IDENTIFIKASI SEBARAN LOGAM BERAT PADA TANAH LAPISAN ATAS DAN HUBUNGANNYA DENGAN SUSEPTIBILITAS MAGNETIK DI BEBERAPA RUAS JALAN DISEKITAR PELABUHAN TELUK BAYUR PADANG
DOI:
https://doi.org/10.25077/jfu.3.4.198-204.2014Abstract
ABSTRAK
Telah dilakukan penelitian untuk menentukan kandungan logam berat dan suseptibilitas magnetik serta hubungan keduannya pada tanah lapisan atas di tiga ruas jalan menuju Pelabuhan Teluk Bayur Padang. Pengambilan sampel dilakukan pada bulan Desember 2013 di Jalan Sutan Syahrir, Jalan By Pass dan Jalan Bungus. Sampel yang diambil berupa tanah bagian atas pada kedalaman 10 cm sebanyak lebih kurang 50 g pada tiap-tiap titik lokasi pengambilan. Sampel diambil mulai dari Pelabuhan Teluk Bayur Padang kemudian menyebar ke tiga ruas jalan dengan rentang masing-masing 5 km dengan jarak antar sampel 0,5 km. Hasil penelitian menunjukkan nilai suseptibilitas magnetik tanah lapisan atas di lokasi penelitian berkisar antara 878,9 sampai dengan 6694,2 x 10-5 m3kg-1 dengan rata-rata keseluruhan sebesar 3415,9 x 10-5 m3kg-1. Nilai suseptibilitas yang lebih dari 1000 x 10-5 m3kg-1 termasuk kategori pencemar tinggi. Hal ini dapat juga dilihat dari konsentrasi logam berat (Pb, Cu, Cd) dimana nilainya di atas nilai baku mutu, sedangkan konsentrasi Zn adalah 6,8 ppm yang masih di bawah nilai baku mutu yaitu 50 ppm. Konsentrasi logam berat menunjukkan adanya hubungan dengan suseptibilitas, dengan koefisien korelasi 0,50 untuk Pb, 0,31 untuk Cu, 0,12 untuk Cd dan 0,17 untuk Zn. Hal ini memberi harapan bahwa suseptibilitas magnetik dapat digunakan sebagai indikator penyebaran logam berat pada tanah lapisan atas akibat polusi kendaraan bermotor.
Kata kunci: suseptibilitas magnetik, logam berat, tanah lapisan atas.
ABSTRACT
The heavy metal content and magnetic susceptibility and their relations to top soil in three road sides around Teluk Bayur harbor, Padang have been investigated. The samples were taken on December 2013 at Jalan Sutan Syahrir, Jalan By Pass and Jalan Bungus. 50 g of samples were taken in the depth of 10 cm where the distance between two consecutive sample points is 0.5 km. The result shows that magnetic susceptibility of top soil range from 878.9 to 6694.2 x 10-5 m3kg-1, with the average of 3415.9 x 10-5 m3kg-1. The top soil in this research has been polluted by Pb, Cu and Cd, where their concentration is higher than natural value, that is 15.6 ppm for Pb, 20.6 ppm for Cu, 10.7 ppm for Cd, while Zn concentration of 6.8 ppm is still below its natural value. The concentration of heavy metals in top soil has the same trend with its magnetic susceptibility, with correlation coefficient is 0.5 for Pb, 0.31 for Cu, 0.12 for Cd, and 0.17 for Zn. It means that magnetic susceptibility can be used as indicator of heavy metal contamination in the top soil.
Keyword: magnetic susceptibility, heavy metal, top soil.
Downloads
Published
Issue
Section
License
Copyright (c) 2024 Ulfa Yulius, Afdal Afdal
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Please find the rights and licenses in JFU (Jurnal Fisika Unand).
1. License
The non-commercial use of the article will be governed by the Creative Commons Attribution license as currently displayed on Creative Commons Attribution-NonCommercial 4.0 International License.
2. Authors Warranties
The author warrants that the article is original, written by stated author(s), has not been published before, contains no unlawful statements, does not infringe the rights of others, is subject to copyright that is vested exclusively in the author and free of any third party rights, and that any necessary written permissions to quote from other sources have been obtained by the author(s).
3. User Rights
JFU's spirit is to disseminate articles published are as free as possible. Under the Creative Commons license, JFU permits users to copy, distribute, display, and perform the work for non-commercial purposes only. Users will also need to attribute authors and JFU on distributing works in the journal.
4. Rights of Authors
Authors retain the following rights:
- Copyright, and other proprietary rights relating to the article, such as patent rights,
- The right to use the substance of the article in future own works, including lectures and books,
- The right to reproduce the article for own purposes, provided the copies are not offered for sale,
- The right to self-archive the article.
5. Co-Authorship
If the article was jointly prepared by other authors, the signatory of this form warrants that he/she has been authorized by all co-authors to sign this agreement on their behalf, and agrees to inform his/her co-authors of the terms of this agreement.
6. Termination
This agreement can be terminated by the author or JFU upon two months notice where the other party has materially breached this agreement and failed to remedy such breach within a month of being given the terminating partys notice requesting such breach to be remedied. No breach or violation of this agreement will cause this agreement or any license granted in it to terminate automatically or affect the definition of JFU.
7. Royalties
This agreement entitles the author to no royalties or other fees. To such extent as legally permissible, the author waives his or her right to collect royalties relative to the article in respect of any use of the article by JFU or its sublicensee.
8. Miscellaneous
JFU will publish the article (or have it published) in the journal if the articles editorial process is successfully completed and JFU or its sublicensee has become obligated to have the article published. JFU may conform the article to a style of punctuation, spelling, capitalization, referencing and usage that it deems appropriate. The author acknowledges that the article may be published so that it will be publicly accessible and such access will be free of charge for the readers.
