalur Protokol Kota Bogor
Abstrak: Sektor transportasi dapat berkontribusi besar terhadap peningkatan pencemaran di Indonesia salah satunya yaitu terjadi di Kota Bogor. Berdasarkan hal tersebut, maka diperlukan pemantauan konsentrasi PM2,5 dengan cara melakukan analisis sebaran PM2,5 di beberapa titik jalan di Kota Bogor dengan pemodelan AERMOD. Sebaran konsentrasi PM2,5 dilakukan dengan menggunakan pemodelan AERMOD. Pengukuran konsentrasi PM2,5 dilakukan secara langsung di lapangan dan bertujuan untuk memvalidasi hasil konsentrasi dari pemodelan dengan AERMOD. Nilai konsentrasi PM2,5 hasil pemodelan memiliki nilai tertinggi yaitu sebesar 85,5 µg/m3 dan nilai terendah yaitu sebesar 5,6 µg/m3. Sedangkan nilai tertinggi pada pengukuran yaitu sebesar 53,68 µg/m3 dan nilai konsentrasi terendah yaitu sebesar 23,75 µg/m3. Perbandingan antara konsentrasi PM2,5 di lapangan dengan hasil pemodelan memperoleh nilai R2 pada hari Senin yaitu sebesar 0,7022, hari Kamis sebesar 0,5956, hari Sabtu 0,712, dan hari Minggu sebesar 0,7963. Nilai konsentrasi PM2,5 di udara ambien tidak hanya dipengaruhi oleh volume lalu lintas, beberapa faktor lain yang dapat memengaruhi nilai konsentrasi PM2,5 di lapangan yaitu kondisi meteorologis di titik lokasi, seperti suhu, kelembaban dan kecepatan angin., The transportation sector can contribute greatly to the increase in pollution in Indonesia, one of which occurs in Bogor City. Based on this, it is necessary to monitor PM2,5 concentrations by analyzing the distribution of PM2,5 at several road points in Bogor City using AERMOD modeling. The distribution of PM2,5 concentrations was carried out using AERMOD modeling. Measurement of PM2,5 concentrations was carried out directly in the field and aimed to validate the concentration results from modeling with AERMOD. The PM2,5 concentration value from the modeling results has the highest value of 85.5 µg/m3 and the lowest value of 5.6 µg/m3. While the highest value in the measurement is 53.68 µg/m3 and the lowest concentration value is 23.75 µg/m3. Comparison between PM2,5 concentrations in the field with modeling results obtained an R2 value on Monday of 0.7022, Thursday of 0.5956, Saturday of 0.712, and Sunday of 0.7963. The value of PM2.5 concentration in ambient air is not only influenced by traffic volume, several other factors that can affect the value of PM2,5 concentration in the field are meteorological conditions at the location point, such as temperature, humidity and wind speed.
Keyword: AERMOD, air pollution, emissions, particulates, PM2,5

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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