Pollen count for the region St Helens
oak
ash
hazel
grasses
willow
poplar
alder
plantain
nettle
mugwort
elm
birch
yew
rumex
oak
nettle
grasses
poplar
ash
alder
plantain
mugwort
hazel
elm
birch
yew
willow
rumex
oak
ash
plantain
nettle
grasses
poplar
alder
mugwort
hazel
elm
birch
yew
willow
rumex
oak
plantain
nettle
grasses
poplar
ash
alder
mugwort
hazel
elm
birch
yew
willow
rumex
oak
plantain
nettle
grasses
poplar
ash
alder
mugwort
hazel
elm
birch
yew
willow
rumex
oak
plantain
nettle
grasses
ash
alder
mugwort
hazel
elm
birch
yew
willow
rumex
poplar
oak
ash
plantain
nettle
grasses
alder
mugwort
hazel
elm
birch
yew
willow
rumex
poplar
