Weekly Report

28 August 2020

City
Overall Risk
Tree Pollen
Grass Pollen
Weed Pollen
Mould Spores

Cape Town

Grasses remained low at this sampling site but tree pollen levels increased as significant numbers of cypress were detected. Other flowering trees were low and included plane, oak and pine. Weeds were low and included Artemisia (mugwort) ferns, sorrel and English Plantain. Moulds were low.

Johannesburg

Grasses were very low. Tree levels were high as significant levels were seen for plane. Other flowering trees included casuarina, cypress, gum, birch, white mulbery, bush willow, oak, pine and rhus. Weed levels were low and included goosefoot, sedge grass, the daisy family, the pink or carnation family, erica and euphorbia, an indigenous shrub. Moulds were low.

Pretoria

The clock mechanism stopped on day 4 so these findings are probably not representative. Grasses were low, no weeds were detected and trees were low to moderate. Flowering trees included cypress, pine and moderate levels of white mulberry. Moulds were low.

Bloemfontein

Grasses were low but tree pollen increased as significant levels were detected for cypress and ash. Other flowering trees included, mesquite, Rhus/Searsia, pine, white stinkwood and plane. Only the daisy family represented the weeds and moulds were very low.

Kimberley

Grasses remained low but tree counts are increasing. Significant levels were seen for cypress and other flowering tree types included white mulberry, willow, rhus, olive and pine. No weed pollen was detected and moulds were extremely low.

Durban

Very little grass pollen was detected. Tree pollen was low and included, pine, yellowwood, white mulberry and cypress. Weed pollen was also low and the types were Erica and reeds. Moulds were very low.

Gqeberha

Grasses were very low. Tree levels were low and included the types pine, olive, gum, waxberry and Anacardiaceae (the mango, cashew, rhus family). Weeds were similarly low and the types detected were sedge grass and lily. Moulds were low.