Use of pattern recognition methods in the interpretation of heavy metal content (lead and cadmium) in children's scalp hair

The problem of food contamination by heavy metals due to their accumulation in biosystems as a result of anthropogenic inﬂuences has been studied. The results of cadmium, lead, iron and manganese in cattle from the Novosibirsk Region and the Altai Territory are presented. The purpose of the study was to assess the impact of the ecological and geographical factor on the heavy metal content in the lungs of Hereford bulls. Lung samples were taken from 31 clinically healthy Hereford bulls aged 16-18 months. Sample preparation was carried out in accordance with GOST 26929-94 and 30178-96. The chemical composition of the samples was determined by atomic absorption spectrometry with ﬂame and electrothermal atomization. The median values of the content of cadmium, lead, iron and manganese in the lungs of bull-calf were in the range of 0,01-0,12; 0,07-0,11; 70,9-89,1 and 0,3-0,4 mg/kg. The phenotypic variability of the level of iron and manganese was relatively low, while that of lead and cadmium was high. The dispersions of lead and cadmium levels in the animal groups studied were homogeneous, manganese and iron variants were heterogeneous. The inﬂuence of the ecological and geographical factor is characteristic only for cadmium levels. For manganese, iron, lead and cadmium the calculated reference ranges are: 0-1.12; 0-148.1 and 0-0.170 mg/kg respectively. They can serve as a guideline for Hereford cattle bred in the territories of Krasnozersky, Novosibirsky and Maslyaninsky districts of the Novosibirsk region and the Tselinny district of the Altai Territory.

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Analysis of Leading Metal (Pb) and Cadmium (Cd) Content Green Shells (perna viridis L.) in the Kreneng Market

Journal of Sustainable Development Science ◽

10.46650/jsds.2.2.1008.40-45 ◽

2020 ◽

Vol 2 (2) ◽

pp. 40-45

Author(s):

A. A. Istri Mirah Dharmadewi

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Metal Contamination ◽

Metal Content ◽

Heavy Metal Contamination ◽

Heavy Metal Content ◽

Perna Viridis ◽

Lead And Cadmium ◽

Wet Ashing ◽

Maximum Limit

This research was conducted to determine the content of heavy metals lead (Pb) and Cadmium (Cd) in green shells circulating in the kreneng market. Samples of green shells were taken from the kreneng market, Bali. Then analysis of the content of lead (Pb) and Cadmium (Cd) in the Analytical Laboratory of Udayana University. Samples of green mussels (Perna viridis L.) Were opened from the shell to take the meat. Furthermore, the sample is mashed by chopping and pounding and put into erlenmeyer. Each sample was given 3 repetitions using the factorial pattern RAL. Then with a wet ashing process (wet destruction). The results showed that the heavy metal content of lead and cadmium in green mussels (Perna viridis L.) Exceeded the maximum limit of heavy metal contamination. The heavy metal content of lead (Pb) shellfish taken at the Kreneng Market is 29.595 mg / kg while the heavy metal content of cadmium (Cd) taken at the Kreneng market is 3.41 mg / kg the result of the heavy metal content analyzed exceeds the predetermined by the Food and Drug Supervisory Agency (BPOM).

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Evaluation of Lead, Cadmium and Nickel Contamination in Lactuca Sativa Cultivated in Savadkooh Region, Iran

Asian Soil Research Journal ◽

10.9734/asrj/2021/v5i230104 ◽

2021 ◽

pp. 25-33

Author(s):

Gharibi, Azadeh ◽

Khakipour, Nazanin

Keyword(s):

Heavy Metal ◽

Metal Content ◽

Heavy Metal Contamination ◽

Cadmium Concentration ◽

Absorption Spectrometry ◽

Heavy Metal Content ◽

National Standard ◽

Nickel Concentration ◽

Significance Level ◽

Lead And Cadmium

Aims: To investigate the level of heavy metal contamination in the lettuce cultivated in Place: Savadkooh County in Mazandaran, Iran. Methodology: five samples were taken from the lettuce produced in this area and also from the soils in which they were cultivated, and the concentrations of Nickel, Lead, and Cadmium were measured by atomic absorption spectrometry. Descriptive and inferential statistics were used to analyze the measured data. Data analysis was performed by SPSS ver.16 at the 0.05 significance level. Results: The highest lead concentration, 0.07ppm, was observed in the sample No. 5 (Lettuce 5), the highest cadmium concentration, 0.008ppm, was measured in the sample No. 2 (Lettuce 2), and the highest nickel concentration, 0.07ppm, was observed in the samples No. 1 and 4 (Lettuce 1 and Lettuce 4). Conclusion: The results of this study show that while all the lettuces cultivated in the Savadkooh region contain some amounts of nickel, cadmium, and lead, these amounts are much lower than the limits specified in Iran’s national standard, and therefore these products are perfectly safe to consume. Also, the concentration of each heavy metal in the lettuces was found to be directly correlated with the corresponding concentration in the soil in which they were grown, indicating that the heavy metal content of the products increases with the increasing heavy metal content of the soil.

