What are the current PM10 levels at Chorleywood, Hertfordshire?

The current PM10 levels in Chorleywood, Hertfordshire are 6.727 μg/m3.

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

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

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

The current ozone (O3) levels at Chorleywood, Hertfordshire is 28.2 ppm.

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

The current nitrogen dioxide (NO2) levels at Chorleywood, Hertfordshire is 5.465 ppb.

Real-time air quality index in Chorleywood, Hertfordshire today

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

The measured PM2.5 levels in Chorleywood, Hertfordshire at present are 3.469 μg/m3.

Stay updated with real-time air quality in Chorleywood, 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

Chorleywood, Hertfordshire

Last updated: ... (Local time)

Common air pollutants in Chorleywood, Hertfordshire

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

3.47 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

6.73 μg/m³

155

255

425

605+

Ozone (O₃)

28.20 ppb

201

201+

Sulfur Dioxide (SO₂)

0.89 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.46 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.11 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Chorleywood, Hertfordshire

Get Live Pollen Counts

Chorleywood, Hertfordshire

Scroll To Air Quality Map

Track live Chorleywood, Hertfordshire air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-05-12T13:00:00.000Z	27 \| good	5.015 \| good	14.659 \| good	27.759 \| good	0.802 \| good	8.006 \| good	0.12 \| good
2026-05-12T14:00:00.000Z	29 \| good	4.675 \| good	9.213 \| good	31.099 \| good	0.801 \| good	6.137 \| good	0.111 \| good
2026-05-12T15:00:00.000Z	34 \| good	4.493 \| good	11.591 \| good	36.853 \| good	0.534 \| good	6.496 \| good	0.113 \| good
2026-05-12T16:00:00.000Z	34 \| good	4.794 \| good	13.435 \| good	37.143 \| good	0.706 \| good	5.106 \| good	0.117 \| good
2026-05-12T17:00:00.000Z	37 \| good	4.742 \| good	14.162 \| good	39.899 \| good	0.707 \| good	6.998 \| good	0.661 \| good
2026-05-12T18:00:00.000Z	44 \| good	8.367 \| good	25.033 \| good	42.4 \| good	0.707 \| good	5.175 \| good	0.661 \| good
2026-05-12T19:00:00.000Z	42 \| good	6.768 \| good	27.244 \| good	44.533 \| good	0.587 \| good	4.939 \| good	0.163 \| good
2026-05-12T20:00:00.000Z	40 \| good	7.492 \| good	26.077 \| good	43.013 \| good	0.651 \| good	5.717 \| good	0.155 \| good
2026-05-12T21:00:00.000Z	37 \| good	4.435 \| good	25.849 \| good	39.612 \| good	0.705 \| good	8.708 \| good	0.153 \| good
2026-05-12T22:00:00.000Z	39 \| good	5.458 \| good	24.21 \| good	41.604 \| good	0.703 \| good	6.948 \| good	0.153 \| good
2026-05-12T23:00:00.000Z	38 \| good	5.611 \| good	12.644 \| good	40.853 \| good	0.649 \| good	7.129 \| good	0.661 \| good
2026-05-13T00:00:00.000Z	36 \| good	6.336 \| good	25.07 \| good	39.472 \| good	0.556 \| good	9.23 \| good	0.132 \| good
2026-05-13T01:00:00.000Z	34 \| good	6.063 \| good	24.705 \| good	36.727 \| good	0.493 \| good	4.958 \| good	0.661 \| good
2026-05-13T02:00:00.000Z	38 \| good	7.379 \| good	17.532 \| good	34.86 \| good	0.655 \| good	4.057 \| good	0.661 \| good
2026-05-13T03:00:00.000Z	44 \| good	8.032 \| good	23.379 \| good	34.792 \| good	0.763 \| good	2.702 \| good	0.661 \| good
2026-05-13T04:00:00.000Z	38 \| good	7.175 \| good	14.276 \| good	33.001 \| good	0.763 \| good	4.131 \| good	0.661 \| good
