Weekly Report

19 March 2021

City
Overall Risk
Tree Pollen
Grass Pollen
Weed Pollen
Mould Spores

Cape Town

Grass levels were low. Tree and weed pollen counts were also low. Tree pollen types included eucalyptus (Myrtaceae), karee (Rhus), pepper tree (Schinus sp.) and elm (Ulmus). Weed pollen detected were waxberry (Morella sp.), the daisy family (Asteraceae), nettles (Urticaceae), goosefoot (Chenopodiaceae) and English plantain (Plantago sp.). Fungal spore counts were low.

Johannesburg

Grass levels were high. Tree levels were low but varied. The types detected were bush willow (Combretaceae), cypress (Cupressaceae), Australian pine or beefwood (Casuarina), mulberry (Moraceae), eucalyptus (Myrtaceae), pine (Pinaceae), plane (Platanus), poplar (Populaceae), oak (Quercus) and elm (Ulmaceae). The low weed levels included goosefoot (Chenopodiaceae), the daisy family (Asteraceae), the carnation family (Caryophyllaceae), ferns (Polypodiaceae), protea (Proteaceae), the spurge family (Euphorbiaceae) and heather (Ericaceae). Moulds were low.

Pretoria

Grasses were moderate. Low tree levels included eucalyptus (Myrtaceae), pine (Pinaceae) and marula (Sclerocarya). Low weed levels were detected and the types included were goosefoot (Chenopodicaeae), English plantain (Plantaginaceae) and the spurge family (Euphorbiaceae). Moulds were low.

Bloemfontein

Grass counts were high. Tree and weed counts were low. Tree pollen detected were acacia (Acacia sp.), eucalyptus (Myrtaceae sp.), pine (Pinus sp.), olive (Oleaceae) and karee (Rhus sp.). Weed pollen included the daisy family (Asteraceae) and goosefoot (Chenopodiaceae). Fungal spore counts were low.

Kimberley

Grass levels were high. Grass types identified included maize (Zea mays). Low tree levels were detected, and the types were eucalyptus (Myrtaceae), the pea family (Fabaceae), kareeboom (Rhus/Searsia) and waxberry (Morella). Low weed types detected were the daisy family (Asteraceae), goosefoot (Chenopodiaceae) and nettle (Urticaceae). Moulds were low.

Durban

The pollen strip has not yet reached the laboratory for analysis.

Gqeberha

Grass levels were low. Tree and weed pollen levels were also low. Tree pollen types included waxberry (Morella) and acacia (Acacia sp.). Weed pollen detected were the daisy family (Asteraceae), sedges (Cyperaceae), goosefoot (Chenopodiaceae), English plantain (Plantago sp.) and nettles (Urticaceae). Mould levels were low.

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