Fresh water scarcity is considered a significant component, and potentially one of the most critical, global climate change. With rapid development industry, there an increasing risk freshwater contamination by heavy metals (HMs). The danger HM pollution also attributed to their accumulation, which can subsequently become source secondary in aquatic environments. In Lake Gusinoe basin, located ...

the contents of as, cd, cu and mo were determined in soil surrounding meyduk tailings dam based on 21 surface soil samples. assessment of toxic element pollution in studied soil samples needs knowledge of pre-anthropogenic metal concentration to act as a reference against which measured values could be compared. estimating the background values was executed by sampling rocks adjacent to soil sa...

Water and sediment samples were collected from six different stations, located along the Nil River between February and June 2015. Concentrations of cadmium, lead, zinc, and copper were determined. The extent of the sediment pollution was assessed, using the multiple pollution indices, namely contamination factor (CF), pollution load index (PLI), and the geoaccumulation index (Igeo). The result...

This article aims to analyze the contamination of water and bottom sediment at Arroio Moinho (Mill Stream), in Porto Alegre (Rio Grande do Sul, Brazil). From two sample collections, a series diagnostic measurements were carried out, such as: a) physical-chemical biological analysis water; b) quality index (WQI); c) metal contamination, granulometric mineralogical analyses sediment; d) total org...

Pollution of river bottom sediments with heavy metals (HMs) has emerged as a main environmental issue related to intensive anthropopressure on the water environment. In this context, risk harmful effects HMs presence in Warta River, third longest Poland, been assessed. The concentrations Cr, Ni, Cu, Zn, Cd, and Pb collected at 24 sample collection stations along whole length have measured analy...

The accumulation of tailings from gold mining and smelting may result in PTE pollution. We investigated contamination a large amalgamated mine pond Pinggu County, Beijing. In November 2017, 30 soil samples were collected around the pond. concentrations pollution degree PTEs sources Sb, As, Cd, Cu, Pb, Zn Hg analyzed. average concentration these elements near (16.24, 28.29, 0.99, 171.04, 263.25,...

The contamination of soil with toxic metals poses serious threats to the survival living organisms including humans. We determined levels cadmium (Cd), chromium (Cr), copper (Cu), lead (Pb) and nickel (Ni) in samples from a typical agrarian Nigeria, using various single complex geochemical indices along principal component analysis (PCA) for source determination. Ten (S1-S10) were collected dep...

Abstract This article discussed on the status of heavy metals (As, Cr, Cu, Mn, Ni, Pb and Zn) pollution in coastal sediment cores assess quality from Usukan Beach, Kota Belud. Several geochemical parameter analyses such as pH, moisture content (MC), organic matter (OM) granulometric size were performed to identify physico-chemical properties sediments that affect assessment metal pollution. Hea...

The water quality of the Persian Gulf is influenced by various industrial and urban discharges. The study area is a small linked estuary with the Straits of Hormuz in the Persian Gulf. This study was conducted to evaluate anthropogenic assessment, pollution status and potential ecological risk of some heavy metals (Pb,Ni, Zn, and Fe) in intertidal surface sediments of a mangrove estua...

In the Xining area of Huangshui River, China, concentrations globally alarming toxic heavy metals such as chromium (Cr), arsenic (As), lead (Pb), cadmium (Cd), and zinc (Zn) in surface sediments were measured to determine ecological risks riverine ecosystem. Overall, relatively high. The results indicated that Pb/Zn/Cr lower than 120/250/200 mg·kg−1 which was risk screening value each metal for...