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 Pencemaran Di Sekitar Kawasan Industri Baja (Kelurahan Tegal Ratu, Kecamatan Ciwandan, Kota Cilegon).
Abstrak: Industri baja telah berkembang pesat di Indonesia salah satunya di Kelurahan Tegal Ratu. Penelitian ini dilakukan untuk mengidentifikasi eksternalitas positif dan negatif yang dirasakan masyarakat akibat aktivitas industri baja menggunakan metode analisis deskriptif kualitatif, mengestimasi nilai kerugian ekonomi yang ditanggung oleh masyarakat menggunakan metode cost of illness dan loss of earnings, mengestimasi nilai dana kompensasi yang bersedia diterima oleh masyarakat menggunakan Contingent Valuation Method (CVM), dan mengidentifikasi faktor-faktor yang memengaruhi besarnya kesediaan masyarakat dalam menerima dana kompensasi menggunakan analisis regresi linier berganda. Eksternalitas dirasakan oleh responden di RW 01 dan RW 06 Kelurahan Tegal Ratu, Kecamatan Ciwandan. Hasil yang diperoleh yaitu eksternalitas positif yang terjadi yaitu peningkatan lapangan pekerjaan dan peningkatan usaha mikro. Eksternalitas negatif yang terjadi yaitu pencemaran udara dan debu, kebisingan, serta terganggunya kenyamanan. Rata-rata kerugian setiap rumah tangga akibat pencemaran oleh industri baja yaitu sebesar Rp217 767.48/rumah tangga/tahun. Nilai dugaan rata-rata Willingness to Accept (WTA) responden yaitu sebesar Rp515 769.24/rumah tangga/tahun. Faktor-faktor yang berpengaruh nyata pada besarnya nilai WTA responden adalah usia, tingkat pendidikan, jarak tempat tinggal ke industri, dan dummy udara menyesakkan.
Keyword: eksternalitas, industri baja, kerugian ekonomi, pencemaran udara, 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
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