What are the current PM10 levels at Royston, Hertfordshire?

The current PM10 levels in Royston, Hertfordshire are 8.812 μg/m3.

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

The current sulfur dioxide (SO2) levels in Royston, Hertfordshire are 0.893 ppb.

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

The current ozone (O3) levels at Royston, Hertfordshire is 27.407 ppm.

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

The current nitrogen dioxide (NO2) levels at Royston, Hertfordshire is 5.448 ppb.

Real-time air quality index in Royston, Hertfordshire today

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

The measured PM2.5 levels in Royston, Hertfordshire at present are 3.98 μg/m3.

Stay updated with real-time air quality in Royston, 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

Royston, Hertfordshire

Last updated: ... (Local time)

Common air pollutants in Royston, Hertfordshire

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

3.98 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

8.81 μg/m³

155

255

425

605+

Ozone (O₃)

27.41 ppb

201

201+

Sulfur Dioxide (SO₂)

0.89 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.45 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.11 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Royston, Hertfordshire

Get Live Pollen Counts

Royston, Hertfordshire

Scroll To Air Quality Map

Track live Royston, Hertfordshire air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-05-12T13:00:00.000Z	33 \| good	5.737 \| good	12.204 \| good	28.528 \| good	0.796 \| good	5.129 \| good	0.12 \| good
2026-05-12T14:00:00.000Z	30 \| good	5.185 \| good	16.377 \| good	31.99 \| good	0.796 \| good	4.341 \| good	0.111 \| good
2026-05-12T15:00:00.000Z	33 \| good	5.623 \| good	15.672 \| good	36.186 \| good	0.63 \| good	7.028 \| good	0.113 \| good
2026-05-12T16:00:00.000Z	36 \| good	6.352 \| good	14.282 \| good	39.247 \| good	0.716 \| good	6.377 \| good	0.117 \| good
2026-05-12T17:00:00.000Z	38 \| good	5.453 \| good	16.386 \| good	40.605 \| good	0.717 \| good	6.878 \| good	0.661 \| good
2026-05-12T18:00:00.000Z	40 \| good	5.39 \| good	15.681 \| good	42.776 \| good	0.717 \| good	6.961 \| good	0.661 \| good
2026-05-12T19:00:00.000Z	40 \| good	6.608 \| good	25.596 \| good	43.009 \| good	0.638 \| good	5.396 \| good	0.163 \| good
2026-05-12T20:00:00.000Z	44 \| good	7.633 \| good	26.005 \| good	42.034 \| good	0.715 \| good	4.837 \| good	0.155 \| good
2026-05-12T21:00:00.000Z	38 \| good	6.724 \| good	15.47 \| good	41.087 \| good	0.84 \| good	5.328 \| good	0.153 \| good
2026-05-12T22:00:00.000Z	38 \| good	6.647 \| good	12.613 \| good	39.154 \| good	0.84 \| good	7.388 \| good	0.153 \| good
2026-05-12T23:00:00.000Z	38 \| good	6.873 \| good	15.687 \| good	36.805 \| good	0.716 \| good	15.351 \| good	0.661 \| good
2026-05-13T00:00:00.000Z	38 \| good	7.209 \| good	13.394 \| good	35.683 \| good	0.69 \| good	5.465 \| good	0.132 \| good
2026-05-13T01:00:00.000Z	34 \| good	5.758 \| good	26.981 \| good	37.279 \| good	0.557 \| good	4.902 \| good	0.661 \| good
2026-05-13T02:00:00.000Z	33 \| good	5.568 \| good	12.285 \| good	34.413 \| good	0.774 \| good	3.437 \| good	0.661 \| good
2026-05-13T03:00:00.000Z	33 \| good	4.508 \| good	26.894 \| good	35.939 \| good	0.716 \| good	3.733 \| good	0.661 \| good
