Pollen is low in Yorkshire and the Humber today.

Yorkshire and the Humber sees the typical UK pollen calendar, with a tree-led spring peak and a grass-led early summer.

Tree pollen here is dominated by oak, birch and ash, with grass led by ryegrass, timothy and cocksfoot and weeds by nettle and mugwort.

Tree pollen typically peaks in April. Grass counts are highest from late May to early July. Follows the typical UK pattern of a tree peak in spring and a long grass season into early summer.

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