scholarly journals Determination of Heavy Metals in Locally Available Chocolates in Lahore Region

2021 ◽  
Vol 9 (6) ◽  
pp. 1144-1153
Author(s):  
Muhammad Amjad ◽  
Shabbir Hussain ◽  
Zia Ur Rehman Baloch ◽  
Aoun Raza
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Toxicity ◽  
The Body ◽  
Toxic Heavy Metals ◽  
Allowable Limit ◽  
Chronic Effects

Heavy metal toxicity can either be acute or chronic effects. Long-term exposure of the body to heavy metal can progressively lead to muscular, physical and neurological degenerative process. In this research, a total of 30 representative chocolate samples were collected from local shops and markets in Lahore. All the samples were analysed to assess the levels of Lead (Pb), Nickel (Ni), Chromium (Cr) and Cadmium (Cd) by using Atomic Absorption Spectrophotometer in Pakistan Council of Scientific and Industrial Research (PCSIR), Lahore. It was observed that the majority of chocolate samples contain heavy metals levels higher than the permissible limits as recommended by Punjab Food Rules (PFR) 2011. The levels of Pb ranged between 0.375 and 3.4 mg/kg with 90% samples having concentrations exceeding PFR allowable limit (0.5 mg/kg). Whereas, Ni concentrations varied from 0.005 to 0.28 mg/kg and 80% samples were above the PFR limit (0.025 mg/kg). Further, Cr levels analysed between 0.005 to 0.28 mg/kg and 53% samples had Cr concentrations higher than PFR limit (0.02 mg/kg). Similarly, Cd levels were observed between 0.50-3.25 mg/kg with 53% samples having Cd concentrations exceeding the PFR limit (1.0 mg/kg). Investigation indicates that the quality of available chocolates is not recommendable for eating because of the higher concentrations of toxic heavy metals.

Determination of Traces Heavy Metals from Solid Residues Formed by Combustion of Lignite in Relation to Degree of Accessibility in Soil and Plants

2017 ◽  
Vol 68 (10) ◽  
pp. 2363-2366
Author(s):  
Delia Nica Badea
Keyword(s):  
Heavy Metals ◽  
Power Plant ◽  
Thermal Power ◽  
Reference Value ◽  
Combustion Products ◽  
Toxic Heavy Metals ◽  
Area Of Influence ◽  
Risk Potential

The paper evaluates the presence and content of traces of heavy metals Hg, Pb, Ni, Cd (total forms) from coal and solid combustion products, the degree of transfer and accessibility in the area of influence of a lignite power plant. The content of toxic heavy metals in residues are characterized by RE Meiji [ 1 (Pb and Hg) and REMeij �1 (Ni and Cd) for the filter ash. Pb and Ni content in the soil exceeds normal values, and Pb exceeds and alert value for sensitive soils around the residue deposit (70.20 mg.Kg-1). The degree of accessibility of the metals in plants (TF), reported at the Khan reference value (0.5), indicates a significant bioaccumulation level for the metals: Cd (1.9) and Hg (0.6) inside the deposit; Cd (0.39) at the base of the deposit, Hg (0.8) in the area of the thermal power plant. The trace levels of heavy metals analyzed by GFAAS and CVAAS (Hg), indicates a moderate risk potential for food safety and quality of life in the studied area.

ANALISA LOGAM BESI (Fe) DI SUNGAI PASAR DAERAH BELANGWETAN KLATEN DENGAN METODE SPEKTROFOTOMETRI SERAPAN ATOM

2017 ◽  
Vol 2 (1) ◽  
pp. 39
Author(s):  
Rahmi Nurhaini ◽  
Arief Affandi
Keyword(s):  
Heavy Metals ◽  
Sampling Method ◽  
Research Result ◽  
The Body ◽  
Clean Water ◽  
Observational Method ◽  
The Mean ◽  
The Republic

