OWBs create significant indoor particulate pollution

Research studies on wood smoke and other air pollution.

OWBs create significant indoor particulate pollution

Postby Wilberforce » Thu Oct 09, 2014 7:29 pm

Outdoor wood furnaces create significant indoor particulate pollution in neighboring homes.
Brown DR1, Alderman N, Weinberger B, Lewis C, Bradley J, Curtis L.
http://www.ncbi.nlm.nih.gov/pubmed/25144477
PDF DL
http://ehhijournal.org/OWFFinalPaper082114%201%202.pdf
Abstract

CONTEXT:
The use of outdoor wood furnaces (OWFs) is common in many parts of the United States. Little published information exists on the concentrations of outdoor and indoor fine particulates found near OWFs.

OBJECTIVE:
To compare PM2.5 (cts) and PM0.5 (cts) particle concentrations inside four Connecticut homes located 30.5-259?m from OWFs, and inside six Connecticut control homes located more than 2?km from the nearest OWF.

MATERIALS AND METHODS:
PM2.5 (cts) and PM0.5 (cts) measurements were made with a Dylos light-scattering particulate counter.

RESULTS:
Mean PM2.5 (cts) concentrations were 4.21 times as great in the four OWF exposed homes than the six control homes (0.302?×?10(6) counts/m(3) versus 0.0718 counts?×?10(6)/m(3) p?<?0.001). The mean PM2.5 (cts) concentrations inside the four OWF exposed homes roughly corresponds to a mass PM2.5 of 37?µg/m(3), which is above the US EPA 24-h PM2.5 limit of 35?µg/m(3). Mean PM0.5 (cts) concentrations were 3.44 times as great in the four OWF exposed homes than in the six control homes (0.657 versus 0.191?×?10(6)/m(3) p?<?0.001). Mean PM2.5 (cts) and PM0.5 (cts) concentrations were significantly higher in the house 259?m from an OWF as compared with the mean of the six control homes.

CONCLUSION:
Existing regulations, such as the present Connecticut law requiring a 61 meter distance between an OWF and neighboring homes, are not adequate to protect the health of neighboring residents.
• The Surgeon General has determined that there is no safe level of exposure to ambient smoke!

• If you smell even a subtle odor of smoke, you are being exposed to poisonous and carcinogenic chemical compounds!

• Even a brief exposure to smoke raises blood pressure, (no matter what your state of health) and can cause blood clotting, stroke, or heart attack in vulnerable people. Even children experience elevated blood pressure when exposed to smoke!

• Since smoke drastically weakens the lungs' immune system, avoiding smoke is one of the best ways to prevent colds, flu, bronchitis, or risk of an even more serious respiratory illness, such as pneumonia or tuberculosis! Does your child have the flu? Chances are they have been exposed to ambient smoke!
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