2026-05-13T04:00:00.000Z	33 \| good	6.135 \| good	15.734 \| good	29.63 \| good	0.717 \| good	4.324 \| good	0.661 \| good
2026-05-13T05:00:00.000Z	33 \| good	5.787 \| good	18.165 \| good	28.278 \| good	0.819 \| good	2.927 \| good	0.661 \| good
2026-05-13T06:00:00.000Z	28 \| good	5.09 \| good	15.541 \| good	30.495 \| good	0.693 \| good	4.544 \| good	0.661 \| good
2026-05-13T07:00:00.000Z	27 \| good	5.048 \| good	16.939 \| good	29.049 \| good	0.889 \| good	7.872 \| good	0.144 \| good
2026-05-13T08:00:00.000Z	38 \| good	6.632 \| good	15.807 \| good	30.315 \| good	0.854 \| good	8.228 \| good	0.661 \| good
2026-05-13T09:00:00.000Z	38 \| good	6.695 \| good	24.872 \| good	29.04 \| good	0.775 \| good	5.567 \| good	0.661 \| good
2026-05-13T10:00:00.000Z	38 \| good	6.702 \| good	16.291 \| good	29.224 \| good	0.775 \| good	5.34 \| good	0.125 \| good
2026-05-13T11:00:00.000Z	38 \| good	6.986 \| good	22.164 \| good	27.888 \| good	0.891 \| good	3.692 \| good	0.122 \| good
2026-05-13T12:00:00.000Z	38 \| good	6.509 \| good	18.108 \| good	29.444 \| good	0.816 \| good	5.535 \| good	0.115 \| good
2026-05-13T13:00:00.000Z	27 \| good	5.356 \| good	19.089 \| good	29.37 \| good	0.997 \| good	5.645 \| good	0.117 \| good
2026-05-13T14:00:00.000Z	33 \| good	6.353 \| good	14.035 \| good	31.502 \| good	0.891 \| good	5.704 \| good	0.118 \| good
2026-05-13T15:00:00.000Z	33 \| good	5.83 \| good	16.046 \| good	33.924 \| good	0.891 \| good	5.882 \| good	0.113 \| good
2026-05-13T16:00:00.000Z	31 \| good	4.696 \| good	10.424 \| good	34.265 \| good	0.999 \| good	6.374 \| good	0.117 \| good
2026-05-13T17:00:00.000Z	31 \| good	5.313 \| good	11.185 \| good	33.939 \| good	0.891 \| good	6.548 \| good	0.122 \| good
2026-05-13T18:00:00.000Z	31 \| good	5.274 \| good	9.098 \| good	33.229 \| good	0.892 \| good	3.897 \| good	0.139 \| good
2026-05-13T19:00:00.000Z	31 \| good	5.398 \| good	10.342 \| good	34.033 \| good	0.924 \| good	4.139 \| good	0.197 \| good
2026-05-13T20:00:00.000Z	30 \| good	5.47 \| good	9.484 \| good	32.287 \| good	0.927 \| good	5.116 \| good	0.211 \| good
2026-05-13T21:00:00.000Z	33 \| good	5.786 \| good	9.514 \| good	31.222 \| good	0.932 \| good	5.64 \| good	0.2 \| good
2026-05-13T22:00:00.000Z	27 \| good	5.454 \| good	11.606 \| good	29.097 \| good	0.82 \| good	5.888 \| good	0.216 \| good
2026-05-13T23:00:00.000Z	27 \| good	5.232 \| good	10.562 \| good	29.247 \| good	0.819 \| good	6.639 \| good	0.224 \| good
2026-05-14T00:00:00.000Z	27 \| good	5.159 \| good	16.016 \| good	28.605 \| good	0.819 \| good	6.089 \| good	0.205 \| good
2026-05-14T01:00:00.000Z	27 \| good	4.889 \| good	15.597 \| good	26.877 \| good	0.819 \| good	4.375 \| good	0.167 \| good
2026-05-14T02:00:00.000Z	22 \| good	4.183 \| good	16.018 \| good	24.163 \| good	0.819 \| good	3.376 \| good	0.167 \| good
2026-05-14T03:00:00.000Z	27 \| good	4.828 \| good	13.05 \| good	22.937 \| good	0.82 \| good	3.93 \| good	0.15 \| good
2026-05-14T04:00:00.000Z	22 \| good	4.07 \| good	13.683 \| good	23.242 \| good	0.82 \| good	3.734 \| good	0.158 \| good
2026-05-14T05:00:00.000Z	22 \| good	3.759 \| good	12.368 \| good	24.224 \| good	0.823 \| good	4.729 \| good	0.172 \| good
2026-05-14T06:00:00.000Z	23 \| good	3.669 \| good	8.655 \| good	24.501 \| good	0.824 \| good	6.185 \| good	0.208 \| good