Iron (Fe) is one of many heavy metals that is corrosive resistant, dense, and has a low melting point. If accumulated in the body, the metal can cause some medical conditions, such as irritation to skin and eyes, breathing problems, and in the long term, cancer. This research aims to know generally the spread of metallic iron (Fe) in the river Pasar in Belangwetan, Klaten. This study was conducted using an observational method in which researchers did not examine the effects of interventions. Sampling was done using purposive sampling method taken from three points, namely the upper, middle, lower. Determination of iron levels by Atomic Absorption Spectrophotometer (AAS) obtained a positive result, and the data was processed using SPSS to determine the Mean and Standard Deviation. Of the research result, it could be known the Mean score was 2.33 ppm and SD was 0.0352. The result of this research indicated that the levels of iron in the river Pasar in Belangwetan were 2.33 ppm. It means that the levels violate the regulation of the Minister of Health of the Republic of Indonesia, which is not more than 1mg/L (1ppm) in the clean water

scholarly journals Determination of heavy metal deposition in the county of Obrenovac (Serbia) using mosses as bioindicators II: Cadmium (CD), cobalt (CO), and chromium (CR)

2006 ◽  
Vol 58 (2) ◽  
pp. 95-104 ◽  
Author(s):  
V. Vukojevic ◽  
M. Sabovljevic ◽  
Aneta Sabovljevic ◽  
Nevena Mihajlovic ◽  
Gordana Drazic ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Atmospheric Deposition ◽  
Metal Content ◽  
Short Term ◽  
Hypnum Cupressiforme ◽  
Bryum Argenteum ◽  
Heavy Metal Deposition

In the present study, the deposition of three heavy metals (Cd, Co and Cr) in the county of Obrenovac (Serbia) is determined using four moss taxa (Bryum argenteum, Bryum capillare, Brachythecium sp. and Hypnum cupressiforme) as bioindicators. Distribution of average heavy metal content in all mosses in the county of Obrenovac is presented in maps, while long term atmospheric deposition (in the mosses Bryum argenteum and B. capillare) and short term atmospheric deposition (in the mosses Brachythecium sp. and Hypnum cupressiforme) are discussed and in tables. Areas of the highest contaminations are highlighted.

scholarly journals Bees: bioindicators of the environment

2020 ◽  
Author(s):  
Iryna Kovalchuk
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Raw Materials ◽  
Literature Information ◽  
Heavy Metals Accumulation ◽  
Systems Research ◽  
Metals Accumulation ◽  
Methodological Approaches

It is well-known that melliferous bees are the most sensitive indicators of ecologic conditions of natural environment. Researches in recent years show that bees and bee products can accumulate selectively some heavy metals, radioactive substances, pesticides and other polluters. Scales of heavy metals accumulation on the territory of Ukraine, as toxins of technologic origin unfortunately increase. Environmental pollution by heavy metals leads to their accumulation in plant and animal raw materials and production, consequently their quality decreases. It was proved that apiary accommodation in heavy metal polluted territories leads to their accumulation in pollen, honey bee-comb and wax. But the questions concerning study of peculiarities of sources, ways of pollution and heavy metals content in bee products are not enough lightened, and that was the purpose of our work. Generalized we present in literature information and results of our researches about the use of bees and bee products in quality of bioindicator contamination of environment by heavy metals. Dependence of content of heavy metals is set in the organism of bees in relation intensity of greening to contamination of environment. It is marked on the necessity of lead through of systems research in relation to determination of content of heavy metals in fabrics of bees and bee products with the purpose of search of new methodological approaches for authentication these toxicant of objective environment of contamination and him apimonitoring. Methodological elements of the researches of regularities of heavy metals and lipids content in the tissues of different anatomic sections of the organism and bee products were elaborated.

