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<i>Interesting result.<br>
</i><br>
Curious. Is the 90% figure based on particle count or weight, or
something else?<br>
<pre class="moz-signature" cols="72">Doc / Dr TLUD / Prof. Paul S. Anderson, PhD
Email: <a class="moz-txt-link-abbreviated" href="mailto:psanders@ilstu.edu">psanders@ilstu.edu</a>
Skype: paultlud Phone: +1-309-452-7072
Website: <a class="moz-txt-link-abbreviated" href="http://www.drtlud.com">www.drtlud.com</a></pre>
<div class="moz-cite-prefix">On 5/9/2018 7:36 AM, Norbert Senf
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAGYvK4fXmb8Cj9PxLxw6aAp4cTbNKM8mPr2UysEirzg3H2c4rw@mail.gmail.com">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<div dir="ltr">Here's an interesting study, published today:<font
size="2"><span style="font-weight:normal"><br>
<br>
"C</span><span style="font-weight:normal">oarse particulate
matter (PM2.5–10) in Los Angeles Basin air induces
expression of inflammation and cancer biomarkers in rat
brains."<br>
</span></font>
<div><font size="2"><span style="font-weight:normal"><a
href="https://www.nature.com/articles/s41598-018-23885-3"
moz-do-not-send="true">https://www.nature.com/articles/s41598-018-23885-3</a><br>
</span></font></div>
<div><br>
</div>
<div><font size="2">What is interesting is that, even with long
term exposure, they only found the specific biomarkers in
PM2.5-10 (coarse PM), but not in ultrafine PM (<0.15 um)
or fine PM (<2.5 um).<br>
</font></div>
<div><font size="2">90% of wood smoke PM is smaller than 1 um. <br>
</font></div>
<div><font size="2"><br>
</font></div>
<div><font size="2">Norbert</font><br>
</div>
<div><font size="2"><span style="font-weight:normal"></span></font></div>
<div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, May 7, 2018 at 3:19 PM,
Norbert Senf <span dir="ltr"><<a
href="mailto:norbert.senf@gmail.com" target="_blank"
moz-do-not-send="true">norbert.senf@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div dir="ltr">(snip)<br>
<div>
<div class="gmail_extra">
<div class="gmail_quote">
<blockquote class="gmail_quote"
style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div>
------------------------------<br>
Crispin Pemberton-Pigott <<a
href="mailto:crispinpigott@outlook.com"
target="_blank" moz-do-not-send="true">crispinpigott@outlook.com</a>>
wrote:<br>
(snip)<span class="gmail-"><br>
The cleaner the air in North America, the
more common asthma there is. Is cleaner
air contributing to the shortening of
lives in North America? On the face of it,
possibly.<br>
</span></div>
(snip)<br clear="all">
</blockquote>
<div><br>
</div>
<div>"Yukon's clean air could be why fewer youth
are hospitalized with asthma"<br>
<a
href="http://www.cbc.ca/news/canada/north/yukon-asthma-hospitalization-cihi-clean-air-1.4639852"
target="_blank" moz-do-not-send="true">http://www.cbc.ca/news/canada/<wbr>north/yukon-asthma-<wbr>hospitalization-cihi-clean-<wbr>air-1.4639852</a></div>
<div><br>
</div>
<div>
<span>
<p><span>"...The report also shows that
asthma hospitalization rates tend to
be higher in urban areas in Canada,
compared to rural and remote areas. </span></p>
<p><span>"Our air is pretty pristine, and
air pollution is shown to be a factor
associated with asthma exacerbation,"
said Brendan Hanley, Yukon's Chief
Medical Officer of Health. </span></p>
<p><span>In places such as Nova Scotia and
Ontario, asthma hospitalization rates
are much higher in urban centres
compared to rural, the report said. A
similar comparison wasn't included
for Yukon because of a lack of data. </span></p>
(snip)
<p><span>But Hanley said Yukon's air quality
is not perfect. He says air pollution
tends to spike in residential areas due
to wood-burning, but those tend to be
short-term exposures. </span></p>
<p><span>Other possible reason for Yukon's
low rate could be attributed to good
access to primary care for children with
asthma and good rates of controls in
terms of medication, according to
Hanley." </span></p>
</span><span class="gmail-HOEnZb"><font
color="#888888">
<br>
</font></span></div>
</div>
<span class="gmail-HOEnZb"><font color="#888888">--
<br>
<div
class="gmail-m_-5555641857791561894gmail_signature">Norbert
Senf<br>
Masonry Stove Builders<br>
25 Brouse Road, RR 5<br>
Shawville Québec J0X 2Y0<br>
819.647.5092<br>
<a href="http://www.heatkit.com"
target="_blank" moz-do-not-send="true">www.heatkit.com</a></div>
</font></span></div>
</div>
</div>
</blockquote>
</div>
<br>
<br clear="all">
<br>
-- <br>
<div class="gmail_signature">Norbert Senf<br>
Masonry Stove Builders<br>
25 Brouse Road, RR 5<br>
Shawville Québec J0X 2Y0<br>
819.647.5092<br>
<a href="http://www.heatkit.com" target="_blank"
moz-do-not-send="true">www.heatkit.com</a></div>
</div>
</div>
</div>
<br>
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