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

The current PM10 levels in St Albans, Hertfordshire are 65.347 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 0.815 ppb.

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

The current ozone (O3) levels at St Albans, Hertfordshire is 21.421 ppm.

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

The current nitrogen dioxide (NO2) levels at St Albans, Hertfordshire is 16.895 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 34.832 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)

Moderate

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)

34.83 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

65.35 μg/m³

155

255

425

605+

Ozone (O₃)

21.42 ppb

201

201+

Sulfur Dioxide (SO₂)

0.81 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

16.89 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.01 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

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
2026-03-07T13:00:00.000Z	33 \| good	5.945 \| good	13.75 \| good	26.564 \| good	0.635 \| good	9.016 \| good	0.004 \| good
2026-03-07T14:00:00.000Z	28 \| good	5.306 \| good	12.646 \| good	30.007 \| good	0.588 \| good	9.686 \| good	0.004 \| good
2026-03-07T15:00:00.000Z	28 \| good	5.306 \| good	12.162 \| good	30.065 \| good	0.753 \| good	10.026 \| good	0.004 \| good
2026-03-07T16:00:00.000Z	27 \| good	5.306 \| good	12.162 \| good	26.88 \| good	0.682 \| good	9.376 \| good	0.004 \| good
2026-03-07T17:00:00.000Z	28 \| good	5.306 \| good	12.162 \| good	29.641 \| good	0.641 \| good	10.026 \| good	0.006 \| good
2026-03-07T18:00:00.000Z	28 \| good	5.151 \| good	11.716 \| good	29.869 \| good	0.618 \| good	9.396 \| good	0.006 \| good
2026-03-07T19:00:00.000Z	29 \| good	5.306 \| good	12.646 \| good	31.118 \| good	0.636 \| good	9.973 \| good	0.008 \| good
2026-03-07T20:00:00.000Z	33 \| good	5.79 \| good	13.13 \| good	27.518 \| good	0.645 \| good	9.726 \| good	0.013 \| good
2026-03-07T21:00:00.000Z	33 \| good	5.79 \| good	13.13 \| good	28.608 \| good	0.763 \| good	9.406 \| good	0.018 \| good
2026-03-07T22:00:00.000Z	33 \| good	5.79 \| good	13.13 \| good	26.634 \| good	0.764 \| good	8.231 \| good	0.019 \| good
2026-03-07T23:00:00.000Z	33 \| good	5.79 \| good	13.13 \| good	28.41 \| good	0.606 \| good	8.459 \| good	0.021 \| good
2026-03-08T00:00:00.000Z	49 \| good	9.322 \| good	30.699 \| good	24.661 \| good	0.764 \| good	11.415 \| good	1.005 \| good
2026-03-08T01:00:00.000Z	58 \| moderate	12.757 \| fine	22.75 \| good	24.671 \| good	0.588 \| good	10.618 \| good	0.879 \| good
2026-03-08T02:00:00.000Z	58 \| moderate	12.757 \| fine	22.75 \| good	24.126 \| good	0.586 \| good	8.608 \| good	0.798 \| good
2026-03-08T03:00:00.000Z	58 \| moderate	13.241 \| fine	23.234 \| good	24.53 \| good	0.603 \| good	8.196 \| good	0.658 \| good
2026-03-08T04:00:00.000Z	58 \| moderate	13.396 \| fine	23.854 \| good	25.717 \| good	0.53 \| good	8.031 \| good	0.634 \| good
2026-03-08T05:00:00.000Z	60 \| moderate	13.88 \| fine	24.338 \| good	25.124 \| good	0.804 \| good	7.516 \| good	0.6 \| good
2026-03-08T06:00:00.000Z	52 \| moderate	9.871 \| good	21.364 \| good	25.922 \| good	0.667 \| good	4.181 \| good	0.528 \| good
2026-03-08T07:00:00.000Z	60 \| moderate	13.88 \| fine	24.822 \| good	24.311 \| good	0.595 \| good	8.011 \| good	0.01 \| good
