Mercury (Hg) contamination in Manado Bay, North Sulawesi, Indonesia
DOI:
https://doi.org/10.35800/jasm.7.1.2019.24993Keywords:
mercury, Hg, fish, sediment, Manado BayAbstract
Title (Bahasa Indonesia):Kontaminasi merkuri (Hg) di Teluk Manado, Sulawesi Utara, Indonesia
Artisanal gold minings, which are situated in the highlands of the northern part of Sulawesi Island,use mercury (Hg) to extract gold and dischargetheirs tailings into rivers; one of the rivers(Bailang River) is connected to Manado Bay. This could cause Hg contamination into the bay. This study aimed to assess the contamination of Hg in the aquatic ecosystem of the bay. For the assessment, the bay was divided into 2 parts, namely the North and the South, and the contamination was assessed by measuring the total Hg concentration in sediments and fishes. Determination of Hg concentration refers to the Indonesian National Standard (SNI) 01-2896-1992 and Guidance of Balai Riset dan Standarisasi Industri Manado. The results showed that the range of Hg concentrations in fish varied by species; in the northern part of the bay: Holocentridae (0.1144-0.1151 ppm), Siganidae (0.0020-0.0034 ppm), Apogonidae (0.0461-0.050 ppm), and Nemipterus (0.0142-0.0144 ppm ). While in the southern part of the bay: Holocentridae (0.1090-0.1104 ppm), Siganidae (0.160-0.164 ppm), Apogonidae (0.1280-0.1291 ppm), Nemipterus (0.0522-0.0530 ppm) , and Priacanthus sp. (0.0194-0.0210 ppm). The average concentration of Hg in sediments of the bay around river mouths varied based on location, i.e. Bailang River was 0.0502 ppm, Sario River was 0.0270 ppm, Bahu River was 0.0615 ppm, and Malalayang River was 0.0143 ppm.
Pertambangan emas rakyat menggunakan merkuri (Hg), yang berada di daerah dataran tinggi bagian Utara Pulau Sulawesi, membuang limbah tailing ke sungai menuju ke laut; satu dari sungai tersebut (Sungai Bailang) bermuara ke Teluk Manado. Hal ini dapat menyebabkan kontaminasi Hg ke lingkungan perairan teluk. Penelitian ini bertujuan untuk menilai kontaminasi Hg di ekosistem perairan teluk tersebut. Untuk penilaian, perairan teluk dibagi 2 bagian, yaitu bagian Utara dan Selatan, dan kontaminasi dinilai dengan cara mengukur konsentrasi Hg total pada sedimen dan ikan. Penentuan konsentrasi Hg mengacu Standar Nasional Indonesia (SNI) 01-2896-1992 dan Panduan Balai Riset dan Standarisasi Industri Manado. Hasil penelitian menunjukkan, bahwa kisaran konsentrasi Hg dalam ikan bervariasi berdasarkan jenis; dibagian Utara teluk: Holocentridae(0,1144-0,1151 ppm), Siganidae (0,0020-0,0034 ppm), Apogonidae (0,0461-0,050 ppm), dan Nemipterus (0,0142-0,0144 ppm).Sedangkandi perairan bagian Selatan teluk: Holocentridae (0,1090-0,1104 ppm), Siganidae (0,160-0,164 ppm), Apogonidae (0,1280-0,1291 ppm), Nemipterus (0,0522-0,0530 ppm),dan Priacanthus sp.(0,0194-0,0210 ppm). Konsentrasi rata-rata Hg di sedimen perairan teluk sekitar muara Sungai Bailang sebesar 0,0502 ppm, muara Sungai Sario sebesar 0,0270 ppm, muara Sungai Bahu sebesar 0,0615 ppm, dan muara Sungai Malalayang sebesar 0,0143 ppm.
References
AMIN, B., ISMAIL, A., ARSHAD, A., YAP, C.K. and KAMARUDIN, M.S. (2009) Anthropo-genic impacts on heavy metal concentrations in the coastal sediments of Dumai, Indonesia. Environ. Monit. Assess. 148, 291-305.
ANONYMOUS (2011) Metode Ekstrasi dan Destruksi Sampel. Manado: Baristand.
BERESWILL, R., GOLLA, B., STRELOKE, M. and SCHULZ, R. (2012) Entry and toxicity of organic pesticides and copper in vineyard streams: erosion rills jeopardize the effeciency of riparian buffer strips. Ecosystem and Environment, 146, 81-92.
BUDIONO, A. (2003) Pengaruh Pencemaran Merkuri Terhadap Biota Air. Bogor: Institut Pertanian Bogor.
CHEN, C.W., CHEN, C.F. and DONG, C.D. (2012) Contamination and potential ecological of mercury in sediments of Kaohsiung river mouth, Taiwan. International Journal of Envitonmental Science and Development, 3(1), 66-71.
KOCK-SCHULMEYER, M., GINEBREDA, A., GONZALES, S., CORTINA, J.L., DE ALDA, M.L. and BARCELO, D. (2012) Analysis of the occurrence and risk assessment of polar pesticides in the L lobregat River basin (NE Spain). Chemosphere, 86, 8-16.
KOMALIG, R., LASUT, M.T. and TANGKUMAN, H.D. (2010) Kontaminasi merkuri dalam sedimen di Sungai Talawaan. Chemistry Progress, 3(2), 81-84.
LASUT, M.T., EDINGER, E.N. and YASUDA, Y. (2005b). Contamination of mercury in marine
environment of Buyat Bay, North Sulawesi-Indonesia, and its potential impact to human. Proceedings of International Seminar on Mining, Environment, and Sustainability Development, 257-271.
LASUT, M.T., JENSEN, K.R., ARAI, T. and MIYAZAKI, N. (2005a) An assessment of water quality along the rivers loading to the Manado Bay, North Sulawesi, Indonesia. Coastal marine Science, 29(2), 124-132.
LASUT, M.T. 2009. Proses bioakumulasi dan biotransfer merkuri (Hg) pada organisme perairan di dalam wadah terkontrol. JMS (Jurnal Matematika & Sains), 14(3), 420-424.
LASUT, M.T., YASUDA, Y., EDINGER, E.N. and PANGEMANAN, J.M. (2010) Distribution and accumulation of mercury derived from gold mining in marine environment and its impact on residents of Buyat Bay, North Sulawesi, Indonesia. Water, Air, and Soil Pollution, 208, 153-164.
OUYANG, Y. (2012) Estimation of shallow groundwater discharge and nutrient load into a river. Ecological Engineering, 38, 101-104.
SUDARMADJI, MUKONO, J. and CORIE, I.P. (2006) Toksikologi logam berat B3 dan dampaknya terhadap kesehatan. Jurnal Kesehatan Lingkungan, 2(2), 129-142.
TRIYANI, A. (2009) Kandungan merkuri pada air dan akumulasinya pada daging ikan patik (Mystus micracanthus bleeker) di sungai sepauk Kalimantan Barat. Program Studi Biologi. Fakultas Teknobiologi. Yogyakarta: Universitas Atmajaya.
WHO (1990) Methylmercury. In Environmental Health Criteria 101. Geneva: World Health Organization.
IADC/CEDA (1997) Environmental aspects of dredging-conventions, codes and conditions: marine disposal. Netherlands: International Association of Dredging Companies (IADC) & Central Dredging Association (CEDA).
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