Identifikasi Pencemaran Air Sungai Batang Ombilin dari Nilai Total Disolved Solid, Konduktivitas Listrik dan Kandungan Logam Berat

Authors

  • Yusrina Meydiyati Laboratorium Fisika Material, Jurusan Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Andalas
  • Dwi Puryanti Laboratorium Fisika Material, Jurusan Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Andalas
  • Arif Budiman Laboratorium Fisika Bumi, Jurusan Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Andalas

DOI:

https://doi.org/10.25077/jfu.7.3.202-207.2018

Abstract

Penelitian identifikasi pencemaran air Sungai Batang Ombilin di Kecamatan Talawi Kota Sawahlunto telah dilakukan. Pengambilan sampel dilakukan pada delapan lokasi dengan jarak antara lokasi adalah 500 m. Pada setiap lokasi diambil sampel pada tiga titik, yaitu dua di pinggir sungai dan satu di tengah sungai. Identifikasi dilakukan berdasarkan parameter nilai Total Disolved Solid (TDS), konduktivitas listrik, temperatur, derajat keasaman (pH) dan kandungan logam berat Pb, Cu dan Cr. Hasil penelitian menunjukkan bahwa nilai rata-rata temperatur air Sungai Batang Ombilin adalah 29,0˚C pada musim penghujan. Nilai ini lebih tinggi dari temperatur udara di sekitarnya yaitu 28,0˚C. Hal ini mengindikasikan bahwa air Sungai Batang Ombilin sudah mulai mengalami pencemaran. Nilai rata-rata pH sampel adalah 7,39. Nilai rata-rata TDS sampel adalah 65,17 mg/L. Nilai rata-rata konduktivitas listrik sampel adalah 114,4 μS/cm. Konsentrasi tertinggi kandungan logam berat Pb, Cu dan Cr berturutturut adalah 0,142 mg/L, 0,009 mg/L dan 0,060 mg/L. Berdasarkan parameter tersebut dapat dikatakan bahwa air Sungai Batang Ombilin di Kecamatan Talawi Kota Sawahlunto tercemar karena nilai-nilai parameter tersebut berada di atas nilai standar baku mutu air sungai kelas II menurut Peraturan Pemerintah Nomor 82 Tahun 2001.

Kata kunci: kandungan logam berat, konduktivitas listrik, pH, TDS, temp

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Published

2018-07-02

How to Cite

Meydiyati, Y., Puryanti, D., & Budiman, A. (2018). Identifikasi Pencemaran Air Sungai Batang Ombilin dari Nilai Total Disolved Solid, Konduktivitas Listrik dan Kandungan Logam Berat. Jurnal Fisika Unand, 7(3), 202–207. https://doi.org/10.25077/jfu.7.3.202-207.2018

Issue

Vol. 7 No. 3 (2018)

Section

Articles

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Copyright (c) 2018 Yusrina Meydiyati, Dwi Puryanti, Arif Budiman

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