2026-03-08T08:00:00.000Z	60 \| moderate	14.035 \| fine	25.443 \| good	24.696 \| good	0.618 \| good	8.259 \| good	0.01 \| good
2026-03-08T09:00:00.000Z	62 \| moderate	14.519 \| fine	25.443 \| good	26.061 \| good	0.666 \| good	9.186 \| good	0.011 \| good
2026-03-08T10:00:00.000Z	62 \| moderate	14.519 \| fine	25.443 \| good	26.366 \| good	0.822 \| good	9.206 \| good	0.008 \| good
2026-03-08T11:00:00.000Z	62 \| moderate	14.519 \| fine	25.443 \| good	24.922 \| good	0.654 \| good	9.783 \| good	0.006 \| good
2026-03-08T12:00:00.000Z	62 \| moderate	14.519 \| fine	25.927 \| good	26.353 \| good	0.603 \| good	10.463 \| good	0.004 \| good
2026-03-08T13:00:00.000Z	62 \| moderate	15.158 \| fine	26.702 \| good	24.189 \| good	0.649 \| good	11.4 \| good	0.004 \| good
2026-03-08T14:00:00.000Z	62 \| moderate	15.158 \| fine	27.186 \| good	22.748 \| good	0.812 \| good	11.41 \| good	0.004 \| good
2026-03-08T15:00:00.000Z	64 \| moderate	15.642 \| fine	27.67 \| good	25.846 \| good	0.604 \| good	12.41 \| good	0.004 \| good
2026-03-08T16:00:00.000Z	64 \| moderate	16.281 \| fine	28.445 \| good	25.803 \| good	0.678 \| good	12.915 \| good	0.005 \| good
2026-03-08T17:00:00.000Z	66 \| moderate	16.92 \| fine	30.033 \| good	24.764 \| good	0.686 \| good	14.799 \| good	0.007 \| good
2026-03-08T18:00:00.000Z	67 \| moderate	17.559 \| fine	31.138 \| good	23.785 \| good	0.68 \| good	17.004 \| good	0.009 \| good
2026-03-08T19:00:00.000Z	67 \| moderate	18.198 \| fine	32.242 \| good	22.611 \| good	0.765 \| good	17.241 \| good	0.014 \| good
2026-03-08T20:00:00.000Z	69 \| moderate	18.992 \| fine	33.966 \| good	24.118 \| good	0.708 \| good	17.344 \| good	0.012 \| good
2026-03-08T21:00:00.000Z	71 \| moderate	19.631 \| fine	35.381 \| good	22.852 \| good	0.749 \| good	17.694 \| good	0.019 \| good
2026-03-08T22:00:00.000Z	71 \| moderate	20.426 \| fine	37.589 \| good	22.755 \| good	0.771 \| good	16.684 \| good	0.023 \| good
2026-03-08T23:00:00.000Z	75 \| moderate	21.549 \| fine	38.693 \| good	21.858 \| good	0.682 \| good	15.727 \| good	0.017 \| good
2026-03-09T00:00:00.000Z	79 \| moderate	23.58 \| fine	65.561 \| fine	23.285 \| good	0.783 \| good	15.255 \| good	0.735 \| good
2026-03-09T01:00:00.000Z	82 \| moderate	26.214 \| fine	46.575 \| good	21.828 \| good	0.739 \| good	14.72 \| good	0.646 \| good
2026-03-09T02:00:00.000Z	84 \| moderate	27.492 \| fine	48.299 \| good	24.098 \| good	0.583 \| good	12.948 \| good	0.67 \| good
2026-03-09T03:00:00.000Z	86 \| moderate	28.131 \| fine	49.887 \| good	21.678 \| good	0.58 \| good	12.186 \| good	0.538 \| good
2026-03-09T04:00:00.000Z	88 \| moderate	28.925 \| fine	52.406 \| good	23.592 \| good	0.578 \| good	11.156 \| good	0.495 \| good
2026-03-09T05:00:00.000Z	90 \| moderate	30.048 \| fine	53.51 \| good	23.044 \| good	0.778 \| good	10.044 \| good	0.462 \| good
2026-03-09T06:00:00.000Z	88 \| moderate	29.042 \| fine	56.213 \| fine	21.128 \| good	0.722 \| good	7.419 \| good	0.457 \| good
2026-03-09T07:00:00.000Z	94 \| moderate	31.966 \| fine	57.307 \| fine	22.926 \| good	0.653 \| good	12.611 \| good	0.011 \| good
2026-03-09T08:00:00.000Z	96 \| moderate	32.76 \| fine	59.515 \| fine	23.192 \| good	0.541 \| good	12.436 \| good	0.012 \| good
