Aerosol particles (0.3–10 μm) inside an educational workshop

Emission rate and inhaled deposited dose

Androniki Maragkidou, Omar Jaghbeir, Kaarle Hämeri, Tareq Hussein

Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

Kuvaus

In this study, we measured the concentrations of accumulation and coarse particles inside an educational workshop (March 31–April 6, 2015), calculated particle emission and losses rates, and estimated inhaled deposited dose. We used an Optical Particle Sizer (TSI OPS 3330) that measures the particle number size distribution (diameter 0.3–10 μm) and we converted that into particle mass size distribution (assuming spherical particles and unit density). We focused on two particle size fractions: 0.3–1 μm (referred as PN0.3−1 and PM0.3−1) and 1–10 μm (referred as PN1−10 and PM1−10). The occupants' activities included coffee brewing, lecturing, tobacco smoking, welding, scrubbing, and sorting/drilling iron. The highest concentrations were observed during welding with PN0.3−1 (PM0.3−1) was ∼1866 cm−3 (55 μg/m3) and PN1−10 (PM1−10) was ∼7 cm−3 (103 μg/m3). The lowest concentrations were observed during coffee brewing and metal turning with PN0.3−1 (PM0.3−1) was ∼22 cm−3 (0.7 μg/m3) and PN1−10 (PM1−10) was ∼0.5 cm−3 (4 μg/m3). The emissions rate of coarse particles was 85–1010 particles/hour × cm3 whereas that for submicron particle in the diameter range 0.3–1 μm was 5.7 × 104–9.3 × 104 particles/hour × cm3 depending on the activity and the ventilation rate. The coarse particles losses rate was 0.35–2.1 h−1 and the ventilation rate was 0.24–2.1 h−1. The alveolar received the majority and particles below 1 μm with a fraction of about 53% of the total inhaled deposited dose whereas the head/throat region received about 18%. This study is important for better understanding the health effects at educational workshops.
Alkuperäiskielienglanti
LehtiBuilding and Environment
Vuosikerta140
Sivut80–89
Sivumäärä10
ISSN0360-1323
DOI - pysyväislinkit
TilaJulkaistu - elokuuta 2018
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä, vertaisarvioitu

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  • 114 Fysiikka

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@article{37a9187515734d1eafc6109f1c1a3a72,
title = "Aerosol particles (0.3–10 μm) inside an educational workshop: Emission rate and inhaled deposited dose",
abstract = "In this study, we measured the concentrations of accumulation and coarse particles inside an educational workshop (March 31–April 6, 2015), calculated particle emission and losses rates, and estimated inhaled deposited dose. We used an Optical Particle Sizer (TSI OPS 3330) that measures the particle number size distribution (diameter 0.3–10 μm) and we converted that into particle mass size distribution (assuming spherical particles and unit density). We focused on two particle size fractions: 0.3–1 μm (referred as PN0.3−1 and PM0.3−1) and 1–10 μm (referred as PN1−10 and PM1−10). The occupants' activities included coffee brewing, lecturing, tobacco smoking, welding, scrubbing, and sorting/drilling iron. The highest concentrations were observed during welding with PN0.3−1 (PM0.3−1) was ∼1866 cm−3 (55 μg/m3) and PN1−10 (PM1−10) was ∼7 cm−3 (103 μg/m3). The lowest concentrations were observed during coffee brewing and metal turning with PN0.3−1 (PM0.3−1) was ∼22 cm−3 (0.7 μg/m3) and PN1−10 (PM1−10) was ∼0.5 cm−3 (4 μg/m3). The emissions rate of coarse particles was 85–1010 particles/hour × cm3 whereas that for submicron particle in the diameter range 0.3–1 μm was 5.7 × 104–9.3 × 104 particles/hour × cm3 depending on the activity and the ventilation rate. The coarse particles losses rate was 0.35–2.1 h−1 and the ventilation rate was 0.24–2.1 h−1. The alveolar received the majority and particles below 1 μm with a fraction of about 53{\%} of the total inhaled deposited dose whereas the head/throat region received about 18{\%}. This study is important for better understanding the health effects at educational workshops.",
keywords = "114 Physical sciences, Exposure, aerosol modeling, particle losses, Indoor air quality, Exposure, Indoor air quality, Particle losses, Aerosol modeling, INDOOR AIR-QUALITY, RESPIRATORY-TRACT DEPOSITION, SICK BUILDING SYNDROME, ULTRA-FINE PARTICLES, PARTICULATE MATTER, MASS CONCENTRATIONS, RESIDENTIAL HOUSES, EXPOSURE, SIZE, CLASSROOMS",
author = "Androniki Maragkidou and Omar Jaghbeir and Kaarle H{\"a}meri and Tareq Hussein",
year = "2018",
month = "8",
doi = "10.1016/j.buildenv.2018.05.031",
language = "English",
volume = "140",
pages = "80–89",
journal = "Building and Environment",
issn = "0360-1323",
publisher = "PERGAMON",

}

Aerosol particles (0.3–10 μm) inside an educational workshop : Emission rate and inhaled deposited dose. / Maragkidou, Androniki; Jaghbeir, Omar ; Hämeri, Kaarle; Hussein, Tareq.

julkaisussa: Building and Environment, Vuosikerta 140, 08.2018, s. 80–89.

Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

TY - JOUR

T1 - Aerosol particles (0.3–10 μm) inside an educational workshop

T2 - Emission rate and inhaled deposited dose

AU - Maragkidou, Androniki

AU - Jaghbeir, Omar

AU - Hämeri, Kaarle

AU - Hussein, Tareq

PY - 2018/8

Y1 - 2018/8

N2 - In this study, we measured the concentrations of accumulation and coarse particles inside an educational workshop (March 31–April 6, 2015), calculated particle emission and losses rates, and estimated inhaled deposited dose. We used an Optical Particle Sizer (TSI OPS 3330) that measures the particle number size distribution (diameter 0.3–10 μm) and we converted that into particle mass size distribution (assuming spherical particles and unit density). We focused on two particle size fractions: 0.3–1 μm (referred as PN0.3−1 and PM0.3−1) and 1–10 μm (referred as PN1−10 and PM1−10). The occupants' activities included coffee brewing, lecturing, tobacco smoking, welding, scrubbing, and sorting/drilling iron. The highest concentrations were observed during welding with PN0.3−1 (PM0.3−1) was ∼1866 cm−3 (55 μg/m3) and PN1−10 (PM1−10) was ∼7 cm−3 (103 μg/m3). The lowest concentrations were observed during coffee brewing and metal turning with PN0.3−1 (PM0.3−1) was ∼22 cm−3 (0.7 μg/m3) and PN1−10 (PM1−10) was ∼0.5 cm−3 (4 μg/m3). The emissions rate of coarse particles was 85–1010 particles/hour × cm3 whereas that for submicron particle in the diameter range 0.3–1 μm was 5.7 × 104–9.3 × 104 particles/hour × cm3 depending on the activity and the ventilation rate. The coarse particles losses rate was 0.35–2.1 h−1 and the ventilation rate was 0.24–2.1 h−1. The alveolar received the majority and particles below 1 μm with a fraction of about 53% of the total inhaled deposited dose whereas the head/throat region received about 18%. This study is important for better understanding the health effects at educational workshops.

AB - In this study, we measured the concentrations of accumulation and coarse particles inside an educational workshop (March 31–April 6, 2015), calculated particle emission and losses rates, and estimated inhaled deposited dose. We used an Optical Particle Sizer (TSI OPS 3330) that measures the particle number size distribution (diameter 0.3–10 μm) and we converted that into particle mass size distribution (assuming spherical particles and unit density). We focused on two particle size fractions: 0.3–1 μm (referred as PN0.3−1 and PM0.3−1) and 1–10 μm (referred as PN1−10 and PM1−10). The occupants' activities included coffee brewing, lecturing, tobacco smoking, welding, scrubbing, and sorting/drilling iron. The highest concentrations were observed during welding with PN0.3−1 (PM0.3−1) was ∼1866 cm−3 (55 μg/m3) and PN1−10 (PM1−10) was ∼7 cm−3 (103 μg/m3). The lowest concentrations were observed during coffee brewing and metal turning with PN0.3−1 (PM0.3−1) was ∼22 cm−3 (0.7 μg/m3) and PN1−10 (PM1−10) was ∼0.5 cm−3 (4 μg/m3). The emissions rate of coarse particles was 85–1010 particles/hour × cm3 whereas that for submicron particle in the diameter range 0.3–1 μm was 5.7 × 104–9.3 × 104 particles/hour × cm3 depending on the activity and the ventilation rate. The coarse particles losses rate was 0.35–2.1 h−1 and the ventilation rate was 0.24–2.1 h−1. The alveolar received the majority and particles below 1 μm with a fraction of about 53% of the total inhaled deposited dose whereas the head/throat region received about 18%. This study is important for better understanding the health effects at educational workshops.

KW - 114 Physical sciences

KW - Exposure

KW - aerosol modeling

KW - particle losses

KW - Indoor air quality

KW - Exposure

KW - Indoor air quality

KW - Particle losses

KW - Aerosol modeling

KW - INDOOR AIR-QUALITY

KW - RESPIRATORY-TRACT DEPOSITION

KW - SICK BUILDING SYNDROME

KW - ULTRA-FINE PARTICLES

KW - PARTICULATE MATTER

KW - MASS CONCENTRATIONS

KW - RESIDENTIAL HOUSES

KW - EXPOSURE

KW - SIZE

KW - CLASSROOMS

U2 - 10.1016/j.buildenv.2018.05.031

DO - 10.1016/j.buildenv.2018.05.031

M3 - Article

VL - 140

SP - 80

EP - 89

JO - Building and Environment

JF - Building and Environment

SN - 0360-1323

ER -