What are the current PM10 levels at St Albans, Hertfordshire?

The current PM10 levels in St Albans, Hertfordshire are 18.955 μg/m3.

What are the current sulfur dioxide (SO2) levels at St Albans, Hertfordshire?

The current sulfur dioxide (SO2) levels in St Albans, Hertfordshire are 0.742 ppb.

What are the current ozone (O3) levels at St Albans, Hertfordshire?

The current ozone (O3) levels at St Albans, Hertfordshire is 23.684 ppm.

What are the current nitrogen dioxide (NO2) levels at St Albans, Hertfordshire?

The current nitrogen dioxide (NO2) levels at St Albans, Hertfordshire is 5.379 ppb.

Real-time air quality index in St Albans, Hertfordshire today

Q: What are the current PM2.5 levels in St Albans, Hertfordshire?

The measured PM2.5 levels in St Albans, Hertfordshire at present are 5.842 μg/m3.

Stay updated with real-time air quality in St Albans, Hertfordshire featuring accurate data on AQI, PM_2.5, PM₁₀, O₃, NO₂, SO₂, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.

Live AQI (Air Quality Index)

Good

St Albans, Hertfordshire

Last updated: ... (Local time)

Common air pollutants in St Albans, Hertfordshire

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

6.01 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

14.77 μg/m³

155

255

425

605+

Ozone (O₃)

21.82 ppb

201

201+

Sulfur Dioxide (SO₂)

0.89 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

9.11 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.30 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