2026-05-14T07:00:00.000Z	22 \| good	3.571 \| good	13.373 \| good	23.738 \| good	0.821 \| good	7.885 \| good	0.177 \| good
2026-05-14T08:00:00.000Z	22 \| good	4.228 \| good	12.557 \| good	23.26 \| good	0.82 \| good	7.566 \| good	0.157 \| good
2026-05-14T09:00:00.000Z	24 \| good	4.353 \| good	9.626 \| good	25.654 \| good	0.894 \| good	6.505 \| good	0.13 \| good
2026-05-14T10:00:00.000Z	23 \| good	3.354 \| good	10.211 \| good	24.995 \| good	0.819 \| good	6.209 \| good	0.118 \| good
2026-05-14T11:00:00.000Z	24 \| good	3.693 \| good	8.166 \| good	26.079 \| good	0.999 \| good	4.797 \| good	0.118 \| good
2026-05-14T12:00:00.000Z	25 \| good	3.98 \| good	8.812 \| good	27.407 \| good	0.893 \| good	5.448 \| good	0.108 \| good
2026-05-14T12:00:00.000Z	25 \| good	3.98 \| good	8.812 \| good	27.407 \| good	0.893 \| good	5.448 \| good	0.108 \| good
2026-05-14T13:00:00.000Z	39 \| good	3.62 \| good	7.093 \| good	42.1 \| good	0.082 \| good	1.017 \| good	0.11 \| good
2026-05-14T14:00:00.000Z	39 \| good	3.797 \| good	6.806 \| good	42.243 \| good	0.088 \| good	1.132 \| good	0.111 \| good
2026-05-14T15:00:00.000Z	40 \| good	4.088 \| good	6.597 \| good	42.544 \| good	0.109 \| good	1.339 \| good	0.113 \| good
2026-05-14T16:00:00.000Z	40 \| good	4.112 \| good	6.673 \| good	42.701 \| good	0.148 \| good	1.518 \| good	0.113 \| good
2026-05-14T17:00:00.000Z	39 \| good	4.09 \| good	6.623 \| good	42.158 \| good	0.169 \| good	1.774 \| good	0.115 \| good
2026-05-14T18:00:00.000Z	37 \| good	4.202 \| good	6.352 \| good	40.443 \| good	0.21 \| good	2.325 \| good	0.118 \| good
2026-05-14T19:00:00.000Z	33 \| good	3.922 \| good	5.671 \| good	36.471 \| good	0.261 \| good	3.198 \| good	0.12 \| good
2026-05-14T20:00:00.000Z	32 \| good	4.695 \| good	6.088 \| good	35.077 \| good	0.29 \| good	3.565 \| good	0.123 \| good
2026-05-14T21:00:00.000Z	29 \| good	5.273 \| good	7.264 \| good	31.364 \| good	0.343 \| good	4.182 \| good	0.125 \| good
2026-05-14T22:00:00.000Z	33 \| good	5.847 \| good	8.006 \| good	29.708 \| good	0.502 \| good	4.469 \| good	0.128 \| good
2026-05-14T23:00:00.000Z	33 \| good	5.835 \| good	7.667 \| good	28.245 \| good	0.541 \| good	3.943 \| good	0.128 \| good
2026-05-15T00:00:00.000Z	38 \| good	7.033 \| good	8.438 \| good	25.91 \| good	0.66 \| good	3.938 \| good	0.13 \| good
2026-05-15T01:00:00.000Z	44 \| good	7.648 \| good	9.656 \| good	25.548 \| good	0.819 \| good	3.973 \| good	0.132 \| good
2026-05-15T02:00:00.000Z	44 \| good	8.142 \| good	10.345 \| good	24.271 \| good	0.657 \| good	3.884 \| good	0.13 \| good
2026-05-15T03:00:00.000Z	44 \| good	7.908 \| good	10.418 \| good	23.502 \| good	0.463 \| good	3.629 \| good	0.129 \| good
2026-05-15T04:00:00.000Z	38 \| good	7.205 \| good	10.656 \| good	24.843 \| good	0.347 \| good	3.195 \| good	0.132 \| good
2026-05-15T05:00:00.000Z	33 \| good	6.409 \| good	10.976 \| good	25.854 \| good	0.266 \| good	2.7 \| good	0.125 \| good
2026-05-15T06:00:00.000Z	33 \| good	5.548 \| good	9.598 \| good	27.684 \| good	0.208 \| good	2.451 \| good	0.12 \| good
2026-05-15T07:00:00.000Z	29 \| good	4.136 \| good	7.686 \| good	31.092 \| good	0.201 \| good	2.15 \| good	0.119 \| good
2026-05-15T08:00:00.000Z	31 \| good	3.193 \| good	6.959 \| good	33.328 \| good	0.18 \| good	1.997 \| good	0.118 \| good
2026-05-15T09:00:00.000Z	35 \| good	2.907 \| good	6.67 \| good	37.581 \| good	0.16 \| good	1.663 \| good	0.117 \| good
