Indoor Laundry Drying Could Be Bad For Your Health
03 Nov 2012 www.medicalnewstoday.com
A combination of prolonged wet weather and reducing use of tumble dryers
as a way to cut fuel bills, may encourage people to dry more clothes
indoors, for instance on drying frames or by draping on radiators. But
according to researchers in Scotland, this could pose health risks by
increasing moisture that encourages moulds and dust mites, which is bad for
people prone to asthma.
Also, while the intention may be to save energy and cost, that is not
necessarily the result, say the researchers, from the Mackintosh
Environmental Architecture Research Unit (MEARU) at The Glasgow School of
Art, working with Strathclyde and Caledonian universities, because in order
to dry off the 2 litres that the average load of washing releases into the
air, people often turn up the heating.
The three-year research project, titled "Environmental Assessment of
Domestic laundering", was funded by the Engineering and Physical Sciences
Research Council (EPSRC). A report and press statement were released on 2
Report co-author, Colin Porteous, a professor at MEARU, says:
"Because of increased awareness of the energy consumption of tumble dryers
many people are choosing to dry clothes passively within their home."
"This results not only in a severe energy penalty, because of increased
heating demand, but also a potential health risk due to higher moisture
levels," he adds.
Researchers suggest a strong correlation between drying laundry indoors and
increased spore growth, which can exacerbate symptoms for sufferers of
asthma, hay fever and other allergies.
The researchers examined the laundry habits of residents in a wide
demographic mix living in social housing in the West of Scotland, and also
carried out a detailed analysis of air quality and energy consumption.
They concluded indoor drying of laundry poses environmental, economic and
health problems, and the tendency in the UK toward building smaller, more
airtight homes, only serves to make things worse.
In ill-ventilated rooms, putting clothes on radiators to dry can account for
up to a third of the moisture in the air, and creates ideal conditions for
mould spores to grow and dust mites to thrive. Both these conditions are
known triggers of asthma.
The researchers also point out that indoor drying of clothes that contain
fabric conditioner is likely to increase the amount of cancer-causing
chemicals in the air.
Indoor laundry drying also leads to increased use of energy, as radiators
are often turned up to help the drying process, and/or windows are opened.
This just worsens fuel poverty, already a major issue in the West of
Scotland, say the researchers.
The team recommends people dry their laundry outdoors whenever possible, or
use energy-efficient, condensing tumble dryers. If you have to dry your
clothes indoors, then place them by a south facing window (the message is
for people in the UK), using natural light and heat. An even better method
is to place the clothes on a south-facing balcony, if you have one.
They also suggest, when creating new housing stock, planners and builders
should make sure the designs cater for ways of drying laundry that do not
contribute to poor air quality. The researchers have published a
design guide with suggestions like: upgrading balconies and sunspaces,
ensuring new homes have a drying space with its own heating and ventilation,
communal laundry and drying facilities, and installing energy-efficient
The team is now discussing its findings with social housing authorities,
with a view to their proposals being adopted as Housing Associations upgrade
existing stock and build new homes.
However they argue more sweeping changes are necessary, including updating
the Building Regulations so they apply to all new housing. Such a move would
have many benefits, says Porteous:
"Our research gives strong justification for the changes both in terms of
health and wellbeing, and associated economic impacts. It is our hope that
current statutory and advisory standards will be modified to take them on
board ensuring a healthy and economically sustainable living environment."
Written by Catharine Paddock PhD
Copyright: Medical News Today
Assessment of Domestic Laundering"; Rosalie Menon and Colin
Porteus (2012); Published by MEARU (Mackintosh Environmental Architecture
Research Unit), The Glasgow School of Art; ISBN: 978-0-9571595-0-1.
Catharine Paddock PhD. "Indoor Laundry Drying Could Be Bad For Your Health."
Medical News Today. MediLexicon, Intl., 3 Nov. 2012. Web.