Summary
Several sites could not process their pollen samples or couriered samples did not reach the laboratories in time for analysis due to the two public holidays this week.
Cape Town
Low pollen counts were seen for all three categories at this site. Trees were Australian pine (Casuarina), gum (Myrtaceae) and poplar (Populaceae), while weeds were goosefoot Chenopodiaceae), mugwort (Artemisia) and erica (Ericaceae). Moulds were low.
Johannesburg
Pollen and moulds remain low. The only tree detected was gum (Myrtaceae). Weeds were the daisy family (Asteraceae), the carnation family (Caryophyllaceae), sedges (Cyperaceae) and lily (Liliaceae). Moulds were low.
Johannesburg South
No data are available for this site.
Pretoria
No data are available for this site.
Bloemfontein
No data are available for this site.
Kimberley
No data are available for this site.
Durban
Pollen concentrations were slight at this site. Trees were gum (Myrtaceae) and weeds were protea (Proteaceae) and nettles (Urticaceae). Moulds were moderate with spikes for ascospores following rain.
Gqeberha
No data are available for this site.
George
Pollen concentrations were low. Trees were cypress (Cupressaceae), gum (Myrtaceae) and false olive (Buddleja). Weeds were mugwort (Artemisia, ferns (Polypodiaceae), nettles (Urticaceae) and goosefoot (Chenopodiaceae). Moulds were low.
Reference Range
Grass: Low: 0-5 Moderate: 6-20 High: 21-200
Trees: Low: 0-15 Moderate: 16-90 High: 91-1500
Weeds: Low: 0-10 Moderate: 10-50 High: 51-500
Moulds: Low: 0-900 Moderate: 900-2500 High 2500-25000
Unit: per cubic metre
