Canberra Pollen Count results are in for 2015

Earlier in the season I predicted that this season would be a “Godzilla” hay fever season, and while this was true for the early part of the season a period of unusually high rainfall for early November led to much lower counts than expected for the peak November period. In the severe season of 2014 just under 2500 grass pollen grains were caught in our trap over the October-December recording period. Over the same period in 2015 the total was 2150, which is an average of just over 23 grass pollen grains per day, a number that sits within our moderate range. We only had 9 days that were HIGH or SEVERE pollen days compared to 30 in 2014, though if the heavy rains of early November had not occurred then this number would have been much higher.

Figure 1. Top graph shows the cumulative pollen load for Canberra illustrated as the minimum, average and maximum for years since recording began in 2007 (Oct-Dec recording period). The pollen load for 2015 up until the end of December is depicted in red. The bottom graph shows the long term average and standard deviation for an entire year based on historic records of grass pollen in Canberra. High rainfall period (total = 64mm) recorded in first 2 weeks of November 2015.

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Farewell from the pollen count for 2015

Thanks for your support and interest in our work.  The Canberra Pollen Count is over for 2015 but we will be back bigger and better than ever in Spring 2016.

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Learn more about pollen - Paterson's Curse

Paterson’s Curse (Species, Echium plantagineum; Family, Boraginaceae)

Paterson’s Curse (Echium plantagineum) is a winter annual plant originating in Europe, northern Africa, and southwestern Asia. In the 1850s it was introduced to Australia, probably both as an accidental contaminate of pasture seed and as an ornamental plant. Paterson's Curse is now a dominant broadleaf pasture weed through much of southern Australia and also infests native grasslands, heathlands and woodlands. It is wind and insect pollinated and produces large amounts of pollen during September to January.

A high proportion of people with respiratory allergies test positive to Paterson’s Curse pollen in Australia making it a significant allergy risk for rural as well as urban populations. 

 

Distribution of Paterson's Curse (Atlas of Living Australia occurrence map)

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