Mercury emissions from domestic biomass combustion

Research studies on wood smoke and other air pollution.

Mercury emissions from domestic biomass combustion

Postby Wilberforce » Sat Jun 29, 2013 7:48 pm

NEW LINK
Mercury (Hg) emissions from domestic biomass combustion for space heating.
Huang et al
http://www.ncbi.nlm.nih.gov/pubmed/21620435
Abstract
Three mercury (Hg) species (gaseous elemental mercury (GEM), gaseous oxidized mercury (GOM), and fine particulate-bound mercury (PBM2.5)) were measured in the stack of a small scale wood combustion chamber at 400 ° C, in the stack of an advanced wood boiler, and in two areas influenced by wood combustion. The low temperature process (lab-scale) emitted mostly GEM (~ 99% when burning wood pellets and ~ 95% when burning unprocessed wood) . The high temperature wood boiler emitted a greater proportion of oxidized Hg (approximately 65%) than the low temperature system. In field measurements, mean PBM2.5 concentrations at the rural and urban sites in winter were statistically significantly higher than in warmer seasons and were well correlated with Delta-C concentrations, a wood combustion indictor measured by an aethalometer (UV-absorbable carbon minus black carbon). Overall the results suggest that wood combustion may be an important source of oxidized mercury (mostly in the particulate phase) in northern climates in winter.
• 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!
User avatar
Wilberforce
 
Posts: 6093
Joined: Wed Jul 25, 2007 11:36 pm
Location: USA

Return to Particle Pollution Research

Who is online

Users browsing this forum: No registered users and 1 guest

cron