What's New List Serve Post Display

What's New List Serve Post Display

Below is the List Serve Post you selected to display.
arbcombo -- Research – Understanding Ultrafine Particles in CA Houses and Schools -- Final Report is Available

Posted: 15 Apr 2010 08:47:52
The final research report for the study titled “ULTRAFINE
PARTICLE CONCENTRATIONS IN SCHOOLROOMS AND HOMES,” conducted by
Doctor William Nazaroff, in conjunction with the University of
California, Berkeley, has been posted to ARB’s website.  The
primary goal of this project was to better understand the nature
and concentration of ultrafine particles (UFP) in houses and
classrooms. The researchers conducted experiments on UFP and
co-pollutants in seven houses and six classrooms in the East Bay
near San Francisco, California.  The researchers collected
time-resolved measurements of particle number concentrations both
indoors and outdoors as well as measurements of nitric oxide,
ozone, carbon dioxide and carbon monoxide.

This research provides us with a better picture of how building
factors, human occupancy and indoor source use influence
concentrations of, and exposure to, ultrafine particles. The
researchers found that particle levels in classrooms and houses
were much higher when people occupied those environments. In
houses this was due to particles from both indoor and outdoor
sources. Indoor sources included cooking and the use of natural
gas furnaces and candles. In classrooms particle levels primarily
depended on outdoor air entering the classroom through
infiltration, mechanical ventilation, and the opening of doors
and windows. The researchers also found that people were exposed
to a higher daily average particle number of UFP in houses than
in classrooms.

The Air Resources Board sponsored this research as contract
05-305.

You may access the full report on our website at
http://www.arb.ca.gov/research/apr/past/indoor.htm.

You may find additional information about the Board’s Research
Program at http://www.arb.ca.gov/research/research.htm, and
additional information about the Board’s Indoor Air Quality
Program and activities at
http://www.arb.ca.gov/research/indoor/INDOOR.HTM.

If you have problems accessing the report or the web pages,
please contact Heather Choi at hchoi@arb.ca.gov or 916-322-3893.
For questions regarding the report’s content please contact
Stephanie Parent at either sparent@arb.ca.gov or 916-324-0551.


You are receiving this single arbcombo email because you are a
subscriber to or have made a public comment to one or more of the
following lists: indoor, research.

ARB What's New

preload