Leaching of Heavy Metals Using TCLP and SPLP Method from Fired Clay Brick Incorporating with Mosaic Sludge

2016 ◽  
Vol 857 ◽  
pp. 352-357
Author(s):  
Aeslina binti Abdul Kadir ◽  
Nur Athirah Ideris ◽  
Ahmad Shayuti Abdul Rahim
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Compressive Strength ◽  
Metal Concentration ◽  
Drainage System ◽  
Heavy Metal Concentration ◽  
Clay Brick ◽  
Adequate Quality

Mosaic sludge is sewerage from mosaic industrial activities such as cutting, polishing and grinding. This sludge mostly will be disposed directly to landfill and some of it was discharged in drainage system without proper treatment. Therefore, in this study, mosaic sludge from the mosaic industry were reused and incorporated into fired clay brick in order to provide alternative disposal method, producing adequate quality of brick as well as minimizing the heavy metal leachability to the environment. First, X-Ray Fluorescence (XRF) was conducted to determine the heavy metal concentration from two types of mosaic sludge. The results indicate that the highest element concentration in mosaic sludge (BS and PS) shows that Barium is the highest with 3253ppm and 3260ppm. On the raw sludge, the lowest obtained in BS and PS is Cesium with 14ppm and 17ppm. SPLP and TCLP also conducted in this study and the results show that, even though the element such as ferum (Fe) and cadmium (Cd) was not detected in XRF but in SPLP and TCLP, it shows that these two elements exist in clay, BS and PS with low concentration. In term of properties, compressive strength was conducted by incorporating 0%, 1%, 5%, 10%, 20% and 30% bodymill and polishing sludge into fired clay brick. The results show that compressive strength of BS brick was stronger than PS brick. Lastly, Static Leachate Test (SLT) was conducted to measure the long term leachability of heavy metals from different percentages of mosaic sludge brick. In SLT result, ferum (Fe) shows the highest value of heavy metal concentration among other elements. The results for control brick, BS brick and PS brick show the same pattern and far from the limit set by USEPA.

scholarly journals Determination of Heavy Metals and Anti – Nutrients in Cow Meat Sold in Minna, Major Markets

2021 ◽  
pp. 45-50
Author(s):  
Suleiman I. Onuruoiza ◽  
Suleiman A. Itopa ◽  
Jwan’an L. Emmanuel ◽  
Adebiyi H. Yetunde ◽  
Aderemi O. Cornelius ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Toxicity ◽  
Heavy Metal Concentration ◽  
Well Being ◽  
Cyanogenic Glycoside ◽  
Chelating Activity ◽  
Daily Food ◽  
Cow Meat

Introduction: Meat is a major source of protein for the urban – population, but it could be susceptible to contamination by heavy metals, heavy metals and anti - nutrients pose a serious threat to human well being due to thier toxicity and chelating activity, this call for the need to determine thier level in meat which is one of our daily food. Objectives: This study is designed to determine the concentrations of heavy metals (Lead, Chromium, Cupper, Cadmium, and Zinc) and anti-nutrients (Phytate, Oxalate and cyanogenic glycoside) in cow meat sold in different locations in Minna, Niger State. Method: A total of 12 beef samples were bought from beef outlet in 4 major markets in Minna namely Bosso Market, Kure Market, Mobil Market, and Tunga Market. The level of the heavy metals were assayed using Atomic Absorbance Spectrophotometry (AAS) while that of anti – nutrients were determined using standard analytical methods. Results: Show that the concentration of Lead is highest across all locations while that of Zinc is the lowest across all locations. The order of the level of heavy metal concentration across the locations are Pb > Cd = Cu >Cr > Zn. Lead (Pb) concentrations across the four markets are 6.340±1.3562µg/g, 6.766±0.3684µg/g, 6.057±1.2097µg/g, 3.716±0.247µg/g respectively, while that of zinc are 0.310±0.0061µg/g, 0.304±0.0023µg/g, 0.298±0.0227µg/g, 0.299±0.0180µg/g respectively. Conclusion: Results from this study indicate that heavy metal toxicity could result from the consumption of cow meat from these study areas.

