Judul: Estimasi Nilai Kerugian Masyarakat Akibat Pencemaran Air Tanah di Sekitar Kawasan Industri (Studi Kasus Industri Keramik di Kelurahan Nanggewer, Kabupaten Bogor)
Abstrak: One of the activities of economy, like an industrial activity may reduce the level of environmental quality. The study of the estimation of both external cost and public compensation (WTA), the effects toward environment caused by industrial activities is needed to achieve sustainable development. The objectives of this study are to identify the negative externality effect of the industry activity, to estimate economic losses and WTA value caused by industrial activities, and to identify the factors that influence WTA value. This paper presents explores the descriptive analysis, valuation of environmental economics, and application of Contingent Valuation Methods (CVM). The result shows that the economic loss of each household per month is IDR 125,716.67 and the average values of household’s WTA per month is IDR 497,674.42. There are seven factors those influence WTA value significantly such as age, gender, income, economic loss caused by replacement cost, education level, the distance between houses and industry area, and economic loss caused by medical cost.
Keyword: Willingness to Accept (WTA), estimation, economic losses, CVM, ceramic industry

Judul: Estimasi Nilai Kerugian Ekonomi Masyarakat Akibat Kegiatan Industri Pengolahan Aspal Di Kelurahan Kayumanis, Kota Bogor
Abstrak: Meningkatnya kebutuhan hidup manusia telah mendorong terjadinya pembangunan di berbagai sektor, termasuk sektor industri. Aktivitas industri sendiri dapat memberikan dampak berupa penurunan kualitas lingkungan. Tujuan dari penelitian ini adalah untuk mengidentifikasi kerugian yang dialami masyarakat akibat kegiatan industri, memperkirakan nilai kerugian masyarakat, mengetahui nilai Willingness to Accept (WTA) masyarakat, dan mengidentifikasi faktor-faktor yang mempengaruhi nilai WTA. Penelitian ini menggunakan pendekatan cost of illness, loss of earnings, dan Contingent Valuation Method (CVM). Hasil penelitian menunjukkan bahwa kerugian ekonomi setiap rumahtangga adalah Rp161.751,04,- per tahun dan nilai rata-rata WTA setiap rumahtangga sebesar Rp821.428,56 per tahun. Faktor-faktor yang mempengaruhi nilai WTA adalah usia responden, pendidikan, jumlah tanggungan keluarga, jarak tempat tinggal dengan industri, dan kualitas udara di sekitar tempat tinggal responden
Keyword: CVM, industri pengolahan aspal, kerugian ekonomi, Willingness to Accept (WTA)

Judul: Prenilasi Senyawa β-Diketon sebagai Prekursor 3-Prenilflavon
Abstrak: One group of flavonoids that has not been commonly synthesized is 3- prenylflavone. The main objective of this experiment was to synthesize precursor of 3-prenylflavone. Firstly, β-diketone was synthesized via 4 steps from phenol as starting compound with total yield of 24%. Prenylation of β-diketone with prenyl bromide and K2CO3 base produced 4 fractions which were separated by using preparative thin layer chromatography (PTLC) with n-hexane:EtOAc (8:2) as the eluent. Fraction with Rf = 0.80 was further separated by using preparative PTLC with n-hexane:EtOAc (99:1) as the eluent. Two fractions were obtained with Rf = 0.38 and 0.42. The first fraction has been characterized as diprenylated β-diketone with 49% yield. Application of protecting group on the phenolic OH group in β- diketone are needed to obtain monoprenylated β-diketone which can be further cyclized into 3-prenylflavone
Keyword: