scholarly journals HEAVY METALS CONCENTRATIONS IN WATER, SEDIMENT AND BIOTA IN KELABAT BAY, BANGKA ISLAND

Author(s):  
Zainal Arifin

Kelabat Bay is a semi enclosed waters divided into two parts, i.e., outer part of Klabat bay facing the Natuna Sea (T Luar) and inner Kelabat bay surrounded by human activities and five river mouths (T Dalam). Study on metal concentrations on sediments and biota was carried out in March and July 2006. Water and sediment samples as well as biota were analyzed using Flame-Atomic Absorption Spectrophotmetry (Flame AAS). The result showed that concentrations of the dissolved heavy metals were generally low with ranged as follows, Pb(1,0 – 26,0 μg L-1), Cd(<0,1– 3,0 μg L-1 ), Cu(1–2,0 μg L-1) dan Zn(1,0–4,0 μg L-1). An average of metal concentrations in sediments were as follows, Pb (11,46 mg kg-1), Cd (0,10 mg kg-1), Cu (2,50 mg kg-1) and Zn(13,64 mg kg-1). Average concentrations of Pb, Cu dan Zn in T Dalam was about double compared to that of sediments of T Luar. However, no significant different was observed between west and south-east monsoon. In contrast, concentrations of Cd in sediment was similar throughout Kelabat bay and influenced by seasons. Accumulation of metals by fishes were mostly lower compared to that of shellfishes. The snail Strombus canarium accumulated the highest of Pb and Cu, cockle Anadara sp was for Cd and Zn.Keywords: heavy metals, water, sediment, biota, temporal variation, Kelabat Bay

2011 ◽  
Vol 3 (1) ◽  
Author(s):  
Zainal Arifin

Kelabat Bay is a semi enclosed waters divided into two parts, i.e., outer part of Klabat bay facing the Natuna Sea (T Luar) and inner Kelabat bay surrounded by human activities and five river mouths (T Dalam). Study on metal concentrations on sediments and biota was carried out in March and July 2006. Water and sediment samples as well as biota were analyzed using Flame-Atomic Absorption Spectrophotmetry (Flame AAS). The result showed that concentrations of the dissolved heavy metals were generally low with ranged as follows, Pb(1,0 – 26,0 μg L-1), Cd(&lt;0,1– 3,0 μg L-1 ), Cu(1–2,0 μg L-1) dan Zn(1,0–4,0 μg L-1). An average of metal concentrations in sediments were as follows, Pb (11,46 mg kg-1), Cd (0,10 mg kg-1), Cu (2,50 mg kg-1) and Zn(13,64 mg kg-1). Average concentrations of Pb, Cu dan Zn in T Dalam was about double compared to that of sediments of T Luar. However, no significant different was observed between west and south-east monsoon. In contrast, concentrations of Cd in sediment was similar throughout Kelabat bay and influenced by seasons. Accumulation of metals by fishes were mostly lower compared to that of shellfishes. The snail Strombus canarium accumulated the highest of Pb and Cu, cockle Anadara sp was for Cd and Zn.<br />Keywords: heavy metals, water, sediment, biota, temporal variation, Kelabat Bay


2015 ◽  
Vol 6 (2) ◽  
Author(s):  
Sophia L Sagala ◽  
Rikha Bramawanto ◽  
Anastasia R.T.D Kuswardani ◽  
Widodo S Pranowo

ABSTRACTThe study of Pb, Cd, Cu, Hg, and As and Fe in Natuna coastal waters, Riau Islands was conducted in November 2012. Water and sediment samples were collected from 35 stations by purposive sampling method and those heavy metals were analysed using Atomic Absorption Spectrophotometer, flame type (FAAS). The results showed that concentrations of total Pb, Cd, Cu, Hg, and As in surface water were below instrument detection limit (2 µg/L for Pb, Cd, and Cu; 0.02 µg/L for Hg and As). Moreover, the concentration of metal Fe in surface water was 0.021-0.054 mg/L. Concentrations of Pb and Cu in sediment were 0.05-22.67 mg/kg and 3.77-11.00 mg/kg, respectively, at which the highest concentrations were found near Binjai Estuary. Those concentrations were significantly below the standard levels set by CCME (2002) and ANZECC/ARMCANZ (2000). Concentration of Fe in sediment varied from 751.13-2309.12 mg/kg and showed similar spatial distribution to Cu-in-sediment. No standard level for Fe in waters was available. Generally, it can be concluded that Natuna coastal water was still uncontaminated.  Keywords: heavy metals, iron metal, Natuna coastal waters.