2026-05-13T05:00:00.000Z	38 \| good	7.04 \| good	26.118 \| good	34.07 \| good	0.693 \| good	2.074 \| good	0.661 \| good
2026-05-13T06:00:00.000Z	33 \| good	5.809 \| good	18.05 \| good	29.806 \| good	0.606 \| good	6.332 \| good	0.661 \| good
2026-05-13T07:00:00.000Z	33 \| good	5.564 \| good	21.146 \| good	29.273 \| good	0.85 \| good	5.869 \| good	0.144 \| good
2026-05-13T08:00:00.000Z	33 \| good	5.568 \| good	16.7 \| good	28.554 \| good	0.859 \| good	6.854 \| good	0.661 \| good
2026-05-13T09:00:00.000Z	33 \| good	5.94 \| good	27.474 \| good	29.874 \| good	0.76 \| good	7.928 \| good	0.661 \| good
2026-05-13T10:00:00.000Z	29 \| good	5.057 \| good	18.645 \| good	31.429 \| good	0.76 \| good	6.315 \| good	0.125 \| good
2026-05-13T11:00:00.000Z	29 \| good	5.094 \| good	26.987 \| good	31.432 \| good	0.803 \| good	4.582 \| good	0.122 \| good
2026-05-13T12:00:00.000Z	33 \| good	5.539 \| good	21.773 \| good	30.815 \| good	0.714 \| good	7.227 \| good	0.115 \| good
2026-05-13T13:00:00.000Z	30 \| good	5.057 \| good	20.92 \| good	32.249 \| good	0.87 \| good	7.254 \| good	0.117 \| good
2026-05-13T14:00:00.000Z	30 \| good	5.47 \| good	19.272 \| good	32.143 \| good	0.802 \| good	5.345 \| good	0.118 \| good
2026-05-13T15:00:00.000Z	33 \| good	6.426 \| good	18.974 \| good	33.792 \| good	0.803 \| good	5.62 \| good	0.113 \| good
2026-05-13T16:00:00.000Z	31 \| good	5.203 \| good	18.163 \| good	34.321 \| good	0.85 \| good	5.376 \| good	0.117 \| good
2026-05-13T17:00:00.000Z	32 \| good	4.961 \| good	12.756 \| good	34.864 \| good	0.8 \| good	6.606 \| good	0.122 \| good
2026-05-13T18:00:00.000Z	31 \| good	4.919 \| good	14.044 \| good	33.581 \| good	0.8 \| good	8.089 \| good	0.139 \| good
2026-05-13T19:00:00.000Z	31 \| good	4.613 \| good	14.801 \| good	33.767 \| good	0.761 \| good	4.413 \| good	0.197 \| good
2026-05-13T20:00:00.000Z	31 \| good	4.53 \| good	17.141 \| good	33.212 \| good	0.761 \| good	5.077 \| good	0.21 \| good
2026-05-13T21:00:00.000Z	30 \| good	4.373 \| good	14.199 \| good	32.447 \| good	0.761 \| good	7.002 \| good	0.2 \| good
2026-05-13T22:00:00.000Z	28 \| good	4.618 \| good	14.119 \| good	29.839 \| good	0.708 \| good	6.188 \| good	0.216 \| good
2026-05-13T23:00:00.000Z	27 \| good	5.12 \| good	12.715 \| good	28.854 \| good	0.859 \| good	6.965 \| good	0.224 \| good
2026-05-14T00:00:00.000Z	27 \| good	4.954 \| good	17.823 \| good	28.14 \| good	0.86 \| good	5.13 \| good	0.205 \| good
2026-05-14T01:00:00.000Z	27 \| good	4.917 \| good	10.737 \| good	27.429 \| good	0.713 \| good	5.494 \| good	0.167 \| good
2026-05-14T02:00:00.000Z	27 \| good	5.499 \| good	15.303 \| good	27.308 \| good	0.713 \| good	5.271 \| good	0.167 \| good
2026-05-14T03:00:00.000Z	33 \| good	5.543 \| good	16.127 \| good	24.822 \| good	0.665 \| good	4.118 \| good	0.15 \| good
2026-05-14T04:00:00.000Z	27 \| good	4.876 \| good	15.321 \| good	23.138 \| good	0.664 \| good	3.723 \| good	0.158 \| good
2026-05-14T05:00:00.000Z	27 \| good	4.783 \| good	17.609 \| good	23.285 \| good	0.761 \| good	3.736 \| good	0.172 \| good
2026-05-14T06:00:00.000Z	22 \| good	3.5 \| good	11.578 \| good	23.278 \| good	0.761 \| good	3.792 \| good	0.208 \| good
2026-05-14T07:00:00.000Z	22 \| good	3.846 \| good	10.523 \| good	24.437 \| good	0.713 \| good	6.178 \| good	0.177 \| good
2026-05-14T08:00:00.000Z	22 \| good	3.071 \| good	11.249 \| good	24.474 \| good	0.713 \| good	6.136 \| good	0.157 \| good