scholarly journals Heavy Metal Determination in Lipstick Products Using Inductively Coupled Plasma (ICP)

2021 ◽  
pp. 265-277
Author(s):  
Asma A. Al-Mouraee ◽  
Faten M. Ali Zainy
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Inductively Coupled Plasma ◽  
Low Cost ◽  
Correlation Coefficients ◽  
Optical Emission ◽  
The Body ◽  
Allowable Limit ◽  
Inductively Coupled ◽  
Nitric Acid Digestion

Cosmetics production and use are growing worldwide, yet users are concerned about toxicity and heavy metal pollution. Following nitric acid digestion, the estimated levels of lead (Pb), nickel (Ni), chromium (Cr), cadmium (Cd), arsenic (As), mercury (Hg), titanium (Ti), iron (Fe), and cobalt (Co), in 6 brands of lipstick (12 samples) obtained in the Saudi market have been computed by inductively coupled plasma optical emission spectroscopy. Correlation coefficients (R2) varied from 0.9992 to 0.9999 on the calibration curve, indicating good linearity. Except for low-cost specimens, the findings indicate that the concentrations of the metals under investigation are often lower than the acceptable limits of both the Saudi Standards, Metrology, and Quality Organization (SASO) and the Food and Drug Administration (FDA) (which revealed the maximum lead levels of 125.30 ppm, exceeding the allowed limit of 10 ppm). Arsenic was discovered in significant concentrations, exceeding the SASO permitted limit. Nickel was found at the FDAs allowable limit; chromium and cobalt were found in variable quantities in the majority of the specimens. Dark-colored lipstick had a greater overall content of heavy metals than light-colored lipstick. Numerous tests on SASO-approved lipsticks were conducted as part of the research. The lower-cost specimens were of lesser quality, failing some SASO tests. All such findings suggest that users should be cautious when buying low lipsticks since heavy metals may build up in the body over time, causing skin problems or diseases like cancer.

scholarly journals Determination of heavy metal deposition in the county of Obrenovac (Serbia) using mosses as bioindicators, III: Copper (Cu), Iron (Fe) and Mercury (Hg)

2007 ◽  
Vol 59 (4) ◽  
pp. 351-361 ◽  
Author(s):  
M. Sabovljevic ◽  
V. Vukojevic ◽  
Aneta Sabovljevic ◽  
Nevena Mihajlovic ◽  
Gordana Drazic ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Atmospheric Deposition ◽  
Metal Content ◽  
Short Term ◽  
Hypnum Cupressiforme ◽  
Bryum Argenteum ◽  
Heavy Metal Deposition

In this study, the deposition of three heavy metals (Cu, Fe and Hg) in four moss taxa (Bryum argenteum, Bryum capillare, Brachythecium sp. and Hypnum cupressiforme) in the county of Obrenovac (Serbia) is presented. The distribution of average heavy metal content in all mosses in the county of Obrenovac is presented on maps, while long-term atmospheric deposition (in the mosses Bryum argenteum and B. capillare) and short-term atmospheric deposition (in the mosses Brachythecium sp. and Hypnum cupressiforme) are discussed and given in a table. Areas of the highest contaminations are highlighted.

scholarly journals Determination of Heavy Metals in Sawdust Particles, Distribution in Soil and Accumulation in Plants at Ahiaeke Timber Market in Umuahia, Nigeria

2018 ◽  
Vol 2 (2) ◽  
pp. 160-170 ◽  
Author(s):  
P. C. Ogbonna ◽  
E. N. Kalu ◽  
O. U, Nwankwo
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Health Risks ◽  
Metal Toxicity ◽  
Main Route ◽  
Major Threat ◽  
Sources Of Pollution ◽  
The People ◽  
Timber Market

