Source identification, size distribution and indicator screening of airborne trace metals in Kanazawa, Japan

Wang, Xilong; Satō, Tsutomu; Xing, Baoshan; Tamamura, Shuji; Tao, Shu

doi:10.1016/j.jaerosci.2004.08.005

Cited by 91 publications

(45 citation statements)

References 34 publications

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“…Besides, particulate Zn may also get suspended in air due to vehicular activities, source of which may be tyre wear or lubricants and fuel additives. In our study, Zn was found in highest concentration followed by Pb, Cu and Cd respectively which is similar to the reports of earlier research work (Banerjee, 2003;Fang et al, 2005;Wang et al, 2005). Despite the use of lead free petrol, high concentration of Pb could be due to Pb particles in street dust accumulated from earlier vehicular exhaust for a long time due to their higher residence time in environment (Kulshrestha et al, 2009).…”

Section: Metal Analysissupporting

confidence: 90%

Seasonal Variation of Selected Metals in Particulate Matter at an Industrial City Kota, India

Meena

Chandrawat

et al. 2016

Aerosol Air Qual. Res.

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This study investigates seasonal variation in concentration of some heavy metals in suspended and respirable particulate matter (SPM and RPM) collected from five different zones situated in Kota city during both summer (March, April, May and October) and winter (January, February, November and December) seasons of 2011-2012. Mean concentrations of anthropogenic origin metals (Pb, Zn, Cu and Cd) were higher in winter and lower in summer with their relative abundance in order: Zn > Pb > Cu > Cd while reverse trend was observed for crustal origin metals (Ca, Mg and Fe) at all zones. Meteorological conditions such as temperature, relative humidity, wind velocity and wind direction during winter and summer were found affecting the metals concentration trends in different seasons. Wind roses indicate that the zones lying in predominant North-east wind direction from point source (KSTPS) in winter (25.74%) and summer (15.31%) faced higher metal burden following zone 1, which is suffering most owing to its closest location to the source. Statistical analysis by Pearson's correlations, enrichment factor and principal component analysis indicates that coal based Thermal Power Plant is the major source of heavy metals besides other industrial activities in the study area. It is to be noted that because of higher residence time, significant concentration of Pb is found at all the zones in the city which, probably, has its origin in earlier vehicular exhaust as well.

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Section: Metal Analysissupporting

confidence: 90%

Seasonal Variation of Selected Metals in Particulate Matter at an Industrial City Kota, India

Meena

Chandrawat

et al. 2016

Aerosol Air Qual. Res.

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“…The higher wind speed and high variability in aerosol content due to long-range transport could explain the higher concentrations of Sr, Ba, and Rb since these elements are also emitted from the oceans and to a very small extent Zn, Cu, and Cr from particle resuspension from the surface waters (Weisel et al, 1984). However, the higher concentrations of Cu, Cr, and Zn are mainly from anthropogenic activities since Zn is a strong surrogate for anthropogenic emissions (Wang et al, 2005) such as from combustion processes.…”

Section: Trace Metal Concentrationmentioning

confidence: 99%

Aerosol size-resolved trace metal composition in remote northern tropical Atlantic marine environment: case study Cape Verde islands

et al. 2013

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Size-resolved trace metal concentrations of 15 elements in aerosol particles at the Cape Verde Atmospheric Observatory (CVAO) under remote background conditions were investigated through analysis of aerosol samples collected during intensive field studies from January 2007 to November 2011 using total reflection x-ray fluorescence (TXRF). The identification of the main air mass origin that influence remote marine aerosol in the northern tropical Atlantic has been investigated. In total, 317 samples were collected. The dataset was analyzed according to the main air mass inflow at the station. We found that remote conditions make up about 45% of the meteorological conditions in a year at CVAO and thus the northern tropical Atlantic. Surprisingly, air masses from North America are often responsible for higher trace metal concentrations in this region.

Elements such as Zn, Pb, Cu, Cr, Ni, and V were mostly found in the submicron size fractions, while elements with dominant crustal or oceanic origin such as Fe, Ti, Mn, Sr, and Rb were found in the coarse fractions (>1 μm). The highest metal concentrations, especially for Zn (3.23 ng m⁻³), Cu (0.81 ng m⁻³), Sr (2.63 ng m⁻³), and Cr (0.53 ng m⁻³), were observed in air masses originating from North America and the concentrations were within the same concentration range to those reported previously in the literature for remote marine aerosols. Fe (12.26 ng m⁻³), Ti (0.91 ng m⁻³), and Mn (0.35 ng m⁻³) showed higher concentrations when air mass came from Europe and the Canary Islands. Pb concentration was low (<0.20 ng m⁻³) and did not vary significantly with air mass direction. The low Pb concentration is indicative of the complete phase-out of leaded gasoline even in African countries. Crustal enrichment factor values decreased from fine to coarse-mode particles with low values (<4) observed for Fe, Mn, and Rb, and high values (>20) for Zn, Cu, Ni, Cr, Pb, and Se. The observed enrichment of the elements was attributed to crustal, marine, anthropogenic, and biogenic sources, as well as long-range transport and resuspension. Zn, Cu and Pb were indicators of anthropogenic activities, while Ti and Sr were indicators of crustal and marine origin, respectively. Oceanic and biogenic emissions might have contributed to most of the Se observed. This work provides the first long-term size-resolved trace metals study for remote tropical northern Atlantic marine aerosols and the dataset could serve as good initiation of yearly flux estimates

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“…An investigation (Wang et al, 2005) used the earth's crustal mean abundances of the metal elements given by Gallet et al (1998) and Hu and Gao (2008). Si, Al, Fe or Ti is frequently used as the reference element.…”

Section: Enrichment Factors Of Metal Elements In Spm and Commentioning

confidence: 99%

Heavy metals in particulate and colloidal matter from atmospheric deposition of urban Guangzhou, South China

Huang

Duan

Cheng

et al. 2014

Marine Pollution Bulletin

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Source identification, size distribution and indicator screening of airborne trace metals in Kanazawa, Japan

Cited by 91 publications

References 34 publications

Seasonal Variation of Selected Metals in Particulate Matter at an Industrial City Kota, India

Seasonal Variation of Selected Metals in Particulate Matter at an Industrial City Kota, India

Aerosol size-resolved trace metal composition in remote northern tropical Atlantic marine environment: case study Cape Verde islands

Heavy metals in particulate and colloidal matter from atmospheric deposition of urban Guangzhou, South China

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