Abstract
Disposal of Lapindo mud into Porong river had caused environmental polluted which might affect water quality and surrounding especially ponds in Jabon Subdistrict, Sidoarjo city. One of hazardous contaminant that harmful to health was chromium (Cr) metal which had carcinogenic effect. The aim of this study was analyzed Cr levels in ponds water, Nile tilapia (Oreochromis niloticus) flesh, Milkfish (Chanos chanos) flesh, Vaname shrimp (Litopenaeus vannamei) flesh, and analyzed the correlation of Cr levels ponds water to Cr levels of Nile tilapia, milkfish, Vaname shrimp. Results of study shown that Cr levels of all ponds water sample were <0,0201mg/L which indicated safe to consumed because they were lower than standard of water Cr levels about <0,05 mg/L. Result of Cr levels in Nile tilapia flesh and Milkfish flesh had same Cr levels about <0,0004 mg/kg which indicated safe to consumed because they were lower than standard of Cr levels fish flesh about <2,5 mg/kg. Shrimp flesh taken from T3 (0,532 mg/kg ) and T5 (0,461 mg/kg) were higher than standard of Cr levels shrimp flesh about 0,4 mg/kg hence need beware to consume. Correlation analyzed of ponds water Cr levels to Nile tilapia flesh, Milkfish flesh, Vaname shrimp flesh Cr levels shown those were not correlation between both of them because P >0,05.
Highlights
Results of study shown that Cr levels of all ponds water sample were
Result of Cr levels in Nile tilapia flesh and Milkfish flesh had same Cr levels about
Shrimp flesh taken from T3 (0,532 mg/kg ) and T5 (0,461 mg/kg) were higher than standard of Cr levels shrimp flesh about 0,4 mg/kg need beware to consume
Summary
Air memiliki peran dalam berbagai sektor kehidupan. Air yang layak konsumsi memiliki ciri tidak berwarna, tidak berbau, tidak berasa dan tidak ada endapan padat terlarut. Logam berat yang berbahaya bagi kesehatan jika terkandung dalam air diantaranya Cr. Akibat dampak buruk yang diakibatkan oleh kromium maka pemerintah mengeluarkan PP No 82 tahun 2001 mengenai kadar maksimum kromium untuk keperluan air baku dan kegiatan perikanan sebesar 0,05 mg/L. Kecamatan Jabon memiliki lokasi yang dekat dengan lumpur Lapindo, bahkan pengairan untuk tambak dikawasan ini banyak yang bersumber dari aliran sungai Porong, sehingga ada kemungkinan jika air sungai Porong yang tercemar akan mempengaruhi kualitas air tambak dan terkontaminasi logam berat seperti Cr pada ikan dan udang di lokasi tambak tersebut. Dalam penelitian ini dilakukan analisa kadar Cr pada air tambak, ikan Bandeng, ikan Nila, udang Vaname di Kecamatan Jabon untuk mengetahui tingkat pencemaran air akibat Cr yang terlarut dalam air, serta menganalisis hubungan kadar Cr dalam air tambak terhadap kadar Cr dalam daging ikan dan udang
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