2026-03-09T09:00:00.000Z	97 \| moderate	33.554 \| fine	62.344 \| fine	23.843 \| good	0.657 \| good	13.805 \| good	0.01 \| good
2026-03-09T10:00:00.000Z	97 \| moderate	34.193 \| fine	63.448 \| fine	23.739 \| good	0.713 \| good	13.835 \| good	0.009 \| good
2026-03-09T11:00:00.000Z	99 \| moderate	34.832 \| fine	65.347 \| fine	21.421 \| good	0.815 \| good	16.895 \| good	0.008 \| good
2026-03-09T12:00:00.000Z	99 \| moderate	35.471 \| fine	66.451 \| fine	21.674 \| good	0.744 \| good	14.823 \| good	0.004 \| good
2026-03-09T12:00:00.000Z	99 \| moderate	34.832 \| fine	65.347 \| fine	21.421 \| good	0.815 \| good	16.895 \| good	0.008 \| good
2026-03-09T13:00:00.000Z	137 \| sensitive	49.654 \| moderate	53.188 \| good	14.927 \| good	0.673 \| good	21.712 \| good	0.271 \| good
2026-03-09T14:00:00.000Z	119 \| sensitive	42.849 \| moderate	50.335 \| good	19.228 \| good	0.633 \| good	19.843 \| good	0.254 \| good
2026-03-09T15:00:00.000Z	105 \| sensitive	37.148 \| moderate	48.635 \| good	20.394 \| good	0.566 \| good	18.771 \| good	0.239 \| good
2026-03-09T16:00:00.000Z	94 \| moderate	31.645 \| fine	42.499 \| good	25.633 \| good	0.453 \| good	18.007 \| good	0.216 \| good
2026-03-09T17:00:00.000Z	88 \| moderate	29.113 \| fine	36.57 \| good	19.252 \| good	0.574 \| good	18.703 \| good	0.226 \| good
2026-03-09T18:00:00.000Z	88 \| moderate	29.326 \| fine	37.402 \| good	11.812 \| good	0.933 \| good	24.862 \| good	0.26 \| good
2026-03-09T19:00:00.000Z	96 \| moderate	33.248 \| fine	43.09 \| good	3.177 \| good	1.035 \| good	29.795 \| good	0.292 \| good
2026-03-09T20:00:00.000Z	105 \| sensitive	36.681 \| moderate	40.581 \| good	2.074 \| good	0.983 \| good	33.983 \| good	0.309 \| good
2026-03-09T21:00:00.000Z	92 \| moderate	30.899 \| fine	33.899 \| good	0.947 \| good	1.029 \| good	36.928 \| good	0.328 \| good
2026-03-09T22:00:00.000Z	81 \| moderate	25.303 \| fine	30.589 \| good	3.494 \| good	0.67 \| good	26.098 \| good	0.272 \| good
2026-03-09T23:00:00.000Z	81 \| moderate	24.506 \| fine	30.323 \| good	7.153 \| good	0.535 \| good	22.157 \| good	0.23 \| good
2026-03-10T00:00:00.000Z	81 \| moderate	24.57 \| fine	30.076 \| good	10.36 \| good	0.543 \| good	21.418 \| good	0.219 \| good
2026-03-10T01:00:00.000Z	77 \| moderate	22.644 \| fine	27.64 \| good	12.745 \| good	0.412 \| good	15.8 \| good	0.193 \| good
2026-03-10T02:00:00.000Z	77 \| moderate	23.294 \| fine	26.837 \| good	17.959 \| good	0.259 \| good	11.452 \| good	0.164 \| good
2026-03-10T03:00:00.000Z	73 \| moderate	21.249 \| fine	27.748 \| good	21.892 \| good	0.199 \| good	9.536 \| good	0.15 \| good
2026-03-10T04:00:00.000Z	71 \| moderate	20.064 \| fine	24.576 \| good	23.447 \| good	0.184 \| good	6.747 \| good	0.144 \| good
2026-03-10T05:00:00.000Z	66 \| moderate	17.453 \| fine	20.993 \| good	25.308 \| good	0.181 \| good	4.957 \| good	0.143 \| good
2026-03-10T06:00:00.000Z	66 \| moderate	16.722 \| fine	20.518 \| good	24.581 \| good	0.222 \| good	5.49 \| good	0.144 \| good
2026-03-10T07:00:00.000Z	66 \| moderate	16.859 \| fine	20.505 \| good	20.871 \| good	0.263 \| good	7.625 \| good	0.151 \| good
2026-03-10T08:00:00.000Z	66 \| moderate	17.196 \| fine	20.025 \| good	19.848 \| good	0.447 \| good	10.545 \| good	0.155 \| good
2026-03-10T09:00:00.000Z	62 \| moderate	14.94 \| fine	17.805 \| good	19.535 \| good	0.521 \| good	11.866 \| good	0.16 \| good
