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PENCEMARAN TANAH — LOGAM BERAT


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PENCEMARAN TANAH  –  LOGAM BERAT

 

The pencemaran tanah dengan logam berat di wilayah tertentu adalah konsekuensi dari industri pertambangan dan pengolahan bijih mineral logam. Sumber utama pencemaran tanah oleh logam berat adalah kegiatan industri, karena debu yang dilepaskan ke atmosfer, debu yang mencemari tanah dan vegetasi. Konsentrasi tertinggi logam berat dalam tanah yang dekat dengan lokasi industri.  Polusi tanah ini sangat kompleks dan mempengaruhi aktivitas biocenosis dari tanah, pengembangan tanaman dan kualitas fisik-kimia tanah.
Pencucian atmosfer dari logam berat setelah hujan menentukan keasaman tanah melalui pengendapan asam yang melimpah di daerah ini karena pencemaran dengan SO2 dan logam berat.

Tingginya kandungan logam berat dalam tanah menentukan pergerakannya dalam vegetasi dan dalam rantai makanan, ini  merupakan faktor risiko untuk hewan dan kesehatan manusia. Ada upaya untuk membatasi masukan logam berat dalam tanah dan untuk menghindari pengayaan dalam rantai makanan. Akumulasi logam berat ini dalam rantai makanan memiliki implikasi penting pada paparan manusia.

 

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