Heavy metal and grain-size distributions in estuarine shallow water sediments of the Cona Marsh (Venice Lagoon, Italy)

Zonta, Roberto; Zaggia, Luca; Argese, Emanuele

doi:10.1016/0048-9697(94)90482-0

Cited by 101 publications

(52 citation statements)

References 14 publications

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“…EFs were calculated by dividing the relative abundance of the selected elements in the PM 2.5 samples by their average abundance in the upper continental crust (Zonta et al, 1994). The average crustal abundances were adopted from a Chinese soil background study (Wei, 1990).…”

Section: Elements and Crustal Enrichment Factormentioning

confidence: 99%

Chemical Composition Characteristics of PM2.5 in Three Cities in Henan, Central China

Jiang

Guo

Wang

et al. 2017

Aerosol Air Qual. Res.

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The sites of Luoyang, Zhengzhou, and Pingdingshan in Henan, China were selected to investigate the chemical compositions of fine particulate matter (PM 2.5 ). A total of 165 PM 2.5 samples from the three sites were collected from October 2014 to July 2015. Water-soluble inorganic ions, elemental carbon and organic carbon, and other elements in PM 2.5 were analyzed by ion chromatography, carbon analyzer, and inductively coupled plasma mass spectrometry, respectively. Results showed that the annual average concentrations of PM 2.5 in the three sites were significantly higher than the Chinese national ambient air quality standard. The seasonal average of PM 2.5 concentration varied with the lowest concentrations of PM 2.5 in summer. Among these sites, the highest concentrations of SO 4 2-and NH 4 + ions were observed in Luoyang with the highest concentration of NO 3 -detected in Zhengzhou. SO 4 2-, NO 3 -and NH 4 + ions occurred as (NH 4 ) 2 SO 4 and NH 4 NO 3 . For seasonal variation, the highest concentrations for Al, Fe and Ca were observed during spring in Pingdingshan and autumn in Zhengzhou and Luoyang, respectively. Enrichment factor (EF), as an indicator, is commonly used to evaluate the contribution of anthropogenic sources, and high EFs of Zn, Cu, and Cd in PM 2.5 indicate the extent of air pollution, which is generally caused by emissions of vehicles and industries. Risks posed by heavy metals on human health were assessed. The hazard index, which was used to assess the overall potential for noncarcinogenic effects, was higher than 1 in the three sites, indicating that V, Cr, As, Mn, Cd, Co, and Ni may cause accumulative noncarcinogenic health effects on humans, without the noncancer effect of each heavy metal significant. Cr in PM 2.5 is a potential carcinogenic risk when inhaled by adults. Overall, the results indicate that PM 2.5 pollution must be considered seriously in three cities.

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Section: Elements and Crustal Enrichment Factormentioning

confidence: 99%

Chemical Composition Characteristics of PM2.5 in Three Cities in Henan, Central China

Jiang

Guo

Wang

et al. 2017

Aerosol Air Qual. Res.

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“…In order to compare the bioaccumulation of metals in mollusks of two batch samples, normalized data of original metal concentrations (enrichment factor (EF)) defined by Zonta et al (1994) were used to plot a figure by using the following formula:…”

Section: Metal Concentrations In Mollusksmentioning

confidence: 99%

Study on the contamination of heavy metals and their correlations in mollusks collected from coastal sites along the Chinese Bohai Sea

Wang

Liang

Shi

et al. 2005

Environment International

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Mollusks living in seas can accumulate heavy metals, and may serve as excellent passive biomonitors. During a period of 1 year, bioaccumulation of As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Se, and Zn was examined in nine kinds of mollusks (Rapana venosa, Neverita didyma, Scapharca subcrenata, Mytilus edulis, Amusium, Crassostrea talienwhanensis, Meretix meretrix, Ruditapes philippinarum, and Mactra veneriformis), which were collected at eight coastal sites along the Chinese Bohai Sea. Metal concentrations were directly determined by inductively coupled plasma mass spectrometer (ICP-MS). Two certified reference materials, dogfish muscle (DORM-2) and mussel (GBW 08571), were used to validate the methods, and the recoveries were within 83.72 -112.30% of the certified values. Bioaccumulation of metals varied strongly among sampling sites and species. Statistical analysis (one-way ANOVA) indicated that different species examined showed different bioaccumulation of metals, and perhaps they could be used as potential biomonitors to investigate the contamination levels of heavy metals. Principal component analysis (PCA) and correlation analysis were used to study the relationships between these heavy metals. The results showed that, in nine mollusks' tissues, there are significant correlations between these elements in adjacent main group or subgroup in periodic table of elements. D

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“…-1 for Zn. All these data suggest that heavy metal mass fractions measured in the Plomin Bay sediments kept within in the ranges reported for other relatively unpolluted localities of the Northern Adriatic Sea (5,7,(13)(14)(15)(16)(17)(18)(19).…”

Section: Granulometric and Chemical Compositionmentioning

confidence: 51%

“…Heavy metal mass fractions in sediment samples from the investigated area exhibited values lower or equal to those reported for relatively unpolluted regions of the Adriatic Sea (5,(13)(14)(15)(16)(17)(18)(19). Granulometric and chemical composition of the dredged material was highly homogeneous, exhibiting no signifi cant difference between layers.…”

Section: Resultsmentioning

confidence: 72%

Chemical Profile of Plomin Bay Sediments

Oreščanin¹,

Nađ

Bartolinčić³

et al. 2009

Archives of Industrial Hygiene and Toxicology

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Granulometric, chemical, and leaching properties of sediments dredged in the Plomin Bay (Northern Adriatic Sea, Croatia) were investigated in order to asses the risk of remobilisation of heavy metals into the water column. In total 65 samples from 65 sampling sites were taken from different sediment depths within the bay. Analysis of variance confi rmed the homogeneity of granulometric and elemental composition of the investigated sediment throughout its volume. Granulometric analysis showed that all samples corresponded to a pelitic fraction (<0.063 mm). Bulk elemental mass fractions in the sediments were similar to literature data on relatively unpolluted areas of the Adriatic Sea. High sedimentation rate caused by constant infl ow of material from the Boljunčica River drainage may be responsible for low levels of heavy metals and negligible infl uence of fl y and bottom ash from a nearby disposal site on the chemical composition of the sediments. In contact with sea water only 0.29 mg kg -1 of V, 0.04 mg kg -1 of Cr, 0.07 mg kg -1 of Ni, 0.33 mg kg -1 of Cu, 0.67 mg kg -1 of Zn and 0.06 mg kg -1 of Pb could be remobilised from sediment material into the water column. However, these values increased three to ten times in case of leaching with organic acids.

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Heavy metal and grain-size distributions in estuarine shallow water sediments of the Cona Marsh (Venice Lagoon, Italy)

Cited by 101 publications

References 14 publications

Chemical Composition Characteristics of PM2.5 in Three Cities in Henan, Central China

Chemical Composition Characteristics of PM2.5 in Three Cities in Henan, Central China

Study on the contamination of heavy metals and their correlations in mollusks collected from coastal sites along the Chinese Bohai Sea

Chemical Profile of Plomin Bay Sediments

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