Heavy Metals in Forest Soils, Vegetation, and Drainage Waters in the Basin of Mexico

2002 ◽  
pp. 194-221
Author(s):  
Mark E. Fenn ◽  
Juana María Castro-Servín ◽  
Tomás Hernández-Tejeda ◽  
Natalie Krage ◽  
Chris Goodson ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Forest Soils ◽  
Basin Of Mexico ◽  
Drainage Waters

Removal of heavy metals, arsenic and uranium from model solutions and mine drainage waters

2005 ◽  
pp. 399-408
Author(s):  
Gunnar Horak ◽  
Christian Lorenz ◽  
Karsten Steudel ◽  
Sabine Willscher ◽  
Wolfgang Pompe ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Mine Drainage ◽  
Model Solutions ◽  
Removal Of Heavy Metals ◽  
Drainage Waters

scholarly journals Content of Zn, Cd and Pb in purple moor-grass in soils heavily contaminated with heavy metals around a zinc and lead ore tailing landfill

2018 ◽  
Vol 16 (1) ◽  
pp. 1143-1152 ◽  
Author(s):  
Marcin Pietrzykowski ◽  
Jacek Antonkiewicz ◽  
Piotr Gruba ◽  
Marek Pająk
Keyword(s):  
Heavy Metals ◽  
Forest Soils ◽  
Vascular Plants ◽  
Field Observations ◽  
Molinia Caerulea ◽  
Regular Monitoring

AbstractThe paper presents concentrations and correlations between Zn, Cd and Pb in the aboveground parts of purple moor-grass (Molinia caerulea L.) in forest soils heavily contaminated with heavy metals around a zinc and lead ore tailing landfill at Mining & Metallurgy Enterprise “Bolesław” SA in Bukowno. Field observations have indicated that purple moor-grass, which occurs as one of the few vascular plants in locations with tailing mud, is probably a species with high adaptability to conditions in contaminated environments. The research was carried out in a network of 20 regular monitoring sites. At these sites, a detailed inventory of purple moor-grass was carried out and samples of the aboveground parts of the plants were collected from the leaves and ears and from the soil at a depth of 0-20 cm. It was found that there was no significant correlation between the concentration of heavy metals in the soils and aboveground parts of the plants in the most heavily contaminated zones. This may indicate the existence of mechanisms limiting uptake of heavy metals by this species, and therefore the need for further research in the context of its suitability for biological regeneration of tailing landfills and phytosanitary protection of adjoining areas.

Calculation and mapping of critical loads for heavy metals and persistent organic pollutants for Dutch forest soils

1998 ◽  
Vol 61 (1-3) ◽  
pp. 99-106 ◽  
Author(s):  
W de Vries ◽  
D.J Bakker ◽  
J.E Groenenberg ◽  
G.J Reinds ◽  
J Bril ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
Forest Soils ◽  
Critical Loads

Distribution and ecological risk assessment of 7 heavy metals in urban forest soils in Changsha City

2012 ◽  
Vol 32 (23) ◽  
pp. 7595-7606 ◽  
Author(s):  
方晰 FANG Xi ◽  
唐志娟 TANG Zhijuan ◽  
田大伦 TIAN Dalun ◽  
项文化 XIANG Wenhua ◽  
孙伟军 SUN Weijun
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Ecological Risk ◽  
Ecological Risk Assessment ◽  
Forest Soils ◽  
Urban Forest ◽  
Changsha City

Rust precipitates in drainage systems of peaty acid sulphate soils in Finland

2020 ◽  
Author(s):  
Markku Yli-Halla ◽  
Jarkko Kekkonen ◽  
Timo Lötjönen ◽  
Hannu Marttila
Keyword(s):  
Heavy Metals ◽  
Humic Substances ◽  
Iron Hydroxide ◽  
Iron Concentration ◽  
Drainage Water ◽  
Drainage Systems ◽  
Acid Sulphate ◽  
Dissolved Iron ◽  
The Mean ◽  
Drainage Waters

<p>Clogging of subsurface pipe drainage systems by rust precipitates is a problem in many cultivated areas and especially on the coast of Ostrobothnia, northwestern Finland. The subsurface drainage pipes need to be flushed every few years to remove the rust, which causes additional maintenance costs. These problems are particularly common in acid sulphate (AS) soils that have peat horizons on top of sulfidic materials. These soils are often wet, and the drainage water contains high dissolved iron concentration, commonly above 20 mg l<sup>-1</sup>. Reducing conditions prevail in certain horizons and oxidation of sulfidic minerals and low pH are typical of the horizons above, all resulting in mobilization of several elements. Upon entering the aerobic drainage pipe dissolved iron is oxidized and readily precipitates as rust. In dry summers, the precipitate is typically hardened and the whole pipe drainage system can be blocked. Minerals containing sulphur (S) may also be precipitated in the pipes. The fresh precipitates can adsorb heavy metals that occur in substantial concentrations in AS drainage waters. In this study, 10 rust samples were collected from ditches and wells. All sites, except one, had a 20-70 cm peaty topsoil. A comprehensive chemical analysis was carried out and the precipitates were investigated with a scanning electron microscope (SEM). Colours of the samples were strong brown or reddish yellow (Munsell notation 7.5YR 5/6-6/8). Silicon content was only 0.3-0.9%, indicating the absence of actual soil material in the precipitates. The material contained 27-49% organic matter (1.9 x C), co-precipitated from the humic substances of drainage water. Iron was by far the most abundant element. If all Fe is contained in ferrihydrite (66% Fe), this mineral constituted 35-63% (mean 46%) of the precipitate while aluminium hydroxide (34% Al) constituted 0.7-9% (mean 5%). Even though most drainage waters were rich in S (commonly above 40 mg l<sup>-1</sup>, the maximum S concentration of the precipitates was only 1.9% and the mean at 0.7%. Sulphur-containing minerals jarosite and schwertmannite were not detected in the SEM images, either, suggesting that these minerals are not precipitated from AS drainage waters. Dissolved heavy metals are leached from AS soils but they were not markedly co-precipitated in our samples. The mean concentration of Cd was only 1 mg kg<sup>-1</sup> and Ni 12 mg kg<sup>-1</sup>, Cr 33 mg kg<sup>-1</sup>, Cu and Zn 32 mg kg<sup>-1</sup> while Mn was more abundant, 355 mg kg<sup>-1</sup>. In our peaty AS soils there is thus substantial mobilization of Fe and a flux out of the soil and a new solid phase is formed in the drainage pipes and ditches constituting mostly of iron hydroxide and humic substances. If dredged, application of this material onto the fields seems not to pose major environmental hazards.</p>