2026-03-10T10:00:00.000Z	62 \| moderate	14.865 \| fine	17.911 \| good	20.931 \| good	0.432 \| good	11.077 \| good	0.158 \| good
2026-03-10T11:00:00.000Z	60 \| moderate	14.146 \| fine	16.981 \| good	28.532 \| good	0.322 \| good	6.904 \| good	0.152 \| good
2026-03-10T12:00:00.000Z	56 \| moderate	12.109 \| fine	14.687 \| good	30.631 \| good	0.253 \| good	5.346 \| good	0.15 \| good
2026-03-10T13:00:00.000Z	54 \| moderate	11.291 \| good	13.165 \| good	30.932 \| good	0.225 \| good	4.431 \| good	0.145 \| good
2026-03-10T14:00:00.000Z	52 \| moderate	10.42 \| good	11.823 \| good	30.721 \| good	0.216 \| good	4.57 \| good	0.144 \| good
2026-03-10T15:00:00.000Z	54 \| moderate	11.009 \| good	12.326 \| good	29.626 \| good	0.216 \| good	5.393 \| good	0.144 \| good
2026-03-10T16:00:00.000Z	54 \| moderate	10.655 \| good	11.847 \| good	31.294 \| good	0.213 \| good	5.698 \| good	0.146 \| good
2026-03-10T17:00:00.000Z	49 \| good	8.681 \| good	11.772 \| good	31.732 \| good	0.277 \| good	7.589 \| good	0.146 \| good
2026-03-10T18:00:00.000Z	49 \| good	8.645 \| good	11.678 \| good	28.895 \| good	0.43 \| good	11.135 \| good	0.162 \| good
2026-03-10T19:00:00.000Z	44 \| good	8.349 \| good	10.809 \| good	27.226 \| good	0.591 \| good	14.144 \| good	0.168 \| good
2026-03-10T20:00:00.000Z	49 \| good	8.771 \| good	11.265 \| good	27.271 \| good	0.65 \| good	14.735 \| good	0.161 \| good
2026-03-10T21:00:00.000Z	52 \| moderate	10.24 \| good	11.674 \| good	26.108 \| good	0.649 \| good	14.282 \| good	0.163 \| good
2026-03-10T22:00:00.000Z	54 \| moderate	10.6 \| good	12.86 \| good	25.6 \| good	0.654 \| good	12.425 \| good	0.159 \| good
2026-03-10T23:00:00.000Z	49 \| good	9.345 \| good	13.173 \| good	26.446 \| good	0.564 \| good	10.041 \| good	0.153 \| good
2026-03-11T00:00:00.000Z	44 \| good	7.664 \| good	11.422 \| good	31.559 \| good	0.445 \| good	6.854 \| good	0.144 \| good
2026-03-11T01:00:00.000Z	33 \| good	5.635 \| good	8.852 \| good	34.843 \| good	0.403 \| good	5.098 \| good	0.137 \| good
2026-03-11T02:00:00.000Z	34 \| good	4.334 \| good	8.491 \| good	37.413 \| good	0.304 \| good	3.97 \| good	0.133 \| good
2026-03-11T03:00:00.000Z	33 \| good	4.475 \| good	7.598 \| good	36.132 \| good	0.313 \| good	3.005 \| good	0.13 \| good
2026-03-11T04:00:00.000Z	35 \| good	3.898 \| good	7.271 \| good	37.587 \| good	0.228 \| good	2.867 \| good	0.129 \| good
2026-03-11T05:00:00.000Z	35 \| good	3.356 \| good	5.928 \| good	38.275 \| good	0.173 \| good	2.433 \| good	0.128 \| good
2026-03-11T06:00:00.000Z	36 \| good	3.483 \| good	5.375 \| good	39.139 \| good	0.204 \| good	2.523 \| good	0.129 \| good
2026-03-11T07:00:00.000Z	34 \| good	3.134 \| good	4.147 \| good	37.189 \| good	0.222 \| good	3.386 \| good	0.132 \| good
2026-03-11T08:00:00.000Z	33 \| good	2.777 \| good	4.154 \| good	35.954 \| good	0.239 \| good	5.642 \| good	0.135 \| good
2026-03-11T09:00:00.000Z	32 \| good	2.939 \| good	3.897 \| good	34.928 \| good	0.298 \| good	6.556 \| good	0.136 \| good
2026-03-11T10:00:00.000Z	31 \| good	2.837 \| good	4.027 \| good	33.299 \| good	0.254 \| good	4.976 \| good	0.134 \| good
2026-03-11T11:00:00.000Z	31 \| good	2.94 \| good	4.49 \| good	34.415 \| good	0.208 \| good	3.448 \| good	0.129 \| good
2026-03-11T12:00:00.000Z	36 \| good	3.433 \| good	5.974 \| good	39.04 \| good	0.183 \| good	2.577 \| good	0.125 \| good

