scholarly journals Assessment of some selected heavy metals in soot from the exhaust of heavy duty trucks and power generating plants in Nigeria by flame atomic absorption spectrophotometer

2011 ◽  
Vol 4 (4) ◽  
Author(s):  
E Okorie ◽  
C Olorunfemi ◽  
H Sule
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption ◽  
Atomic Absorption Spectrophotometer ◽  
Heavy Duty ◽  
Flame Atomic Absorption ◽  
Flame Atomic Absorption Spectrophotometer

scholarly journals Bioakumulasi Logam Berat Pb dan Cu terhadap Penaeus merguiensis di Perairan Teluk Kelabat Bagian Dalam

2019 ◽  
Vol 22 (1) ◽  
pp. 1
Author(s):  
Andini Komalasari ◽  
Budi Afriyansyah ◽  
Muhammad Ihsan ◽  
Mohammad Agung Nugraha
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption ◽  
Bioconcentration Factor ◽  
Sea Water ◽  
Average Concentration ◽  
Atomic Absorption Spectrophotometer ◽  
Average Ability ◽  
Flame Atomic Absorption ◽  
Flame Atomic Absorption Spectrophotometer ◽  
Penaeus Merguiensis

Bioaccumulation of Pb and Cu Heavy Metals to Penaeus merguiensis in the Waters of Inner Kelabat BayThe waters of Kelabat Bay has a wealth of marine resources that is quite important in supporting the economy of Bangka Regency and West Bangka Regency. The purpose of this research was to measure the concentration of heavy metals Pb and Cu (sea water, sediment, and Penaeus merguiensis) and measure the ability of Penaeus merguiensis in accumulating heavy metals Pb and Cu. Heavy metals Pb and Cu in Water, sediments and Penaeus merguiensis analyzed using Flame Atomic Absorption Spectrophotometer (Flame AAS). The results showed that concentration of heavy metals in water with an average range of Pb (0,1042-0,1748 mg/L) and Cu (0,000013-0,000021 mg/L). Average concentration of heavy metals in Pb sediments (7,15-7,73 mg/kg) and Cu (0,0016-0,00219 mg/kg ). Average concentration of Pb heavy metals in Penaeus merguiensis (1,34-1,54 mg/kg) and Cu (0,0003-0,00045 mg/kg). The average ability of Penaeus merguiensis in accumulating heavy metals Pb and Cu is 15,83 to water and 0,19 to sediment. The value of the Bioconcentration Factor is below 250 (FBK <250) so it falls into the low category. Penaeus merguiensis is more exposed to heavy metals dissolved in water than those released from sediment.Perairan Teluk Kelabat memiliki kekayaan sumber daya laut yang cukup penting dalam mendukung perekonomian Kabupaten Bangka dan Kabupaten Bangka Barat. Penelitian ini bertujuan untuk mengukur kandungan logam berat Pb dan Cu (air laut, sedimen, dan Penaeus merguiensis) dan mengukur kemampuan Penaeus merguiensis dalam mengakumulasi logam berat Pb dan Cu. Logam berat Pb dan Cu padaair, sedimen dan Penaeus merguiensisdianalisis menggunakan Flame Atomic Absorption Spectrophotometer (Flame AAS). Hasil penelitian menunjukkan bahwa konsentrasi logam berat dalam air dengan kisaran rata-rata Pb (0,1042-0,1748 mg/L) dan Cu (0,000013-0,000021 mg/L). Kisaran konsentrasi rata-rata logam berat dalam sedimen Pb (7,15-7,73 mg/kg) dan Cu (0,0016-0,00219 mg/kg). Kisaran konsentrasi rata-rata logam berat Pb di Penaeus merguiensis (1,34-1,54 mg/kg) dan Cu (0,0003-0,00045 mg/kg). Kemampuan rata-rata Penaeus merguiensis dalam mengakumulasi logam berat Pb dan Cu yaitu 15,83 terhadap air dan 0,19 terhadap sedimen. Nilai Faktor Biokonsentrasi tersebut di bawah 250 (FBK< 250) sehingga masuk dalam kategori rendah. Penaeus merguiensis lebih banyak terpapar logam berat yang terlarut dalam air daripada yang terlepas dari sedimen. 