St Albans, Hertfordshire

Get Live Pollen Counts

St Albans, Hertfordshire

Scroll To Air Quality Map

Track live St Albans, Hertfordshire air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-11-06T05:00:00.000Z	38 \| good	6.603 \| good	8.64 \| good	24.252 \| good	0.299 \| good	4.007 \| good	0.117 \| good
2025-11-06T06:00:00.000Z	44 \| good	8.031 \| good	28.523 \| good	20.44 \| good	0.536 \| good	9.001 \| good	0.01 \| good
2025-11-06T07:00:00.000Z	44 \| good	8.442 \| good	24.925 \| good	16.423 \| good	0.863 \| good	5.113 \| good	0.603 \| good
2025-11-06T08:00:00.000Z	44 \| good	7.676 \| good	17.815 \| good	14.165 \| good	0.675 \| good	8.403 \| good	0.012 \| good
2025-11-06T09:00:00.000Z	38 \| good	7.054 \| good	26.039 \| good	16.008 \| good	1.021 \| good	21.106 \| good	0.514 \| good
2025-11-06T10:00:00.000Z	44 \| good	7.594 \| good	30.99 \| good	19.692 \| good	0.682 \| good	12.749 \| good	0.009 \| good
2025-11-06T11:00:00.000Z	44 \| good	7.922 \| good	28.95 \| good	18.436 \| good	0.607 \| good	13.17 \| good	0.01 \| good
2025-11-06T12:00:00.000Z	38 \| good	7.391 \| good	23.8 \| good	14.776 \| good	0.679 \| good	10.933 \| good	0.006 \| good
2025-11-06T13:00:00.000Z	44 \| good	7.73 \| good	22.926 \| good	10.818 \| good	0.738 \| good	10.404 \| good	0.005 \| good
2025-11-06T14:00:00.000Z	44 \| good	7.502 \| good	26.061 \| good	12.094 \| good	0.958 \| good	9.234 \| good	0.005 \| good
2025-11-06T15:00:00.000Z	33 \| good	6.441 \| good	19.985 \| good	14.313 \| good	0.913 \| good	15.099 \| good	0.006 \| good
2025-11-06T16:00:00.000Z	38 \| good	7.356 \| good	25.5 \| good	13.682 \| good	0.817 \| good	12.271 \| good	0.008 \| good
2025-11-06T17:00:00.000Z	33 \| good	5.63 \| good	20.28 \| good	19.248 \| good	0.64 \| good	13.234 \| good	0.015 \| good
2025-11-06T18:00:00.000Z	44 \| good	7.821 \| good	32.369 \| good	20.523 \| good	0.842 \| good	13.816 \| good	0.022 \| good
2025-11-06T19:00:00.000Z	49 \| good	9.208 \| good	28.651 \| good	21.478 \| good	1.042 \| good	11.39 \| good	0.017 \| good
2025-11-06T20:00:00.000Z	38 \| good	6.716 \| good	24.043 \| good	16.112 \| good	0.797 \| good	14.534 \| good	0.02 \| good
2025-11-06T21:00:00.000Z	38 \| good	7.46 \| good	32.816 \| good	16.605 \| good	0.764 \| good	20.639 \| good	0.015 \| good
2025-11-06T22:00:00.000Z	49 \| good	9.228 \| good	21.84 \| good	17.795 \| good	1 \| good	15.461 \| good	0.019 \| good
2025-11-06T23:00:00.000Z	44 \| good	7.846 \| good	29.059 \| good	19.771 \| good	0.665 \| good	15.558 \| good	0.021 \| good
2025-11-07T00:00:00.000Z	38 \| good	7.268 \| good	35.859 \| good	13.024 \| good	1.236 \| good	13.298 \| good	0.553 \| good
2025-11-07T01:00:00.000Z	44 \| good	8.04 \| good	31.156 \| good	8.674 \| good	1.297 \| good	18.777 \| good	0.485 \| good
2025-11-07T02:00:00.000Z	52 \| moderate	10.418 \| good	34.312 \| good	7.182 \| good	1.085 \| good	14.042 \| good	0.441 \| good
2025-11-07T03:00:00.000Z	44 \| good	8.216 \| good	27.916 \| good	5.25 \| good	1.431 \| good	9.729 \| good	0.401 \| good
2025-11-07T04:00:00.000Z	44 \| good	8.362 \| good	37.26 \| good	9.06 \| good	1.815 \| good	6.145 \| good	0.34 \| good
2025-11-07T05:00:00.000Z	49 \| good	9.069 \| good	36.163 \| good	14.81 \| good	1.619 \| good	11.314 \| good	0.338 \| good
2025-11-07T06:00:00.000Z	49 \| good	8.586 \| good	23.695 \| good	11.135 \| good	0.447 \| good	10.708 \| good	0.008 \| good
2025-11-07T07:00:00.000Z	38 \| good	7.232 \| good	36.582 \| good	12.428 \| good	1.627 \| good	8.931 \| good	0.011 \| good
2025-11-07T08:00:00.000Z	49 \| good	8.61 \| good	30.782 \| good	15.548 \| good	0.58 \| good	10.403 \| good	0.009 \| good
2025-11-07T09:00:00.000Z	54 \| moderate	11.365 \| good	12.84 \| good	12.242 \| good	0.754 \| good	15.237 \| good	0.15 \| good
2025-11-07T10:00:00.000Z	52 \| moderate	10.289 \| good	11.726 \| good	12.182 \| good	0.742 \| good	15.396 \| good	0.143 \| good
2025-11-07T11:00:00.000Z	49 \| good	8.711 \| good	10.085 \| good	14.026 \| good	0.805 \| good	13.391 \| good	0.144 \| good
