Past Reports

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  • 2019
  • 2020
  • 2021
  • 2022
  • 2023

15 November 2024

Summary The tree counts are still moderate at some sites and the dominant trees are olive and pecan. Weeds are increasing and plantain is the dominant weed especially in Cape...
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8 November 2024

Summary Means are given for some sites as aerobiologists are at a workshop. Tree pollen is no longer significant, grasses are moderate in Kimberley and Cape Town and weeds remain...
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1 November 2024

Summary Coastal wind and rain reduced the pollen concentrations in Cape Town, George, Gqeberha and Durban. Small tree spikes continued in Bloemfontein and Johannesburg city. No grass or weed peaks...
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25 October 2024

Summary The tree season is ending in Bloemfontein but starting in Kimberley and grasses are moderate in Cape Town. Cape Town Grass concentrations were moderate overall, but high counts occurred...
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18 October 2024

Summary Grasses are increasing at several sites, but intermittent rain reduces their numbers and this explains the low concentrations. Tree pollen is still moderate in Bloemfontein but the counts have...
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11 October 2024

Summary Moderate to high tree counts were seen only in Bloemfontein and Johannesburg, where many alien trees have been planted. Grass and weed pollen was detected in low concentrations at...
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4 October 2024

Summary Tree pollen is decreasing but high counts were seen in Bloemfontein and Johannesburg. Cape Town Pollen in the ambient air was reduced by low temperatures and rain. Trees detected...
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27 September 2024

Summary Tree pollen is still dominating the pollen count, while grasses and weeds are low. Mould concentrations are high in Durban. Cape Town Tree pollen decreased a little as temperatures...
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20 September 2024

Summary The highest tree counts with a large variety in species occurred in Bloemfontein where the dominant trees were false olive, or butterfly bush, plane, white stinkwood, birch and pine....
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13 September 2024

Summary The tree flowering season is in full swing now especially in Johannesburg and Bloemfontein. Dominant trees are plane, mulberry, white stinkwood, oak, olive and false olive. Grasses, weeds and...
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6 September 2024

Summary Tree pollen is now high or moderate at all the inland sites and rising at coastal sites. The allergenic trees: Plane, oak, cypress and olive are at the peak...
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30 August 2024

Summary Tree pollen is reaching high concentrations in Bloemfontein and Johannesburg. Coastal sites have higher tree loads but have just begun their flowering cycle, so the concentrations are still low...
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23 August 2024

Summary Tree pollen is increasing rapidly inland as the trees begin their spring flowering cycle. The pollen of plane, oak, olive, mulberry and cypress is already significant in Johannesburg, Pretoria...
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9 August 2024

Summary Very low temperatures with frost, rain and snow in some areas continue to inhibit the release of pollen and moulds. Despite this, spring trees are stirring and cypress pollen...
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2 August 2024

Summary The bitterly cold weather at most of these sampling sites has persisted, with frost at night and snow on high lying ground in some regions. Cypress is now seen...
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26 July 2024

Summary The continued rain, low temperatures and frost has reduced all pollen and mould loads in the air. Spring tree pollen is seen on days with sun but the concentrations...
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19 July 2024

Summary During this midwinter period with low temperatures, heavy, rain, floods and snow, extremely low pollen and mould concentrations were recorded. Cape Town The spore trap could not be changed...
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12 July 2024

Summary All sampling sites in South Africa reflected the effects of the low temperatures, rain, frost and snow and pollen and mould concentrations were minimal. Cape Town From a waterlogged...
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5 July 2024

Summary Pollen and mould concentrations were low at all the listed sites. The Johannesburg sampling site has come back into operation from this week. Cape Town Pollen and mould concentrations...
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28 June 2024

Summary The low temperatures with snow on high lying ground have reduced pollen and moulds in the air. Low concentrations of early flowering trees like cypress were seen in low...
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21 June 2024

Summary At all the pollen sampling sites across South Africa, pollen and mould concentrations were very low in response to the low temperatures and rain, in this early winter period....
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14 June 2024

Summary Low winter temperature and rain have reduced the pollen and fungal spore (mould) loads in the air to very small amounts. There is a low risk for allergy to...
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7 June 2024

The latest report is delayed but will be posted today. Summary Pollen concentrations are low but the early flowering tree, cypress, is appearing in the air at many sites, indicating...
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31 May 2024

Summary Pollen concentrations are low during this early winter period, but moulds are fluctuating and the allergenic moulds like Cladosporium increase rapidly when rain is followed by sunshine. Cape Town...
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