Mercury in the topsoil and dust of Beijing City

Zhang, Xinmin; Luo, Kui; Sun, Xinzhang; Tan, Jian'an; Lu, Yilun

doi:10.1016/j.scitotenv.2006.01.037

Cited by 55 publications

(15 citation statements)

References 22 publications

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“…For a detailed discussion on the contribution of local geology and other urbanization indicators on soil geochemistry in Athens, supported by maps and spatial statistical analysis, the reader is referred to previously published work [24]. It may be inferred that Hg distribution in Athens topsoil is controlled by human activities, in accordance with multiple investigations that have shown that Hg is an element that is typically found strongly enriched in urban settings [8,46]. Furthermore, the contribution of soil forming parent materials to the Hg loadings in Athens soil is expected to be insignificant since the regional geology does not support the occurrence of Hg-bearing deposits.…”

Section: Discussionsupporting

confidence: 70%

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Mercury in the Urban Topsoil of Athens, Greece

Kelepertzis

Argyraki

2015

Sustainability

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Abstract:The present study documents the Hg content in 45 urban topsoil samples from the highly urbanized city of Athens, Greece. The Hg concentrations were quantified by applying aqua regia digestion on the <100 μm soil fraction followed by inductively coupled plasma-mass spectrometry (ICP-MS) with a detection limit of 5 μg·kg , which is the maximum concentration value expected to be present in normal uncontaminated soils. Results obtained by multivariate principal component and hierarchical cluster analysis incorporating a large suite of chemical elements were notably effective for elucidating the anthropogenic origin of Hg in the studied soil. The elevated concentrations are most likely related to site-specific point source contamination rather than to the widely documented influences from the vehicular traffic emissions in urban settings. Given the proximity of urban population to the contaminated urban soils, we suggest the implementation of different soil extraction tests with the aim to evaluate the fraction of soil Hg available for absorption by the human body.

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Section: Discussionsupporting

confidence: 70%

“…Mercury is a widely distributed hazardous contaminant and has received great attention globally because of its persistence in the environment, high toxicity and tendency to form more toxic organic mercury compounds [8]. Soil is regarded as an important sink of Hg and plays a vital role in its biogeochemical cycle [9].…”

Section: Introductionmentioning

confidence: 99%

Mercury in the Urban Topsoil of Athens, Greece

Kelepertzis

Argyraki

2015

Sustainability

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“…Mercury mostly remains in gaseous and particulate phases, unlike other toxic metals that tend to exit only as particulate phase (Solgi et al 2014). The dust collected from the streets in this study are a combination of airborne particulate matter with a diameter less than 10µm and is frequently constituted of fuel combustion dust, and secondary dust derived from relocated urban soil particles (Hu et al 2011;Xinmin et al 2006;Ying et al 2009). The dust collected from the streets provides evidence of anthropogenic activity, geological and geographical sources.…”

Section: Introductionmentioning

confidence: 88%

“…Comparison of soils and dust in an urban environment show that collected dust from the streets are easily affected by urban populations, particularly children (Hu et al 2011). Moreover, previous works confirm that toxic metal enrichment in street dust are mostly higher than soil (Li et al 2001;Lu et al 2010;Manta et al 2002;Ordonez et al 2003;Shi et al 2008;Wei and Yang 2010;Xinmin et al 2006). In general, the study of ecological risk and health risk assessment of toxic metals like Hg, especially in street dust may be more significant than urban soils.…”

Section: Introductionmentioning

confidence: 94%

“…Natural emission of Hg coming from volcanoes, weathering of rock and ores, soil evaporation, forest fires (Chen et al 2010;Feng et al 2003), whereas human activities such as municipal solid waste, pharmaceutical industry, mining, fuel combustion, electronic, paint and paper industries are the most important anthropogenic origins of Hg in the environment (Rodrigues et al 2006;Biester et al 2002;Chatterjee et al 2014). Owing to the bioaccumulation, persistency, and toxicity of Hg, it was itemised as a priority pollutant in the controlled environment by the United Nations Environment Programme (UNEP), World Health Organisation (WHO) and Food and Agriculture Organisation (FAO) (Chen et al 2010;Xinmin et al 2006). Mercury mostly remains in gaseous and particulate phases, unlike other toxic metals that tend to exit only as particulate phase (Solgi et al 2014).…”

