scholarly journals Assessment of the Levels of Potentially Toxic Metals in Selected Poultry Feeds Sold in Makurdi Metropolis, Benue State, Nigeria

2020 ◽  
Vol 3 (3) ◽  
Keyword(s):  
Trace Elements ◽  
Health Risk ◽  
Atomic Absorption ◽  
Toxic Metals ◽  
Atomic Absorption Spectrophotometry ◽  
Poultry Feed ◽  
Potentially Toxic Metals ◽  
Allowable Limit ◽  
Absorption Spectrophotometry ◽  
Feed Samples

Eight (8) selected poultry feed samples from four (4) different brands namely; Hybrid, Chikun, Amo Byng and Vital were purchased from Makurdi Metropolis. The samples (HS, HF, CS, CF, ABS, ABF, VS and VF) denote Hybrid starter, Hybrid finisher, Chikun Starter, Chickun Finisher, Amo Byng Starter, Amo Byng Finisher, Vital Starter and Vital Finisher respectively. Toxic metals content was determined using Atomic Absorption Spectrophotometry and expressed in mg/kg. The results showed that Cd was only present in CF (0.80). Chromium was found only in ABS (15.4) and ABF (34.9). The concentration of Cu in (HS, HF, CS, CF, ABS, ABF, VS and VF) was 10.3, 15.0, 24.7, 27.9, 6.90, 9.70, 4.70 and 5.20 respectively. The concentration of Fe in (HS, HF, CS, CF, ABS, ABF, VS and VF) was 338,378, 307, 273, 389, 289, 398 and 405 respectively. The concentrations of Mn in (HS, HF, CS, CF, ABS, ABF, VS and VF) were 103, 95.3, 110, 97.4, 94.0, 103, 25.8 and 77.9 respectively. Lead was not detected in all the samples. The concentrations of Zn in (HS, HF, CS, CF, ABS, ABF, VS and VF) were 78.6, 75.1, 156, 177, 100, 67.2, 5.1 and 96.5 respectively. Copper, Fe, Mn, and Zn were the most abundant toxic metals found in the poultry feed samples. Lead was generally below the allowable limit. Chromium in ABS and ABF was higher than the permissible level. The concentrations of Fe, Mn and Zn in all the feeds were found to be above the limits. Copper found in ABS, ABF, VS and VF was within the limits permitted but levels in CS and CF were far above the limit. The concentrations of most of the trace elements were found to be higher than recommended levels which may pose some environmental and health risk if not properly regulated.

scholarly journals ASSESSMENT OF SOME HEAVY METALS IN SOME CHOCOLATE BRANDS AND BREAD SOLD IN MAIDUGURI, BORNO STATE, NIGERIA

2020 ◽  
Vol 2 (4) ◽  
pp. 71-75
Author(s):  
A.I. Mohammed ◽  
A.A. Ahmed ◽  
T. Lot ◽  
M. Solomon
Keyword(s):  
Heavy Metals ◽  
Health Risk ◽  
Atomic Absorption ◽  
Atomic Absorption Spectrophotometry ◽  
Acid Digestion ◽  
Potential Health ◽  
Potential Health Risk ◽  
Absorption Spectrophotometry

Three brands of chocolate and five varieties of bread samples were collected and subjected to acid digestion for evaluation of some heavy metals (Cu, Cr, Pb, Fe, Cd and Zn) using atomic absorption spectrophotometry. The concentrations of the studied heavy metals in the chocolate brands were in the range 0.02-0.20; 0.02-0.10 and 0.09-0.20 mg/kg for Cd, Zn and Cr respectively. whereas Pb was not detected in the study. As per the bread samples, the concentrations ranged 0.05-0.13; 0.60-2.24, 0.30-0.06 and 0.02-0.10 mg/kg for Cd, Zn, Cr and Pb respectively. This study indicates that the concentrations of the studied brands of chocolate and bread are within the allowable limits hence pose no potential health risk or hazard upon consumption. Keywords: Chocolate, Concentrations, Spectrometry, Acid digestion

scholarly journals Analisis Kadar Merkuri, Derajat Keasaman dan Faktor Risiko Kesehatan Pada Penambang Emas Tanpa Izin di Kecamatan Cempaka

2021 ◽  
Vol 48 (4) ◽  
pp. 281-290
Author(s):  
Meilya Farika Indah ◽  
Norsita Agustina
Keyword(s):  
Risk Factors ◽  
Health Risk ◽  
Atomic Absorption ◽  
Atomic Absorption Spectrophotometry ◽  
Mercury Content ◽  
Test Method ◽  
Health Risk Factors ◽  
Cold Vapor ◽  
Absorption Spectrophotometry ◽  
Cold Vapor Atomic Absorption

Cempaka District is the largest traditional gold mining site in South Kalimantan Province. The purpose of this study was to identify levels of mercury (Hg), degree of acidity (pH) and health risk factors (age, years of service and completeness of PPE) in PETI workers in Cempaka District. The method used in this research is an observational method which is quantitative in nature with a cross-pontong approach, with a proportional difference test method. Sampling was carried out in the upstream and downstream areas. Measurement of water mercury levels was measured by means of Cold Vapor Atomic Absorption Spectrophotometry (CV-AAS) at the Industrial Research and Standardization Center (BARISTAND) in Banjarbaru City. As for the health risk factor variables using the method of observation and interviews with a questionnaire. The research sample was 40 active PETI workers. The results showed that the quality of water with mercury content exceeds the threshold, for the parameter of acidity (pH) within the norm limit of 6-9. Meanwhile, for health risk factors, PETI workers are mostly old, have worked ≥ 5 years and do not completely use PPE. Suggestions are to pay attention not to dispose of waste mercury (Hg) content into rivers. Keywords : Mercury levels ( Hg ); degrees acidity ( pH ); health risk factors; the workers Abstrak Kecamatan Cempaka merupakan tempat penambangan emas tradisional yang terbesar di Provinsi Kalimantan Selatan. Tujuan penelitian ini adalah untuk mengidentifikasi besar kadar merkuri (Hg), derajat keasaman (pH) dan faktor risiko kesehatan (Umur, masa kerja dan kelengkapan APD) pada pekerja PETI di Kecamatan Cempaka. Metode yang digunakan dalam penelitian ini yaitu metode observasional yang bersifat kuantitatif dengan pendekatan potong lintang, dengan metode uji-beda proporsi. Pengambilan sampel dilakukan pada daerah hulu dan hilir. Pengukuran kadar merkuri air diukur dengan alat Cold Vapor Atomic Absorption Spectrophotometry (CV-AAS) di Balai Riset dan Standarisasi Industri (BARISTAND) di Kota Banjarbaru. Sedangkan untuk variabel faktor risiko kesehatan menggunakan metode pengamatan dan wawancara dengan kuosioner. Sampel penelitian adalah pekerja PETI yang aktif sebanyak 40 responden. Hasil penelitian menunjukkan kualitas air dengan kandungan kadar merkuri melebihi ambang batas, untuk parameter derajat keasaman (pH) dalam batas norma sebesar 6-9. Sedangkan untuk faktor risiko kesehatan, pekerja PETI lebih banyak berumur tua , masa kerja ≥ 5 tahun dan tidak lengkap menggunakan APD. Saran untuk memperhatikan untuk tidak membuang limbah kandungan kadar merkuri (Hg) ke aliran sungai. Kata kunci : Kadar Merkuri (Hg); Derajat Keasaman (pH); Faktor Risiko kesehatan; Pekerja PETI

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