2025-11-07T12:00:00.000Z	38 \| good	7.19 \| good	9.343 \| good	16.037 \| good	0.64 \| good	11.512 \| good	0.143 \| good
2025-11-07T13:00:00.000Z	52 \| moderate	10.483 \| good	27.92 \| good	18.659 \| good	0.509 \| good	13.87 \| good	0.008 \| good
2025-11-07T14:00:00.000Z	54 \| moderate	11.409 \| good	31.134 \| good	16.576 \| good	0.506 \| good	11.659 \| good	0.01 \| good
2025-11-07T15:00:00.000Z	49 \| good	8.594 \| good	29.403 \| good	15.722 \| good	0.509 \| good	12.045 \| good	0.01 \| good
2025-11-07T16:00:00.000Z	52 \| moderate	10.429 \| good	20.54 \| good	17.604 \| good	0.631 \| good	15.286 \| good	0.011 \| good
2025-11-07T17:00:00.000Z	49 \| good	8.65 \| good	31.49 \| good	20.176 \| good	0.567 \| good	14.158 \| good	0.013 \| good
2025-11-07T18:00:00.000Z	38 \| good	7.407 \| good	29.281 \| good	18.04 \| good	1.667 \| good	21.696 \| good	0.016 \| good
2025-11-07T19:00:00.000Z	54 \| moderate	10.543 \| good	23.816 \| good	18.622 \| good	0.639 \| good	15.838 \| good	0.02 \| good
2025-11-07T20:00:00.000Z	49 \| good	9.487 \| good	26.956 \| good	18.184 \| good	0.55 \| good	15.363 \| good	0.019 \| good
2025-11-07T21:00:00.000Z	52 \| moderate	9.754 \| good	22.351 \| good	18.184 \| good	0.484 \| good	17.324 \| good	0.018 \| good
2025-11-07T22:00:00.000Z	52 \| moderate	10.4 \| good	30.581 \| good	21.045 \| good	0.501 \| good	16.019 \| good	0.021 \| good
2025-11-07T23:00:00.000Z	52 \| moderate	10.468 \| good	12.522 \| good	21.004 \| good	0.411 \| good	12.791 \| good	0.029 \| good
2025-11-08T00:00:00.000Z	49 \| good	8.557 \| good	34.852 \| good	19.183 \| good	1.491 \| good	9.519 \| good	0.861 \| good
2025-11-08T01:00:00.000Z	33 \| good	6.412 \| good	17.5 \| good	18.388 \| good	1.704 \| good	7.119 \| good	0.441 \| good
2025-11-08T02:00:00.000Z	38 \| good	7.204 \| good	34.904 \| good	22.215 \| good	1.282 \| good	4.694 \| good	0.332 \| good
2025-11-08T03:00:00.000Z	32 \| good	5.329 \| good	35.302 \| good	21.62 \| good	1.529 \| good	4.742 \| good	0.296 \| good
2025-11-08T04:00:00.000Z	33 \| good	6.006 \| good	14.766 \| good	21.82 \| good	0.885 \| good	9.106 \| good	0.296 \| good
2025-11-05T02:00:00.000Z	29 \| good	5.244 \| good	7.79 \| good	30.587 \| good	0.266 \| good	3.328 \| good	0.111 \| good
2025-11-05T03:00:00.000Z	28 \| good	5.191 \| good	7.396 \| good	29.781 \| good	0.252 \| good	2.758 \| good	0.11 \| good
2025-11-05T04:00:00.000Z	28 \| good	5.431 \| good	9.405 \| good	29.999 \| good	0.251 \| good	2.47 \| good	0.109 \| good
2025-11-05T05:00:00.000Z	28 \| good	5.441 \| good	8.403 \| good	30.14 \| good	0.262 \| good	2.454 \| good	0.108 \| good
2025-11-05T06:00:00.000Z	33 \| good	5.674 \| good	8.958 \| good	28.496 \| good	0.312 \| good	4.156 \| good	0.109 \| good
2025-11-05T07:00:00.000Z	33 \| good	5.913 \| good	8.534 \| good	24.947 \| good	0.452 \| good	7.535 \| good	0.113 \| good
2025-11-05T08:00:00.000Z	33 \| good	6.309 \| good	9.25 \| good	21.732 \| good	0.574 \| good	11.436 \| good	0.121 \| good
2025-11-05T09:00:00.000Z	44 \| good	7.926 \| good	11.523 \| good	21.125 \| good	0.667 \| good	11.634 \| good	0.122 \| good
2025-11-05T10:00:00.000Z	38 \| good	7.159 \| good	10.474 \| good	23.174 \| good	0.602 \| good	8.804 \| good	0.123 \| good
2025-11-05T11:00:00.000Z	38 \| good	6.687 \| good	9.66 \| good	25.302 \| good	0.554 \| good	6.524 \| good	0.119 \| good
2025-11-05T12:00:00.000Z	33 \| good	6.392 \| good	8.992 \| good	26.128 \| good	0.511 \| good	5.294 \| good	0.117 \| good
2025-11-05T13:00:00.000Z	33 \| good	6.313 \| good	9.488 \| good	26.52 \| good	0.487 \| good	6.824 \| good	0.117 \| good
2025-11-05T14:00:00.000Z	33 \| good	6.406 \| good	10.168 \| good	26.367 \| good	0.472 \| good	7.769 \| good	0.117 \| good
2025-11-05T15:00:00.000Z	33 \| good	6.369 \| good	10.959 \| good	24.984 \| good	0.455 \| good	8.876 \| good	0.119 \| good
2025-11-05T16:00:00.000Z	38 \| good	6.85 \| good	12.181 \| good	22.586 \| good	0.531 \| good	11.994 \| good	0.121 \| good
2025-11-05T17:00:00.000Z	44 \| good	7.771 \| good	13.585 \| good	19.48 \| good	0.698 \| good	16.397 \| good	0.129 \| good