St Albans

Empower business decisions with accurate air quality data

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

0.02ppm

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 11:00:00 on 2026-03-09.

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 02:00:00 on 2026-03-08.

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

The real-time air quality index in St Albans, Hertfordshire is 99, currently categorized as Moderate.

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 34.832 μg/m³.

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

The current PM₁₀ levels in St Albans, Hertfordshire are 65.347 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 0.008 ppm.

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

The current sulfur dioxide (SO₂) levels in St Albans, Hertfordshire are 0.815 ppb.

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

The current ozone (O₃) levels at St Albans, Hertfordshire is 21.421 ppm.

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

The current nitrogen dioxide (NO₂) levels at St Albans, Hertfordshire is 16.895 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-07T13:00:00.000Z	33 \| good	5.945 \| good	13.75 \| good	26.564 \| good	0.635 \| good	9.016 \| good	0.004 \| good
2026-03-07T14:00:00.000Z	28 \| good	5.306 \| good	12.646 \| good	30.007 \| good	0.588 \| good	9.686 \| good	0.004 \| good
2026-03-07T15:00:00.000Z	28 \| good	5.306 \| good	12.162 \| good	30.065 \| good	0.753 \| good	10.026 \| good	0.004 \| good
2026-03-07T16:00:00.000Z	27 \| good	5.306 \| good	12.162 \| good	26.88 \| good	0.682 \| good	9.376 \| good	0.004 \| good
2026-03-07T17:00:00.000Z	28 \| good	5.306 \| good	12.162 \| good	29.641 \| good	0.641 \| good	10.026 \| good	0.006 \| good
2026-03-07T18:00:00.000Z	28 \| good	5.151 \| good	11.716 \| good	29.869 \| good	0.618 \| good	9.396 \| good	0.006 \| good
2026-03-07T19:00:00.000Z	29 \| good	5.306 \| good	12.646 \| good	31.118 \| good	0.636 \| good	9.973 \| good	0.008 \| good
2026-03-07T20:00:00.000Z	33 \| good	5.79 \| good	13.13 \| good	27.518 \| good	0.645 \| good	9.726 \| good	0.013 \| good
2026-03-07T21:00:00.000Z	33 \| good	5.79 \| good	13.13 \| good	28.608 \| good	0.763 \| good	9.406 \| good	0.018 \| good
2026-03-07T22:00:00.000Z	33 \| good	5.79 \| good	13.13 \| good	26.634 \| good	0.764 \| good	8.231 \| good	0.019 \| good
2026-03-07T23:00:00.000Z	33 \| good	5.79 \| good	13.13 \| good	28.41 \| good	0.606 \| good	8.459 \| good	0.021 \| good
2026-03-08T00:00:00.000Z	49 \| good	9.322 \| good	30.699 \| good	24.661 \| good	0.764 \| good	11.415 \| good	1.005 \| good
2026-03-08T01:00:00.000Z	58 \| moderate	12.757 \| fine	22.75 \| good	24.671 \| good	0.588 \| good	10.618 \| good	0.879 \| good
2026-03-08T02:00:00.000Z	58 \| moderate	12.757 \| fine	22.75 \| good	24.126 \| good	0.586 \| good	8.608 \| good	0.798 \| good
2026-03-08T03:00:00.000Z	58 \| moderate	13.241 \| fine	23.234 \| good	24.53 \| good	0.603 \| good	8.196 \| good	0.658 \| good
2026-03-08T04:00:00.000Z	58 \| moderate	13.396 \| fine	23.854 \| good	25.717 \| good	0.53 \| good	8.031 \| good	0.634 \| good
2026-03-08T05:00:00.000Z	60 \| moderate	13.88 \| fine	24.338 \| good	25.124 \| good	0.804 \| good	7.516 \| good	0.6 \| good
2026-03-08T06:00:00.000Z	52 \| moderate	9.871 \| good	21.364 \| good	25.922 \| good	0.667 \| good	4.181 \| good	0.528 \| good
