Weekly Report

17 July 2020

City
Overall Risk
Tree Pollen
Grass Pollen
Weed Pollen
Mould Spores
Cape Town
Johannesburg
Bloemfontein
Durban
Pretoria
Port Elizabeth
Kimberley

Cape Town

The spore trap failed and so the findings for this week are based on the findings of the previous week and 10 years’ archived data. Tree pollen detected at this time of the year includes low levels of cypress, gum, pine and oak. Grass pollen is very low and weeds are also low and include Erica, the daisy family, nettle and rush.

Johannesburg

Grasses were low on average but increased to moderate levels towards the end of the week. Trees were low and included the types: Cypress, gum, pine and Rhus/Searsia. Weed levels were low and included ferns, the daisy family and goosefoot. Moulds were low.

Pretoria

Grasses were low, trees were also low and only cypress was detected. Weeds were similarly low and included sorrel and Stoebe (slangbos). Moulds were very low.

Bloemfontein

Grasses were low at this sampling site as were trees. Only Rhus/Searsia and cypress were detected. Stoebe (slangbos) was the only weed found. Mould levels were very low.

Kimberley

Low scores for grasses were seen during this dry period with strong wind. Tree loads were low and just one grain of Rhus/Searsia pollen was detected. Weed pollen was low with only Artemisia (mugwort or sagebrush) detected. Moulds were very low.

Durban

Grasses were low, trees were low and included Casuarina and Saxifrage. Low weed levels included the daisy family, goosefoot, nettle, Stoebe (slangbos) and ferns. Moulds were low.

Port Elizabeth

Grasses were low. Trees were low and included the types: Pine, gum, Anacardiaceae (the sumac and cashew family, also mango) and waxberry. Low weeds were identified as the daisy family, Stoebe (slangbos) sedge and protea. Moulds were low.

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