Judul: Effect of vegetation and ambient temperature to absorbtion of NO2 gas pollutant
Abstrak: Street side green belt giving an esthetics value and increasing environmental quality. However existence of street side green belt in Indonesia, especially in urban area shows toward degradation of their quality. This thing caused by increasing of construction in urban, such as; infrastructure, settlement, commerce and industrial activity and transportation. Negative impact of construction in urban area is lowering of the environmental quality. The real form of degradation environmental quality is incidence of environmental contamination problem like ; water, soil and air pollution. Pollution problem can be reduced through by revegetation of town or urban forest. Plant can lessen pollution problem around the street through absorbtion of gas pollutant and adsorption of particle at leaf surface. To measure absorption of NO2 gas pollutant by plant of leguminoseae/fabaceae exposure to gas 15NO2 in gas chamber. Plant is exposured by gas during 60 minutes at concentration of 3 ppm ( v/v). Exposure treatment conducted at condition of temperature 30°C and 20°C, light intensity 1000 luxes and relative humidity of 60% twice replication. Plant species were exposured consisted of : flamboyan, asam jawa, petai, lamtoro, sengon, saga pohon, kaliandra and gamal. After plant were treated with gas 15NO2 , parts of plant cut and disjointed between roots, bar and leaf. After dried at temperature 80°C during 48 hours, every part of the plant were milled to be smooth. Total nitrogen content is analysed with kjeldahl method. After sample is prepared in the form of liquid, abundance 15N is analysed with spectrometer emission (NOI-6PC Analyzer). Result of research shows level of 15N absorption varied. Among 8 plant absorption ranged from 18,96 μg/g - 44,98 μg/g at temperature 30°C and from 13,90 μg/g - 26,99 μg/g at temperature 20°C. Plants which have the highest absorption is petai ( 44,98 μ g/g) and the lowest is flamboyan ( 13,90 μ g/g). Species that having highest level absorption suggested to be utilized in street side landscape plants functioned to lessen air pollution, especially gas NO2. stomata size has a positive correlation to absorption of gas 15N at both temperature, while respiration rate has a positive correlation to absorption rate on temperature of 30ºC and doesn't has an effect at temperature 20ºC. Absorption of NO2 is higher on 30ºC, than on 20ºC.
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Judul: IPB (Bogor Agricultural University)
Abstrak: Transportation is an important source of anthropogenic air pollutants including carbon monoxide (CO), nitrogen dioxide (NO2), and sulfur dioxide (SO2). Vegetation has long been known to have the ability to absorb these pollutants through gas exchange processes. A number of works to investigate plant capability in absorbing NO2 have been reported in several literatures; however, information on plants tolerance to NO2 is very limited. The objectives of this study attempt to infer the effectiveness and tolerance of specified local plants in reducing NO2 through a sequence of laboratory and field experiments, which is primarily to investigate NO2 based nitrogen, and explore distributional patterns of NO2 in specified plants. Plant species are chosen from a variety of greenbelt trees and through the analysis of total ascorbate which suggest the selection of eight greenbelt trees species. They are Pterocarpus indicus, Lagerstroemia speciosa, Casuarina sumatrana, Delonix regia, Gmelina arborea, Cinnamomum burmanii, Swietenia macrophylla, and Mimusops elengi. The capability of plants to absorb and the translocation NO2 are analyzed from experiment using labeled nitrogen (15NO2). Fields experimental data are collected from a highly polluted location around midway of Jagorawi highway and a relatively unpolluted area of Sindangbarang field station. Relative growth rate and physiological parameters recorded include height, leaf area, total ascorbate, total chlorophyll, leaf-extract pH, and relative water content. Relative growth rate is calculated from measurements of plant heights and leaf areas, while plant physiological data are presented as APTI (Air Pollutant Tolerance Index). Tolerance of plant species is calculated based on the relative growth rate obtained previously. Distributional patterns of NO2 and plants capability in absorbing NO2 are derived from measurements of NO2 concentrations in both the uncovered and covered locations.
Keyword: West Java, Jagorawi highway, Sindangbarang field station, Pencemaran udara

Judul: Hydatidosis Pada Anjing
Abstrak: Hydatidosis disebut juga echinococcosis merupakan penyakit parasiter yang menyerang hewan, disebabkan oleh genus Echinococcus dan salah satu spesies pada anjing yang bersifat kosmopolitan serta pernah timbul di Indonesia adalah Echinococcus granulosus. Echinococcus granulosus merupakan cacing pita yang sangat kecil panjangnya hanya 2-5 mm, terdiri dari scolex, neck, dan 3-4 proglottid. Scolex mempunyai 4 sucker dan sebuah rostellum yang dilengkapi dengan 2 baris kait yang masing-masing terdiri dari 30 buah. Kait yang besar panjangnya 33.2-39.8 u sedangkan yang kecil 22.1-34 u. Proglottid yang pertama immature, yang kedua mature, dan yang ketiga proglottid gravid. Lubang kelamin terletak disebelah lateral berselang-seling tidak beraturan, testes berjumlah 38-52 buah. Ovariumnya berbentuk seperti ginjal dan uterusnya mempunyai diverticulum lateral. Jenis cacing ini yang ditemukan di Indonesia tidak mempunyai neck. Siklus hidup E. granulosus memerlukan induk semang intermediate untuk perkembangan telur menjadi kista dan induk semang defenitif untuk perkembangan kista menjadi cacing dewasa. Domba merupakan hewan yang paling subur untuk perkembangan stadium kistanya dan bersama anjing kedua hewan ini memegang peranan penting dalam penyebaran penyakit ini. Domba biasanya terinfeksi melalui makanan atau minuman yang terkontaminasi telur cacing. Telur-telur yang tertelan ini akan menetas menjadi oncosphere, lalu menembus dinding usus masuk ke saluran limfe atau vena kecil di mesenterium yang kemudian dengan aliran darah terbawa ke seluruh tubuh. Oncosphere ini biasanya menetap di hati dan paru-paru. Bila oncosphere telah berubah menjadi kista dan termakan oleh anjing maka infeksi dapat berlangsung pada anjing hingga mencapai bentuk cacing dewasa. Penyakit ini telah tersebar di seluruh dunia, mencakup banyak hewan tanpa membedakan umur dan jenis kelamin. Menyebabkan kerugian ekonomi yang besar terhadap ternak bahkan dapat menyerang manusia. Akibat adanya kista adalah timbulnya kelemahan, anorexia, dyspnoe, kurus, dan akhirnya kematian dari induk semang. Kebersihan lingkungan terutama yang berkaitan dengan anjing adalah tindakan pencegahan yang utama sedangkan tindakan pembedahan merupakan salah satu usaha yang agak memuaskan dalam penanganan penyakit ini.
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