ASHRAE Journal - February 2023 - 26

COLUMN IEQ APPLICATIONS
be removed via source control. Formaldehyde was also
found to cause significant harm. They concluded that all
other contaminants matter to a lesser degree and can be
ignored until better evidence suggests otherwise.
The Future is Harm
Logue's work has been used by the Air Infiltration and
Ventilation Centre2 as a basis for their technical note on
Residential Ventilation and Health. But, although casual
conversations with fellow academics suggest that Logue's
work is well known and intellectually interesting, most
don't seem to know what to do with it and find exposure
limit values easier to work with. Afterall, how does an
engineer use a DALY?
The University of Nottingham and International Energy
Agency Annex 864 has revisited Logue's analysis to consider
Energy Efficient Indoor Air Quality Management in
Residential Buildings. They have updated the epidemiological
and toxicological models and created a database
of supporting information compiled from new research
carried out over the past decade.
The first analysis was to identify uncertainty in concentrations
in dwellings for each of Logue's contaminants
plus a few others to reflect recent reviews of those
that are common, giving a total of 45. Ethanol is the most
common contaminant by mass (around 30%) and PM2.5
was the fourth most common (around 10%), but presence
does not indicate harm.
The models and its inputs were then used to develop a
new metric, called a harm intensity, with units of DALYs
per concentration per year. Interestingly, harm intensities
determined by the epidemiological and toxicological
approaches for the same contaminant had remarkable
agreement, and breathing rate has a negligible impact
on their value, so they apply equally to identical spaces
with different activities.
Finally, the concentrations and harm intensities were
combined to identify the harm caused by each of the 45
contaminants in residential dwellings. PM2.5 (~66% of all
harm), the course fraction of PM10 (~13%), formaldehyde
(~9%), and nitrogen dioxide (~8%), radon (~2%), and
ozone (~1%). These are the most harmful contaminants
Join Lucy on an Engineering Adventure!
A new children's book from
ASHRAE, now available in
the ASHRAE Bookstore!
ashrae.org/bookstore
26
ASHRAE JOURNAL ashrae.o rg F E B R U A RY 2 0 2 3