scholarly journals Bioakumulasi Logam Berat Pb dan Cu terhadap Penaeus merguiensis di Perairan Teluk Kelabat Bagian Dalam

2019 ◽  
Vol 22 (1) ◽  
pp. 1
Author(s):  
Andini Komalasari ◽  
Budi Afriyansyah ◽  
Muhammad Ihsan ◽  
Mohammad Agung Nugraha
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption ◽  
Bioconcentration Factor ◽  
Sea Water ◽  
Average Concentration ◽  
Atomic Absorption Spectrophotometer ◽  
Average Ability ◽  
Flame Atomic Absorption ◽  
Flame Atomic Absorption Spectrophotometer ◽  
Penaeus Merguiensis

Bioaccumulation of Pb and Cu Heavy Metals to Penaeus merguiensis in the Waters of Inner Kelabat BayThe waters of Kelabat Bay has a wealth of marine resources that is quite important in supporting the economy of Bangka Regency and West Bangka Regency. The purpose of this research was to measure the concentration of heavy metals Pb and Cu (sea water, sediment, and Penaeus merguiensis) and measure the ability of Penaeus merguiensis in accumulating heavy metals Pb and Cu. Heavy metals Pb and Cu in Water, sediments and Penaeus merguiensis analyzed using Flame Atomic Absorption Spectrophotometer (Flame AAS). The results showed that concentration of heavy metals in water with an average range of Pb (0,1042-0,1748 mg/L) and Cu (0,000013-0,000021 mg/L). Average concentration of heavy metals in Pb sediments (7,15-7,73 mg/kg) and Cu (0,0016-0,00219 mg/kg ). Average concentration of Pb heavy metals in Penaeus merguiensis (1,34-1,54 mg/kg) and Cu (0,0003-0,00045 mg/kg). The average ability of Penaeus merguiensis in accumulating heavy metals Pb and Cu is 15,83 to water and 0,19 to sediment. The value of the Bioconcentration Factor is below 250 (FBK <250) so it falls into the low category. Penaeus merguiensis is more exposed to heavy metals dissolved in water than those released from sediment.Perairan Teluk Kelabat memiliki kekayaan sumber daya laut yang cukup penting dalam mendukung perekonomian Kabupaten Bangka dan Kabupaten Bangka Barat. Penelitian ini bertujuan untuk mengukur kandungan logam berat Pb dan Cu (air laut, sedimen, dan Penaeus merguiensis) dan mengukur kemampuan Penaeus merguiensis dalam mengakumulasi logam berat Pb dan Cu. Logam berat Pb dan Cu padaair, sedimen dan Penaeus merguiensisdianalisis menggunakan Flame Atomic Absorption Spectrophotometer (Flame AAS). Hasil penelitian menunjukkan bahwa konsentrasi logam berat dalam air dengan kisaran rata-rata Pb (0,1042-0,1748 mg/L) dan Cu (0,000013-0,000021 mg/L). Kisaran konsentrasi rata-rata logam berat dalam sedimen Pb (7,15-7,73 mg/kg) dan Cu (0,0016-0,00219 mg/kg). Kisaran konsentrasi rata-rata logam berat Pb di Penaeus merguiensis (1,34-1,54 mg/kg) dan Cu (0,0003-0,00045 mg/kg). Kemampuan rata-rata Penaeus merguiensis dalam mengakumulasi logam berat Pb dan Cu yaitu 15,83 terhadap air dan 0,19 terhadap sedimen. Nilai Faktor Biokonsentrasi tersebut di bawah 250 (FBK< 250) sehingga masuk dalam kategori rendah. Penaeus merguiensis lebih banyak terpapar logam berat yang terlarut dalam air daripada yang terlepas dari sedimen. 