2026-05-15T10:00:00.000Z	37 \| good	2.958 \| good	5.765 \| good	40.346 \| good	0.15 \| good	1.332 \| good	0.116 \| good
2026-05-15T11:00:00.000Z	38 \| good	3.149 \| good	5.828 \| good	41.321 \| good	0.135 \| good	1.245 \| good	0.115 \| good
2026-05-15T12:00:00.000Z	40 \| good	3.486 \| good	6.237 \| good	42.562 \| good	0.132 \| good	1.103 \| good	0.115 \| good
2026-05-15T13:00:00.000Z	41 \| good	3.602 \| good	6.718 \| good	44.078 \| good	0.128 \| good	0.959 \| good	0.115 \| good
2026-05-15T14:00:00.000Z	43 \| good	3.806 \| good	7.125 \| good	45.811 \| good	0.136 \| good	0.947 \| good	0.114 \| good
2026-05-15T15:00:00.000Z	44 \| good	3.994 \| good	7.486 \| good	47.278 \| good	0.142 \| good	0.98 \| good	0.113 \| good
2026-05-15T16:00:00.000Z	44 \| good	3.913 \| good	7.81 \| good	47.233 \| good	0.143 \| good	1.159 \| good	0.113 \| good
2026-05-15T17:00:00.000Z	43 \| good	4.085 \| good	7.85 \| good	45.96 \| good	0.174 \| good	1.399 \| good	0.114 \| good
2026-05-15T18:00:00.000Z	42 \| good	4.268 \| good	7.586 \| good	44.878 \| good	0.207 \| good	1.686 \| good	0.115 \| good
2026-05-15T19:00:00.000Z	38 \| good	5.059 \| good	7.621 \| good	40.812 \| good	0.263 \| good	2.196 \| good	0.119 \| good
2026-05-15T20:00:00.000Z	33 \| good	5.494 \| good	8.201 \| good	35.965 \| good	0.258 \| good	3.024 \| good	0.121 \| good
2026-05-15T21:00:00.000Z	33 \| good	5.658 \| good	8.436 \| good	33.367 \| good	0.267 \| good	3.453 \| good	0.123 \| good
2026-05-15T22:00:00.000Z	33 \| good	6.136 \| good	8.835 \| good	32.117 \| good	0.273 \| good	3.712 \| good	0.123 \| good
2026-05-15T23:00:00.000Z	33 \| good	6.386 \| good	9.355 \| good	30.471 \| good	0.256 \| good	3.747 \| good	0.122 \| good
2026-05-16T00:00:00.000Z	38 \| good	6.785 \| good	9.646 \| good	28.353 \| good	0.211 \| good	3.821 \| good	0.123 \| good
2026-05-16T01:00:00.000Z	38 \| good	7.111 \| good	9.856 \| good	26.332 \| good	0.193 \| good	4.017 \| good	0.123 \| good
2026-05-16T02:00:00.000Z	44 \| good	7.787 \| good	9.905 \| good	24.574 \| good	0.181 \| good	4.11 \| good	0.125 \| good
2026-05-16T03:00:00.000Z	44 \| good	8.127 \| good	10.89 \| good	23.703 \| good	0.175 \| good	4.021 \| good	0.127 \| good
2026-05-16T04:00:00.000Z	49 \| good	8.574 \| good	11.641 \| good	23.817 \| good	0.214 \| good	4.379 \| good	0.128 \| good
2026-05-16T05:00:00.000Z	49 \| good	9.318 \| good	11.812 \| good	25.271 \| good	0.288 \| good	4.337 \| good	0.126 \| good
2026-05-16T06:00:00.000Z	52 \| moderate	10.368 \| good	13.248 \| good	26.174 \| good	0.349 \| good	4.345 \| good	0.134 \| good
2026-05-16T07:00:00.000Z	52 \| moderate	9.892 \| good	13.972 \| good	31.38 \| good	0.31 \| good	3.069 \| good	0.127 \| good
2026-05-16T08:00:00.000Z	33 \| good	6.467 \| good	10.889 \| good	34.949 \| good	0.227 \| good	2.059 \| good	0.12 \| good
2026-05-16T09:00:00.000Z	35 \| good	4.112 \| good	7.482 \| good	38.435 \| good	0.165 \| good	1.433 \| good	0.115 \| good
2026-05-16T10:00:00.000Z	41 \| good	3.3 \| good	6.287 \| good	43.552 \| good	0.119 \| good	1.08 \| good	0.113 \| good
2026-05-16T11:00:00.000Z	42 \| good	2.938 \| good	5.817 \| good	45.351 \| good	0.101 \| good	0.844 \| good	0.111 \| good
2026-05-16T12:00:00.000Z	43 \| good	2.797 \| good	5.646 \| good	45.542 \| good	0.082 \| good	0.776 \| good	0.11 \| good