http://www.ashrae.org/bookstore http://www.ashrae.org

ASHRAE Journal - February 2023

Table of Contents for the Digital Edition of ASHRAE Journal - February 2023

Contents
ASHRAE Journal - February 2023 - Intro
ASHRAE Journal - February 2023 - Cover1
ASHRAE Journal - February 2023 - Cover2
ASHRAE Journal - February 2023 - 1
ASHRAE Journal - February 2023 - Contents
ASHRAE Journal - February 2023 - 3
ASHRAE Journal - February 2023 - 4
ASHRAE Journal - February 2023 - 5
ASHRAE Journal - February 2023 - 6
ASHRAE Journal - February 2023 - 7
ASHRAE Journal - February 2023 - 8
ASHRAE Journal - February 2023 - 9
ASHRAE Journal - February 2023 - 10
ASHRAE Journal - February 2023 - 11
ASHRAE Journal - February 2023 - 12
ASHRAE Journal - February 2023 - 13
ASHRAE Journal - February 2023 - 14
ASHRAE Journal - February 2023 - 15
ASHRAE Journal - February 2023 - 16
ASHRAE Journal - February 2023 - 17
ASHRAE Journal - February 2023 - 18
ASHRAE Journal - February 2023 - 19
ASHRAE Journal - February 2023 - 20
ASHRAE Journal - February 2023 - 21
ASHRAE Journal - February 2023 - 22
ASHRAE Journal - February 2023 - 23
ASHRAE Journal - February 2023 - 24
ASHRAE Journal - February 2023 - 25
ASHRAE Journal - February 2023 - 26
ASHRAE Journal - February 2023 - 27
ASHRAE Journal - February 2023 - 28
ASHRAE Journal - February 2023 - 29
ASHRAE Journal - February 2023 - 30
ASHRAE Journal - February 2023 - 31
ASHRAE Journal - February 2023 - 32
ASHRAE Journal - February 2023 - 33
ASHRAE Journal - February 2023 - 34
ASHRAE Journal - February 2023 - 35
ASHRAE Journal - February 2023 - 36
ASHRAE Journal - February 2023 - 37
ASHRAE Journal - February 2023 - 38
ASHRAE Journal - February 2023 - 39
ASHRAE Journal - February 2023 - 40
ASHRAE Journal - February 2023 - 41
ASHRAE Journal - February 2023 - 42
ASHRAE Journal - February 2023 - 43
ASHRAE Journal - February 2023 - 44
ASHRAE Journal - February 2023 - 45
ASHRAE Journal - February 2023 - 46
ASHRAE Journal - February 2023 - 47
ASHRAE Journal - February 2023 - 48
ASHRAE Journal - February 2023 - 49
ASHRAE Journal - February 2023 - 50
ASHRAE Journal - February 2023 - 51
ASHRAE Journal - February 2023 - 52
ASHRAE Journal - February 2023 - 53
ASHRAE Journal - February 2023 - 54
ASHRAE Journal - February 2023 - 55
ASHRAE Journal - February 2023 - 56
ASHRAE Journal - February 2023 - 57
ASHRAE Journal - February 2023 - 58
ASHRAE Journal - February 2023 - 59
ASHRAE Journal - February 2023 - 60
ASHRAE Journal - February 2023 - 61
ASHRAE Journal - February 2023 - 62
ASHRAE Journal - February 2023 - 63
ASHRAE Journal - February 2023 - 64
ASHRAE Journal - February 2023 - 65
ASHRAE Journal - February 2023 - 66
ASHRAE Journal - February 2023 - 67
ASHRAE Journal - February 2023 - 68
ASHRAE Journal - February 2023 - 69
ASHRAE Journal - February 2023 - 70
ASHRAE Journal - February 2023 - 71
ASHRAE Journal - February 2023 - 72
ASHRAE Journal - February 2023 - Cover3
ASHRAE Journal - February 2023 - Cover4
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_XGMDXI
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_YELQLJ
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_QJLWMC
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_MCDEBX
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_WNYSQY
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_XATVOD
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_FJSHSS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_CCBZDS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_XDEFVG
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2023november_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2023november
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_VHGNBL
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_WPKBNJ
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_UUVCDE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_RTGDEW
https://www.nxtbook.com/nxtbooks/ashrae/ashraemexico_2023
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_LKRFXS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_AZSOFG
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_ERCDBH
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_QWDFRV
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_JHGVDF
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_OPUYHG
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_SREIBM
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_LRTGLK
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_OKRFGH
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2022november_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2022november
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_TZSERA
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_LVRUIX
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_RPTVYZ
https://www.nxtbook.com/nxtbooks/ashrae/mini_pub_catalog
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_XIYTGD
https://www.nxtbook.com/nxtbooks/ashrae/ashraemexico_2022
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_RFGDOB
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_PABXNU
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_REMKLS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_PICVBT
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_AOYTVW
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_JQOPLS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_IOYTBC
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_SGAJJF
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_IGHYER
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_PDRKLS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2021november
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2021november_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_XCODFR
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_QSLFGO
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_ILKVNM
https://www.nxtbook.com/nxtbooks/ashrae/ashraemexico_2021
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_OPDJKD
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_VJKSRY
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_SDHUTC
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_JPPKRR
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_SDLTTH
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_CKLLES
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_SLDOX
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_HJETUK
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_OLUHGE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2020october
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2020october_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_ZERDGH
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_QVMNEO
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_RTPOKE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_BBATRE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_STUBMW
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_TPEMPE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_JNMKDS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_FBTTPA
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_WQMMNE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_TVBRYN
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_showguide2020
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_KTUZMA
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_ABEDGD
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201910
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201909
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2019septmeber_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2019september
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201908
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201907
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201906
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201905
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201904
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2019april
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201903
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2019march
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201902
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201901
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_showguide2019
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2018december
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2018november
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2018fall_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2018fall
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2018october
https://www.nxtbook.com/nxtbooks/ashrae/ashraemexico_2018
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201810
https://www.nxtbook.com/nxtbooks/ashrae/ashraeinsights_201806
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201805
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201804
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201803
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201712
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201711
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201710
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2017fall_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2017fall
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201709
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201705
https://www.nxtbook.com/nxtbooks/ashrae/ashrae_meetinginsert_201610
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2016fall_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2016fall
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_acrexindia
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2015summer_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2015summer
https://www.nxtbook.com/nxtbooks/amca/2014summer2
https://www.nxtbook.com/nxtbooks/amca/2014summer
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_acma_2014summer
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201311
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201309
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_acmasupp_2013fall
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201305
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201303
https://www.nxtbook.com/nxtbooks/ashrae/pubcatalog_2013winter
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201211
https://www.nxtbook.com/nxtbooks/ashrae/achr_expo_mexico2012
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201209
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201208_v3
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201208_v2
https://www.nxtbook.com/nxtbooks/ashrae/pubcatalog_2012summer
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201205
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201203
https://www.nxtbook.com/nxtbooks/ashrae/pubcatalog_2012winter
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201111_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201109_v2
https://www.nxtbook.com/nxtbooks/ashrae/pubcatalog_2011summer
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201105
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201103
https://www.nxtbookmedia.com