<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class="">Hi Verna:</div><div class=""><br class=""></div><div class="">Was also wondering what the intent of the research is? Since the way you have phrased your question would lead me to believe you don’t know that pollen doesn’t cause asthma, I am wondering about the quality of the research you might have found to date.</div><div class=""><br class=""></div><div class="">As I mentioned in my first posting, referenced below, asthma is often used as an excuse to not plant trees in disenfranchised neighborhoods where the incidence of asthma is high, usually caused by the siting of such known air polluters as factories, electric plants, etc.</div><div class=""><br class=""></div><div class="">Thanks</div><div class="">Naomi</div><div class=""><br class=""></div><div class=""><font color="#53d5fd" class="">"The prevalence of asthma among disenfranchised communities has often been used as an excuse to not plant trees in these neighborhoods, thus compounding the problem’s instigation.</font><div class=""><font color="#53d5fd" class=""><br class=""></font></div><div class=""><font color="#53d5fd" class="">Asthma is caused by pollutants and can be exacerbated by pollen. Pollen is not a CAUSE of asthma. If you are doing research into this, you should be aware of the cause of the problem so you are able to evaluate papers that discuss the problem</font></div><div class=""><font color="#53d5fd" class=""><br class=""></font></div><div class=""><font color="#53d5fd" class="">I live in a city that has a very large population of Platanus x acerifolia and there is no indication whatsoever of a high incidence of asthma."</font></div></div><div class=""><br class=""></div><div class=""><blockquote type="cite" class=""><div class=""><div dir="auto" class=""><div class=""><div class=""><div dir="ltr" class="">On 19 Oct 2018, at 18:51, Verna Mumby via CANUFNET <<a href="mailto:canufnet@list.web.net" class="">canufnet@list.web.net</a>> wrote:<br class=""><br class=""></div><blockquote type="cite" class=""><div dir="ltr" class=""><font face="Calibri" class="">Request to the network for research papers on <i class="">Platanus </i>pollen causing asthma in North America.<br class="">I found research papers from many countries but none from USA or Canada. <br class=""><br class="">Regards,<br class="">Verna<br class=""></font><div class="moz-signature">-- <br class="">Mumby's Arboriculture Consulting<br class=""><b class="">Verna Mumby 250-218-6951</b><br class="">ISA Certified Arborist PR-0113A<br class="">Member, Society of Consulting Arborists<br class="">ISA Tree Risk Assessment Qualified<br class="">BC Wildlife Danger Tree Assessor P1128<br class=""><a href="http://www.treelady.ca/" class="">www.treelady.ca</a> <b class="">NEW WEBSITE! <b class=""><br class=""><a class="moz-txt-link-freetext" href="https://www.ted.com/talks/suzanne_simard_how_trees_talk_to_each_other">https://www.ted.com/talks/suzanne_simard_how_trees_talk_to_each_other</a>?</b></b></div></div></blockquote></div></div></div></div></blockquote></div></body></html>