2025-11-05T18:00:00.000Z	49 \| good	8.75 \| good	15.633 \| good	11.433 \| good	0.931 \| good	21.481 \| good	0.136 \| good
2025-11-05T19:00:00.000Z	49 \| good	9.18 \| good	14.484 \| good	7.544 \| good	1.115 \| good	26.047 \| good	0.139 \| good
2025-11-05T20:00:00.000Z	49 \| good	9.319 \| good	14.2 \| good	10.685 \| good	1.185 \| good	21.173 \| good	0.134 \| good
2025-11-05T21:00:00.000Z	49 \| good	9.213 \| good	13.88 \| good	14.433 \| good	1.293 \| good	18.833 \| good	0.133 \| good
2025-11-05T22:00:00.000Z	49 \| good	8.792 \| good	13.059 \| good	18.059 \| good	1.221 \| good	14.957 \| good	0.131 \| good
2025-11-05T23:00:00.000Z	44 \| good	8 \| good	12.056 \| good	17.143 \| good	0.933 \| good	12.021 \| good	0.128 \| good
2025-11-06T00:00:00.000Z	38 \| good	7.379 \| good	10.267 \| good	17.452 \| good	0.622 \| good	9.481 \| good	0.125 \| good
2025-11-06T01:00:00.000Z	38 \| good	7.125 \| good	10.113 \| good	20.407 \| good	0.466 \| good	6.885 \| good	0.123 \| good
2025-11-06T02:00:00.000Z	38 \| good	6.986 \| good	10.172 \| good	22.153 \| good	0.411 \| good	5.602 \| good	0.122 \| good
2025-11-06T03:00:00.000Z	38 \| good	6.638 \| good	9.892 \| good	23.445 \| good	0.387 \| good	4.477 \| good	0.12 \| good
2025-11-06T04:00:00.000Z	38 \| good	6.79 \| good	9.918 \| good	23.132 \| good	0.381 \| good	4.293 \| good	0.121 \| good
2025-11-06T05:00:00.000Z	38 \| good	7.058 \| good	10.201 \| good	22.258 \| good	0.406 \| good	4.192 \| good	0.121 \| good
2025-11-06T06:00:00.000Z	44 \| good	7.897 \| good	11.169 \| good	19.95 \| good	0.476 \| good	6.876 \| good	0.124 \| good
2025-11-06T07:00:00.000Z	52 \| moderate	9.511 \| good	13.283 \| good	12.475 \| good	0.752 \| good	10.654 \| good	0.134 \| good
2025-11-06T08:00:00.000Z	56 \| moderate	11.502 \| good	15.151 \| good	6.336 \| good	1.026 \| good	19.881 \| good	0.147 \| good
2025-11-06T09:00:00.000Z	58 \| moderate	12.574 \| fine	16.641 \| good	6.276 \| good	1.329 \| good	22.109 \| good	0.159 \| good
2025-11-06T10:00:00.000Z	54 \| moderate	10.671 \| good	16.669 \| good	10.111 \| good	1.346 \| good	20.655 \| good	0.153 \| good
2025-11-06T11:00:00.000Z	49 \| good	9.098 \| good	13.084 \| good	15.195 \| good	1.263 \| good	16.48 \| good	0.144 \| good
2025-11-06T12:00:00.000Z	44 \| good	7.772 \| good	11.886 \| good	18.645 \| good	1.064 \| good	15.115 \| good	0.138 \| good
2025-11-06T13:00:00.000Z	38 \| good	6.963 \| good	13.519 \| good	16.684 \| good	0.905 \| good	13.751 \| good	0.139 \| good
2025-11-06T14:00:00.000Z	38 \| good	7.315 \| good	12.962 \| good	16.376 \| good	0.82 \| good	13.531 \| good	0.138 \| good
2025-11-06T15:00:00.000Z	49 \| good	8.525 \| good	13.025 \| good	14.886 \| good	0.818 \| good	14.848 \| good	0.138 \| good
2025-11-06T16:00:00.000Z	52 \| moderate	9.728 \| good	15.414 \| good	10.276 \| good	0.948 \| good	18.94 \| good	0.149 \| good
2025-11-06T17:00:00.000Z	54 \| moderate	11.32 \| good	16.554 \| good	5.358 \| good	1.177 \| good	26.069 \| good	0.161 \| good
2025-11-06T18:00:00.000Z	60 \| moderate	13.567 \| fine	17.643 \| good	1.349 \| good	1.256 \| good	32.124 \| good	0.179 \| good
2025-11-06T19:00:00.000Z	58 \| moderate	13.452 \| fine	17.255 \| good	0.561 \| good	1.262 \| good	33.198 \| good	0.185 \| good
2025-11-06T20:00:00.000Z	58 \| moderate	13.438 \| fine	16.317 \| good	0.551 \| good	1.147 \| good	31.526 \| good	0.172 \| good
2025-11-06T21:00:00.000Z	58 \| moderate	13.294 \| fine	16.101 \| good	0.935 \| good	0.95 \| good	29.675 \| good	0.165 \| good
2025-11-06T22:00:00.000Z	60 \| moderate	13.799 \| fine	16.401 \| good	2.988 \| good	0.785 \| good	25.659 \| good	0.161 \| good
2025-11-06T23:00:00.000Z	60 \| moderate	14.272 \| fine	16.661 \| good	4.54 \| good	0.867 \| good	24.332 \| good	0.155 \| good
2025-11-07T00:00:00.000Z	62 \| moderate	14.565 \| fine	16.793 \| good	3.876 \| good	0.689 \| good	21.747 \| good	0.148 \| good
2025-11-07T01:00:00.000Z	62 \| moderate	14.564 \| fine	16.388 \| good	6.083 \| good	0.629 \| good	20.252 \| good	0.147 \| good

