Source and mixing state of iron-containing particles in Shanghai by individual particle analysis

Zhang, Guohua; Bi, Xinhui; Lou, Shengrong; Li, Lei; Wang, Hongli; Wang, Xinming; Zhou, Zhen; Sheng, Guoying; Fu, Jiamo; Chen, Changhong

doi:10.1016/j.chemosphere.2013.04.046

Cited by 57 publications

(46 citation statements)

References 44 publications

(49 reference statements)

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“…nitrate (Schlesinger and Cassee, 2003), but one field study in a Chinese city found their concentrations to be closely associated with total and cardiovascular mortality (Cao et al, 2012). This disparity can be explained by understanding the mixing state of single particles: the nanosized soot, organic matter, and metals which are toxic components of PM 2.5 (Cao et al, 2012;Dockery and Pope, 1994;Kan et al, 2012;Shao et al, 2006) are mostly internally mixed with sulfate and nitrate aerosol particles Li et al, 2011bLi et al, , 2013bWhiteaker et al, 2002;Zhang et al, 2014). Through internal mixing, the acidic sulfates react with the metals, converting insoluble (and hence low toxicity) metal oxides into metal ions (Figs.…”

Section: Health Evaluationmentioning

confidence: 92%

“…11 shows that individual Fe-rich particle is one aggregate of many Fe spheres (~50 nm), suggesting that these particles are emitted via one high-temperature process. Fe-rich particles mostly have been identified as steel industrial emission (Li et al, 2013a;Zhang et al, 2014). Individual particle analyses show that many Zn-rich particles contain Pb-rich inclusions (Fig.…”

Section: Metalsmentioning

confidence: 98%

“…A large number of nanosized metal particles from anthropogenic sources were present in polluted air Li et al, 2013aLi et al, , 2013bMoffet et al, 2008;Pina et al, 2000;Utsunomiya et al, 2004;Witt et al, 2010;Zhang et al, 2014Zhang et al, , 2009, although their mass concentrations only accounted for less than 4% of PM 2.5 during haze episodes . Most of these metal particles have size smaller than 500 nm with the median diameter at 200 nm in the haze episodes (Li et al, 2013a).…”

Section: Metalsmentioning

confidence: 99%

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A review of single aerosol particle studies in the atmosphere of East Asia: morphology, mixing state, source, and heterogeneous reactions

Shao

Zhang

et al. 2016

Journal of Cleaner Production

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281

181

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Section: Health Evaluationmentioning

confidence: 92%

Section: Metalsmentioning

confidence: 98%

Section: Metalsmentioning

confidence: 99%

See 1 more Smart Citation

A review of single aerosol particle studies in the atmosphere of East Asia: morphology, mixing state, source, and heterogeneous reactions

Shao

Zhang

et al. 2016

Journal of Cleaner Production

Self Cite

281

181

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“…A peak-area ratio 56 Fe/ 54 Fe > 10 was finally applied as recommended by Zhang et al 37 to strengthen 216 the screening through excluding more ambiguous assignments. The screened Fe-containing 217 particles were subsequently imported into YAADA (Yet Another ATOFMS Data Analyzer) and 218 single-particle mass spectra were grouped with adaptive resonance theory neural network, ART-219 2a.…”

Section: Introduction 57mentioning

confidence: 99%

Fine Iron Aerosols Are Internally Mixed with Nitrate in the Urban European Atmosphere

Dall’Osto

Beddows

Harrison

et al. 2016

Environ. Sci. Technol.

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Atmospheric iron aerosol is a bioavailable essential nutrient playing a role in oceanic productivity. Using aerosol time-of-flight mass spectrometry (ATOFMS), the particle size (0.3-1.5 μm), chemical composition and mixing state of Fe-containing particles collected at two European urban sites (London and Barcelona) were characterized. Out of the six particle types accounting for the entire Fe-aerosol population, that arising from long-range transport (LRT) of fine Fe-containing particles (Fe-LRT, 54-82% across the two sites) was predominant. This particle type was found to be internally mixed with nitrate and not with sulfate, and likely mostly associated with urban traffic activities. This is in profound contrast with previous studies carried out in Asia, where the majority of iron-containing particles are mixed with sulfate and are of coal combustion origin. Other minor fine iron aerosol sources included mineral dust (8-11%), traffic brake wear material (1-17%), shipping/oil (1-6%), biomass combustion (4-13%) and vegetative debris (1-3%). Overall, relative to anthropogenic Asian Fe-sulfate dust, anthropogenic European dust internally mixed with additional key nutrients such as nitrate is likely to play a different role in ocean global biogeochemical cycles.

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“…The lowest content -518 ng/µg was found in Ostravice, 75%. Fe particles in PM10 produce four chemically different groups: Fe-rich particles (r-Fe) K-rich Fe particles, Fe particles containing V, and mineral particles as soil particles, particles released by erosion and transport of materials [20].…”

Section: The Occurrence Of Heavy Metals In Dust Particlesmentioning

confidence: 99%

Heavy Metals in Air Nanoparticles in Affected Industry Area

Sýkorová¹,

Kucbel²,

Raclavská³

et al. 2017

J. sustain. dev. energy water environ. syst.

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The Moravian-Silesian Region is one of the most polluted sites by dust particles in the Czech Republic. Therefore, atmospheric concentrations of heavy metals as cadmium, cobalt, chromium, copper, nickel, lead, antimony, thallium, manganese, iron and zinc, were monitored at 10 localities in the region during summer of 2014. Heavy metals were monitored in 10 particle size classes from 18.3 nm to 9.93 µm. The percentage of the amount of heavy metals in the sum PM at all localities ranged from 0.2-2.5%. It was found that chromium, manganese, iron and zinc were mostly accumulated in dust particles with diameter greater than 1.6 µm. Lead, cadmium and antimony occur mainly in the class below 0.949 µm. These metals are more dangerous for human health, and can have potential carcinogenic effect. The influence of metallurgical industry evaluated on the basis of heavy metals in the individual particle size classes in the air within the Moravian-Silesian Region has not been unequivocally demonstrated.

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Source and mixing state of iron-containing particles in Shanghai by individual particle analysis

Cited by 57 publications

References 44 publications

A review of single aerosol particle studies in the atmosphere of East Asia: morphology, mixing state, source, and heterogeneous reactions

A review of single aerosol particle studies in the atmosphere of East Asia: morphology, mixing state, source, and heterogeneous reactions

Fine Iron Aerosols Are Internally Mixed with Nitrate in the Urban European Atmosphere

Heavy Metals in Air Nanoparticles in Affected Industry Area

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