Judul: ABSTRAK ANDREA MUSTIKA FEBRIANTI. Evaluasi Fungsi Fisik dan Toleransi Pohon Tepi Jalan terhadap Polusi Udara di Lingkar Luar Kebun Raya Bogor
Abstrak: Lanskap jalan merupakan fasilitas penunjang untuk para pengendara motor. Aktifitas pada lanskap jalan tidak lepas dari penggunaan kendaraan. Pembakaran bahan bakar pada kendaraan menyebabkan terjadinya pencemaran udara karena menghasilkan zat pencemar udara. Pohon sebagai salah satu bagian lanskap jalan menjadi salah satu elemen ekologi yang penting untuk lingkungan dan mahluk hidup. Pohon yang ditanam ditanam di pinggir jalan atau yang biasa disebut pohon tepi jalan sebaiknya dapat mengakomodasi fungsi ekologi sebagai penyerap polusi. Sayangnya, tidak semua pohon sesuai sebagai pohon tepi jalan, salah satu hal yang dapat dinilai kesesuaiannya ada fungsi fisik dan toleransi pohon terhadap zat polusi udara. Penelitian ini bertujuan untuk mengevaluasi kesesuaian fisik pohon dalam segi mennyerap polusi gas dan menjerap polusi partikel serta toleransinya tehadap polusi udara. Metode yang digunakan adalah analisis deskriptif dengan membandingkan keadaan fungsi fisik pohon di lapangan dengan literatur yang tersedia, untuk pengukuran toleransi menggunakan metode Air Polution Tolerance Index (APTI). Diketahui dari data yang diperoleh, Lingkar Luar Kebun Raya Bogor zat polutan yang sudah diatas baku mutu ialah Pb dan H2S. Dari hasil penelitian ditemukan dari total populasi bahwa sebanyak 78,5% pohon sangat sesuai dalam sebagai penyerap polusi gas, sebanyak 4,2% sangat sesuai sebagai penjerap polusi partikel dan 77,4% sesuai sebagi penjerap polusi partikel. Untuk tingkat toleransi sebanyak 62,3% memiliki tingkat toleransi sedang dan sebanyak 35,6% memiliki tingkat toleransi sensitif.
Keyword: APTI, fungsi fisik, pohon tepi jalan, polusi udara

Judul: Evaluasi Efektivitas Tanaman dalam Mereduksi Polusi Berdasarkan Karakter Fisik Pohon pada Jalur Hijau Jalan Pajajaran Bogor
Abstrak: Pajajaran street is one of the main street in Bogor city which has been famous with a high density of vehicle so it has a of high levels of air pollution potential because of the vehicle emissions. This study was conducted to analysis the effectiveness of plants to absorb pollutants in the road side trees based on an assessment of the physical characteristics of the trees to support the surrounding environment and provide recommendations for increase the ecological function of Pajajaran Bogor road side trees in reducing the air pollution. The method of this study used descriptive analysis, spatial analysis, and air quality analysis used the CITYgreen 5.4. The ecological function evaluation of Pajajaran Bogor road side trees in reducing the air pollution shows there are 958 trees which very appropriate to absorb the air pollution, 238 trees which appropriate to absorb the air pollution, 70 trees which less appropriate to absorb the air pollution, and there is no tree which not appropriate to absorb the air pollution. While the function of absorbing particles evaluation shows there is one tree which very appropriate in absorbing the particles, 1136 trees which appropriate in absorbing the particles, 101 trees which less appropriate in absorbing the particles, and 73 trees which not appropriate in absorbing the particles. The result of analysis used CITYgreen 5.4 shows Pajajaran Street Bogor can reduce pollutants in the amount of 2544 lbs (1,298 ton/year) with economic benefits value by $ 6.268 (Rp75.167.175,12). Pajajaran Street Bogor need to add as many as 485 trees in an area that does not have a tree planting so as to optimally reduce the amount of pollution as much as 1.66 ton/year, equivalent to the economic value of Rp 121 095 216.
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Judul: Synthesis of Apatite - Chitosan Composite Using Duck Eggshell and Chitosan with Temperature and pH Control
Abstrak: Composite of apatite-chitosan was prepared by using chitosan as polymer matrix. Calcium phosphate was prepared from CaO and (NH4)2HPO4, which the ratio Ca : P had to be 1.67. Chitosan is produced by deacetilase from biopolymer chitin. Duck eggshell (95% CaCO3) as starting material was converted to be calcium oxide (CaO) through calcinations with temperature 1000oC for 5 hours. In-situ and ex-situ methods were prepared from apatite and chitosan (dissolved with acetate acid 2%). Calcium phosphate prepared for bone implantation, but it is too fragile and brittle to be implant into the body. So addition of chitosan can decrease crystalinity and increase mechanic characteristic (tougher). Composite apatite-chitosan was resulted by fast precipitation. Fast precipitation was held in a breaker glass with nitrogen atmosphere, under controlled temperature at 37oC and pH 7, in order to increase amount of hydroxyapatite. Precipitation with CaO which was dropped by (NH4)2HPO4. Hydroxyapatite and chitosan were appearing at samples with in-situ and ex-situ methods which indicating by peak matching of XRD (closed lattice parameter, crystal size), overlapping at FTIR spectra and supporting by SEM picture (homogenous and agglomerated particle). However, it still needs further research to examine biocompatibility osteoconductive degree of sample by in-vivo and in-vitro test.
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