Royston

Empower business decisions with accurate air quality data

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

0.12ppm

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 Royston, Hertfordshire updated?

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

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

The worst air quality in Royston, Hertfordshire was recorded at 12:00:00 on 2026-05-13.

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

The best air quality in Royston, Hertfordshire was recorded at 08:00:00 on 2026-05-14.

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

The real-time air quality index in Royston, Hertfordshire is 25, currently categorized as Good.

Which pollutant is found most often in Royston, Hertfordshire?

The most common pollutant in Royston, Hertfordshire is O3.

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

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

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

The measured PM_2.5 levels in Royston, Hertfordshire at present are 3.98 μg/m³.

What are the current PM₁₀ levels at Royston, Hertfordshire?

The current PM₁₀ levels in Royston, Hertfordshire are 8.812 μg/m³.

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

The current carbon monoxide (CO) level in Royston, Hertfordshire is 0.108 ppm.

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

The current sulfur dioxide (SO₂) levels in Royston, Hertfordshire are 0.893 ppb.

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

The current ozone (O₃) levels at Royston, Hertfordshire is 27.407 ppm.

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

The current nitrogen dioxide (NO₂) levels at Royston, Hertfordshire is 5.448 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-05-12T13:00:00.000Z	33 \| good	5.737 \| good	12.204 \| good	28.528 \| good	0.796 \| good	5.129 \| good	0.12 \| good
2026-05-12T14:00:00.000Z	30 \| good	5.185 \| good	16.377 \| good	31.99 \| good	0.796 \| good	4.341 \| good	0.111 \| good
2026-05-12T15:00:00.000Z	33 \| good	5.623 \| good	15.672 \| good	36.186 \| good	0.63 \| good	7.028 \| good	0.113 \| good
2026-05-12T16:00:00.000Z	36 \| good	6.352 \| good	14.282 \| good	39.247 \| good	0.716 \| good	6.377 \| good	0.117 \| good
2026-05-12T17:00:00.000Z	38 \| good	5.453 \| good	16.386 \| good	40.605 \| good	0.717 \| good	6.878 \| good	0.661 \| good
2026-05-12T18:00:00.000Z	40 \| good	5.39 \| good	15.681 \| good	42.776 \| good	0.717 \| good	6.961 \| good	0.661 \| good
2026-05-12T19:00:00.000Z	40 \| good	6.608 \| good	25.596 \| good	43.009 \| good	0.638 \| good	5.396 \| good	0.163 \| good
2026-05-12T20:00:00.000Z	44 \| good	7.633 \| good	26.005 \| good	42.034 \| good	0.715 \| good	4.837 \| good	0.155 \| good
2026-05-12T21:00:00.000Z	38 \| good	6.724 \| good	15.47 \| good	41.087 \| good	0.84 \| good	5.328 \| good	0.153 \| good
2026-05-12T22:00:00.000Z	38 \| good	6.647 \| good	12.613 \| good	39.154 \| good	0.84 \| good	7.388 \| good	0.153 \| good
2026-05-12T23:00:00.000Z	38 \| good	6.873 \| good	15.687 \| good	36.805 \| good	0.716 \| good	15.351 \| good	0.661 \| good
2026-05-13T00:00:00.000Z	38 \| good	7.209 \| good	13.394 \| good	35.683 \| good	0.69 \| good	5.465 \| good	0.132 \| good
2026-05-13T01:00:00.000Z	34 \| good	5.758 \| good	26.981 \| good	37.279 \| good	0.557 \| good	4.902 \| good	0.661 \| good
2026-05-13T02:00:00.000Z	33 \| good	5.568 \| good	12.285 \| good	34.413 \| good	0.774 \| good	3.437 \| good	0.661 \| good
2026-05-13T03:00:00.000Z	33 \| good	4.508 \| good	26.894 \| good	35.939 \| good	0.716 \| good	3.733 \| good	0.661 \| good
2026-05-13T04:00:00.000Z	33 \| good	6.135 \| good	15.734 \| good	29.63 \| good	0.717 \| good	4.324 \| good	0.661 \| good
