scholarly journals Mosses accumulate heavy metals from the substrata of coal ash

2005 ◽  
Vol 57 (2) ◽  
pp. 101-106 ◽  
Author(s):  
Vanja Vukojevic ◽  
Marko Sabovljevic ◽  
S. Jovanovic
Keyword(s):  
Heavy Metals ◽  
Coal Ash ◽  
Disposal Site ◽  
Moss Species ◽  
Manganese Zinc ◽  
Iron And Zinc ◽  
High Concentrations ◽  
Iron Manganese ◽  
Ash Disposal

Plants that are able to accumulate and tolerate extraordinarily high concentrations of heavy metals (hyperaccumulators) can be used for phytoremediation (removal of contaminants from soils) or phytomining (growing a crop of plants to harvest the metals). Two moss species, Bryum capillare Hedw. and Ceratodon purpureus Hedw., were tested as potential phytoremedies under in vivo conditions on a coal ash disposal site in the surroundings of Obrenovac (NW Serbia). The content of various heavy metals (iron, manganese zinc, lead, nickel, cadmium, and copper) in the mosses and substrata were investigated over a period of three years. Iron and zinc were found to have the highest concentration in the mosses.

scholarly journals Quantification of heavy metals in canned tomato paste sold in Ubani-Umuahia, Nigeria

2019 ◽  
Vol 28 ◽  
pp. 1-11
Author(s):  
RI Uroko ◽  
VE Okpashi ◽  
NE Etim ◽  
AC Fidelia
Keyword(s):  
Heavy Metals ◽  
Human Health ◽  
Daily Intake ◽  
Dietary Exposure ◽  
Nickel Iron ◽  
Private Organization ◽  
Important Health ◽  
Iron And Zinc ◽  
High Concentrations ◽  
Predictive Risk

In recent years there has been an increase in the contaminations of heavy metals on the environment. Government and private organization have shown their interest in the effect of dietary exposure to several heavy metals. These heavy metals have been implicated in the etiology of many diseases with high risk to humans. Canned tomatoes paste is one of the important health deterioting factors to human health in Ubani-Umuahia, Nigeria. In this study atomic absorption spectrophotometer was used to screen for nine heavy metals concentration in ten different brands of canned tomatoes paste sold at Ubani-Umuahia market in Nigeria. Human risk assessment was calculated using the collated data to evaluate the predictive risk of human health after the consumption of canned tomatoes paste. Results shows that lead and nickel were not detected in all the canned tomatoes. In comparison low concentrations of copper, iron, and manganese were notated but high concentrations of chromium and cadmium were detected in all the tested tomatoes pastes. Cobalt and zinc concentration was notated lower than permissible limit. The daily intake of copper, cobalt, manganese, chromium, cadmium, nickel, iron, zinc and lead were below their tolerable values in canned tomatoes. The predicted lifetime for carcinogens to occur was less than one (<1). Copper, cobalt, iron, and zinc were below the acceptable value for non-cancer risk with HQ <1.The risk of incurring cancer by ingesting canned tomatoes was within the lifetime predicted a range of (1.0E-6 to 1.0E-4). Finds suggest that prolong and persistent consumption of these heavy metals may cause toxicity and consequential heath challenges. J. bio-sci. 28: 1-11, 2020

Precipitation Loading of Acid and Heavy Metals to a Small Acid Lake near Sudbury, Ontario

1977 ◽  
Vol 34 (5) ◽  
pp. 649-658 ◽  
Author(s):  
R. J. Beamish ◽  
J. C. Van Loon
Keyword(s):  
Heavy Metals ◽  
Lake Sediments ◽  
Lake Water ◽  
Atmospheric Fallout ◽  
Annual Change ◽  
Bulk Precipitation ◽  
Ph Change ◽  
Manganese Zinc ◽  
Measured Change ◽  
High Concentrations

The pH of Lumsden Lake was closely related to the measured amount of acid entering the lake from bulk precipitation. In 1972 it was estimated that an excess of 2135 kg of H2SO4 was added to the lake from the atmosphere. The predicted annual change in lake pH was from 5.2 to 4.8 and the actual measured change was from 5.2 to 4.7. In 1973 an estimated excess of 1271 kg of H2SO4 was added to the lake from the atmosphere. The predicted annual pH change was from 4.8 to 4.7 and there was no net change in the lake pH in 1973.Lumsden Lake also had high concentrations of sulfate, manganese, zinc, and nickel in comparison with remote or "unpolluted" lakes. High concentrations of manganese and possibly some zinc in the lake appeared to result from increased mobilization from the lake sediments or watershed or both as the pH decreased. Atmospheric fallout also contributed substantial quantities of nickel and copper to the watershed, some of which appeared to be retained in the lake water. The high concentrations of lead in the precipitation were not retained in the lake.

scholarly journals State of the Kozmin and Wrangel Bays (Peter the Great Bay, Japan Sea): dynamics of pollution with heavy metals

2015 ◽  
Vol 180 (1) ◽  
pp. 179-186
Author(s):  
Nadezhda K. Khristoforova ◽  
Olga A. Gamayunova ◽  
Andrey P. Afanasyev
Keyword(s):  
Heavy Metals ◽  
Peter The Great Bay ◽  
Japan Sea ◽  
Saccharina Japonica ◽  
Similar Data ◽  
Manganese Zinc ◽  
Peter The Great ◽  
Great Bay ◽  
Nha Trang Bay ◽  
Iron Manganese

