Contributions To The Study Of Heavy Metals Concentration Variation In Sedimentable Dusts According To The Distance From The Pollution Source

Abstract

The environment in areas where geological and mining activities, such as the extraction of ores containing heavy metals, take place, is heavily polluted with dusts resulting from these activities, as well as with residual waters from the mines. Depending on the meteorological conditions, as well as on the conditions under which sedimentable dusts or dusts in suspension are emitted into the air, the distance from the main pollution source varies considerably. In order to estimate the pollution level and the danger presented by this phenomenon, some analyses are required with regard to determining the concentration of heavy pollutant metals in air, soil and plants samples, as well as in dusts from the air. For the precise determination of the major components, as well as the minor ones, and also the ones in traces, the analytical techniques used must have low detection limits and the lowest matrix effects possible [1,2]. The methods that respond to these requirements are from the category of inductively coupled plasma atomic emission spectrometry (ICP-AES). The research was done in an area where there are industrial units whose main field of activity is extraction of certain ores which contain Pb, Cu and Zn as major components, as well as Cr, Mn, Ni, Co, Ag, Au, Al, and Fe as minor components or in traces. It is obvious that the presence of these metals in the air, water and soil has a negative impact on human health, plants and animals. This paper is a study of these aspects in an area where pollution with heavy metals reaches alarming quotas

Evaluation of Zinc Accumulation in Moss (Pylaisia polyantha) Growing Near Intensive Traffic Street Based on Modelling and Experimental Data

“…The pollutant emissions are transported to different distances, depending on the geographic area, its geology and the local meteorological factors: fog, wind, rains, thermal inversions (Dobra et al 2006). The climate of Vilnius region is considered as humid continental or hemiboreal by Köppen climate classification.…”

Spatial and Multivariate Analysis of Trace Elements in the Surface Water and Deep Sediments of Fresh Water Aquatic Ecosystem

“…This may lead to Science Publications AJES serious changes in water quality because of the continuous interactions that commonly occur at the sediment-water interface (Barreto et al, 2008;Comero et al, 2014;Garizi et al, 2011). Different natural and artificial sources of pollution can pollute the environment with heavy metals (Dobra et al, 2006). Nagarjuna Sagar Dam (NS Dam) built on the river krishna is the tallest masonry dam globally, with a maximum height of 124.7 m at the deepest portion of the river valley.…”

Uptake of Heavy Metals by <i>Jatropha curcas</i> L. Planted in Soils Containing Sewage Sludge

“…In areas with high soil concentrations of minerals, they often are also contaminated with heavy metals. The sources of the enrichment of metal in the soil include sewage sludge, incinerators, fertilizers, urban compost and mining residues (Adhikari et al, 2004;Dobra et al, 2006;Patel and Pandey, 2009). Sewage sludge can be described as the solid waste products from wastewater treatments, mining residues and agricultural waste.…”