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Loska, Krzysztof; Cebula, Jan; Pelczar, Jacek; Wiechuła, Danuta; Kwapuliński, Jerzy

doi:10.1023/a:1022121615949

Cited by 21 publications

(12 citation statements)

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“…To evaluate the magnitude of contaminants in the environment, the enrichment factors were computed relative to the abundance of species in source material to that found in the Earth's crust [46][47][48] . Crustal enrichment factors (EFc) of elements are frequently used to determine the degree of modification in sediment composition [48] .…”

Section: Enrichment Factors (Efc)mentioning

confidence: 99%

Geochemical Distribution of Trace Metals and Assessment of Anthropogenic Pollution in Sediments of Old Nakagawa River, Tokyo, Japan

Zakir¹,

Shikazono²,

Otomo³

2008

American J. of Environmental Sciences

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The geochemical distributions of cadmium (Cd), copper (Cu), chromium (Cr), lead (Pb) and zinc (Zn) were examined in sediments collected from Old Nakagawa River (NR), Tokyo, Japan. A widely used 5-step sequential extraction procedure was employed for the fractionation of the metals and the concentrations were measured in the liquid extracts by inductively coupled plasma mass spectrometry (ICP-MS). The association of Cd (76-98%) and Zn (48-67%) were found highest with AEC (adsorbed/exchangeable/carbonate) phase, Cu (45-60%) and Pb (44-73%) with amorphous Fe oxyhydroxide phase and the maximum fractionation of Cr was in both crystalline Fe oxide (12-60%) and amorphous Fe oxyhydroxide phase (15-60%). For retention by amorphous Fe oxyhydroxide minerals, the observed stoichiometric gradient was: 1.52 for Cu, 1.23 for Pb, 2.25 for Cr and 3.09 for Zn. Corresponding values for association with crystalline oxides and sulphides and organics were an order of magnitude greater than those for amorphous oxyhydroxide, indicating a greater affinity of trace metals for these phases. The total concentration ranges of Cd, Cr, Cu, Pb and Zn in NR sediments were 2.86-16.95, 551.7-3953.1, 340.6-1565.3, 136.9-385.9 and 931.4-3650.1 µg g^-1, respectively. The observed order of potential trace metal mobility in the aquatic system was: Cd>Zn>Pb>Cu>Cr. Organic carbon contents in sediment samples were comparatively high (mean 5.48%) and the X-ray diffraction (XRD) study detected the presence of several clay minerals, those are likely to be major host of trace metals in sediments. The sediments of NR was considered to be polluted on the basis of unpolluted sediments and geochemical background values with respect to Cd, Cr, Cu, Pb and Zn. According to the enrichment factors (EFc), most of the sites have several times higher values of trace metals than the standard. The study revealed that the pollution in sediments of NR could be linked to anthropogenic activities such as industrialization, urbanization, deposition of industrial wastes and others

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Section: Enrichment Factors (Efc)mentioning

confidence: 99%

Geochemical Distribution of Trace Metals and Assessment of Anthropogenic Pollution in Sediments of Old Nakagawa River, Tokyo, Japan

Zakir¹,

Shikazono²,

Otomo³

2008

American J. of Environmental Sciences

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“…Elements that are most commonly used as reference elements include conservative elements such as iron (Fe) and aluminum (Al). 55 In this analysis, both Fe an Al were used and compared as the reference elements. Baseline values utilized to calculate EF values were derived from the eight previously described baseline samples collected outside of Santa Ana, CA.…”

Section: Discussionmentioning

confidence: 99%

Risk assessment of soil heavy metal contamination at the census tract level in the city of Santa Ana, CA: implications for health and environmental justice

Masri

LeBrón

Logue

et al. 2021

Environ. Sci.: Processes Impacts

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“…The I geo is also used to estimate the pollution levels by comparing current concentrations with preindustrial levels (Krzysztof et al 1997;Martinez and Poleto 2014). The I geo is defined by Eq.…”

Section: Discussionmentioning

confidence: 99%

Spatial distribution and source analysis of heavy metals in the marine sediments of Hong Kong

Zhang

Man

Jiang

2015

Environ Monit Assess

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A data matrix, obtained during a 3-year monitoring period (2010-2012) from 45 sampling locations in the marine of Hong Kong, was subjected to pollution indicator and multivariate statistical technique analysis to investigate the spatial distribution and origin of the selected 12 heavy metals. Results suggested that V, Ni, and Ba were at safe levels, and there was a significant anthropogenic effect on Zn, Pb, Cu, Cd, and Cr, which were moderate to severe enrichment at some locations. Sampling locations 1, 2, 7, 9, 12, 13, 14, 30, 31, and 32 were identified as pollution hot spots. Principal component analysis and cluster analysis showed that Zn, Pb, Cu, Cd, and Cr were primarily controlled by anthropogenic sources and Ni, Ba, and V by natural sources. Whereas, Al, Fe, Mn, and As were controlled by both anthropogenic and natural sources. Cluster analysis classified 45 sampling sites into five groups and analysis of variance indicated there were significant differences between different groups. The pollution hot spots were classified into moderate or high polluted groups, and the influential factor of the heavy metal distribution was analyzed.

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Cited by 21 publications

References 0 publications

Geochemical Distribution of Trace Metals and Assessment of Anthropogenic Pollution in Sediments of Old Nakagawa River, Tokyo, Japan

Geochemical Distribution of Trace Metals and Assessment of Anthropogenic Pollution in Sediments of Old Nakagawa River, Tokyo, Japan

Risk assessment of soil heavy metal contamination at the census tract level in the city of Santa Ana, CA: implications for health and environmental justice

Spatial distribution and source analysis of heavy metals in the marine sediments of Hong Kong

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