Judul: Greenhouse Gas Emissions Value Based on Household Activities in Neglasari Village, Bogor Regency
Abstrak: Pemanasan global timbul akibat adanya aktivitas penghasil emisi Gas Rumah Kaca (GRK) yang kemudian berdampak kepada perubahan iklim. Nilai emisi GRK tergantung dengan tingkat konsumsi aktivitas rumah tangga. Emisi yang akan dihitung merupakan emisi GRK dengan konsentrasi tertinggi yaitu CO2, CH4, dan N2O. Emisi tersebut dihasilkan dari konsumsi energi listrik, bahan bakar masak, bahan bakar minyak, sampah, aktivitas bertani dan beternak. Tujuan penelitian ini yaitu: (1) Menjabarkan dan menghitung nilai emisi GRK yang dihasilkan oleh aktivitas rumah tangga; (2) Mengidentifikasi faktor-faktor yang memengaruhi nilai emisi GRK di Desa Neglasari; (3) Menghitung nilai ekonomi karbon dari nilai emisi GRK yang dihasilkan. Penelitian ini menggunakan metode analisis deskriptif kuantitatif dan nilai emisi GRK IPCC 2006, analisis regresi linear berganda dan analisis deskriptif kuantitatif, serta analisis nilai ekonomi karbon. Hasil penelitian ini menunjukan bahwa: (1) Nilai semisi GRK di Desa Neglasari yaitu 1.247.364,80 kg CO₂-e/bulan dengan nilai rata-rata emisi per rumah tangga yaitu 411,40 kg CO₂-e/bulan; (2) Pendapatan rumah tangga dan dummy status kepemilikan rumah merupakan faktor-faktor yang berpengaruh terhadap nilai emisi GRK; (3) NEK per rumah tangga yaitu Rp138.646/bulan dan NEK satu lingkup Desa Neglasari yaitu Rp421.809.752/bulan., Global warming arises due to activities that produce greenhouse gas emissions, which subsequently have an impact on climate change. The level of greenhouse gas emissions depends on the level of household activity consumption. The emissions to be calculated consist of greenhouse gas emissions with the highest concentrations: carbon dioxide, methane, and nitrous oxide. These emissions are generated from the electricity consumption, cooking fuel consumption, oil fuel consumption, waste, agriculture activities and livestock farming. The objectives of this research are: (1) to describe and calculate greenhouse gas emissions value produced by household activities; (2) to identify the factors that affect greenhouse gas emissions in Neglasari Village; (3) to calculate the economic value of greenhouse gas emissions produced. This research uses the IPCC 2006 greenhouse gas emissions value method, multiple linear regression analysis, quantitative descriptive analysis and carbon economic value. The results of this research indicate that: (1) the greenhouse gas emissions value in Neglasari Village is 1.247.364,80 kg CO₂-e/month, with an average emissions value per household of 411,40 kg CO₂-e/month; (2) household income and house ownership status dummy are factors that influence greenhouse gas emissions; (3) the carbon economic value per household is IDR138,646/month, and the carbon economic value for the entire scope of Neglasari Village is IDR421,809,752/month.
Keyword: Carbon economic value, Global warming, Income, IPCC, Multiple regression analysis

Judul: Estimasi Emisi Gas Rumah Kaca Berbasis Aktivitas Rumah Tangga di Desa Sinarsari, Kecamatan Dramaga, Kabupaten Bogor
Abstrak: Perubahan iklim merupakan dampak dari pemanasan global. Pemanasan global diakibatkan oleh peningkatan konsentrasi gas rumah kaca (GRK) di atmosfer. Salah satu sektor penyumbang GRK paling besar adalah sektor energi yang di dalamnya terdapat unit rumah tangga (RT) dengan beragam aktivitas di dalamnya. Aktivitas rumah tangga diantaranya adalah aktivitas penggunaan LPG, listrik, bensin, aktivitas penghasil sampah, dan aktivitas bertani dan beternak yang bertujuan untuk memenuhi kebutuhan di dalam rumah tangga. Tingginya emisi GRK yang dihasilkan dalam rumah tangga dipengaruhi oleh pendapatan, lama belajar, dan tingkat pengetahuan emisi. Tujuan penelitian ini yaitu mengestimasi besar emisi GRK yang dihasilkan dari aktivitas rumah tangga, menganalisis faktor-faktor yang memengaruhi emisi GRK, dan mengestimasi besar nilai ekonomi karbon. Metode analisis yang digunakan yaitu analisis deskriptif kuantitatif, metode IPCC (2006), regresi linear berganda, dan analisis nilai ekonomi karbon. Hasil penelitian menunjukkan bahwa: (1) Emisi CO2-eq yang dihasilkan di Desa Sinarsari terhadap 100 responden sebesar 32.011,68 kg CO2-eq/bulan dan besar emisi GRK dalam satu lingkup desa sebesar 853.431,36 kg CO2-eq/bulan. (2) Pendapatan, lama belajar, dan dummy pengetahuan emisi memiliki pengaruh terhadap emisi GRK. 3) Nilai ekonomi karbon yang didasarkan pada carbon pricing sebesar Rp287.415.199,70/bulan., Climate change is the impact of global warming. Global warming is caused by increasing concentrations of greenhouse gases (GHG) in the atmosphere. One of the biggest GHG contributing sectors is the energy sector, which contains household units (RT) with various activities. Household activities include activities using LPG, electricity, gasoline, waste producing activities, and farming and livestock activities which aim to meet household needs. The high GHG emissions produced in a household are influenced by income, years of study, and level of knowledge about emissions. The aim of this research is to estimate the amount of GHG emissions resulting from household activities, analyze the factors that influence GHG emissions, and estimate the economic value of carbon. The analytical methods used are quantitative descriptive analysis, the IPCC (2006) method, multiple linear regression, and analysis of the economic value of carbon. The research results show that: (1) The CO2-eq emissions produced in Sinarsari Village for 100 respondents were 32,011.68 kg CO2-eq/month and the amount of GHG emissions within one village was 853,431.36 kg CO2-eq/month. (2) Income, length of study, and emissions knowledge dummy have an influence on GHG emissions. 3) The economic value of carbon based on carbon pricing is IDR 287,415,199.70/month.
Keyword: IPCC, economic value of carbon, income, influence, regression

Judul: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
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