2026-05-13T05:00:00.000Z	33 \| good	5.787 \| good	18.165 \| good	28.278 \| good	0.819 \| good	2.927 \| good	0.661 \| good
2026-05-13T06:00:00.000Z	28 \| good	5.09 \| good	15.541 \| good	30.495 \| good	0.693 \| good	4.544 \| good	0.661 \| good
2026-05-13T07:00:00.000Z	27 \| good	5.048 \| good	16.939 \| good	29.049 \| good	0.889 \| good	7.872 \| good	0.144 \| good
2026-05-13T08:00:00.000Z	38 \| good	6.632 \| good	15.807 \| good	30.315 \| good	0.854 \| good	8.228 \| good	0.661 \| good
2026-05-13T09:00:00.000Z	38 \| good	6.695 \| good	24.872 \| good	29.04 \| good	0.775 \| good	5.567 \| good	0.661 \| good
2026-05-13T10:00:00.000Z	38 \| good	6.702 \| good	16.291 \| good	29.224 \| good	0.775 \| good	5.34 \| good	0.125 \| good
2026-05-13T11:00:00.000Z	38 \| good	6.986 \| good	22.164 \| good	27.888 \| good	0.891 \| good	3.692 \| good	0.122 \| good
2026-05-13T12:00:00.000Z	38 \| good	6.509 \| good	18.108 \| good	29.444 \| good	0.816 \| good	5.535 \| good	0.115 \| good
2026-05-13T13:00:00.000Z	27 \| good	5.356 \| good	19.089 \| good	29.37 \| good	0.997 \| good	5.645 \| good	0.117 \| good
2026-05-13T14:00:00.000Z	33 \| good	6.353 \| good	14.035 \| good	31.502 \| good	0.891 \| good	5.704 \| good	0.118 \| good
2026-05-13T15:00:00.000Z	33 \| good	5.83 \| good	16.046 \| good	33.924 \| good	0.891 \| good	5.882 \| good	0.113 \| good
2026-05-13T16:00:00.000Z	31 \| good	4.696 \| good	10.424 \| good	34.265 \| good	0.999 \| good	6.374 \| good	0.117 \| good
2026-05-13T17:00:00.000Z	31 \| good	5.313 \| good	11.185 \| good	33.939 \| good	0.891 \| good	6.548 \| good	0.122 \| good
2026-05-13T18:00:00.000Z	31 \| good	5.274 \| good	9.098 \| good	33.229 \| good	0.892 \| good	3.897 \| good	0.139 \| good
2026-05-13T19:00:00.000Z	31 \| good	5.398 \| good	10.342 \| good	34.033 \| good	0.924 \| good	4.139 \| good	0.197 \| good
2026-05-13T20:00:00.000Z	30 \| good	5.47 \| good	9.484 \| good	32.287 \| good	0.927 \| good	5.116 \| good	0.211 \| good
2026-05-13T21:00:00.000Z	33 \| good	5.786 \| good	9.514 \| good	31.222 \| good	0.932 \| good	5.64 \| good	0.2 \| good
2026-05-13T22:00:00.000Z	27 \| good	5.454 \| good	11.606 \| good	29.097 \| good	0.82 \| good	5.888 \| good	0.216 \| good
2026-05-13T23:00:00.000Z	27 \| good	5.232 \| good	10.562 \| good	29.247 \| good	0.819 \| good	6.639 \| good	0.224 \| good
2026-05-14T00:00:00.000Z	27 \| good	5.159 \| good	16.016 \| good	28.605 \| good	0.819 \| good	6.089 \| good	0.205 \| good
2026-05-14T01:00:00.000Z	27 \| good	4.889 \| good	15.597 \| good	26.877 \| good	0.819 \| good	4.375 \| good	0.167 \| good
2026-05-14T02:00:00.000Z	22 \| good	4.183 \| good	16.018 \| good	24.163 \| good	0.819 \| good	3.376 \| good	0.167 \| good
2026-05-14T03:00:00.000Z	27 \| good	4.828 \| good	13.05 \| good	22.937 \| good	0.82 \| good	3.93 \| good	0.15 \| good
2026-05-14T04:00:00.000Z	22 \| good	4.07 \| good	13.683 \| good	23.242 \| good	0.82 \| good	3.734 \| good	0.158 \| good
2026-05-14T05:00:00.000Z	22 \| good	3.759 \| good	12.368 \| good	24.224 \| good	0.823 \| good	4.729 \| good	0.172 \| good
2026-05-14T06:00:00.000Z	23 \| good	3.669 \| good	8.655 \| good	24.501 \| good	0.824 \| good	6.185 \| good	0.208 \| good
2026-05-14T07:00:00.000Z	22 \| good	3.571 \| good	13.373 \| good	23.738 \| good	0.821 \| good	7.885 \| good	0.177 \| good
2026-05-14T08:00:00.000Z	22 \| good	4.228 \| good	12.557 \| good	23.26 \| good	0.82 \| good	7.566 \| good	0.157 \| good
2026-05-14T09:00:00.000Z	24 \| good	4.353 \| good	9.626 \| good	25.654 \| good	0.894 \| good	6.505 \| good	0.13 \| good
2026-05-14T10:00:00.000Z	23 \| good	3.354 \| good	10.211 \| good	24.995 \| good	0.819 \| good	6.209 \| good	0.118 \| good
2026-05-14T11:00:00.000Z	24 \| good	3.693 \| good	8.166 \| good	26.079 \| good	0.999 \| good	4.797 \| good	0.118 \| good
