Low pollen concentrations were seen at all the sampling sites, but tree pollen is increasing in Cape Town as cypress begins its pollen release cycle.
Cape Town:
Pollen concentrations were low but tree pollen is increasing largely due to increased cypress pollen in the atmosphere. Other tree pollen detected was the gum (Myrtaceae), waxberry (Morella spp.) and pine (Pinaceae). Weeds detected were goosefoot (Chenopodiaceae), mallows (Malvaceae) and nettles (Urticaceae). Moulds were low.
Calvinia
This spore trap is not operational.
Johannesburg
Aerobiologists are travelling: No findings available
Pretoria
Aerobiologists are travelling: No findings available
Bloemfontein
Very low pollen and mould concentrations were found from this sampling site. Trees were sumac (Anacardiaceae), cypress (Cupressaceae), mulberry (Moraceae), poplar (Populaceae), karee (Rhus/Searsia) and elm (Ulmaceae), and weeds were the daisy family (Asteraceae).
Kimberley
Extremely low pollen and mould concentrations were seen at this site. Tree pollen included the sumac family (Anacardiaceae), karee (Rhus/Searsia) and beech (Fagus spp.). Weeds were nettles (Urticaceae) and goosefoot (Chenopodiaceae).
Durban
Pollen concentrations remained low at this sampling site. Trees detected were cypress (Cupressaceae), pine (Pinaceae) and mulberry (Moraceae). Weeds were goosefoot (Chenopodiaceae) and nettles (Urticaceae). Moulds were very low.
Gqeberha
Pollen concentrations were low at this sampling site. Trees were acacia (Acacia spp.), waxberry (Morella spp.) and pine (Pinaceae). Weeds were sedges (Cyperaceae) and erica (Ericaceae). Moulds were low but a small spike was seen for basidiospores (includes mushrooms).
Potchefstroom
Extremely low pollen and fungal spore (mould) concentrations formed the catch at this site. Trees were cypress (Cupressaceae), gum (Myrtaceae) and karee (Rhus/Searsia spp.). Weeds were pigweed (Amaranthaceae) and ferns (Polypodiaceae).
