<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.apple-converted-space
{mso-style-name:apple-converted-space;}
span.EmailStyle21
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-CA" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Hi all,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">I’m sharing this article that I thought some might find interesting, it describes a case study on street trees trapping air pollution.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">If others have good resources exploring the cost/benefit of trees on air pollution I would appreciate if you could send them my way, (also any analysis of species selection or design
considerations to maximize this potential ‘ecosystem benefit’). Urban trees improving air quality is mentioned often but other colleagues in the air quality field also share data on negative impacts (e.g. the contribution of some tree species to the development
of ground level ozone). <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Science for Environment Policy: Careful urban tree planting and pruning needed to reduce trapping of air pollution<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><a href="http://ec.europa.eu/environment/integration/research/newsalert/pdf/urban_tree_planting_and_pruning_to_reduce_trapping_air_pollution_403na6_en.pdf">http://ec.europa.eu/environment/integration/research/newsalert/pdf/urban_tree_planting_and_pruning_to_reduce_trapping_air_pollution_403na6_en.pdf</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Thanks in advance,
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span style="font-size:13.0pt;color:#1775BB">Erin Embley</span><span style="color:#1F497D"><br>
</span><b><span style="font-size:10.5pt;color:#666666">Regional Planner,</span></b><span style="color:#1F497D">
</span><span style="font-size:10.5pt;color:#666666">Electoral Area and Environment</span><span style="color:#1F497D"><br>
</span><span style="font-size:10.5pt;color:#888888">Planning, Policy and Environment</span><span style="color:#1F497D"><br>
</span><span style="font-size:10.5pt;color:#888888">t. 604.451.6659</span><span style="color:#1F497D"><br>
</span><span style="font-size:17.5pt;color:#1775BB"><a href="http://www.metrovancouver.org/" title="Metro Vancouver"><b><span style="font-size:21.0pt;color:#1775BB;text-decoration:none">metro</span></b><span style="font-size:21.0pt;color:#1775BB;text-decoration:none">vancouver</span></a></span><span style="color:#1F497D"><br>
</span><span style="font-size:10.0pt;color:#999999">SERVICES AND SOLUTIONS FOR A LIVABLE REGION</span><span style="color:#1F497D"><o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
</div>
</body>
</html>