Studi Sebaran Parameter Fisika Kimia Di Perairan Porong Kabupaten Sidoarjo

Perairan Muara Sungai Porong Kabupaten Sidoarjo merupakan daerah yang di sekitarnya masih banyak terdapat pemukiman, pertambakan atau perikanan budidaya. Pembuangan limbah dan lumpur ke Sungai Porong semakin memperparah beban Sungai Porong dari polutan yang berakibat air menjadi keruh, sedimentasi lumpur dan kualitas air di wilayah tersebut menurun tajam. Tujuan penelitian ini adalah untuk mengetahui sebaran konsentrasi parameter kualitas air yang meliputi suhu, kekeruhan, salinitas, pH dan DO di Perairan Porong, Kab. Sidoarjo. Metode penelitian yang digunakan pada penelitian ini adalah metode deskriptif, yang diterapkan pada 12 titik stasiun. Pengambilan sampel dilaksanakan pada tanggal 18 Desember 2013. Data yang dikumpulkan sebagai variabel ukur adalah suhu, kekeruhan, salinitas, pH, DO dan kecepatan serta arah arus. Variabel pendukung meliputi data arah dan kecepatan arus dan peta bathimetri wilayah Perairan Porong. Data yang diperoleh selanjutnya dianalisis menggunakan program arc GIS 10, sehingga menghasilkan output berupa distribusi spasial. Hasil penelitian menunjukkan bahwa untuk parameter suhu mempunyai nilai sebaran berkisar 22-22,9 ⁰C. Parameter konsentrasi kekeruhan memiliki nilai sebaran berkisar 3,6-20,5 NTU, salinitas memiliki nilai sebaran berkisar 20-20,9 ppm, pH memiliki nilai sebaran berkisar 7-7,91 dan DO memiliki nilai sebaran 5-6,1 mg/l. Sebaran parameter fisika kimia perairan adalah menuju ke laut dengan arah ke Timur, dengan nilai konsentrasi yang berbeda antara satu parameter dengan parameter lainnya. Sebaran antar stasiun untuk konsentrasi DO semakin menjauhi muara memiliki nilai yang relatif tinggi, sedangkan sebaran antar stasiun untuk konsentrasi kekeruhan semakin menjauhi muara memiliki nilai konsentrasi yang menurun. Pola sebaran konsentrasi parameter suhu, salinitas, dan pH pada lokasi stasiun penelitian relatif sama

N=2 supersymmetric AdS_4 solutions of M-theory

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Four-Dimensional SCFTs from M5-Branes

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Flavour in supersymmetry: horizontal symmetries or wave function renormalisation

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Holographic Vitrification

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