St Albans

Empower business decisions with accurate air quality data

St Albans, Hertfordshire air quality map: Real-time AQI near you

0.38ppm

How accurate is Hertfordshire, UK air quality data?

Air quality measurements for Hertfordshire, UK meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.

Source: Ambee Data Sources

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Frequently asked questions

How frequently is the air quality data for St Albans, Hertfordshire updated?

Air quality data for St Albans, Hertfordshire is updated on an hourly basis.

When did St Albans, Hertfordshire experience the worst air quality in the last 24 hours?

The worst air quality in St Albans, Hertfordshire was recorded at 07:00:00 on 2025-11-04.

When did St Albans, Hertfordshire have its best air quality in the last 24 hours?

The best air quality in St Albans, Hertfordshire was recorded at 10:00:00 on 2025-11-04.

What is the real-time air quality index for St Albans, Hertfordshire?

The real-time air quality index in St Albans, Hertfordshire is 33, currently categorized as Good.

Which pollutant is found most often in St Albans, Hertfordshire?

The most common pollutant in St Albans, Hertfordshire is PM2.5.

What can I do if the air quality in St Albans, Hertfordshire is poor?

If the air quality in St Albans, Hertfordshire is poor, limit outdoor activities and use a mask to safeguard your health.

What are the current PM_2.5 levels in St Albans, Hertfordshire?

The measured PM_2.5 levels in St Albans, Hertfordshire at present are 5.842 μg/m³.

What are the current PM₁₀ levels at St Albans, Hertfordshire?

The current PM₁₀ levels in St Albans, Hertfordshire are 18.955 μg/m³.

What are the current carbon monoxide (CO) levels at St Albans, Hertfordshire?

The current carbon monoxide (CO) level in St Albans, Hertfordshire is 0.375 ppm.

What are the current sulfur dioxide (SO₂) levels at St Albans, Hertfordshire?

The current sulfur dioxide (SO₂) levels in St Albans, Hertfordshire are 0.742 ppb.

What are the current ozone (O₃) levels at St Albans, Hertfordshire?

The current ozone (O₃) levels at St Albans, Hertfordshire is 23.684 ppm.

What are the current nitrogen dioxide (NO₂) levels at St Albans, Hertfordshire?

