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asthma_thunderstorm [2026/09/29 12:05] – [Grass pollen counts in Melbourne] gary1asthma_thunderstorm [2026/09/29 12:05] (current) – [Grass pollen counts in Melbourne] gary1
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   *counts start to rise in mid-October and peak at end of November and return to minimal levels by end of December (([[http://www.theage.com.au/victoria/hay-fever-why-spring-is-the-cruelest-season-for-sufferers-20150904-gjf46t.html]])).   *counts start to rise in mid-October and peak at end of November and return to minimal levels by end of December (([[http://www.theage.com.au/victoria/hay-fever-why-spring-is-the-cruelest-season-for-sufferers-20150904-gjf46t.html]])).
-  *Grass pollen seasons in Melbourne range from minimal cumulative daily counts of around 1,000 pollen counts (grains/m3) over the season such as occurred in 2015, to over 6,700 which occurred in 1993. +  *grass pollen seasons in Melbourne range from minimal cumulative daily counts of around 1,000 pollen counts (grains/m3) over the season such as occurred in 2015, to over 6,700 which occurred in 1993. 
-  *Severity can be predicted by determining the amount of green in regional rural regions on satellite images. +  *severity can be predicted by determining the amount of green in regional rural regions on satellite images. 
-  *An extreme day has daily average pollen counts over 100 grass pollen grains per cubic metre of air.+  *an extreme day has daily average pollen counts over 100 grass pollen grains per cubic metre of air.
  
 =====history of thunderstorm asthma events===== =====history of thunderstorm asthma events=====
asthma_thunderstorm.txt · Last modified: 2026/09/29 12:05 by gary1

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