Farmers are constrained to farming on lands adjoined to sources of pollution without considering the health implications of consuming crops grown on such lands. The main route of entry of heavy metals in human body is via ingestion of food contaminated with heavy metals. Heavy metal toxicity has proven to be a major threat and there are several health risks associated with it. This, therefore, necessitated the determination of heavy metals in sawdust, distribution in soil and accumulation in plants at Ahiaeke timber market in Umuahia, Abia State. The study assessed metals (chromium [Cr], zinc [Zn], cadmium [Cd], and copper [Cu]) in sawdust particles, their distribution in soil and accumulation in plants. The highest concentration of Zn (51.00±1.84 mg/kg) and Cr (0.170±0.014 mg/kg) was observed at the sawdust dump 2, Cu (8.24±0.60 mg/kg) was highest at sawdust dump 1 while Cd (4.72±0.071 mg/kg) was highest at sawdust dump 3. The values of the highest concentration of Zn (119.7±7.02 mg/kg), Cu (75.85±4.80 mg/kg) and Cd (22.39±3.30 mg/kg) in soil were observed in 0-10 cm depth at the distance of 20 m. The values of Zn (119.7±7.02 mg/kg) and Cd (22.39±3.30 mg/kg) in soil is above the maximum permitted levels of 60 mg/kg (Zn) and 0.1 mg/kg (Cd) established by the Codex Alimentarius Commission. The highest concentration of Zn (34.70±7.05 mg/kg), Cu (5.34±0.11 mg/kg) and Cd (2.94±0.515) in plants was assimilated by Centrosema pubescence. The level of Cd in plants is well above the permissible limit (PL) 0.3 mg/kg set by FAO/WHO for vegetables and herbs. Consumption of such contaminated C. pubescence can be a route of entry of Cd in grazing animals’ vis-à-vis the people who depend on such herbivores for protein.

scholarly journals Heavy metal content and microbiological quality of Yaji (complex spice mixture) sold within Kano metropolis

2020 ◽  
Vol 12 (1) ◽  
pp. 93-98
Author(s):  
L. Abdulsalam ◽  
R.A. Usman
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Health Hazard ◽  
Microbiological Quality ◽  
Dry Weight ◽  
The Body ◽  
Klebsiella Species ◽  
Metal Contents ◽  
Hygienic Measures

In recent years, food biosafety has been a priority, as such a study was carried out on the microbiological and heavy metal contents of yaji; a complex spice mixture sold within Kano metropolis. A total of nine yaji samples were purchased randomly in several retail stores within Kano metropolis and compared with 3 samples prepared in the laboratory. The result of the analysis showed that the total aerobic mesophilic count, fungal count and coliform count ranged from 3.35×106 - >3.00×107cfu/g, <1.00×103 – 9.60×106cfu/g, and 3.6 - >1100MPN/g respectively. Staphylococcus aureus, Escherichia coli, Salmonella, Enterobacter and Klebsiella species were the bacteria isolated while  Fusarium, Rhizopus and Aspergillus species were the fungi isolated from the samples. The counts obtained were higher than the maximum acceptable levels provided by the ISO and FAO. The ranges of the concentration of heavy metals in dry weight were; lead 0.001 – 0.003, nickel 0.001 - 0.005, copper 0.002 - 0.020, zinc 0.105 – 0.223, iron 0.004 – 0.009 g/Kg. The levels of metals found in the samples were within the standard limits approved by WHO. This study showed that the samples were not contaminated with the studied heavy metals but were found to harbor microorganisms, which can pose serious health hazard to consumers. It is therefore recommended that strict hygienic measures should be taken during yaji preparation since the laboratory prepared yaji were less contaminated. Public enlightenment on the dangers of heavy metals consumption should be provided as continuous/routine consumption may result to the bioaccumulation of harmful metals in the body. Key words: Microbiological, heavy metal, spice, yaji, Kano.

Sign in / Sign up

Export Citation Format

Share Document