Judul: Penggunaan Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) untuk Simulasi Sebaran Polutan NO2 dan SO2
Abstrak: HYSPLIT is a model primarily designed to predict the trajectory, dispersion, and concentration of pollutants from a single or multiple sources. The model may be integrated with meteorological data fields derived from the WRF model to identify source location. Industrial area normally release various types of gas pollutants with variable concentrations, including NO2 and SO2. The abundance of the emitted pollutants will increase along with increasing industrial activities. As part of air quality management, activities to monitor air quality needs to be conducted regularly in order to control the pollutants concentrations. Utilizing a model simulation may allow us to identify the pollutants exposure potentials. The objective of this study include to understand how HYSPLIT can be used to predict and analyze trajectory of pollutants, estimate pollutants concentrations, and analyze the relationship between temperature and atmospheric stability to NO2 and SO2 concentrations. The result showes that in June trajectory is directed westward and in December trajectory it moves eastward. In addition, NO2 concentrations obtained for PT. X ranged from 350.5 to 368 and SO2 ranged from 338 to 677 . The NO2 concentrations for PT. Y ranged from 385.7 - 410.2 and SO2 ranged from 442.2 - 401.1 Temperature and atmospheric stability conditions affect the concentration of pollutants significantly. Correlation between temperature and concentration of NO2 and SO2 ranged from -0.54 to -0.69 and the correlation between atmospheric stability and the concentration of NO2 and SO2 is -0.51 to -0.78.
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Judul: Model Prediksi Distribusi Laju Penyebaran Sulfur Dioksida (SO2)dan Debu dari Kawasan Industri (Studi Kasus di Kota Cilegon)
Abstrak: This study aims to examine the characteristics of local air; analyze the concentration of air pollution emitted from factories located in an industrial area; and predict air pollution distribution the city of Cilegon. Several sequential steps of analysis are carried out which include: (1) calculation of high-layer pollutant mixing in the atmosphere (mixing height), (2) analysis of emission of air pollutant from the source point using screen3 model; (3) analysis of distribution of air pollutant from the industrial area using general transport equation of unsteady flow. Based on climatology, Pasquill stability criterian indicate that stability profile in the region ranges from A (very unstable) to E (slightly stable). Pollutant distribution from the industry depends on the height of the chimney. The higher the chimney is, the further the distribution of the pollutant as a result of emission is expected to be. The highest concentration of SO2 is found in the emission of industry area, with atmosfheric stability class A (very unstable), whereas furthest distance occurred stability E class (slightly stable). The distribution of SO2 extends towards Tamansari village of Pulomerak District. From 24 sampling points, the highest concentration of 55,75 ìg/m3 occurred in the ASDP Merak. The levels and patterns of air pollutant distribution in the area need to be taken into account, particularly in the interest of protecting public healthlife from the impacts caused by the pollutant.
Keyword: General equation of transport, Screen3, Unsteady flow, Banten, Characteristics of local air

Judul: Embriogenesis ikan buta (Astyanax fasciatus)
Abstrak: Ikan buta Astyanax fasciatus adalah spesies ikan unik dari famili Characidae yang menempati perairan dalam gua di Wilayah La Cueva Chica-San Luis Potasi-Mexico. Ikan ini memiliki mata yang tereduksi (Blind Cavefish) dan warna kulit merah muda, pucat serta mengkilap.
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