What's New List Serve Post Display

What's New List Serve Post Display

Below is the List Serve Post you selected to display.
newsrel -- Study shows toxicity of components of California fine particle air pollution

Posted: 19 Feb 2013 09:57:09
New UC study released by Air Resources Board and Electric Power
Research Institute. 

Contact: Dave Clegern
PIO Phone: 916-322-2990

SACRAMENTO—The Air Resources Board and the Electric Power
Research Institute have released a report by investigators at the
University of California, Davis. The new study looks at the
toxicity of various components of fine particle air pollution
(PM2.5), including ultrafine particles.
Previous research has shown that PM 2.5 is associated with
asthma, heart disease and premature death.

The investigators introduced particles collected from different
air samples into laboratory mice and looked for indicators of
respiratory and cardiovascular effects, such as markers of
inflammation in lungs and blood. The samples were collected with
a system that classified particles according to their chemical
composition, thereby enabling researchers to associate the
particles to different sources. 

The analysis showed different levels of toxicity for different PM
samples. The samples were associated with a variety of sources,
such as traffic and wood smoke. Also, ultrafine particles were
more potent inducers of inflammatory markers and cell death than
larger particles. The air samples used in this study were
collected in Fresno, California. 

The research was conducted by Dr. Anthony Wexler, director of the
Air Quality Research Center at the University of California,
Davis. Dr. Wexler developed a novel methodology using a single
particle mass spectrometer and ten particle samplers to analyze
and separate ambient particles. 

Laboratory mice were exposed to the separated particles, and
their responses were monitored for signs of toxicity by Dr. Kent
Pinkerton, a professor of pediatrics at the UC Davis School of

Drs. Wexler and Pinkerton will be holding a seminar to discuss
this study at the CalEPA Building, 1001 I Street, Sacramento,
95812 on Tuesday, February 19, 2013 at 1:30 P.M. A link to the
seminar description is here: 


Read the study here:

For information about the Electric Power Research Institute
(EPRI), go to: http://www.epri.com

ARB What's New