ASHRAE Journal - November 2022 - 22
IEQ APPLICATIONS
Column
Stephanie Taylor
Using a Human Health
Standard for IAQ
Management
BY STEPHANIE TAYLOR, M.D.
If you had a pond populated with fish and suddenly the fish started dying, what would
you do to understand and fix the problem? Perhaps you would wonder if the fish were
in poor health because they were bingeing on algae. Or maybe you would ask if 80% of
the fish were comfortable in their habitat. At some point, however, you would probably
search a database to learn what compounds are harmful to fish and then test the
pond water for these pollutants.
Researching and testing water to protect fish might
seem obvious. Surprisingly, a parallel approach of
analyzing and managing the predominant human
exposure-indoor air-to optimize occupant well-being
and productivity is not a priority for building management.
We are indoors approximately 90% of the time,
and health is our most valuable asset, yet there is a
lack of data relating indoor air quality (IAQ) to health
outcomes.
What might be reasons for this oversight? Perhaps
building owners do not want to test for " one more thing "
that might be expensive to correct. Are fears that the
very existence of health-related IAQ data might make
the building owner more vulnerable in a lawsuit by
an occupant claiming health problems from indoor
exposures preventing collection of the data? The most
understandable obstacle is that relating IAQ to health
outcomes is complex. The very fact that humans are
resilient and able to withstand mild physiological stress
22
ASHRAE JOURNAL ashrae.o rg N O V E M B E R 2022
without immediately obvious consequences makes
correlating indoor exposures with health changes a
difficult task. Despite these challenges, we need to pay
attention to what IAQ data would tell us. In fact, paying
attention is not enough. We need to agree on what levels
are good or bad and manage IAQ accordingly.
Hospital engineers and infection control professionals
have used ventilation, filtration, pressurization and air
cleaning strategies to try to decrease patient exposure to
airborne infectious viruses, bacteria and fungi for many
years. The COVID-19 pandemic brought these strategies
into the purview of all building managers as it became
clear that indoor exposure to airborne SARS-CoV-2
respiratory virus was the primary driver of COVID-19
outbreaks.
A foundational tool used to quantify the risk of disease
from exposure to airborne viruses is the Wells-Riley
Stephanie Taylor, M.D., is president and founder of Building 4 Health, Inc. She is a
member of ASHRAE's Epidemic Task Force and the Environmental Health Committee.
https://www.ashrae.org/
ASHRAE Journal - November 2022
Table of Contents for the Digital Edition of ASHRAE Journal - November 2022
Contents
ASHRAE Journal - November 2022 - Intro
ASHRAE Journal - November 2022 - Cover1
ASHRAE Journal - November 2022 - Cover2
ASHRAE Journal - November 2022 - 1
ASHRAE Journal - November 2022 - Contents
ASHRAE Journal - November 2022 - 3
ASHRAE Journal - November 2022 - 4
ASHRAE Journal - November 2022 - 5
ASHRAE Journal - November 2022 - 6
ASHRAE Journal - November 2022 - 7
ASHRAE Journal - November 2022 - 8
ASHRAE Journal - November 2022 - 9
ASHRAE Journal - November 2022 - 10
ASHRAE Journal - November 2022 - 11
ASHRAE Journal - November 2022 - 12
ASHRAE Journal - November 2022 - 13
ASHRAE Journal - November 2022 - 14
ASHRAE Journal - November 2022 - 15
ASHRAE Journal - November 2022 - 16
ASHRAE Journal - November 2022 - 17
ASHRAE Journal - November 2022 - 18
ASHRAE Journal - November 2022 - 19
ASHRAE Journal - November 2022 - 20
ASHRAE Journal - November 2022 - 21
ASHRAE Journal - November 2022 - 22
ASHRAE Journal - November 2022 - 23
ASHRAE Journal - November 2022 - 24
ASHRAE Journal - November 2022 - 25
ASHRAE Journal - November 2022 - 26
ASHRAE Journal - November 2022 - 27
ASHRAE Journal - November 2022 - 28
ASHRAE Journal - November 2022 - 29
ASHRAE Journal - November 2022 - 30
ASHRAE Journal - November 2022 - 31
ASHRAE Journal - November 2022 - 32
ASHRAE Journal - November 2022 - 33
ASHRAE Journal - November 2022 - 34
ASHRAE Journal - November 2022 - 35
ASHRAE Journal - November 2022 - 36
ASHRAE Journal - November 2022 - 37
ASHRAE Journal - November 2022 - 38
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ASHRAE Journal - November 2022 - 40
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ASHRAE Journal - November 2022 - 47
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ASHRAE Journal - November 2022 - 50
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ASHRAE Journal - November 2022 - 55
ASHRAE Journal - November 2022 - 56
ASHRAE Journal - November 2022 - 57
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ASHRAE Journal - November 2022 - 60
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ASHRAE Journal - November 2022 - Cover3
ASHRAE Journal - November 2022 - Cover4
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