In order to investigate concentrations, variability, sources, and human health risk of trace elements, 38 atmospheric dust samples were collected around Arak industrial area. The average concentrations Cd~Zn, As, Pb 3.3, 2.5, 2.4 times higher than the corresponding geochemical background, respectively, while Co, Cu, Ni, Hg lower. Based on geo-accumulation index (Igeo), elements classified betwe...

Background: Soil and sediment serve as major reservoir for contaminants as they possess ability to bind various chemicals together. In this study the concentrations of heavy metals Cd, Cr and Cu were analyzed in surface sediments of Agh Gel Wetland in west of Iran. Methods: The sediment samples were taken from 10 stations. The samples were subjected to bulk digestion and chemical partitionin...

This study aims at determining the level of pollution heavy metals (Cr, Cu and Hg) in soils illegal mining sites Atiwa East District Ghana. The concentrations Copper (Cu), Chromium (Cr), Mercury (Hg) were determined using Atomic Absorption Spectrometry (AAS). extent metal risk assessment was analyzed site. Thirty (30) soil samples collected from three (3) within district. average levels Cu, Cr,...

It is a well–known fact that heavy metal pollution in sediments causes serious problems not only the Danube basin, but also large and small adjacent river streams. A suitable method for assessing level of metals their toxicity calculation indices. The present research aims to assess Lower surface collected along course (between 180 60 km) up point where River flows into Delta Biosphere Reserve ...

The current paper determines heavy metals in sediments of six freshwater wetlands of greater Dhaka district from November 1999 to September 2000. The sampling took place in summer, rainy season, and winter, wherein for each season five soil samples were collected from the wetland at a depth of 0 – 15 cm. To assess the status of heavy metal pollution in the sediments, geo-accumulation factor (Ig...

The current paper determines heavy metals in sediments of six freshwater wetlands of greater Dhaka district from November 1999 to September 2000. The sampling took place in summer, rainy season, and winter, wherein for each season five soil samples were collected from the wetland at a depth of 0 – 15 cm. To assess the status of heavy metal pollution in the sediments, geo-accumulation factor (Ig...

Data dealing with the assessment of heavy metal pollution in road dusts in Jeddah, Saudi Arabia and its implication to human health risk of human exposure to heavy metals, are scarce. Road dusts were collected from five different functional areas (traffic areas (TA), parking areas (PA), residential areas (RA), mixed residential commercial areas (MCRA) and suburban areas (SA)) in Jeddah and one ...

Surface sediment samples were collected from different streams of Awetu Watershed in southwestern Ethiopia. Sediment analyzed for As, Cd, Cr, Pb, and Hg levels using inductively coupled plasma optical emission spectrometry. The heavy metal concentration ranged 183.60 to 1,102.80 mg/kg As (mean 623.32 ± 291.65 mg/kg), 4.40–303.20 Cd (151.09 111.5 149.20–807.20 Cr (375 212.03 485.60–3,748.80 Pb (...

<p>The increasing industrialization and urbanization in recent times has led to a significant increase heavy metal pollution soil sediment. The present study aims evaluate the contamination (HmC) surface sediments collected from Kosasthalaiyar River located between latitudes 13°12′03″N 13°16′34″N longitudes 80°18′6″E 80°19′56″E. Ten sampling locations were selected area samples of analyze...

Introduction. Urban runoff sediments contain heavy metals that generate risk to the environment. Several assessment indexes for have been developed, which show level of contamination particles in environment and their origin. Besides, sediment is also associated with particle size distribution hydrometeorological characteristics. Objective. This work seeks evaluate from collected an experimenta...