scholarly journals Bioaccumulation of Some Heavy Metals in Ayre Fish (Sperata Aor Hamilton, 1822), Sediment and Water of Dhaleshwari River in Dry Season

2012 ◽  
Vol 40 (1) ◽  
pp. 147-153 ◽  
Author(s):  
Abu Tweb Abu Ahmed ◽  
Suman Mandal ◽  
Didarul Alam Chowdhury ◽  
Abu Rayhan M Tareq ◽  
M Mizanur Rahman
Keyword(s):  
Heavy Metals ◽  
Nitric Acid ◽  
Atomic Absorption ◽  
Water Samples ◽  
Dry Weight ◽  
Acid Digestion ◽  
Fish Organs ◽  
Flame Atomic Absorption ◽  
Flame Atomic Absorption Spectrophotometer ◽  
Nitric Acid Digestion

The present study was carried out to determine the level of bioaccumulation of some heavy metals in a freshwater fish Ayre (Sperata aor Hamilton, 1822) collected from Rajfulbaria (23°48?56.36? N and 90°14?54.04? E) of  Dhaleshwari river. Four heavy metals, namely chromium (Cr), copper (Cu), lead (Pb), and cadmium (Cd) were selected for this study. Metal concentrations were   determined by Flame Atomic Absorption Spectrophotometer after nitric acid  digestion of samples. The concentrations of accumulated heavy metals in fish were  also compared with the concentrations of metals in the sediments and waters of  that river. The level of bioaccumulations in different organs of S. aor were determined separately and compared among them. Average bioaccumulation levels  in S. aor were Cr: 1.458 mg/kg, Cu: 31.500 mg/kg, Pb: 18.776 mg/kg and Cd:  0.487 mg/kg of dry weight. The levels of heavy metals in sediments were Cr: 27.393 mg/kg, Cu: 37.450 mg/kg, Pb: 15.797 mg/kg and Cd: 2.083 mg/kg, and in water were Cr: 0.130 ppm, Cu: 0.000 ppm, Pb: 0.201 ppm and Cd: 0.001 ppm.The bioaccumulation of these four heavy metals in fish organs, sediment and  water samples were also compared with FAO approved standard levels and other  related studies, and found that the levels of bioaccumulation in the Dhaleshwari river exceeded all the standard levels. DOI: http://dx.doi.org/10.3329/bjz.v40i1.12904 Bangladesh J. Zool. 40(1):147-153, 2012

scholarly journals Studi Penurunan Kadar Logam Besi (Fe) dan Logam Tembaga (Cu) pada Air Embung Menggunakan Adsorben Nanosilika

2017 ◽  
Vol 17 (2) ◽  
pp. 131
Author(s):  
Emas Agus Prastyo Wibowo ◽  
Ika Sri Hardyanti ◽  
Isni Nurani ◽  
Dyan Septyaningsih Hardjono HP ◽  
Aden Dhana Rizkita
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Atomic Absorption ◽  
Water Use ◽  
Metal Content ◽  
Atomic Absorption Spectrophotometer ◽  
Absorption Method ◽  
Wastewater Purification ◽  
Stirring Time ◽  
Independent Variable

