Heavy metal content of Callianassa spp. in Western Port

Baseline levels of the metals cadmium, copper, lead and zinc in C. arenosa, C. australzensis and C. limosa from Western Port, Victoria, are presented. The data show that C. australiensis from the North Arm contained the highest levels of cadmium, lead and zinc.

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Correlation between radioactivity levels and heavy metal content in the soils of the North Kosovska Mitrovica environment

Environmental Science Processes & Impacts ◽

10.1039/c3em00208j ◽

2013 ◽

Vol 15 (9) ◽

pp. 1735 ◽

Cited By ~ 11

Author(s):

Ljiljana Gulan ◽

Biljana Milenkovic ◽

Jelena M. Stajic ◽

Biljana Vuckovic ◽

Dragana Krstic ◽

...

Keyword(s):

Heavy Metal ◽

Metal Content ◽

Heavy Metal Content ◽

The North ◽

Radioactivity Levels

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Macophyte cycling of zinc, copper, lead and cadmium in the littoral zone of a polluted and a non-polluted lake. II. Seasonal changes in heavy metal content of above-ground biomass and decomposing leaves of Phragmites australis (Cav.) Trin.

Aquatic Botany ◽

10.1016/0304-3770(81)90062-0 ◽

1981 ◽

Vol 11 ◽

pp. 211-230 ◽

Cited By ~ 51

Author(s):

Vagn Juhl Larsen ◽

Hans-Henrik Schierup

Keyword(s):

Heavy Metal ◽

Phragmites Australis ◽

Seasonal Changes ◽

Littoral Zone ◽

Metal Content ◽

Heavy Metal Content ◽

Above Ground Biomass ◽

Lead And Cadmium ◽

Polluted Lake ◽

Copper Lead

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Inﬂuence of environmental and geographical factor on the heavy metal content in the lungs of Hereford cattle

Siberian Herald of Agricultural Science ◽

10.26898/0370-8799-2021-5-10 ◽

2021 ◽

Vol 51 (5) ◽

pp. 83-90

Author(s):

K. N. Narozhnykh

Keyword(s):

Heavy Metal ◽

Metal Content ◽

Heavy Metal Content ◽

Reference Ranges ◽

Geographical Factor ◽

Lead And Cadmium ◽

Novosibirsk Region ◽

Hereford Cattle ◽

Cadmium Lead ◽

Iron And Manganese

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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Heavy Metal Content and Physico-Chemical Analyses of Soils under the Litter of some Medicinal Taxa in the Luki Biosphere Reserve, Democratic Republic of the Congo

Asian Journal of Environment & Ecology ◽

10.9734/ajee/2021/v14i330208 ◽

2021 ◽

pp. 19-35

Author(s):

Florent Biduaya Mukeba ◽

Myriam Mukadi Ngondo ◽

Nazaire Kabemba Kadima ◽

Prince Bofati Ilonga ◽

Patrick Kayembe Bibasuya ◽

...

Keyword(s):

Heavy Metal ◽

Organic Matter ◽

Metal Content ◽

Organic Matter Content ◽

Biosphere Reserve ◽

Matter Content ◽

Heavy Metal Content ◽

Significant Difference ◽

Canadian Council ◽

Cadmium Lead

Aim: The aim of this study was to compare the texture, mineral element and heavy metal content of the soil under the litter of different selected species in relation to the plan of their pedogenesis. Methods: The granulometric analysis of the various samples based on laser diffraction, measurements of Total Nitrogen and Total Organic Carbon were performed using the Elemental Analyzer, the Organic Matter content is estimated by the loss of ignition method using a Salvis furnace, In order to estimate the CaCO3 content. The same samples were heated in the oven at 1000°C for 60 minutes and reweighed. The carbonate content is estimated by the loss in mass during this second firing, multiplied by 2.274 which is the molecular weight ratio between CaCO3 and CO2. The heavy metal and mineral composition was evaluated by ICP-AES and AAS. Results: The granulometric analyses show a sandy texture, according to the FAO classification. The organic matter content thus observed in the soils under the litter of these four species did not show any significant difference. The concentration of major mineral elements recorded in soils under the litter of Blighia welwitchii, Oncoba welwitschii, Zanthoxylum gilletii and Harungana madagascariensis did not show any significant difference. However, potassium, phosphorus, and magnesium have a high concentration compared to calcium and sodium. This study showed that the levels of cadmium, lead, arsenic and aluminum in the various samples of litter soils of all plant species including nickel for B. welwitschii are above the standards set by the Canadian Council of Ministers of the Environment for soil quality. Pollution factors for aluminum are the highest. This indicates that aluminum is the most polluting metal. The low pollution factors for lead and nickel are due to the low fixation of these metals by soils. Conclusions: Our study took place in the Luki Biosphere reserve and showed that the different soils under litter are polluted by very toxic and persistent heavy metals such as cadmium, lead, aluminum, arsenic and nickel. This study has revealed new aspects of heavy metal pollution. This pollution represents a serious threat to the environment in general and to humans in particular through the food chain.

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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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