Pollution with heavy metals, as iron, manganese, zinc, copper, lead, nickel, and cadmium is considered for the coastal waters in two bights of Peter the Great Bay on the data of the metals content in tissues of the algae Sargassum miyabei and Saccharina japonica . The Fe and Mn indicate terrigenous runoff, the Zn and Cu - anthropogenic impact, and the Pb, Ni, and Cd are the tracers of industrial pollution. The content of Fe is the highest among heavy metals; its maximum concentrations are found in the top of the Kozmin Bay and at Cape Petrovsky in the Wrangel Bay. The Pb and Cd contents are higher at the small boats berthing in the Kozmin Bay. The Ni content is the highest (up to 4 mg/g) on reefs in front of the oil terminal in the Wrangel Bay and in the top of the Kozmin Bay that is possibly reasoned by shipping activity because Ni is included in all oils. The Zn concentration is the highest at the pier in the Wrangel Bay constructed of stone blocks. The contents of heavy metals in algae from these bights are compared with similar data from the Avachinsky Bay (Kamchatka), Nha-Trang Bay (Vietnam) and port Santos (Brazil); relatively high pollution of the Kozmin and Wrangel Bays by Pb is revealed. Pollution in these bights has mostly industrial and anthropogenic nature. The pollution with Ni and Cd decreased between 1995 and 2008, but became higher again in 2012-2013, the pollution with Mn, Zn and Fe also increased in 2012-2013.

scholarly journals AAS DETECTION OF HEAVY METAL IN SHEEP CHEESE (THE BANAT AREA, ROMANIA)

1970 ◽  
Vol 62 ◽  
Author(s):  
I. Gogoaşă ◽  
I. Gergen ◽  
Maria Rada ◽  
D. Parvul ◽  
Camelia Ciobanu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Graphite Furnace ◽  
Absorption Spectrometry ◽  
Essential Elements ◽  
Manganese Zinc ◽  
Lead And Cadmium ◽  
Nickel Chromium ◽  
Low Concentrations ◽  
Iron Manganese

. In this paper we present results of the measurement of some heavy metals in sheep cheese samples from three hill and alpine areas in the Banat area. We analysed, using flame and graphite furnace atomic absorption spectrometry, the following heavy metals: Fe, Mn, Zn, Cu, Co, Ni, Cr, Pb, and Cd. The concentration ranges in the cheese samples were: 7.22-8.85, 1.36-1.83, 17.39-23.17, 0.691-0.886, 0.020-0.102, 0.002-0.010, 0,214-0.225, 0.193-0.314 and 0.001-0.003 mg/kg for iron, manganese, zinc, cooper, cobalt, nickel, chromium, lead and cadmium, respectively. Analysing experimental data shows that the specific soil and climate factors in the area favour cheese assortments with normal heavy metal contents under the form of essential elements and of low concentrations of heavy metals potentially toxic or toxic much below admitted toxicity levels.

Processes controlling the variations of pH, alkalinity, and CO2 partial pressure in the porewater of coal ash disposal site

2010 ◽  
Vol 181 (1-3) ◽  
pp. 74-81 ◽  
Author(s):  
Kangjoo Kim ◽  
Seok-Hwi Kim ◽  
Sung-Min Park ◽  
Jinsam Kim ◽  
Mansik Choi
Keyword(s):  
Partial Pressure ◽  
Coal Ash ◽  
Disposal Site ◽  
Co2 Partial Pressure ◽  
Ash Disposal

Arsenic concentration in porewater of an alkaline coal ash disposal site: Roles of siderite precipitation/dissolution and soil cover

Chemosphere ◽  
2009 ◽  
Vol 77 (2) ◽  
pp. 222-227 ◽  
Author(s):  
Kangjoo Kim ◽  
Sung-Min Park ◽  
Jinsam Kim ◽  
Seok-Hwi Kim ◽  
Yeongkyoo Kim ◽  
...  
Keyword(s):  
Soil Cover ◽  
Arsenic Concentration ◽  
Coal Ash ◽  
Disposal Site ◽  
Siderite Precipitation ◽  
Ash Disposal

scholarly journals Concentration of heavy metals - iron, manganese, zinc and copper in mosses

2015 ◽  
Vol 43 (1) ◽  
pp. 39-44 ◽  
Author(s):  
K. Czarnowska ◽  
I. Rejmont-Grochowska
Keyword(s):  
Heavy Metals ◽  
Iron Content ◽  
Vascular Plants ◽  
Copper Content ◽  
Distinct Difference ◽  
Weakly Acid ◽  
Acid Ph ◽  
Manganese Zinc ◽  
Iron Manganese

The iron content in gametophytes of <i>Aulacomnium palustre. Climacium dendroides, Catharinea undulata</i> is 5—10 times higher than in vascular plants. The manganese, zine and copper content is 2-3 times higher than in vascular plants. The content of these elements in sporophytes of <i>Catharinea undulata</i> is approximately the same as in vascular plants. The accumulation of the investigated metals takes place mainly in the protoplasts of the chlorophyll cells of gametophyte leaves. A weakly acid pH of the medium favors accumulation. No distinct difference was found between the Fe<sub>2</sub>O<sub>3</sub> content in mosses and the soil.

scholarly journals Mobilization of colloids in groundwater due to infiltration of water at a coal ash disposal site

1990 ◽  
Vol 6 (4) ◽  
pp. 307-320 ◽  
Author(s):  
Philip M. Gschwend ◽  
Debera A. Backhus ◽  
John K. MacFarlane ◽  
A.L. Page
Keyword(s):  
Coal Ash ◽  
Disposal Site ◽  
Ash Disposal
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