<![CDATA[Pulau Rote merupakan gugusan pulau terdepan NKRI paling selatan yang berbatasan dengan Australia. Pada tahun 2009 terjadi tragedi meledaknya sumur minyak Montana di Blok Atlas Barat Laut Timor yang mengakibatkan pencemaran di perairan Pulau Rote. Hal ini berpotensi dampak pada penurunan kualitas air, ikan tangkap, rumput laut, budidaya mutiara dan rusaknya terumbu karang serta tanaman mangrove. Penelitian Lingkungan dan Geologi Pantai di Perairan Pantai Timur Pulau Rote, Nusa Tenggara Timur dilakukan pada bulan September-Oktober 2012. Dalam penelitian ini, diambil 40 sampel air secara acak dan sesaat tanpa memperhatikan waktu/musim. Tujuan sampel air terpilih digunakan untuk analisis logam berat yaitu kadmium (Cd), tembaga (Cu), timbal (Pb), dan Seng (Zn) dengan menggunakan metoda Atomic Absorption Spectrophotometry (AAS). Tujuan penelitian ini adalah untuk mendapatkan data dan informasi karakteristik kimia air laut untuk mendukung kegiatan wisata bahari. Kualitas logam berat dalam satuan ppm yang terukur berkisar antara : Pb (<0.001-0.017); Cu (<0.001-0.015); Zn (0.008-0.275); Cd (0.0002-0.0005). Nilai status mutu air laut berdasarkan kualitas logam berat yang terukur menurut Metode Storet diketahui : kualitas air laut di perairan termasuk kelas B baik (tercemar ringan) skor -2.Kata kunci kualitas air, logam berat, nilai status mutu, timur Pulau Rote Rote Island is a outers island of southern NKRI which bordering Australia. In 2009, tragedy explosion of oil wells in Block Atlas Montana West Timor which resulted in the pollution of the waters of the island of Rote. This could potentially impact on the quality of water, catching fish, seaweed, pearl cultivation and destruction of coral reefs and mangroves. Environmental and Coastal Geological Research in the Coastal Waters of East Coast Rote Island, East Nusa Tenggara was conducted in September-October 2012. In this study, 40 samples were taken at random and instantaneous water regardless of time / season. Purpose water samples selected for analysis of heavy metals, such as Cadmium (Cd), Cuprum (Cu), Plumbum (Pb), and Zinc (Zn) using the method of Atomic Absorption Spectrophotometry (AAS). The purpose of this study was to obtain data and information on the latest chemical characteristics in seawater to support marine tourism activities. Heavy metals quality in ppm ranges between: Pb (<0.001-0.017); Cu (<0.001-0.015); Zn (0.008-0.275); Cd (0.0002-0.0005). The water quality status value is based on the quality of heavy metals measured according to Storet methods, whereabout : sea water quality status value belongs to the class B good (lightly polluted) score of -2. Keywords: water quality, heavy metal, quality status value, east Rote Island]]>
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