Suseptibilitas Magnetik Pada Tanah Di Sekitar Tempat Pemrosesan Akhir Sampah (TPAS) Regional Payakumbuh Sebagai Indikator Polusi Logam Berat
DOI:
https://doi.org/10.25077/jfu.13.2.303-309.2024Keywords:
logam berat, sampah, suseptibilitas magnetik, tanah lapisan atasAbstract
Pengukuran nilai suseptibilitas magnetik dan kandungan logam berat pada tanah lapisan atas di sekitar TPAS Regional Payakumbuh yang dibagi menjadi tiga zona penelitian telah dilakukan. Terdapat 91 sampel tanah lapisan atas yang diambil pada kedalaman 25 cm pada zona TPAS, penduduk dan perkebunan. Hasil pengukuran suseptibilitas magnetik menunjukkan nilai dengan rentang 11,27×10-8 m3/kg hingga 1017,10×10-8 m3/kg. Daerah penelitian telah mengalami pencemaran dari kategori tercemar rendah hingga tercemar sangat tinggi dilihat dari nilai suseptibilitas magnetik yang didapatkan. Rata-rata tertinggi dari nilai suseptibilitas magnetik berada pada zona penduduk 758,64×10-8 m3/kg yang diperkirakan paling tercemar oleh kandungan logam berat. Sementara, zona pertanian memiliki nilai rata-rata terendah 373,37×10-8 m3/kg yang diperkirakan pencemaran oleh logam berat tidak begitu tinggi. Menggunakan alat X-Ray Fluorescence diukur kandungan logam berat pada enam sampel tanah. Logam berat pada ketiga zona penelitian terdiri dari Fe, Pb, Zn, Cu dan As sudah melewati ambang batas pada semua uji sampel. Perbandingan kenaikan persentase unsur logam di Zona TPAS menunjukkan logam berat didominasi oleh Fe, Mn, Zn dan Cu. Pada zona penduduk didominasi oleh logam berat Fe, Pb, Cu dan Pb. Sementara zona perkebunan didominasi oleh logam berat Fe, Cu dan As.References
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