[CANUFNET] London Plane trees and asthma

[Verna Mumby via CANUFNET]

Request to the network for research papers on /Platanus /pollen causing 
asthma in North America.
I found research papers from many countries but none from USA or Canada.

Regards,
Verna
-- 
Mumby's Arboriculture Consulting
*Verna Mumby 250-218-6951*
ISA Certified Arborist PR-0113A
Member, Society of Consulting Arborists
ISA Tree Risk Assessment Qualified
BC Wildlife Danger Tree Assessor P1128
www.treelady.ca <http://www.treelady.ca> *NEW WEBSITE! *
https://www.ted.com/talks/suzanne_simard_how_trees_talk_to_each_other?
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