Past Reports

Summary Many sites only restarted their spore traps this week, so no findings are available, Archived pollen counts from this week in January for previous years have been used where...

The website will be paused until mid-January. Grasses are likely to increase in summer rainfall inland cities. Ragweed has started its flowering cycle in Durban and may increase. Summary The...

Summary Grasses are now moderate in Vanderbijlpark (a city south of Johannesburg), Kimberley and Pretoria. Trees, weeds and moulds were flat at all sites. Cape Town At this time of...

Summary Grasses are increasing in Kimberley, trees are low at all sites except Vanderbijlpark, south of Johannesburg and weeds and moulds were detected in low concentrations at all sites. Cape...

Summary Tree pollen is slowly disappearing from the air this year. The dominant tree at many sites is now gum, while plantain, or ribwort is the dominant weed. Cape Town...

Summary Grasses were low at all sampling sites. Tree pollen is still moderate in some inland cities such as Bloemfontein and Johannesburg. Cape Town Pollen was generally low but grasses...

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...

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...

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...

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...

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...

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...

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...

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...

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....

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...

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...

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...

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...

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...

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...

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...

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...

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...