AbstrakPerairan Teluk Jakarta tercemar logam berat, sehingga perairan Kepulauan Seribu juga berpotensi untuk tercemar logam berat. Penelitian ini bertujuan untuk mengetahui kondisi kualitas air di Pulau Panggang dan Pulau Karya, menganalisis kontaminasi logam berat pada air, sedimen dan kerang kapak-kapak serta menganalisis korelasi logam berat antar ketiganya. Penelitian ini meliputi pengukuran pH, suhu, oksigen terlarut/DO, BOD, salinitas, kekeruhan dan logam berat (Cd dan Pb) pada air, sedimen dan kerang kapakkapak di perairan Pulau Panggang dan Pulau Karya. Data yang diperoleh selanjutnya dibandingkan dengan baku mutu. Kualitas air di Pulau Panggang dan Pulau Karya dilihat dari pH, salinitas dan temperatur air cenderung menuju ke kurang baik. Kontaminasi Cd dan Pb pada air pada April dan Juli, berada di bawah baku mutu Kepmen LH No.51 th 2004, namun pada Oktober di kedua tempat tersebut, Cd dan Pb melebihi baku mutu yg ditetapkan. Kontaminasi Cd dan Pb pada sedimen di kedua pulau tersebut masih berada dibawah baku mutu RNO (1981), namun Cd dalam sedimen di Pulau Karya pada Juli dan Oktober berada diatas baku mutunya. Cd dan Pb pada kapak-kapak masih berada di bawah baku mutu Ditjen POM RI No. 03725 (1989). Korelasi Cd dan Pb antara air dan sedimen positif. Korelasi Cd dan Pb antara air dan kerang paling kuat dibanding korelasi logam berat pada air dan sedimen, namun keeratan hubungan kadmium lebih tinggi dibanding timbal.Kata kunci: Cd, kapak-kapak, Kepulauan Seribu, kontaminasi, korelasi, Pb Abstract Jakarta Bay waters contaminated with heavy metals, so that the waters of the Thousand Islands are also potentially contaminated with heavy metals. The purpose of this study were to determine the condition of the water quality on the Panggang Island and Karya Island, analyze contamination of heavy metals (Cadmium and Lead) in water, sediments and Prickly Pen Shell and then the correlation. Based on Ministry of Environment decree No. 51/2004, water quality in the Panggang Island and Karya Island tend toward to low category. Cadmium and lead concentration in the water on October exceed the quality standards. In the sediment on July and October at Karya Island, concentration of cadmium were exceed the quality standar by RNO. On the other hand, cadmium and lead concentration on Prickly Pen Shell still below standard quality from decree of Director General of POM RI No. 03725. We found highest positive correlation were found between cadmium and lead accumulation in the water and on the Prickly Pen Shell, then positive correlation between cadmium and lead in the water and in the sediment. For the heavy metal contamination, we found contamination of cadmium correlation were higher than lead contamination.

Seribu Islands located in the north of Jakarta Bay; it is potentially polluted by heavy metal such as Cd and Pb. The aims of this study is to prove contamination presumption, by analyzing and determine correlation Cd and Pb concentration in the sediment RNO (1981), EPA (1999) and IACD/CEDA (1997). Gills, viscera Keywords: contamination, Cd, farming, milkfish, Pb, Seribu Islands ABSTRAKKepulauan Seribu berada satu hamparan dengan Teluk Jakarta yang tercemar logam berat, sehingga berpotensi untuk tercemar logam berat seperti Cd dan Pb. Tujuan penelitian untuk membuktikan dugaan pencemaran tersebut, dengan cara menganalisis kualitas air, kontaminasi logam berat Cd dan Pb pada ikan bandeng Chanos chanos budidaya, dan melihat hubungannya dengan sedimen dan air. Pada penelitian ini dilakukan pengukuran kualitas air (pH, suhu, oksigen terlarut/DO, salinitas), serta kontaminasi logam berat (Cd dan Pb) pada air, sedimen dan pada ikan bandeng budidaya di perairan Kepulauan Seribu. Data yang diperoleh dibandingkan dengan baku mutu dan dibuat korelasi antara logam berat pada air dan sedimen, air dan organ tubuh serta antara sedimen dan organ tubuh. Kualitas air laut Kepulauan Seribu cukup mendukung kehidupan bandeng. Kontaminasi Cd dan Pb pada air pada April dan Juli, berada di bawah baku mutu Kepmen LH No.51 th 2004, namun pada Oktober melebihi baku mutu yg ditetapkan. Kontaminasi Cd dan Pb pada sedimen dibawah baku mutu RNO (1981), EPA (1999) dan ANZECC (2000. Insang, isi perut (jeroan) dan daging ikan bandeng sudah terkontaminasi Cd dan Pb, namun masih berada di bawah baku mutu Dirjen POM RI No 03725 (1989), sehingga masih aman dikonsumsi. Korelasi Cd dan Pb antara air dan sedimen hubungannya positif. Korelasi Cd jauh lebih tinggi dibanding Pb. Korelasi Cd antara air laut dan jeroan ikan serta antara sedimen dan jeroan, paling erat dibanding organ lainnya.

Seribu Islands located in the north of Jakarta Bay; it is potentially polluted by heavy metal such as Cd and Pb. The aims of this study is to prove contamination presumption, by analyzing and determine correlation Cd and Pb concentration in the sediment, in the water and on milkfish Chanos chanos cultured in this area. On this study, we collected water quality data (pH, temperature, dissolve oxygen and salinity) and heavy metals contamination (Cd and Pb) in the sediment, in the water and on milkfish.  We compare collected data with quality standar and correlate heavy metal concentration between in the water and in the sediment; in the water and on milkfish organ; and, in the sediment and on milkfish organ.  In general, water quality is sufficient enough to support the life of farmed milkfish. Cd and Pb contamination level in the water lied below the quality standard of Ministry of Environment decree No. 51/2004 in the last April and July. However, the contamination exceeds the standard in the last October. The contamination in sediment lied below RNO (1981), EPA (1999) and IACD/CEDA (1997). Gills, viscera and the meat of the milkfish are contaminated with Cd and Pb, yet, still lied below the quality standard of Ministry of Environment Decree No. 51/2004. The results showed that farmed milkfish in Thousand Islands are safe to eat. We also found that the correlation of Cd and Pb contamination between water and sediment is positive. The correlation of Cd is much higher than Pb. The correlation of Cd between water and viscera as well as between sediment and viscera are the most closely related than any other organ.  Keywords: contamination, Cd, farming, milkfish, Pb, Seribu Islands