The current nitrogen dioxide (NO₂) levels at St Albans, Hertfordshire is 5.379 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-11-06T05:00:00.000Z	38 \| good	6.603 \| good	8.64 \| good	24.252 \| good	0.299 \| good	4.007 \| good	0.117 \| good
2025-11-06T06:00:00.000Z	44 \| good	8.031 \| good	28.523 \| good	20.44 \| good	0.536 \| good	9.001 \| good	0.01 \| good
2025-11-06T07:00:00.000Z	44 \| good	8.442 \| good	24.925 \| good	16.423 \| good	0.863 \| good	5.113 \| good	0.603 \| good
2025-11-06T08:00:00.000Z	44 \| good	7.676 \| good	17.815 \| good	14.165 \| good	0.675 \| good	8.403 \| good	0.012 \| good
2025-11-06T09:00:00.000Z	38 \| good	7.054 \| good	26.039 \| good	16.008 \| good	1.021 \| good	21.106 \| good	0.514 \| good
2025-11-06T10:00:00.000Z	44 \| good	7.594 \| good	30.99 \| good	19.692 \| good	0.682 \| good	12.749 \| good	0.009 \| good
2025-11-06T11:00:00.000Z	44 \| good	7.922 \| good	28.95 \| good	18.436 \| good	0.607 \| good	13.17 \| good	0.01 \| good
2025-11-06T12:00:00.000Z	38 \| good	7.391 \| good	23.8 \| good	14.776 \| good	0.679 \| good	10.933 \| good	0.006 \| good
2025-11-06T13:00:00.000Z	44 \| good	7.73 \| good	22.926 \| good	10.818 \| good	0.738 \| good	10.404 \| good	0.005 \| good
2025-11-06T14:00:00.000Z	44 \| good	7.502 \| good	26.061 \| good	12.094 \| good	0.958 \| good	9.234 \| good	0.005 \| good
2025-11-06T15:00:00.000Z	33 \| good	6.441 \| good	19.985 \| good	14.313 \| good	0.913 \| good	15.099 \| good	0.006 \| good
2025-11-06T16:00:00.000Z	38 \| good	7.356 \| good	25.5 \| good	13.682 \| good	0.817 \| good	12.271 \| good	0.008 \| good
2025-11-06T17:00:00.000Z	33 \| good	5.63 \| good	20.28 \| good	19.248 \| good	0.64 \| good	13.234 \| good	0.015 \| good
2025-11-06T18:00:00.000Z	44 \| good	7.821 \| good	32.369 \| good	20.523 \| good	0.842 \| good	13.816 \| good	0.022 \| good
2025-11-06T19:00:00.000Z	49 \| good	9.208 \| good	28.651 \| good	21.478 \| good	1.042 \| good	11.39 \| good	0.017 \| good
2025-11-06T20:00:00.000Z	38 \| good	6.716 \| good	24.043 \| good	16.112 \| good	0.797 \| good	14.534 \| good	0.02 \| good
2025-11-06T21:00:00.000Z	38 \| good	7.46 \| good	32.816 \| good	16.605 \| good	0.764 \| good	20.639 \| good	0.015 \| good
2025-11-06T22:00:00.000Z	49 \| good	9.228 \| good	21.84 \| good	17.795 \| good	1 \| good	15.461 \| good	0.019 \| good
2025-11-06T23:00:00.000Z	44 \| good	7.846 \| good	29.059 \| good	19.771 \| good	0.665 \| good	15.558 \| good	0.021 \| good
2025-11-07T00:00:00.000Z	38 \| good	7.268 \| good	35.859 \| good	13.024 \| good	1.236 \| good	13.298 \| good	0.553 \| good
2025-11-07T01:00:00.000Z	44 \| good	8.04 \| good	31.156 \| good	8.674 \| good	1.297 \| good	18.777 \| good	0.485 \| good
2025-11-07T02:00:00.000Z	52 \| moderate	10.418 \| good	34.312 \| good	7.182 \| good	1.085 \| good	14.042 \| good	0.441 \| good
2025-11-07T03:00:00.000Z	44 \| good	8.216 \| good	27.916 \| good	5.25 \| good	1.431 \| good	9.729 \| good	0.401 \| good
2025-11-07T04:00:00.000Z	44 \| good	8.362 \| good	37.26 \| good	9.06 \| good	1.815 \| good	6.145 \| good	0.34 \| good
2025-11-07T05:00:00.000Z	49 \| good	9.069 \| good	36.163 \| good	14.81 \| good	1.619 \| good	11.314 \| good	0.338 \| good
2025-11-07T06:00:00.000Z	49 \| good	8.586 \| good	23.695 \| good	11.135 \| good	0.447 \| good	10.708 \| good	0.008 \| good
2025-11-07T07:00:00.000Z	38 \| good	7.232 \| good	36.582 \| good	12.428 \| good	1.627 \| good	8.931 \| good	0.011 \| good
2025-11-07T08:00:00.000Z	49 \| good	8.61 \| good	30.782 \| good	15.548 \| good	0.58 \| good	10.403 \| good	0.009 \| good
2025-11-07T09:00:00.000Z	54 \| moderate	11.365 \| good	12.84 \| good	12.242 \| good	0.754 \| good	15.237 \| good	0.15 \| good
2025-11-07T10:00:00.000Z	52 \| moderate	10.289 \| good	11.726 \| good	12.182 \| good	0.742 \| good	15.396 \| good	0.143 \| good
2025-11-07T11:00:00.000Z	49 \| good	8.711 \| good	10.085 \| good	14.026 \| good	0.805 \| good	13.391 \| good	0.144 \| good
2025-11-07T12:00:00.000Z	38 \| good	7.19 \| good	9.343 \| good	16.037 \| good	0.64 \| good	11.512 \| good	0.143 \| good
2025-11-07T13:00:00.000Z	52 \| moderate	10.483 \| good	27.92 \| good	18.659 \| good	0.509 \| good	13.87 \| good	0.008 \| good
2025-11-07T14:00:00.000Z	54 \| moderate	11.409 \| good	31.134 \| good	16.576 \| good	0.506 \| good	11.659 \| good	0.01 \| good
2025-11-07T15:00:00.000Z	49 \| good	8.594 \| good	29.403 \| good	15.722 \| good	0.509 \| good	12.045 \| good	0.01 \| good
2025-11-07T16:00:00.000Z	52 \| moderate	10.429 \| good	20.54 \| good	17.604 \| good	0.631 \| good	15.286 \| good	0.011 \| good
2025-11-07T17:00:00.000Z	49 \| good	8.65 \| good	31.49 \| good	20.176 \| good	0.567 \| good	14.158 \| good	0.013 \| good
2025-11-07T18:00:00.000Z	38 \| good	7.407 \| good	29.281 \| good	18.04 \| good	1.667 \| good	21.696 \| good	0.016 \| good
2025-11-07T19:00:00.000Z	54 \| moderate	10.543 \| good	23.816 \| good	18.622 \| good	0.639 \| good	15.838 \| good	0.02 \| good
2025-11-07T20:00:00.000Z	49 \| good	9.487 \| good	26.956 \| good	18.184 \| good	0.55 \| good	15.363 \| good	0.019 \| good
2025-11-07T21:00:00.000Z	52 \| moderate	9.754 \| good	22.351 \| good	18.184 \| good	0.484 \| good	17.324 \| good	0.018 \| good
2025-11-07T22:00:00.000Z	52 \| moderate	10.4 \| good	30.581 \| good	21.045 \| good	0.501 \| good	16.019 \| good	0.021 \| good
2025-11-07T23:00:00.000Z	52 \| moderate	10.468 \| good	12.522 \| good	21.004 \| good	0.411 \| good	12.791 \| good	0.029 \| good
2025-11-08T00:00:00.000Z	49 \| good	8.557 \| good	34.852 \| good	19.183 \| good	1.491 \| good	9.519 \| good	0.861 \| good
2025-11-08T01:00:00.000Z	33 \| good	6.412 \| good	17.5 \| good	18.388 \| good	1.704 \| good	7.119 \| good	0.441 \| good
2025-11-08T02:00:00.000Z	38 \| good	7.204 \| good	34.904 \| good	22.215 \| good	1.282 \| good	4.694 \| good	0.332 \| good
2025-11-08T03:00:00.000Z	32 \| good	5.329 \| good	35.302 \| good	21.62 \| good	1.529 \| good	4.742 \| good	0.296 \| good
2025-11-08T04:00:00.000Z	33 \| good	6.006 \| good	14.766 \| good	21.82 \| good	0.885 \| good	9.106 \| good	0.296 \| good
