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Airborne ultrafine particles in a naturally ventilated metro station : Dominant sources and mixing state determined by particle size distribution and volatility measurements. / Mendes, Luís; Gini, Maria I.; Biskos, George; Colbeck, Ian; Eleftheriadis, Konstantinos.

In: Environmental Pollution, Vol. 239, 01.08.2018, p. 82-94.

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Mendes, Luís ; Gini, Maria I. ; Biskos, George ; Colbeck, Ian ; Eleftheriadis, Konstantinos. / Airborne ultrafine particles in a naturally ventilated metro station : Dominant sources and mixing state determined by particle size distribution and volatility measurements. In: Environmental Pollution. 2018 ; Vol. 239. pp. 82-94.

BibTeX

@article{c8cb922c89d2427cb479fbe4afe5453e,
title = "Airborne ultrafine particles in a naturally ventilated metro station: Dominant sources and mixing state determined by particle size distribution and volatility measurements",
abstract = "Ultrafine particle number concentrations and size distributions were measured on the platform of a metro station in Athens, Greece, and compared with those recorded at an urban background station. The volatility of the sampled particles was measured in parallel, providing further insights on the mixing state and composition of the sampled particles. Particle concentration exhibited a mean value of 1.2 × 104 # cm−3 and showed a weak correlation with train passage frequency, but exhibited a strong correlation with urban background particle concentrations. The size distribution appears to be strongly influenced by outdoor conditions, such as the morning traffic rush hour and new particle formation events observed at noon. The aerosol in the metro was externally mixed throughout the day, with particle populations being identified (1) as fully refractory particles being more dominant during the morning traffic rush hours, (2) as core-shell structure particles having a non-volatile core coated with volatile material, and (3) fully volatile particles. The evolution of particle volatility and size throughout the day provide additional support that most nanoparticles in the metro station originate from outdoor urban air. Ultrafine particles concentration in the metro were within the range of those in urban air, and are originated mainly from outdoors, even though the metro is naturally ventilated.",
keywords = "Aerosol volatility, Metro, Mixing state, Ultrafine particles, Urban aerosol",
author = "Lu{\'i}s Mendes and Gini, {Maria I.} and George Biskos and Ian Colbeck and Konstantinos Eleftheriadis",
year = "2018",
month = "8",
day = "1",
doi = "10.1016/j.envpol.2018.03.067",
language = "English",
volume = "239",
pages = "82--94",
journal = "Environmental Pollution",
issn = "0269-7491",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Airborne ultrafine particles in a naturally ventilated metro station

T2 - Environmental Pollution

AU - Mendes, Luís

AU - Gini, Maria I.

AU - Biskos, George

AU - Colbeck, Ian

AU - Eleftheriadis, Konstantinos

PY - 2018/8/1

Y1 - 2018/8/1

N2 - Ultrafine particle number concentrations and size distributions were measured on the platform of a metro station in Athens, Greece, and compared with those recorded at an urban background station. The volatility of the sampled particles was measured in parallel, providing further insights on the mixing state and composition of the sampled particles. Particle concentration exhibited a mean value of 1.2 × 104 # cm−3 and showed a weak correlation with train passage frequency, but exhibited a strong correlation with urban background particle concentrations. The size distribution appears to be strongly influenced by outdoor conditions, such as the morning traffic rush hour and new particle formation events observed at noon. The aerosol in the metro was externally mixed throughout the day, with particle populations being identified (1) as fully refractory particles being more dominant during the morning traffic rush hours, (2) as core-shell structure particles having a non-volatile core coated with volatile material, and (3) fully volatile particles. The evolution of particle volatility and size throughout the day provide additional support that most nanoparticles in the metro station originate from outdoor urban air. Ultrafine particles concentration in the metro were within the range of those in urban air, and are originated mainly from outdoors, even though the metro is naturally ventilated.

AB - Ultrafine particle number concentrations and size distributions were measured on the platform of a metro station in Athens, Greece, and compared with those recorded at an urban background station. The volatility of the sampled particles was measured in parallel, providing further insights on the mixing state and composition of the sampled particles. Particle concentration exhibited a mean value of 1.2 × 104 # cm−3 and showed a weak correlation with train passage frequency, but exhibited a strong correlation with urban background particle concentrations. The size distribution appears to be strongly influenced by outdoor conditions, such as the morning traffic rush hour and new particle formation events observed at noon. The aerosol in the metro was externally mixed throughout the day, with particle populations being identified (1) as fully refractory particles being more dominant during the morning traffic rush hours, (2) as core-shell structure particles having a non-volatile core coated with volatile material, and (3) fully volatile particles. The evolution of particle volatility and size throughout the day provide additional support that most nanoparticles in the metro station originate from outdoor urban air. Ultrafine particles concentration in the metro were within the range of those in urban air, and are originated mainly from outdoors, even though the metro is naturally ventilated.

KW - Aerosol volatility

KW - Metro

KW - Mixing state

KW - Ultrafine particles

KW - Urban aerosol

UR - http://www.scopus.com/inward/record.url?scp=85045064929&partnerID=8YFLogxK

U2 - 10.1016/j.envpol.2018.03.067

DO - 10.1016/j.envpol.2018.03.067

M3 - Article

VL - 239

SP - 82

EP - 94

JO - Environmental Pollution

JF - Environmental Pollution

SN - 0269-7491

ER -

ID: 43643686