Section: Introductionmentioning

confidence: 99%

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Spatial distribution and human health risk assessment of mercury in street dust resulting from various land-use in Ahvaz, Iran

Nazarpour

Ghanavati

Watts

2017

Environ Geochem Health

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Mercury as a toxic element and its associated health hazard has been an important topic of research for urban pollution for many years. In this paper, the spatial distribution, pollution assessment, and health risk associated with Hg in roadside dust 96 street dust samples, representing differing land uses have been investigated. Land uses included residential areas (RA), industrial areas (IA), public gardens (PG), roadside areas (RS) and suburban areas (SA) in the city of Ahvaz, Iran were investigated. Compared with other cities, the concentration of Hg in Ahvaz was considerably higher with a mean value of 2.53 mg.kg . Residential areas exhibited higher Hg in street dust than other areas, as demonstrated by spatial mapping illustrating hot-spots associated with old urban areas with high residential density, high volume traffic of roadside areas, and industrial districts: including oil-drilling activities, steel smelting related industries, and small industrial towns around Ahvaz. However, Hg concentrations in street dust near to the public gardens (PG) and suburban areas (SA) were not at elevated levels compared other land uses investigated in this study. A health risk assessment model of non-carcinogenic effects was evaluated for both children and adults. The HQ values also revealed that the main exposures route for children and adults decreased as follows: vapour>ingestion> dermal contact> inhalation. The Hazard Index (HI) in each area is less than the safe level (HI≤1) for children and adults, but higher for children. The HI value decrease as the following order: RS>IA>RA>SA>PG, which indicates potentially serious health hazards for children in the study areas.

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Determination of Mercury Ions in Aqueous Medium and Urine Sample Using Thiocarbohydrazide Based Sensor

Kumar

Chhibber

2020

ChemistrySelect

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The identification and quantification of toxic Hg 2 + ions in biological fluids is significant due to its harmful effects. The ion is an exceptional contaminant due to its manifestation in the environment through anthropogenic emissions besides other industrial processes. The bioaccumulation of Hg 2 + ions through water bodies, soil and food causes damage to the central nervous system and endocrine glands. This work describes the synthesis of Compd-2 (Compound 2), a thiocarbohydrazidebased UV-active sensor, that can detect Hg 2 + and Cu 2 + ions in the aqueous medium (HEPES buffer (3 mM) /acetonitrile = 99 : 1, v/v). Compd-2 responds linearly to the varying concentrations of Hg 2 + with a minimum detection limit of 27 nM and a 1 : 1 stoichiometry. 1 H NMR titration with increasing Hg 2 + ion concentrations confirmed its interaction by shifting of the peak. In-silico modelling using Gaussian 16.0 and IR spectroscopy verified a single binding site for the Hg 2 + ions. Aqueous solubility of Compd-2 was used as an advantage to develop a methodology for the detection and quantification of Hg 2 + ions in the human urine sample. The work also demonstrates the nM quantification of Hg 2 + ions in the urine sample by the standard addition method.

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Mercury in the topsoil and dust of Beijing City

Cited by 55 publications

References 22 publications

Mercury in the Urban Topsoil of Athens, Greece

Mercury in the Urban Topsoil of Athens, Greece

Spatial distribution and human health risk assessment of mercury in street dust resulting from various land-use in Ahvaz, Iran

Determination of Mercury Ions in Aqueous Medium and Urine Sample Using Thiocarbohydrazide Based Sensor

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