2025-11-05T02:00:00.000Z	29 \| good	5.244 \| good	7.79 \| good	30.587 \| good	0.266 \| good	3.328 \| good	0.111 \| good
2025-11-05T03:00:00.000Z	28 \| good	5.191 \| good	7.396 \| good	29.781 \| good	0.252 \| good	2.758 \| good	0.11 \| good
2025-11-05T04:00:00.000Z	28 \| good	5.431 \| good	9.405 \| good	29.999 \| good	0.251 \| good	2.47 \| good	0.109 \| good
2025-11-05T05:00:00.000Z	28 \| good	5.441 \| good	8.403 \| good	30.14 \| good	0.262 \| good	2.454 \| good	0.108 \| good
2025-11-05T06:00:00.000Z	33 \| good	5.674 \| good	8.958 \| good	28.496 \| good	0.312 \| good	4.156 \| good	0.109 \| good
2025-11-05T07:00:00.000Z	33 \| good	5.913 \| good	8.534 \| good	24.947 \| good	0.452 \| good	7.535 \| good	0.113 \| good
2025-11-05T08:00:00.000Z	33 \| good	6.309 \| good	9.25 \| good	21.732 \| good	0.574 \| good	11.436 \| good	0.121 \| good
2025-11-05T09:00:00.000Z	44 \| good	7.926 \| good	11.523 \| good	21.125 \| good	0.667 \| good	11.634 \| good	0.122 \| good
2025-11-05T10:00:00.000Z	38 \| good	7.159 \| good	10.474 \| good	23.174 \| good	0.602 \| good	8.804 \| good	0.123 \| good
2025-11-05T11:00:00.000Z	38 \| good	6.687 \| good	9.66 \| good	25.302 \| good	0.554 \| good	6.524 \| good	0.119 \| good
2025-11-05T12:00:00.000Z	33 \| good	6.392 \| good	8.992 \| good	26.128 \| good	0.511 \| good	5.294 \| good	0.117 \| good
2025-11-05T13:00:00.000Z	33 \| good	6.313 \| good	9.488 \| good	26.52 \| good	0.487 \| good	6.824 \| good	0.117 \| good
2025-11-05T14:00:00.000Z	33 \| good	6.406 \| good	10.168 \| good	26.367 \| good	0.472 \| good	7.769 \| good	0.117 \| good
2025-11-05T15:00:00.000Z	33 \| good	6.369 \| good	10.959 \| good	24.984 \| good	0.455 \| good	8.876 \| good	0.119 \| good
2025-11-05T16:00:00.000Z	38 \| good	6.85 \| good	12.181 \| good	22.586 \| good	0.531 \| good	11.994 \| good	0.121 \| good
2025-11-05T17:00:00.000Z	44 \| good	7.771 \| good	13.585 \| good	19.48 \| good	0.698 \| good	16.397 \| good	0.129 \| good
2025-11-05T18:00:00.000Z	49 \| good	8.75 \| good	15.633 \| good	11.433 \| good	0.931 \| good	21.481 \| good	0.136 \| good
2025-11-05T19:00:00.000Z	49 \| good	9.18 \| good	14.484 \| good	7.544 \| good	1.115 \| good	26.047 \| good	0.139 \| good
2025-11-05T20:00:00.000Z	49 \| good	9.319 \| good	14.2 \| good	10.685 \| good	1.185 \| good	21.173 \| good	0.134 \| good
2025-11-05T21:00:00.000Z	49 \| good	9.213 \| good	13.88 \| good	14.433 \| good	1.293 \| good	18.833 \| good	0.133 \| good
2025-11-05T22:00:00.000Z	49 \| good	8.792 \| good	13.059 \| good	18.059 \| good	1.221 \| good	14.957 \| good	0.131 \| good
2025-11-05T23:00:00.000Z	44 \| good	8 \| good	12.056 \| good	17.143 \| good	0.933 \| good	12.021 \| good	0.128 \| good
2025-11-06T00:00:00.000Z	38 \| good	7.379 \| good	10.267 \| good	17.452 \| good	0.622 \| good	9.481 \| good	0.125 \| good
2025-11-06T01:00:00.000Z	38 \| good	7.125 \| good	10.113 \| good	20.407 \| good	0.466 \| good	6.885 \| good	0.123 \| good
2025-11-06T02:00:00.000Z	38 \| good	6.986 \| good	10.172 \| good	22.153 \| good	0.411 \| good	5.602 \| good	0.122 \| good
2025-11-06T03:00:00.000Z	38 \| good	6.638 \| good	9.892 \| good	23.445 \| good	0.387 \| good	4.477 \| good	0.12 \| good
2025-11-06T04:00:00.000Z	38 \| good	6.79 \| good	9.918 \| good	23.132 \| good	0.381 \| good	4.293 \| good	0.121 \| good
2025-11-06T05:00:00.000Z	38 \| good	7.058 \| good	10.201 \| good	22.258 \| good	0.406 \| good	4.192 \| good	0.121 \| good
2025-11-06T06:00:00.000Z	44 \| good	7.897 \| good	11.169 \| good	19.95 \| good	0.476 \| good	6.876 \| good	0.124 \| good
2025-11-06T07:00:00.000Z	52 \| moderate	9.511 \| good	13.283 \| good	12.475 \| good	0.752 \| good	10.654 \| good	0.134 \| good
2025-11-06T08:00:00.000Z	56 \| moderate	11.502 \| good	15.151 \| good	6.336 \| good	1.026 \| good	19.881 \| good	0.147 \| good
2025-11-06T09:00:00.000Z	58 \| moderate	12.574 \| fine	16.641 \| good	6.276 \| good	1.329 \| good	22.109 \| good	0.159 \| good
2025-11-06T10:00:00.000Z	54 \| moderate	10.671 \| good	16.669 \| good	10.111 \| good	1.346 \| good	20.655 \| good	0.153 \| good
2025-11-06T11:00:00.000Z	49 \| good	9.098 \| good	13.084 \| good	15.195 \| good	1.263 \| good	16.48 \| good	0.144 \| good
2025-11-06T12:00:00.000Z	44 \| good	7.772 \| good	11.886 \| good	18.645 \| good	1.064 \| good	15.115 \| good	0.138 \| good
2025-11-06T13:00:00.000Z	38 \| good	6.963 \| good	13.519 \| good	16.684 \| good	0.905 \| good	13.751 \| good	0.139 \| good
2025-11-06T14:00:00.000Z	38 \| good	7.315 \| good	12.962 \| good	16.376 \| good	0.82 \| good	13.531 \| good	0.138 \| good
2025-11-06T15:00:00.000Z	49 \| good	8.525 \| good	13.025 \| good	14.886 \| good	0.818 \| good	14.848 \| good	0.138 \| good
2025-11-06T16:00:00.000Z	52 \| moderate	9.728 \| good	15.414 \| good	10.276 \| good	0.948 \| good	18.94 \| good	0.149 \| good
2025-11-06T17:00:00.000Z	54 \| moderate	11.32 \| good	16.554 \| good	5.358 \| good	1.177 \| good	26.069 \| good	0.161 \| good
2025-11-06T18:00:00.000Z	60 \| moderate	13.567 \| fine	17.643 \| good	1.349 \| good	1.256 \| good	32.124 \| good	0.179 \| good
2025-11-06T19:00:00.000Z	58 \| moderate	13.452 \| fine	17.255 \| good	0.561 \| good	1.262 \| good	33.198 \| good	0.185 \| good
2025-11-06T20:00:00.000Z	58 \| moderate	13.438 \| fine	16.317 \| good	0.551 \| good	1.147 \| good	31.526 \| good	0.172 \| good
2025-11-06T21:00:00.000Z	58 \| moderate	13.294 \| fine	16.101 \| good	0.935 \| good	0.95 \| good	29.675 \| good	0.165 \| good
2025-11-06T22:00:00.000Z	60 \| moderate	13.799 \| fine	16.401 \| good	2.988 \| good	0.785 \| good	25.659 \| good	0.161 \| good
2025-11-06T23:00:00.000Z	60 \| moderate	14.272 \| fine	16.661 \| good	4.54 \| good	0.867 \| good	24.332 \| good	0.155 \| good
2025-11-07T00:00:00.000Z	62 \| moderate	14.565 \| fine	16.793 \| good	3.876 \| good	0.689 \| good	21.747 \| good	0.148 \| good
2025-11-07T01:00:00.000Z	62 \| moderate	14.564 \| fine	16.388 \| good	6.083 \| good	0.629 \| good	20.252 \| good	0.147 \| good

