Influence of Heavy Metals and Arsenic on Survival and Biofilm Formation of Some Saprotrophic Soil Microorganisms

2021 ◽  
Vol 232 (8) ◽  
Author(s):  
V. A. Bybin ◽  
G. A. Belogolova ◽  
Yu. A. Markova ◽  
M. G. Sokolova ◽  
A. V. Sidorov ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Biofilm Formation ◽  
Soil Microorganisms ◽  
Heavy Metals And Arsenic

HEAVY METALS AND ARSENIC CONTAMINATION IN LA BARRA DE SANTIAGO ESTUARY, EL SALVADOR

2019 ◽  
Author(s):  
Dina L. López ◽  
◽  
Abiodun E. Ayo-Bali ◽  
Mauricio Vasquez Jandres ◽  
Benancio Henriquez Miranda
Keyword(s):  
Heavy Metals ◽  
El Salvador ◽  
Arsenic Contamination ◽  
Heavy Metals And Arsenic

Distribution of Heavy Metals and Arsenic in Greenbelt Roadside Soils of Pudong New District in Shanghai

2009 ◽  
Vol 18 (6) ◽  
pp. 702-714 ◽  
Author(s):  
H. L. Fang ◽  
Y. Dong ◽  
B. Gu ◽  
G. J. Hao ◽  
Z. W. Lv ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Roadside Soils ◽  
Heavy Metals And Arsenic

scholarly journals Chemical residuality in maize (Zea mays L.) fields irrigated with deep well water

2018 ◽  
Vol 5 (13) ◽  
pp. 111
Author(s):  
Ma. Elizabeth Azpilcueta-Pérez ◽  
Aurelio Pedroza Sandoval ◽  
Ricardo Trejo-Calzada ◽  
Ignacio Sanchez-Cohen ◽  
María Del Rosario Jacobo-Salcedo
Keyword(s):  
Heavy Metals ◽  
Zea Mays ◽  
Zea Mays L ◽  
Residual Analysis ◽  
Maize Plant ◽  
Well Water ◽  
Deep Well ◽  
Fodder Production ◽  
Heavy Metals And Arsenic

The aim was to conduct a residual analysis of the main cationic elements, heavy metals and arsenic in irrigated maize fodder production. Four soil and maize plant samplings were conducted in eight sites in April, May, June and July, 2014. Ca, Na, As, and Pb concentrations were higher in the soil. The As concentration was higher in June and July. La Purísima had a higher As concentration, while Bermejillo, La Galicia and La Rosita had a higher Ca concentration. K, Ca, Pb and Zn had higher concentrations in the maize plant, with Ca, Na and K having highervalues in July and Mg, Pb and Zn being higher in May and July. The content of Ca, Mg, Na and K did not dier among regions; arsenic was higher in Leon Guzmán and La Rosita.

scholarly journals The influence of soil microorganisms on heavy metal content in the substrate of waste rock dumps

2021 ◽  
Vol 31 ◽  
pp. 00017
Author(s):  
Natalia Makeeva ◽  
Olga Neverova
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Content ◽  
Soil Microorganisms ◽  
Accumulation Rate ◽  
Heavy Metal Content ◽  
Waste Rock ◽  
Soil Reclamation ◽  
The Impact ◽  
Concentration Limits

The environmental effects of mining and its impact on natural resources are of a holistic nature. One of the modern methods employed for the remediation of technogenically disturbed soils is the application of microorganisms. This paper studies the impact made by soil microorganisms on the accumulation rate of heavy metals in the substrate of waste rock dumps in the process of soil reclamation. Suspensions of soil microorganisms (microorganisms utilising mineral nitrogen forms / MUMN; microorganisms decomposing silicates / MDS; microscopic fungi / MF) were applied to the rock dump surface. Separate groups as well as their combinations were applied. The heavy metal content analysis did not indicate a significant exceedance of the maximum allowable concentration limits (MACL) in the soil of the waste rock. The only metal whose content exceeded the maximum admissible concentration limits was nickel. It has found that the application of microorganisms influences the concentration of several heavy metals due to pH level changes of the rock dump soil.

Establishing the limits of the permissible content of chemical elements in the wool of representatives of the family Hamster Cricetidae using centile scales

2020 ◽  
Vol 1 (9) ◽  
pp. 72-77
Author(s):  
M. V. Stepanova ◽  
◽  
V. A. Ostapenko ◽  
Keyword(s):  
Heavy Metals ◽  
Copper Content ◽  
Chemical Elements ◽  
Federal District ◽  
The Body ◽  
Average Content ◽  
Absorption Method ◽  
Opposite Trend ◽  
The Family ◽  
Heavy Metals And Arsenic

The aim of the study was to study the content of some heavy metals and arsenic in members of the Cricetidae family of hamsters and to develop centile scales for assessing the level of accumulation of these elements for the Central Federal District. In 2018–2020, hamster`s wool was studied for the accumulation of zinc, copper, iron, lead, cadmium and arsenic by the atomic absorption method. The data on the characteristics of the content of chemical elements in different sexes of animals are given. In the course of the study, it was found that, according to the value of the average content in the wool of animals of the family, the studied elements form the following decreasing series: Fe> Zn> Pb> Cu> Cd> As. When studying the features of the accumulation of chemical elements by different sexes, a significant increase in the concentration of zinc, iron, cadmium and arsenic in the wool of males was established, compared with females, depending on the species, from 1,38 to 3,98; from 1,28 to 1,52; from 2,00 to 304,00 times, respectively. With regard to the accumulation of copper in the body, the opposite trend is observed. In females, its concentration is 1,5–3,19 times higher. In the studied sample of animals, an increase in copper content was revealed in 44,83% of individuals and a decrease in cadmium in 44,82%.

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