PMID- 38126869
OWN - NLM
STAT- MEDLINE
DCOM- 20231222
LR  - 20231222
IS  - 1742-3406 (Electronic)
IS  - 0144-8420 (Linking)
VI  - 199
IP  - 20
DP  - 2023 Dec 21
TI  - PM1, PM2.5 and PM10 size fraction distribution under steady-state conditions in a 
      walk-in type 222Rn calibration chamber facility.
PG  - 2401-2405
LID - 10.1093/rpd/ncad262 [doi]
AB  - Attachment of 222Rn progenies, upon their formation, to the atmospheric aerosols 
      and inhalation of these radioactive aerosols causes inhalation dose to the human 
      being. Aerosols have the characteristics of small particle size, long-time 
      suspension and long-distance transmission and easy access to the deep respiratory 
      tract. Aerosols are responsible for viral infection risk such as the recent 
      worldwide pandemic caused by severe acute respiratory syndrome coronavirus-2 
      (SARS-CoV-2, or COVID-19). Understanding the formation and behaviour of aerosols 
      in a confined environment in various human habitations is essential to combat 
      such detrimental exposures. Experiments have been performed to study the 
      distribution of aerosol size fractions in the walk-in type 222Rn calibration 
      chamber. The real-time applied particle technology monitors (APT-Maxima 
      stationary monitors) were used for the simultaneous measurements of PM1, PM2.5, 
      and PM10 size fractions. The variation of the mass densities (mug m-3) of 
      different size fractions at different positions inside the chamber was monitored 
      by placing APTs. The PM1, PM2.5, and PM10 sizes fractions were distributed 
      homogeneously within the chamber volume and the concentration ratios of these 
      fractions were 1:1.5:1.6 for concentration values of < 1500 mug m-3, and 1:7:9 for 
      the concentration values of > 1500 mug m-3.
CI  - (c) The Author(s) 2023. Published by Oxford University Press. All rights reserved. 
      For Permissions, please email: journals.permissions@oup.com.
FAU - Vijith, Anidil P
AU  - Vijith AP
AD  - Centre for Advanced Research in Environmental Radioactivity (CARER), Mangalore 
      University, Mangalore, 574199, India.
FAU - Mayya, Yelia S
AU  - Mayya YS
AD  - Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, 
      Mumbai, 400094, India.
AD  - Department of Chemical Engineering, Indian Institute of Technology Bombay, 
      Mumbai, 400076, India.
FAU - Mishra, Rosaline
AU  - Mishra R
AD  - Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, 
      Mumbai, 400094, India.
AD  - Homi Bhabha National Institute, Mumbai, 400094, India.
FAU - Sapra, Balvinder K
AU  - Sapra BK
AD  - Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, 
      Mumbai, 400094, India.
FAU - Karunakara, Naregundi
AU  - Karunakara N
AUID- ORCID: 0000-0002-9451-6993
AD  - Centre for Advanced Research in Environmental Radioactivity (CARER), Mangalore 
      University, Mangalore, 574199, India.
LA  - eng
PT  - Journal Article
PL  - England
TA  - Radiat Prot Dosimetry
JT  - Radiation protection dosimetry
JID - 8109958
RN  - 0 (Radon-222)
RN  - Q74S4N8N1G (Radon)
RN  - 7320-57-2 (APT)
RN  - 0 (Aerosols)
RN  - 0 (Particulate Matter)
SB  - IM
MH  - Humans
MH  - Calibration
MH  - *Radon
MH  - SARS-CoV-2
MH  - Aerosols
MH  - Particulate Matter
EDAT- 2023/12/21 12:42
MHDA- 2023/12/22 06:42
CRDT- 2023/12/21 09:43
PHST- 2023/03/27 00:00 [received]
PHST- 2023/08/31 00:00 [revised]
PHST- 2023/08/31 00:00 [accepted]
PHST- 2023/12/22 06:42 [medline]
PHST- 2023/12/21 12:42 [pubmed]
PHST- 2023/12/21 09:43 [entrez]
AID - 7480491 [pii]
AID - 10.1093/rpd/ncad262 [doi]
PST - ppublish
SO  - Radiat Prot Dosimetry. 2023 Dec 21;199(20):2401-2405. doi: 10.1093/rpd/ncad262.