2026-05-14T09:00:00.000Z	23 \| good	3.076 \| good	12.325 \| good	24.724 \| good	0.802 \| good	5.12 \| good	0.13 \| good
2026-05-14T10:00:00.000Z	24 \| good	3 \| good	8.605 \| good	25.61 \| good	0.713 \| good	6.782 \| good	0.118 \| good
2026-05-14T11:00:00.000Z	25 \| good	3.264 \| good	10.616 \| good	26.992 \| good	0.851 \| good	6.023 \| good	0.118 \| good
2026-05-14T12:00:00.000Z	28 \| good	3.302 \| good	11.1 \| good	29.514 \| good	0.803 \| good	4.501 \| good	0.108 \| good
2026-05-14T12:00:00.000Z	26 \| good	3.469 \| good	6.727 \| good	28.2 \| good	0.893 \| good	5.465 \| good	0.108 \| good
2026-05-14T13:00:00.000Z	38 \| good	4.339 \| good	6.494 \| good	41.427 \| good	0.113 \| good	1.66 \| good	0.115 \| good
2026-05-14T14:00:00.000Z	39 \| good	4.199 \| good	6.318 \| good	42.294 \| good	0.107 \| good	1.664 \| good	0.115 \| good
2026-05-14T15:00:00.000Z	39 \| good	4.208 \| good	6.434 \| good	42.433 \| good	0.108 \| good	1.882 \| good	0.116 \| good
2026-05-14T16:00:00.000Z	40 \| good	4.577 \| good	6.669 \| good	42.859 \| good	0.117 \| good	2.125 \| good	0.118 \| good
2026-05-14T17:00:00.000Z	40 \| good	5.014 \| good	6.566 \| good	42.807 \| good	0.133 \| good	2.452 \| good	0.12 \| good
2026-05-14T18:00:00.000Z	38 \| good	5.281 \| good	6.728 \| good	40.914 \| good	0.154 \| good	3.178 \| good	0.122 \| good
2026-05-14T19:00:00.000Z	33 \| good	5.643 \| good	7.264 \| good	36.106 \| good	0.23 \| good	4.309 \| good	0.126 \| good
2026-05-14T20:00:00.000Z	31 \| good	5.221 \| good	6.303 \| good	33.751 \| good	0.268 \| good	5.12 \| good	0.129 \| good
2026-05-14T21:00:00.000Z	33 \| good	5.89 \| good	6.923 \| good	29.945 \| good	0.295 \| good	5.659 \| good	0.134 \| good
2026-05-14T22:00:00.000Z	38 \| good	6.679 \| good	7.889 \| good	29.257 \| good	0.278 \| good	5.765 \| good	0.135 \| good
2026-05-14T23:00:00.000Z	38 \| good	6.799 \| good	8.268 \| good	29.744 \| good	0.24 \| good	5.859 \| good	0.132 \| good
2026-05-15T00:00:00.000Z	38 \| good	7.032 \| good	8.922 \| good	29.332 \| good	0.242 \| good	5.61 \| good	0.128 \| good
2026-05-15T01:00:00.000Z	38 \| good	6.801 \| good	8.46 \| good	27.872 \| good	0.22 \| good	4.979 \| good	0.127 \| good
2026-05-15T02:00:00.000Z	44 \| good	7.679 \| good	9.306 \| good	26.359 \| good	0.225 \| good	4.581 \| good	0.128 \| good
2026-05-15T03:00:00.000Z	44 \| good	8.327 \| good	10.312 \| good	24.745 \| good	0.25 \| good	4.286 \| good	0.13 \| good
2026-05-15T04:00:00.000Z	49 \| good	8.532 \| good	11.143 \| good	25.293 \| good	0.284 \| good	3.678 \| good	0.127 \| good
2026-05-15T05:00:00.000Z	44 \| good	7.597 \| good	11.203 \| good	25.905 \| good	0.248 \| good	3.111 \| good	0.123 \| good
2026-05-15T06:00:00.000Z	38 \| good	6.624 \| good	11.887 \| good	25.047 \| good	0.252 \| good	3.252 \| good	0.12 \| good
2026-05-15T07:00:00.000Z	33 \| good	5.592 \| good	9.164 \| good	29.754 \| good	0.261 \| good	3.128 \| good	0.119 \| good
2026-05-15T08:00:00.000Z	32 \| good	3.492 \| good	7.151 \| good	34.642 \| good	0.2 \| good	2.468 \| good	0.118 \| good
2026-05-15T09:00:00.000Z	34 \| good	2.8 \| good	6.233 \| good	37.399 \| good	0.162 \| good	2.209 \| good	0.117 \| good
2026-05-15T10:00:00.000Z	36 \| good	3.063 \| good	6.031 \| good	38.579 \| good	0.147 \| good	1.811 \| good	0.117 \| good
2026-05-15T11:00:00.000Z	38 \| good	3.359 \| good	6.563 \| good	40.625 \| good	0.137 \| good	1.59 \| good	0.117 \| good
2026-05-15T12:00:00.000Z	41 \| good	3.227 \| good	6.702 \| good	43.512 \| good	0.129 \| good	1.475 \| good	0.117 \| good