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Dust Accumulation, Heavy Metal Content and Stomata Morphology of Some Medicinal Plants at Rock Quarrying Locations at Lokpaukwu, Nigeria

International Journal of Environment and Climate Change ◽

10.9734/ijecc/2020/v10i1230331 ◽

2020 ◽

pp. 540-549

Author(s):

C. E. Ogbonna ◽

F. I. Nwafor ◽

O. O. Ogbonnaya

Keyword(s):

Heavy Metal ◽

Medicinal Plants ◽

Metal Content ◽

Cadmium Concentration ◽

Heavy Metal Content ◽

Mitigation Measures ◽

Sample Collection ◽

Lead And Cadmium ◽

Polluted Sites ◽

Dust Accumulation

Aims: This study evaluated the effect of rock quarrying on dust accumulation, heavy metal content and stomata features of some medicinal plants at Lokpaukwu, Nigeria. Place and Duration of Study: Sample collection was carried out at the quarry sites in Lokpaukwu, followed by laboratory analyses which were conducted in the Department of Pharmacognosy and Environmental Medicines and Centre for Energy Research and Development (CERD), University of Nigeria, Nsukka between January and March, 2019. Methodology: Five (5) commonly used medicinal plants were selected and collected from the two pollution sites (A and B). Same species collected 20 km away from the sites served as control. Clearing method was employed in foliar micro-analysis while heavy metal accumulation in the samples was estimated by atomic absorption spectrometry (AAS). Results: The study showed considerable variation in dust load among the plants from each study site. This led to some observed physiological anomalies– occlusion of stomata pores, plasmolysis, and shrunk epidermal cells. Quantitative stomata parameters were also affected as plants from polluted sites had narrower pores and more number of stomata than the control. Concentrations of heavy metals (Pb, Zn, Cd, As and Cu) in plants collected from dust polluted sites were also higher than those from the control location. For example, lead and cadmium concentration in most of the plants were in this order: site A > site B > site C. Conclusion: These findings have further validated reports of earlier researchers on the deleterious effects of dust pollution as a result of quarrying activities on plant health. Strict compliance to precautionary and mitigation measures by both the inhabitants and quarry companies are recommended for safer environment and good health.

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Study of The Pharmacological Activity and Heavy Metal Content of Eichhornia Crassipes Extract

ICONIET PROCEEDING ◽

10.33555/iconiet.v2i2.17 ◽

2019 ◽

Vol 2 (2) ◽

pp. 91-95 ◽

Cited By ~ 1

Author(s):

Jimmy Jimmy ◽

Diah Indriani Widiputri ◽

Paulus Gunawan

Keyword(s):

Heavy Metal ◽

Pharmacological Activity ◽

Water Hyacinth ◽

Metal Content ◽

Eichhornia Crassipes ◽

High Light Intensity ◽

Milling Process ◽

Heavy Metal Content ◽

Solvent Ratio ◽

Negative Impacts

Eichhornia crassipes is well-known as water hyacinth. Water hyacinth grows rapidly in the nutrient-rich water and high light intensity places. The uncontrollable growth of water hyacinth has caused many negative impacts to the environment. For instance, interrupted water transport and decreased population of aquatic lives. The capacity of utilising water hyacinth is slower than water hyacinth growth and water hyacinth is still considered as a threat to theecosystem. This work was focused on the study of the pharmacological activity and heavy metal content of water hyacinth in Lake Cipondoh, Tangerang. Fresh water hyacinth was pre-treated through oven-drying and milling process. After that, each part of the plant was macerated by using multiple extraction method with 96% ethanol/water and three variations of sample-to-solvent ratios (1:30, 1:50, and 1:75 w/v). The result of the experiment showed thatwater hyacinth leaves produced an extract with lowest IC 50 (55.76 ± 6.73 ppm) compared toother parts. The most optimum solvent used to achieve this result was 96% ethanol/water (1:1 v/v). In order to obtain the lowest antioxidant activity, the sample to solvent ratio used was 1:50 and the heavy metal in the extract was very low. With this result, it was concluded that there is a promising opportunity to apply the water hyacinth growing in Lake Cipondoh, Tangerang as herbal medicine ingredient. Through this utilization, the overall number of water hyacinth in Indonesia can be reduced or at the least be controlled, so that the environmental problem caused by this plant can be minimized.

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