2026-03-08T07:00:00.000Z	60 \| moderate	13.88 \| fine	24.822 \| good	24.311 \| good	0.595 \| good	8.011 \| good	0.01 \| good
2026-03-08T08:00:00.000Z	60 \| moderate	14.035 \| fine	25.443 \| good	24.696 \| good	0.618 \| good	8.259 \| good	0.01 \| good
2026-03-08T09:00:00.000Z	62 \| moderate	14.519 \| fine	25.443 \| good	26.061 \| good	0.666 \| good	9.186 \| good	0.011 \| good
2026-03-08T10:00:00.000Z	62 \| moderate	14.519 \| fine	25.443 \| good	26.366 \| good	0.822 \| good	9.206 \| good	0.008 \| good
2026-03-08T11:00:00.000Z	62 \| moderate	14.519 \| fine	25.443 \| good	24.922 \| good	0.654 \| good	9.783 \| good	0.006 \| good
2026-03-08T12:00:00.000Z	62 \| moderate	14.519 \| fine	25.927 \| good	26.353 \| good	0.603 \| good	10.463 \| good	0.004 \| good
2026-03-08T13:00:00.000Z	62 \| moderate	15.158 \| fine	26.702 \| good	24.189 \| good	0.649 \| good	11.4 \| good	0.004 \| good
2026-03-08T14:00:00.000Z	62 \| moderate	15.158 \| fine	27.186 \| good	22.748 \| good	0.812 \| good	11.41 \| good	0.004 \| good
2026-03-08T15:00:00.000Z	64 \| moderate	15.642 \| fine	27.67 \| good	25.846 \| good	0.604 \| good	12.41 \| good	0.004 \| good
2026-03-08T16:00:00.000Z	64 \| moderate	16.281 \| fine	28.445 \| good	25.803 \| good	0.678 \| good	12.915 \| good	0.005 \| good
2026-03-08T17:00:00.000Z	66 \| moderate	16.92 \| fine	30.033 \| good	24.764 \| good	0.686 \| good	14.799 \| good	0.007 \| good
2026-03-08T18:00:00.000Z	67 \| moderate	17.559 \| fine	31.138 \| good	23.785 \| good	0.68 \| good	17.004 \| good	0.009 \| good
2026-03-08T19:00:00.000Z	67 \| moderate	18.198 \| fine	32.242 \| good	22.611 \| good	0.765 \| good	17.241 \| good	0.014 \| good
2026-03-08T20:00:00.000Z	69 \| moderate	18.992 \| fine	33.966 \| good	24.118 \| good	0.708 \| good	17.344 \| good	0.012 \| good
2026-03-08T21:00:00.000Z	71 \| moderate	19.631 \| fine	35.381 \| good	22.852 \| good	0.749 \| good	17.694 \| good	0.019 \| good
2026-03-08T22:00:00.000Z	71 \| moderate	20.426 \| fine	37.589 \| good	22.755 \| good	0.771 \| good	16.684 \| good	0.023 \| good
2026-03-08T23:00:00.000Z	75 \| moderate	21.549 \| fine	38.693 \| good	21.858 \| good	0.682 \| good	15.727 \| good	0.017 \| good
2026-03-09T00:00:00.000Z	79 \| moderate	23.58 \| fine	65.561 \| fine	23.285 \| good	0.783 \| good	15.255 \| good	0.735 \| good
2026-03-09T01:00:00.000Z	82 \| moderate	26.214 \| fine	46.575 \| good	21.828 \| good	0.739 \| good	14.72 \| good	0.646 \| good
2026-03-09T02:00:00.000Z	84 \| moderate	27.492 \| fine	48.299 \| good	24.098 \| good	0.583 \| good	12.948 \| good	0.67 \| good
2026-03-09T03:00:00.000Z	86 \| moderate	28.131 \| fine	49.887 \| good	21.678 \| good	0.58 \| good	12.186 \| good	0.538 \| good
2026-03-09T04:00:00.000Z	88 \| moderate	28.925 \| fine	52.406 \| good	23.592 \| good	0.578 \| good	11.156 \| good	0.495 \| good
2026-03-09T05:00:00.000Z	90 \| moderate	30.048 \| fine	53.51 \| good	23.044 \| good	0.778 \| good	10.044 \| good	0.462 \| good
2026-03-09T06:00:00.000Z	88 \| moderate	29.042 \| fine	56.213 \| fine	21.128 \| good	0.722 \| good	7.419 \| good	0.457 \| good
2026-03-09T07:00:00.000Z	94 \| moderate	31.966 \| fine	57.307 \| fine	22.926 \| good	0.653 \| good	12.611 \| good	0.011 \| good
2026-03-09T08:00:00.000Z	96 \| moderate	32.76 \| fine	59.515 \| fine	23.192 \| good	0.541 \| good	12.436 \| good	0.012 \| good