2026-05-14T12:00:00.000Z	25 \| good	3.98 \| good	8.812 \| good	27.407 \| good	0.893 \| good	5.448 \| good	0.108 \| good
2026-05-14T12:00:00.000Z	25 \| good	3.98 \| good	8.812 \| good	27.407 \| good	0.893 \| good	5.448 \| good	0.108 \| good
2026-05-14T13:00:00.000Z	39 \| good	3.62 \| good	7.093 \| good	42.1 \| good	0.082 \| good	1.017 \| good	0.11 \| good
2026-05-14T14:00:00.000Z	39 \| good	3.797 \| good	6.806 \| good	42.243 \| good	0.088 \| good	1.132 \| good	0.111 \| good
2026-05-14T15:00:00.000Z	40 \| good	4.088 \| good	6.597 \| good	42.544 \| good	0.109 \| good	1.339 \| good	0.113 \| good
2026-05-14T16:00:00.000Z	40 \| good	4.112 \| good	6.673 \| good	42.701 \| good	0.148 \| good	1.518 \| good	0.113 \| good
2026-05-14T17:00:00.000Z	39 \| good	4.09 \| good	6.623 \| good	42.158 \| good	0.169 \| good	1.774 \| good	0.115 \| good
2026-05-14T18:00:00.000Z	37 \| good	4.202 \| good	6.352 \| good	40.443 \| good	0.21 \| good	2.325 \| good	0.118 \| good
2026-05-14T19:00:00.000Z	33 \| good	3.922 \| good	5.671 \| good	36.471 \| good	0.261 \| good	3.198 \| good	0.12 \| good
2026-05-14T20:00:00.000Z	32 \| good	4.695 \| good	6.088 \| good	35.077 \| good	0.29 \| good	3.565 \| good	0.123 \| good
2026-05-14T21:00:00.000Z	29 \| good	5.273 \| good	7.264 \| good	31.364 \| good	0.343 \| good	4.182 \| good	0.125 \| good
2026-05-14T22:00:00.000Z	33 \| good	5.847 \| good	8.006 \| good	29.708 \| good	0.502 \| good	4.469 \| good	0.128 \| good
2026-05-14T23:00:00.000Z	33 \| good	5.835 \| good	7.667 \| good	28.245 \| good	0.541 \| good	3.943 \| good	0.128 \| good
2026-05-15T00:00:00.000Z	38 \| good	7.033 \| good	8.438 \| good	25.91 \| good	0.66 \| good	3.938 \| good	0.13 \| good
2026-05-15T01:00:00.000Z	44 \| good	7.648 \| good	9.656 \| good	25.548 \| good	0.819 \| good	3.973 \| good	0.132 \| good
2026-05-15T02:00:00.000Z	44 \| good	8.142 \| good	10.345 \| good	24.271 \| good	0.657 \| good	3.884 \| good	0.13 \| good
2026-05-15T03:00:00.000Z	44 \| good	7.908 \| good	10.418 \| good	23.502 \| good	0.463 \| good	3.629 \| good	0.129 \| good
2026-05-15T04:00:00.000Z	38 \| good	7.205 \| good	10.656 \| good	24.843 \| good	0.347 \| good	3.195 \| good	0.132 \| good
2026-05-15T05:00:00.000Z	33 \| good	6.409 \| good	10.976 \| good	25.854 \| good	0.266 \| good	2.7 \| good	0.125 \| good
2026-05-15T06:00:00.000Z	33 \| good	5.548 \| good	9.598 \| good	27.684 \| good	0.208 \| good	2.451 \| good	0.12 \| good
2026-05-15T07:00:00.000Z	29 \| good	4.136 \| good	7.686 \| good	31.092 \| good	0.201 \| good	2.15 \| good	0.119 \| good
2026-05-15T08:00:00.000Z	31 \| good	3.193 \| good	6.959 \| good	33.328 \| good	0.18 \| good	1.997 \| good	0.118 \| good
2026-05-15T09:00:00.000Z	35 \| good	2.907 \| good	6.67 \| good	37.581 \| good	0.16 \| good	1.663 \| good	0.117 \| good
2026-05-15T10:00:00.000Z	37 \| good	2.958 \| good	5.765 \| good	40.346 \| good	0.15 \| good	1.332 \| good	0.116 \| good
2026-05-15T11:00:00.000Z	38 \| good	3.149 \| good	5.828 \| good	41.321 \| good	0.135 \| good	1.245 \| good	0.115 \| good
2026-05-15T12:00:00.000Z	40 \| good	3.486 \| good	6.237 \| good	42.562 \| good	0.132 \| good	1.103 \| good	0.115 \| good
2026-05-15T13:00:00.000Z	41 \| good	3.602 \| good	6.718 \| good	44.078 \| good	0.128 \| good	0.959 \| good	0.115 \| good
2026-05-15T14:00:00.000Z	43 \| good	3.806 \| good	7.125 \| good	45.811 \| good	0.136 \| good	0.947 \| good	0.114 \| good
2026-05-15T15:00:00.000Z	44 \| good	3.994 \| good	7.486 \| good	47.278 \| good	0.142 \| good	0.98 \| good	0.113 \| good
2026-05-15T16:00:00.000Z	44 \| good	3.913 \| good	7.81 \| good	47.233 \| good	0.143 \| good	1.159 \| good	0.113 \| good
2026-05-15T17:00:00.000Z	43 \| good	4.085 \| good	7.85 \| good	45.96 \| good	0.174 \| good	1.399 \| good	0.114 \| good
