Today's air quality over Leeds and the grass pollen count in season — plain language, updated through the day.
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A plain-language check on the air over Leeds — and, in season, the pollen count. Updated through the day.
Fair Fine for being outside, including exercise, for almost everyone.
Peak modelled counts for today. Hay fever symptoms typically start when counts pass about 50 grains/m³ — grass is the one that affects most people in the UK (May–July); birch is a spring tree pollen (March–May).
| Pollen | Level | Peak today |
|---|---|---|
| Grass | Moderate | 34 grains/m³ |
| Birch | Low | 0 grains/m³ |
| Day | Air quality | Grass pollen |
|---|---|---|
| Sun 12 Jul | Fair | Low |
| Mon 13 Jul | Fair | Low |
| Tue 14 Jul | Fair | Low |
| Wed 15 Jul | Fair | — |
Leeds planned a charging Clean Air Zone, then called it off in 2020: a joint review with government found nitrogen dioxide on the key routes had already fallen below legal limits, largely because buses, lorries and taxis switched to cleaner vehicles faster than expected. The council kept £6.9m of the funding for clean-vehicle grants. Most days the air here reads Good or Fair — this page is for spotting the exceptions.
June and July are peak grass pollen in Yorkshire, and grass drives most hay fever in the UK. On high days, counts are often worst in the early morning and again in the early evening, when pollen lifts and settles.
Updated . These are modelled estimates for the area around Leeds city centre, not readings from a street monitor — air right beside a busy road can be worse than the area-wide picture. Official forecast: uk-air.defra.gov.uk. Air quality data by Open-Meteo (CC BY 4.0), based on Copernicus CAMS.