Using miniaturised scanning mobility particle sizers to observe size distribution patterns of quasi-ultrafine aerosols inhaled during city commuting

Moreno, Teresa; Reche, Cristina; Ahn, Kang‐Ho; Eun, Hee-Ram; Kim, Woo Young; Kim, Hee-Sang; Fernández-Iriarte, Amaia; Amato, Fúlvio; Querol, Xavier

doi:10.1016/j.envres.2020.109978

Cited by 12 publications

(4 citation statements)

References 66 publications

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“…The measurements in Lak Si were recorded with an instrument which can detect smaller particles (down to 4.5 nm compared to the TSI CPC at 10 nm). However, the peak size concentration in this experiment was expected to be between 30 and 70 nm [ 57 ]. Even with a relative undercount, the TSI measurements on the transport route are higher than the fixed measurement, indicating the importance of proximity to the source.…”

Section: Resultsmentioning

confidence: 99%

“…Most studies use PM 10 or PM 2.5 mass measurements to assess pollutant exposure, as submicron and ultrafine particles are costlier and more difficult to measure. However, the number of particles measured is predominantly found in the submicron range [ 57 ]. Using miniaturised scanning mobility particle sizers, Moreno et al [ 57 ].…”

Section: Introductionmentioning

confidence: 99%

“…However, the number of particles measured is predominantly found in the submicron range [ 57 ]. Using miniaturised scanning mobility particle sizers, Moreno et al [ 57 ]. noted a unimodal distribution of particles with a peak within the range of 30–70 nm in field measurements comparing walking, cycling, cars, buses, trams and subways in Barcelona, Spain.…”

Section: Introductionmentioning

confidence: 99%

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Particle Number Concentration Measurements on Public Transport in Bangkok, Thailand

Matthews

Chompoobut

Navasumrit

et al. 2023

IJERPH

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Traffic is a major source of particulate pollution in large cities, and particulate matter (PM) level in Bangkok often exceeds the World Health Organisation limits. While PM2.5 and PM10 are both measured in Bangkok regularly, the sub-micron range of PM, of specific interest in regard to possible adverse health effects, is very limited. In the study, particle number concentration (PNC) was measured on public transport in Bangkok. A travel route through Bangkok using the state railway, the mass rapid transport underground system, the Bangkok Mass Transit System (BTS) Skytrain and public buses on the road network, with walking routes between, was taken whilst measuring particle levels with a hand-held concentration particle counter. The route was repeated 19 times covering different seasons during either morning or evening rush hours. The highest particle concentrations were found on the state railway, followed by the bus, the BTS Skytrain and the MRT underground with measured peaks of 350,000, 330,000, 33,000 and 9000 cm−3, respectively, though particle numbers over 100,000 cm−3 may be an underestimation due to undercounting in the instrument. Inside each form of public transport, particle numbers would peak when stopping to collect passengers (doors opening) and decay with a half-life between 2 and 3 min. There was a weak correlation between particle concentration on bus, train and BTS and Skytrain with carbon monoxide concentration, as measured at a fixed location in the city.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Particle Number Concentration Measurements on Public Transport in Bangkok, Thailand

Matthews

Chompoobut

Navasumrit

et al. 2023

IJERPH

View full text Add to dashboard Cite

show abstract

“…Minimum scanning time for SMPS is 1 minute, as overly fast scans can distort particle size distribution. Another reason for slower scans is low counting statistics (there might not be sufficient particles to establish a distribution from a short scan) [28], [29], [36], [40].…”

Section: Measuring Particle Size Distributionmentioning

confidence: 99%

Measurement of Particulate Matter: Principles and Options of Measurement at Present

Kirešová,

Guzan

2022

Acta Electrotechnica Et Informatica

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This paper serves as an overview of the research on particulate matter. This includes the sources of particulate matter, the composition of particles and, most importantly, negative impact on human health. The paper also deals with the methods, and instruments of measurement of particulate matter. Future development of measuring particulate matter is proposed, such as implementing Internet of Things and wireless sensor network technologies as well as performing the analysis of the measured data to find how other measured quantities affect the concentration of particulate matter.

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Review on main sources and impacts of urban ultrafine particles: Traffic emissions, nucleation, and climate modulation

Guo

Yang

et al. 2023

Atmospheric Environment: X

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Using miniaturised scanning mobility particle sizers to observe size distribution patterns of quasi-ultrafine aerosols inhaled during city commuting

Cited by 12 publications

References 66 publications

Particle Number Concentration Measurements on Public Transport in Bangkok, Thailand

Particle Number Concentration Measurements on Public Transport in Bangkok, Thailand

Measurement of Particulate Matter: Principles and Options of Measurement at Present

Review on main sources and impacts of urban ultrafine particles: Traffic emissions, nucleation, and climate modulation

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