STUDI PENURUNAN KADAR LOGAM BESI (Fe) DAN LOGAM TEMBAGA (Cu) PADA AIR EMBUNG MENGGUNAKAN ADSORBEN NANOSILIKAABSTRAKPolusi limbah logam berat dalam air merupakan satu permasalahan lingkungan yang penting. Dalam mengatasi permasalahan tersebut dapat dilakukan purifikasi terhadap air tersebut. Metode yang dapat digunakan untuk purifikasi limbah sangat beragam salah satunya adalah absorpsi. Secara umum metode absorpsi telah banyak digunakan dalam purifikasi air limbah. Metode absorpsi dapat menurunkan kadar logam yang terlarut pada limbah. cair dengan cara menyerap logam-logam tersebut ke dalam permukaan absorbennya. Tujuan dilakukan penelitian ini adalah  untuk menurunkan konsentrasi logam besi (Fe) dan tembaga (Cu) menggunakan adsorben nanosilika. Penelitian ini menggunakan variabel bebas yaitu waktu pengadukan (20 menit, 40 menit, dan 60 menit). Hasil akhir filtrat air embung kemudian diukur absorbansinya menggunakan Spektrofotometer Serapan Atom. Berdasarkan hasil analisa menggunakan instrumen SSA diperoleh hasil bahwa tidak terjadi penurunan logam Fe maupun Cu. Dalam hal ini terjadi peningkatan konsentrasi dalam logam Fe maupun Cu, hal ini dikarenakan kurangnya waktu pengadukan dan pengaruh dari adsorben nanosilika.Kata Kunci: limbah, logam berat, nanosilika STUDY OF DECREASING METALS IRON (Fe) AND COPPER (Cu) ON EMBUNG WATER USE OF NANOSILICA ADSORBEN ABSTRACTHeavy waste pollution of heavy metals in the water is an important environment issue. To solve the problem, its can be purified the water. The methods that can be used for waste purification are very diverse, one of which is absorption. In general, the method of absorption has been widely used in wastewater purification. The absorption method can decrease dissolved metal content in the waste. liquid by absorbing the metals into the absorbent surface. Research has been conducted to reduce the concentration of iron (Fe) and copper (Cu) by using nanosilica adsorbent. This research used to independent variable that is stirring time (20 minutes, 40 minutes, and 60 minutes). The final result of filtrate embung water then measured its absorbance using Atomic Absorption Spectrophotometer (AAS). Based on the result of the analysis using SSA instrument, it is found that there is no decrease of Fe and Cu metals. There are several reasons for those problem such as due to lack of stirring time and the influence of nanosilica adsorbent.Keywords: Waste pollution, heavy metal, nanosilica

scholarly journals The Occurrence, Pathways, and Risk Assessment of Heavy Metals in Raw Milk from Industrial Areas in China

Toxics ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 320
Author(s):  
Chuanyou Su ◽  
Yanan Gao ◽  
Xueyin Qu ◽  
Xuewei Zhou ◽  
Xue Yang ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Atomic Absorption ◽  
Inductively Coupled Plasma ◽  
Graphite Furnace ◽  
Hazard Index ◽  
Raw Milk ◽  
Atomic Fluorescence Spectrometry ◽  
Industrial Areas ◽  
Flame Atomic Absorption

This study evaluated chromium (Cr), arsenic (As), cadmium (Cd), and lead (Pb) contamination in raw milk from industrial areas in China, identified the possible pathways of heavy metals from the environment to raw milk, and made a risk assessment of the consumption of heavy metals from milk consumption. The Cr, As, Cd, and Pb concentrations in raw milk, water and silage were analyzed using inductively coupled plasma mass spectrometry. The Cr and As in soil were analyzed by flame atomic absorption spectrometry and atomic fluorescence spectrometry, respectively. Cd and Pb in soil were determined by a Graphite furnace atomic absorption spectrophotometer. The Cr and As concentrations in milk from industrial areas were 2.41 ± 2.12 and 0.44 ± 0.31 μg/kg, respectively, which were significantly higher (p < 0.01) than those from non-industrial areas, which had levels of 1.10 ± 0.15 and 0.25 ± 0.09 μg/kg, respectively. Chromium was mainly transferred through the soil-silage-milk pathway, As was transferred through the water-silage-milk pathway, while Cd was mainly transferred through the soil (water)-silage-milk pathway. The contributions of each metal to the overall hazard index (HI) followed a descending order of As, Cr, Pb, and Cd, with values of 46.64%, 25.54%, 24.30%, and 3.52%, respectively. Children were at higher risk than adults.

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