2019 ◽  
Vol 22 (2) ◽  
pp. 109
Author(s):  
Derra Alianie Tawa ◽  
Budi Afriyansyah ◽  
Muhammad Ihsan ◽  
Mohammad Agung Nugraha

Illegal tin mining or unconventional mining activities produce tailings. Tailings contain dangerous heavy metals one of which is Lead (Pb). The increasing concentration of Pb in the waters will also increase its concentration in the body of the biota, one of which is shrimp. The purpose of this study was to analyse the Pb content in gills, hepatopancreas and muscle in Penaeus merguiensis, analyse the Pb content in water and sediments, measure the ability of Penaeus merguiensis in accumulating Pb in water and sediments, and determine the safe limit for consumption. Shrimp, water and sediment samples were analysed using AAS. The results showed that the highest Pb concentration in Penaeus merguiensis was hepatopancreas> gill> meat, with an average range of 0,1897–0,4064 mg/kg, gills 0,2424-0,4770 mg/kg, and meat 0,1348-0,1636 mg/kg. The average Pb concentration in water ranged from 0,2624 to 0,5713 mg/L, while the sediment ranged from 0,2783 to 0,9760 mg/kg. The ability of Penaeus merguensis to accumulate Pb included in the low category. The value of daily intake is around 9,760-11,128 kg/week. Aktivitas penambangan timah illegal atau tambang inkonvensional menghasilkan sisa limbah buangan (Tailing). Tailing mengandung logam berat berbahaya salah satunya Timbal (Pb). Meningkatnya konsentrasi Pb di perairan akan meningkat pula konsentrasinya dalam tubuh biota, salah satunya udang. Tujuan dilakukannya penelitian ini adalah menganalisis kandungan Pb pada insang, hepatopankreas dan daging pada Penaeus merguiensis, menganalisis kandungan Pb pada air dan sedimen, mengukur kemampuan Penaeus merguiensis dalam mengakumulasikan Pb di air dan sedimen, dan menentukan nilai batas aman konsumsi. Sampel udang, air dan sedimen dianalisis menggunakan AAS. Hasil penelitian menunjukkan bahwa konsentrasi Pb tertinggi pada Penaeus merguiensis adalah hepatopankreas>insang>daging, dengan kisaran rata-rata 0,1897–0,4064 mg/kg, insang 0,2424-0,4770 mg/kg, dan daging 0,1348-0,1636 mg/kg. Konsentrasi Pb rata-rata dalam air berkisar antara 0,2624-0,5713 mg/L, sementara sedimen berkisar dari 0,2783-0,9760 mg/kg. Kemampuan Penaeus merguensis untuk mengakumulasi Pb termasuk dalam kategori rendah. Nilai asupan harian sekitar 9,760-11,128 kg/minggu.


Author(s):  
Astom Mondal ◽  
Sankar Narayan Sinha

The country of India is the unique where different cultural heritage as well as festivals were found. Mainly the West Bengal state is known as various religious festivals, but Durga Puja is one of the biggest and end of this festival idol are immersed in the water bodies. Sainthia town found in the district of Birbhun, West Bengal, India which is present in the south bank of the Mayurakshi river. The idol immersion mainly effect on water as well as sediment quality of this river Mayurakshi near railway bridge at Sainthia. The study will be discussed for immersion effect of this sampling station, because in this point totally Sainthia town Durga idols were immersed. The water and sediment samples were collected at 7:30 am on 9th October 2019 during pre-immersion (before immersion) and 7:30am on 10th October 2019 during the post immersion (after immersion) in this time of periods. Mainly, the Durga idols are been made up by non-biodegrable substances such as clay, plaster of paris, cloths, paper woods, thermocols, jutes and synthetic paints etc. these are mainly toxic substances. Over all the used materials in making of idol, the thermocol is nonbiodegradable while paints contained highly toxic heavy metals like Cr, Cd and Pb. In this study has been made to analysis the physicochemical parameters like temperature, pH, TS, TDS, TSS, EC and three heavy metals like Cr, Cd and Pb on the collected water and sediment samples of the Mayurakshi river on before and after idol immersion periods of near railway bridge sampling station. The analysed results by based on various physicochemical parameters showed that the after immersion in the river Mayurakshi increases concentration of heavy metals and changes other physicochemical parameters of the both water and sediment samples. Finally concluded that, these changes of different parameters are harmful for aquatic life and human beings as well as the level of water pollution highly increases in this Mayurakshi river. So, the huge religious activities mainly causes of the water pollution where huge disturbing aquatic ecosystem.


2018 ◽  
Vol 54 (2A) ◽  
pp. 293
Author(s):  
Van Dieu Anh

Cau River, one of the major rivers of Thai Binh River Systems, has been under pressure from discharge from the economic and social development activities of the region. Water and sediment samples will be collected along Cau River to determine the spatial variability of metal in Cau River. Sediments collected from Cau River were extracted sequentially to investigate the distribution and fractionation of metal in Cau River. Results showed that the presence of certain metals in water and sediment with the concentrations ranged in a wide variation. In water Cu (58-181 μg/L), Pb (0.6-1.85 μg/L), Zn (18.1-32.5 μg/L), Cd (0-0.02 μg/L), Ni (3.04-4.41 μg/L), Cr (2.72-5.07 μg/L); in sediment Cu (27.6-401 mg/kg), Pb (0-282 mg/kg), Zn (3.9-71.9 mg/kg), Cd (0.01-2.44 mg/kg), Ni (2.24-5.89 mg/kg), Cr (4.08-11.5 mg/kg). Sequential extraction for study the distribution of metal species in sediment showed that metal mainly concentrated immobile form of residues fraction, organic compound bound fraction and Fe-Mn oxide associated fraction. This dominant existence of metal result in the tendency of metal assimilation in sediment and low bioavailability. However, some toxic metals such as Cd, Cr found moderated soluble form must be studied more for their release to water phase and and bioaccumulation.


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