Reactive oxygen species emissions in residential wood smoke

Research studies on wood smoke and other air pollution.

Reactive oxygen species emissions in residential wood smoke

Postby Wilberforce » Sun Nov 26, 2017 9:30 am

https://www.atmos-chem-phys-discuss.net/acp-2017-1068/
https://doi.org/10.5194/acp-2017-1068

Reactive oxygen species (ROS) emissions and formation pathways in residential wood smoke under different combustion and aging conditions

Zhou, et al
Received: 17 Nov 2017 – Accepted for review: 20 Nov 2017 – Discussion started: 21 Nov 2017

"Wood combustion emissions can induce oxidative stress in the human respiratory tract caused by reactive oxygen species (ROS), either directly or after oxidation in the atmosphere."

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https://www.atmos-chem-phys-discuss.net/acp-2017-854/
https://doi.org/10.5194/acp-2017-854

Assessment of wood burning versus fossil fuel contribution to wintertime black carbon and carbon monoxide concentrations in Athens, Greece
Kalogridis, et al
Received: 11 Sep 2017 – Accepted for review: 14 Nov 2017 – Discussion started: 16 Nov 2017

"Our results suggest that even though fossil fuel combustion is the major contributor to BC in PM10, woodburning makes an important contribution of about 30% to wintertime BC concentrations at both sites... BC from biomass burning displayed a clear unimodal diurnal pattern with the highest concentrations during night, confirming that its main source was local domestic heating.

As both datasets showed significant BC and CO correlations, we used observations of CO mixing ratios along with the fraction of BCwb and BCff to quantify the percentage of observed CO which originates from fossil fuel and wood burning sources. This analysis led to the conclusion that the wood-burning fraction of CO from local emissions, represents on average 11-16 % of total CO in Athens during wintertime."

BC [black carbon]
CO [carbon monoxide]
• 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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