2026-03-09T09:00:00.000Z	97 \| moderate	33.554 \| fine	62.344 \| fine	23.843 \| good	0.657 \| good	13.805 \| good	0.01 \| good
2026-03-09T10:00:00.000Z	97 \| moderate	34.193 \| fine	63.448 \| fine	23.739 \| good	0.713 \| good	13.835 \| good	0.009 \| good
2026-03-09T11:00:00.000Z	99 \| moderate	34.832 \| fine	65.347 \| fine	21.421 \| good	0.815 \| good	16.895 \| good	0.008 \| good
2026-03-09T12:00:00.000Z	99 \| moderate	35.471 \| fine	66.451 \| fine	21.674 \| good	0.744 \| good	14.823 \| good	0.004 \| good
2026-03-09T12:00:00.000Z	99 \| moderate	34.832 \| fine	65.347 \| fine	21.421 \| good	0.815 \| good	16.895 \| good	0.008 \| good
2026-03-09T13:00:00.000Z	137 \| sensitive	49.654 \| moderate	53.188 \| good	14.927 \| good	0.673 \| good	21.712 \| good	0.271 \| good
2026-03-09T14:00:00.000Z	119 \| sensitive	42.849 \| moderate	50.335 \| good	19.228 \| good	0.633 \| good	19.843 \| good	0.254 \| good
2026-03-09T15:00:00.000Z	105 \| sensitive	37.148 \| moderate	48.635 \| good	20.394 \| good	0.566 \| good	18.771 \| good	0.239 \| good
2026-03-09T16:00:00.000Z	94 \| moderate	31.645 \| fine	42.499 \| good	25.633 \| good	0.453 \| good	18.007 \| good	0.216 \| good
2026-03-09T17:00:00.000Z	88 \| moderate	29.113 \| fine	36.57 \| good	19.252 \| good	0.574 \| good	18.703 \| good	0.226 \| good
2026-03-09T18:00:00.000Z	88 \| moderate	29.326 \| fine	37.402 \| good	11.812 \| good	0.933 \| good	24.862 \| good	0.26 \| good
2026-03-09T19:00:00.000Z	96 \| moderate	33.248 \| fine	43.09 \| good	3.177 \| good	1.035 \| good	29.795 \| good	0.292 \| good
2026-03-09T20:00:00.000Z	105 \| sensitive	36.681 \| moderate	40.581 \| good	2.074 \| good	0.983 \| good	33.983 \| good	0.309 \| good
2026-03-09T21:00:00.000Z	92 \| moderate	30.899 \| fine	33.899 \| good	0.947 \| good	1.029 \| good	36.928 \| good	0.328 \| good
2026-03-09T22:00:00.000Z	81 \| moderate	25.303 \| fine	30.589 \| good	3.494 \| good	0.67 \| good	26.098 \| good	0.272 \| good
2026-03-09T23:00:00.000Z	81 \| moderate	24.506 \| fine	30.323 \| good	7.153 \| good	0.535 \| good	22.157 \| good	0.23 \| good
2026-03-10T00:00:00.000Z	81 \| moderate	24.57 \| fine	30.076 \| good	10.36 \| good	0.543 \| good	21.418 \| good	0.219 \| good
2026-03-10T01:00:00.000Z	77 \| moderate	22.644 \| fine	27.64 \| good	12.745 \| good	0.412 \| good	15.8 \| good	0.193 \| good
2026-03-10T02:00:00.000Z	77 \| moderate	23.294 \| fine	26.837 \| good	17.959 \| good	0.259 \| good	11.452 \| good	0.164 \| good
2026-03-10T03:00:00.000Z	73 \| moderate	21.249 \| fine	27.748 \| good	21.892 \| good	0.199 \| good	9.536 \| good	0.15 \| good
2026-03-10T04:00:00.000Z	71 \| moderate	20.064 \| fine	24.576 \| good	23.447 \| good	0.184 \| good	6.747 \| good	0.144 \| good
2026-03-10T05:00:00.000Z	66 \| moderate	17.453 \| fine	20.993 \| good	25.308 \| good	0.181 \| good	4.957 \| good	0.143 \| good
2026-03-10T06:00:00.000Z	66 \| moderate	16.722 \| fine	20.518 \| good	24.581 \| good	0.222 \| good	5.49 \| good	0.144 \| good
2026-03-10T07:00:00.000Z	66 \| moderate	16.859 \| fine	20.505 \| good	20.871 \| good	0.263 \| good	7.625 \| good	0.151 \| good
2026-03-10T08:00:00.000Z	66 \| moderate	17.196 \| fine	20.025 \| good	19.848 \| good	0.447 \| good	10.545 \| good	0.155 \| good
2026-03-10T09:00:00.000Z	62 \| moderate	14.94 \| fine	17.805 \| good	19.535 \| good	0.521 \| good	11.866 \| good	0.16 \| good
