Air quality
Air quality in Bridgend today
Updated
Good (US AQI 48) Air quality is satisfactory and poses little or no risk; a good time for outdoor activity. Model estimate for Fri, Nov 6, 1:00 am (01:00 UTC).
Air quality in Bridgend right now
Right now the modelled US Air Quality Index for Bridgend, Wales, United Kingdom is 48, which falls in the "Good" band (up to 50). Air quality is satisfactory and poses little or no risk; a good time for outdoor activity.
The index is driven mainly by PM2.5, whose own sub-index is 48. Fine and coarse particles come from traffic, heating, industry, dust and smoke; they build up on calm nights and clear when wind or rain arrives.
PM2.5 is 14 µg/m³, within the WHO 24-hour guideline of 15 µg/m³; PM10 is 18 µg/m³ against a guideline of 45; ozone is 34 µg/m³ (below the WHO 8-hour level of 100); nitrogen dioxide is 11 µg/m³ (below the 24-hour guideline of 25).
Also this hour: carbon monoxide 184 µg/m³.
Live AQI, PM2.5, PM10 and ozone for Bridgend, Wales, United Kingdom, with a 48-hour forecast and the best time to be outside.
- US AQI now
- 48 Good
- PM2.5
- 14 µg/m³ 0.9× WHO 24-h guideline
- PM10
- 18 µg/m³
- Ozone
- 34 µg/m³
- Dominant pollutant
- PM2.5 sub-index 48
- Best hour today
- 6:00 am AQI 53
- European AQI
- 38
Bridgend AQI forecast: next 48 hours
Over the next 24 hours the AQI is forecast to range from 48 around Fri 1:00 am to 70 around Sat 1:00 am, from "Good" at best to "Moderate" at worst.
The following day is expected to be worse, averaging about 78 against 58 for the next 24 hours.
| Local time (Europe/London) | US AQI | Category | PM2.5 µg/m³ | PM10 µg/m³ | Ozone µg/m³ |
|---|---|---|---|---|---|
| Fri 1:00 am | 48 | Good | 14.1 | 18 | 34 |
| Fri 4:00 am | 51 | Moderate | 15 | 18 | 36 |
| Fri 7:00 am | 54 | Moderate | 17.2 | 21 | 31 |
| Fri 10:00 am | 56 | Moderate | 18.6 | 23 | 32 |
| Fri 1:00 pm | 59 | Moderate | 18.2 | 22 | 35 |
| Fri 4:00 pm | 61 | Moderate | 19.7 | 23 | 35 |
| Fri 7:00 pm | 64 | Moderate | 23.8 | 27 | 23 |
| Fri 10:00 pm | 67 | Moderate | 27.9 | 31 | 22 |
| Sat 1:00 am | 70 | Moderate | 26.4 | 29 | 27 |
| Sat 4:00 am | 73 | Moderate | 25.5 | 28 | 27 |
| Sat 7:00 am | 76 | Moderate | 27.1 | 31 | 19 |
| Sat 10:00 am | 78 | Moderate | 27.2 | 31 | 19 |
| Sat 1:00 pm | 80 | Moderate | 25.9 | 29 | 36 |
| Sat 4:00 pm | 81 | Moderate | 23.6 | 27 | 37 |
| Sat 7:00 pm | 82 | Moderate | 26.9 | 31 | 22 |
| Sat 10:00 pm | 83 | Moderate | 26.2 | 28 | 17 |
| Sun 1:00 am | 82 | Moderate | 19.1 | 21 | 14 |
Every third hour of the CAMS forecast via Open-Meteo. US AQI uses rolling averages (24 h for particles, 8 h for ozone), so it moves more slowly than the hourly concentrations.
Best time to be outside in Bridgend today
Between 6 am and 9 pm local time, the cleanest air today is forecast around 6:00 am (AQI 53, Moderate) and the worst around 9:00 pm (AQI 66). That is a swing of 13 points, so a run or walk around 6:00 am is noticeably better.
Bridgend vs the rest of United Kingdom
Across 43 United Kingdom cities we track, the average US AQI right now is 41 (Good). Bridgend at 48 is 7 points worse than average.
For context, the median across 2,646 cities worldwide is 64.
Air quality in cities near Bridgend
| City | Distance | US AQI | Category | PM2.5 µg/m³ |
|---|---|---|---|---|
| Cardiff | 28 km | 48 | Good | 13.9 |
| Swansea | 28 km | 49 | Good | 13.4 |
| Bristol | 68 km | 51 | Moderate | 15.3 |
| Yate | 80 km | 51 | Moderate | 15.3 |
Model vs measured
The nearest measured PM2.5 reading is 34 µg/m³ from Sensor.Community (median of 4 sensors), centred about 17 km from the city centre. That is 20.2 µg/m³ above the model estimate of 14 µg/m³. Low-cost sensors can read high in humid air; reference monitors are more accurate but sparser.
Advice for sensitive groups
With the AQI at 48, there is no need for sensitive groups to change plans. People with asthma should still carry their reliever inhaler as usual.
What the US AQI numbers mean
| US AQI | Category | What it means |
|---|---|---|
| 0-50 | Good | Air quality is satisfactory and poses little or no risk; a good time for outdoor activity. |
| 51-100 | Moderate | Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors. |
| 101-150 | Unhealthy for Sensitive Groups | People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors. |
| 151-200 | Unhealthy | Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed. |
| 201-300 | Very Unhealthy | Health alert: everyone should avoid prolonged or heavy exertion outdoors, and sensitive groups should stay indoors. |
| 301-500 | Hazardous | Emergency conditions: everyone should avoid all outdoor physical activity and stay indoors with filtered air if possible. The scale tops out at 500; heavier dust or smoke is shown as 500. |
Values on this page are modelled by CAMS (Copernicus) and served by Open-Meteo; they are estimates for the area around the city centre, not readings from an official monitor.
Nearby cities
More for Bridgend
Air quality elsewhere
Guides
Data: Open-Meteo Air Quality API, Copernicus Atmosphere Monitoring Service (CAMS), Sensor.Community.