Diversity of microorganisms from forest soils differently polluted with heavy metals

2013 ◽  
Vol 64 ◽  
pp. 7-14 ◽  
Author(s):  
Marcin Chodak ◽  
Marcin Gołębiewski ◽  
Justyna Morawska-Płoskonka ◽  
Katarzyna Kuduk ◽  
Maria Niklińska
Keyword(s):  
Heavy Metals ◽  
Forest Soils

scholarly journals Heavy metals in pastureland soils situated in A Pastoriza (NW Spain) treated with cattle slurry and NPK fertilizers

2015 ◽  
Vol 5 ◽  
Author(s):  
Natalia Seco-Reigosa ◽  
María J. Fernández-Sanjurjo ◽  
Avelino Núñez-Delgado ◽  
Laura Cutillas-Barreiro ◽  
Antía Gómez-Armesto ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Forest Soils ◽  
Soil Depth ◽  
Available P ◽  
Cattle Slurry ◽  
Nw Spain ◽  
Npk Fertilizers ◽  
Pasture Production ◽  
Total Concentrations

In Galicia (NW Spain), pasturelands cover a broad extension and are mainly used to feed cattle. Farms are managed in an intensive manner, using cattle slurry and inorganic fertilizers to increase pasture production, but also increasing risks of heavy metal pollution. In this work we studied the influence of fertilization practices on total concentrations and in-depth distribution of heavy metals and related elements (As, Cd, Cr, Cu, Mn, Ni, Pb and Zn) in two forest soils (SN1, SN2) and five pastureland soils (P1-P5) fertilized with cattle slurry and NPK, in a broadly exploded farmland area (A Pastoriza, Lugo). Soils SN2 and P4 were developed over slate, whereas soils SN1, P1, P2, P3 and P5 evolved on Candana quartzite. Forest soils presented acid pH (4.58-4.68), high Al saturation (75-90%), and low available P concentration (4.78-11.96 mg kg<sup>-1</sup>), whereas those parameters exhibited better scores in the pastureland soils, due to previous amendment and fertilization practices, thus giving pH 5.17-7.02, Al saturation 0.58-59.24%, and available P 5.24-42.07 mg kg<sup>-1</sup>. Regarding heavy metals, soil depth did not affect significantly to total concentrations, contrary to that happening with parent material, with higher As, Cu, Fe, and Ni concentrations found in soils over slate (possibly due to the presence of pyritic materials). In most cases, heavy metal total concentrations were lower than that considered as reference background levels for soils developed over each of the parent materials, and were always lower than that considered phyto-toxic. In this study, natural soils usually presented heavy metal total contents similar or even higher than that of the fertilized soils (unless Zn in the P4 pastureland), thus indicating that the spread doses of fertilizers did not influence significantly their concentration levels.

Geochemical and Spatial Distribution of Heavy Metals in Forest Soils Adjacent to the Tinovul Mare Poiana Stampei Peat Bog

2018 ◽  
Vol 69 (2) ◽  
pp. 434-438 ◽  
Author(s):  
Bogdan Constantin Cazacu ◽  
Nicolae Buzgar ◽  
Ovidiu Gabriel Iancu
Keyword(s):  
Heavy Metals ◽  
Spatial Distribution ◽  
Forest Soils ◽  
Fluorescence Spectrometry ◽  
Peat Bog ◽  
X Ray ◽  
Northern Group ◽  
High Concentrations ◽  
Alert Threshold

Tinovul Mare Poiana Stampei is situated in the northern group of the Oriental Carpathians within the Dornelor Depression, one of the richest peat areas in Romania. In this study we have performed analyses of certain heavy metals (Cr, Co, Ni, Cu, Zn, Pb, As and Cd) found in the forest soils adjacent to the Tinovul Mare Poiana Stampei peat bog. The analyses performed through X-ray fluorescence spectrometry indicated the following variation limits (mg/kg): Cr: 20-66; Co: 8-29; Ni: 16-78; Cu: 16-42; Zn: 36-199; Pb: 21-229; As: 5.5-36 and Cd: 0.01-1.4. The outcomes of the present study indicate high concentrations for certain (Ni, Pb and As). These concentrations exceed the alert threshold established by the Romanian Law, according to Order no. 756 of November, 3rd 1997.

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