2026-03-10T10:00:00.000Z	62 \| moderate	14.865 \| fine	17.911 \| good	20.931 \| good	0.432 \| good	11.077 \| good	0.158 \| good
2026-03-10T11:00:00.000Z	60 \| moderate	14.146 \| fine	16.981 \| good	28.532 \| good	0.322 \| good	6.904 \| good	0.152 \| good
2026-03-10T12:00:00.000Z	56 \| moderate	12.109 \| fine	14.687 \| good	30.631 \| good	0.253 \| good	5.346 \| good	0.15 \| good
2026-03-10T13:00:00.000Z	54 \| moderate	11.291 \| good	13.165 \| good	30.932 \| good	0.225 \| good	4.431 \| good	0.145 \| good
2026-03-10T14:00:00.000Z	52 \| moderate	10.42 \| good	11.823 \| good	30.721 \| good	0.216 \| good	4.57 \| good	0.144 \| good
2026-03-10T15:00:00.000Z	54 \| moderate	11.009 \| good	12.326 \| good	29.626 \| good	0.216 \| good	5.393 \| good	0.144 \| good
2026-03-10T16:00:00.000Z	54 \| moderate	10.655 \| good	11.847 \| good	31.294 \| good	0.213 \| good	5.698 \| good	0.146 \| good
2026-03-10T17:00:00.000Z	49 \| good	8.681 \| good	11.772 \| good	31.732 \| good	0.277 \| good	7.589 \| good	0.146 \| good
2026-03-10T18:00:00.000Z	49 \| good	8.645 \| good	11.678 \| good	28.895 \| good	0.43 \| good	11.135 \| good	0.162 \| good
2026-03-10T19:00:00.000Z	44 \| good	8.349 \| good	10.809 \| good	27.226 \| good	0.591 \| good	14.144 \| good	0.168 \| good
2026-03-10T20:00:00.000Z	49 \| good	8.771 \| good	11.265 \| good	27.271 \| good	0.65 \| good	14.735 \| good	0.161 \| good
2026-03-10T21:00:00.000Z	52 \| moderate	10.24 \| good	11.674 \| good	26.108 \| good	0.649 \| good	14.282 \| good	0.163 \| good
2026-03-10T22:00:00.000Z	54 \| moderate	10.6 \| good	12.86 \| good	25.6 \| good	0.654 \| good	12.425 \| good	0.159 \| good
2026-03-10T23:00:00.000Z	49 \| good	9.345 \| good	13.173 \| good	26.446 \| good	0.564 \| good	10.041 \| good	0.153 \| good
2026-03-11T00:00:00.000Z	44 \| good	7.664 \| good	11.422 \| good	31.559 \| good	0.445 \| good	6.854 \| good	0.144 \| good
2026-03-11T01:00:00.000Z	33 \| good	5.635 \| good	8.852 \| good	34.843 \| good	0.403 \| good	5.098 \| good	0.137 \| good
2026-03-11T02:00:00.000Z	34 \| good	4.334 \| good	8.491 \| good	37.413 \| good	0.304 \| good	3.97 \| good	0.133 \| good
2026-03-11T03:00:00.000Z	33 \| good	4.475 \| good	7.598 \| good	36.132 \| good	0.313 \| good	3.005 \| good	0.13 \| good
2026-03-11T04:00:00.000Z	35 \| good	3.898 \| good	7.271 \| good	37.587 \| good	0.228 \| good	2.867 \| good	0.129 \| good
2026-03-11T05:00:00.000Z	35 \| good	3.356 \| good	5.928 \| good	38.275 \| good	0.173 \| good	2.433 \| good	0.128 \| good
2026-03-11T06:00:00.000Z	36 \| good	3.483 \| good	5.375 \| good	39.139 \| good	0.204 \| good	2.523 \| good	0.129 \| good
2026-03-11T07:00:00.000Z	34 \| good	3.134 \| good	4.147 \| good	37.189 \| good	0.222 \| good	3.386 \| good	0.132 \| good
2026-03-11T08:00:00.000Z	33 \| good	2.777 \| good	4.154 \| good	35.954 \| good	0.239 \| good	5.642 \| good	0.135 \| good
2026-03-11T09:00:00.000Z	32 \| good	2.939 \| good	3.897 \| good	34.928 \| good	0.298 \| good	6.556 \| good	0.136 \| good
2026-03-11T10:00:00.000Z	31 \| good	2.837 \| good	4.027 \| good	33.299 \| good	0.254 \| good	4.976 \| good	0.134 \| good
2026-03-11T11:00:00.000Z	31 \| good	2.94 \| good	4.49 \| good	34.415 \| good	0.208 \| good	3.448 \| good	0.129 \| good
2026-03-11T12:00:00.000Z	36 \| good	3.433 \| good	5.974 \| good	39.04 \| good	0.183 \| good	2.577 \| good	0.125 \| 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?