2026-05-15T18:00:00.000Z	42 \| good	4.268 \| good	7.586 \| good	44.878 \| good	0.207 \| good	1.686 \| good	0.115 \| good
2026-05-15T19:00:00.000Z	38 \| good	5.059 \| good	7.621 \| good	40.812 \| good	0.263 \| good	2.196 \| good	0.119 \| good
2026-05-15T20:00:00.000Z	33 \| good	5.494 \| good	8.201 \| good	35.965 \| good	0.258 \| good	3.024 \| good	0.121 \| good
2026-05-15T21:00:00.000Z	33 \| good	5.658 \| good	8.436 \| good	33.367 \| good	0.267 \| good	3.453 \| good	0.123 \| good
2026-05-15T22:00:00.000Z	33 \| good	6.136 \| good	8.835 \| good	32.117 \| good	0.273 \| good	3.712 \| good	0.123 \| good
2026-05-15T23:00:00.000Z	33 \| good	6.386 \| good	9.355 \| good	30.471 \| good	0.256 \| good	3.747 \| good	0.122 \| good
2026-05-16T00:00:00.000Z	38 \| good	6.785 \| good	9.646 \| good	28.353 \| good	0.211 \| good	3.821 \| good	0.123 \| good
2026-05-16T01:00:00.000Z	38 \| good	7.111 \| good	9.856 \| good	26.332 \| good	0.193 \| good	4.017 \| good	0.123 \| good
2026-05-16T02:00:00.000Z	44 \| good	7.787 \| good	9.905 \| good	24.574 \| good	0.181 \| good	4.11 \| good	0.125 \| good
2026-05-16T03:00:00.000Z	44 \| good	8.127 \| good	10.89 \| good	23.703 \| good	0.175 \| good	4.021 \| good	0.127 \| good
2026-05-16T04:00:00.000Z	49 \| good	8.574 \| good	11.641 \| good	23.817 \| good	0.214 \| good	4.379 \| good	0.128 \| good
2026-05-16T05:00:00.000Z	49 \| good	9.318 \| good	11.812 \| good	25.271 \| good	0.288 \| good	4.337 \| good	0.126 \| good
2026-05-16T06:00:00.000Z	52 \| moderate	10.368 \| good	13.248 \| good	26.174 \| good	0.349 \| good	4.345 \| good	0.134 \| good
2026-05-16T07:00:00.000Z	52 \| moderate	9.892 \| good	13.972 \| good	31.38 \| good	0.31 \| good	3.069 \| good	0.127 \| good
2026-05-16T08:00:00.000Z	33 \| good	6.467 \| good	10.889 \| good	34.949 \| good	0.227 \| good	2.059 \| good	0.12 \| good
2026-05-16T09:00:00.000Z	35 \| good	4.112 \| good	7.482 \| good	38.435 \| good	0.165 \| good	1.433 \| good	0.115 \| good
2026-05-16T10:00:00.000Z	41 \| good	3.3 \| good	6.287 \| good	43.552 \| good	0.119 \| good	1.08 \| good	0.113 \| good
2026-05-16T11:00:00.000Z	42 \| good	2.938 \| good	5.817 \| good	45.351 \| good	0.101 \| good	0.844 \| good	0.111 \| good
2026-05-16T12:00:00.000Z	43 \| good	2.797 \| good	5.646 \| good	45.542 \| good	0.082 \| good	0.776 \| good	0.11 \| good

Real-time air quality index in Royston, Hertfordshire today

Common air pollutants in Royston, Hertfordshire

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Royston, Hertfordshire air quality forecast and history

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

Baldock, Hertfordshire

Stotfold, Central Bedfordshire

Letchworth, Hertfordshire

Biggleswade, Central Bedfordshire

Saffron Walden, Essex

Cambourne, Cambridgeshire

How accurate is Hertfordshire, UK air quality data?

Air quality levels in UK

Frequently asked questions

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

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

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

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

Which pollutant is found most often in Royston, Hertfordshire?

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

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

What are the current PM10 levels at Royston, Hertfordshire?

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

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

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

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

What are the current PM₁₀ levels at Royston, Hertfordshire?

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

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

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