Real-time air quality index in St Albans, Hertfordshire today

Common air pollutants in St Albans, Hertfordshire

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live St Albans, Hertfordshire air quality forecast and history

Empower business decisions with accurate air quality data

St Albans, Hertfordshire air quality map: Real-time AQI near you

Air quality in nearby cities

Abbots Langley, Hertfordshire

Hemel Hempstead, Hertfordshire

Harpenden, Hertfordshire

Hatfield, Hertfordshire

Watford, Hertfordshire

Welwyn Garden City, Hertfordshire

How accurate is Hertfordshire, UK air quality data?

Air quality levels in UK

Frequently asked questions

How frequently is the air quality data for St Albans, Hertfordshire updated?

When did St Albans, Hertfordshire experience the worst air quality in the last 24 hours?

When did St Albans, Hertfordshire have its best air quality in the last 24 hours?

What is the real-time air quality index for St Albans, Hertfordshire?

Which pollutant is found most often in St Albans, Hertfordshire?

What can I do if the air quality in St Albans, Hertfordshire is poor?

What are the current PM2.5 levels in St Albans, Hertfordshire?

What are the current PM10 levels at St Albans, Hertfordshire?

What are the current carbon monoxide (CO) levels at St Albans, Hertfordshire?

What are the current sulfur dioxide (SO2) levels at St Albans, Hertfordshire?

What are the current ozone (O3) levels at St Albans, Hertfordshire?

What are the current nitrogen dioxide (NO2) levels at St Albans, Hertfordshire?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What are the current PM_2.5 levels in St Albans, Hertfordshire?

What are the current PM₁₀ levels at St Albans, Hertfordshire?

What are the current sulfur dioxide (SO₂) levels at St Albans, Hertfordshire?

What are the current ozone (O₃) levels at St Albans, Hertfordshire?

What are the current nitrogen dioxide (NO₂) levels at St Albans, Hertfordshire?