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Kerang Bulu (Anadara Inflata) Sebagai Bioindikator Pencemaran Logam Berat Timbal (Pb) Dan Cadmium (Cd) Di Muara Sungai Asahan
| Content Provider | Semantic Scholar |
|---|---|
| Author | Ernawati |
| Copyright Year | 2011 |
| Abstract | COCKLE SHELL (ANADARA INFLATE) AS BIO-INDICATOR IN POLLUTED HEAVY METAL (PB) AND CADMIUM (CD) ON MOUTH RIVER OFASAHAN The Asahan river’s mouth is an area got directly influence in massive flowing of water from Asahan River sourced from Danau Toba and Malacca Strait’s sea waters. Variously activities of community on that waters can influence the quality of waters including its heavy metal. The objective of this study is to know the content of heavy metal Pb and Cd on the flesh of cockle shell (Anadara inflate), water and sediment. This study was conducted on August 2009 on Asahan River’s mouth. The survey was done on 3 stations with 3 repetitions of each. Station I located on the end of mouth, station II 4 miles seashore, and station III of 5 miles seashore. The method used in taking the sample known as purposive random sampling. To analyze the content of its heavy metal (Pb) and Cadmium (Cd) was completed on Laboratory of Bapedalda Sumatera Utara adopting the Atomic Absorption Spectrophotometer type Shimadzu, series AA.6200 with detection limit Cd ≥ 0.004 ppm, Pb ≥ 0.01 ppm. The assessment to the content of heavy metal Pb on flesh of cockle shell (Anadara inflate) resulted average 0.0021-0.0187 ppm, content of heavy metal Cd on the flesh is average 0.0049-0.0146 ppm. The concentrated rate of heavy metal Pb and Cd the flesh do not exceed yet limit of quality standard as defined by government decree Dirjen POM No.03725/B/SK/VII/1989 with 2 ppm Pb and 0.2 ppm Cd. The concentrated rate Pb within water body average 0.0027-0.0065 ppm, the content CD within water body average 0.0076-0.0264 ppm. The concentrated rate of heavy metal Pb within water body do not exceed limit of quality standard on sea water for marine biota as defined by government decree Kep.Men LH No.51/2004 of 0.008 ppm Pb and 0.001 ppm Cd. The concentrated rate of Pb on sediment average 0.0403-0.0569 ppm whereas the concentrated rate of Cd metal on sediment average of 0.0120-0.0384 ppm. The concentrated rate of content heavy metal Pb and Cd in sediment is still underestimate as has been recommended by Reseau National d’Observation (RNO, 1981 in Ahmad, 2009) of 10-70 ppm Pb and 0.1-2 ppm Cd. ]keywords : cockle shell, bio-indicator, heavy metal. Universitas Sumatera Utara |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://repository.usu.ac.id/bitstream/handle/123456789/26779/Cover.pdf?isAllowed=y&sequence=7 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