2026-05-15T13:00:00.000Z	42 \| good	3.01 \| good	6.608 \| good	45.155 \| good	0.148 \| good	1.27 \| good	0.117 \| good
2026-05-15T14:00:00.000Z	44 \| good	2.891 \| good	5.808 \| good	47.097 \| good	0.146 \| good	1.147 \| good	0.115 \| good
2026-05-15T15:00:00.000Z	44 \| good	3.05 \| good	5.555 \| good	48.135 \| good	0.137 \| good	1.259 \| good	0.115 \| good
2026-05-15T16:00:00.000Z	44 \| good	3.384 \| good	6.096 \| good	48.414 \| good	0.13 \| good	1.405 \| good	0.115 \| good
2026-05-15T17:00:00.000Z	45 \| good	3.802 \| good	6.838 \| good	49.162 \| good	0.137 \| good	1.813 \| good	0.115 \| good
2026-05-15T18:00:00.000Z	44 \| good	4.095 \| good	7.54 \| good	48.14 \| good	0.168 \| good	2.127 \| good	0.118 \| good
2026-05-15T19:00:00.000Z	41 \| good	4.836 \| good	8.594 \| good	44.23 \| good	0.3 \| good	3.641 \| good	0.122 \| good
2026-05-15T20:00:00.000Z	36 \| good	5.864 \| good	9.271 \| good	39.416 \| good	0.391 \| good	4.962 \| good	0.126 \| good
2026-05-15T21:00:00.000Z	38 \| good	6.526 \| good	9.01 \| good	35.429 \| good	0.41 \| good	5.46 \| good	0.128 \| good
2026-05-15T22:00:00.000Z	38 \| good	7.241 \| good	9.002 \| good	31.56 \| good	0.373 \| good	5.222 \| good	0.131 \| good
2026-05-15T23:00:00.000Z	44 \| good	7.917 \| good	9.447 \| good	28.462 \| good	0.322 \| good	5.908 \| good	0.132 \| good
2026-05-16T00:00:00.000Z	44 \| good	8.205 \| good	10.133 \| good	26.055 \| good	0.338 \| good	6.51 \| good	0.133 \| good
2026-05-16T01:00:00.000Z	49 \| good	8.756 \| good	10.735 \| good	25.59 \| good	0.323 \| good	7.474 \| good	0.134 \| good
2026-05-16T02:00:00.000Z	49 \| good	9.173 \| good	11.205 \| good	25.109 \| good	0.309 \| good	8.134 \| good	0.136 \| good
2026-05-16T03:00:00.000Z	49 \| good	9.388 \| good	12.193 \| good	21.542 \| good	0.28 \| good	9.193 \| good	0.141 \| good
2026-05-16T04:00:00.000Z	52 \| moderate	9.861 \| good	12.398 \| good	17.763 \| good	0.244 \| good	9.69 \| good	0.145 \| good
2026-05-16T05:00:00.000Z	54 \| moderate	10.512 \| good	12.731 \| good	21.926 \| good	0.245 \| good	7.496 \| good	0.143 \| good
2026-05-16T06:00:00.000Z	52 \| moderate	9.833 \| good	12.253 \| good	28.667 \| good	0.256 \| good	4.656 \| good	0.132 \| good
2026-05-16T07:00:00.000Z	38 \| good	6.848 \| good	10.729 \| good	33.778 \| good	0.264 \| good	2.394 \| good	0.119 \| good
2026-05-16T08:00:00.000Z	35 \| good	3.975 \| good	7.434 \| good	38.361 \| good	0.171 \| good	1.572 \| good	0.115 \| good
2026-05-16T09:00:00.000Z	37 \| good	3.34 \| good	6.12 \| good	40.109 \| good	0.116 \| good	1.245 \| good	0.111 \| good
2026-05-16T10:00:00.000Z	41 \| good	2.802 \| good	5.82 \| good	44.083 \| good	0.097 \| good	0.912 \| good	0.11 \| good
2026-05-16T11:00:00.000Z	41 \| good	2.76 \| good	5.968 \| good	44.441 \| good	0.091 \| good	0.752 \| good	0.109 \| good
2026-05-16T12:00:00.000Z	41 \| good	2.816 \| good	6.244 \| good	44.198 \| good	0.081 \| good	0.746 \| good	0.109 \| good

Chorleywood

Empower business decisions with accurate air quality data

Chorleywood, 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 Chorleywood, Hertfordshire updated?

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

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

The worst air quality in Chorleywood, Hertfordshire was recorded at 03:00:00 on 2026-05-14.

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

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

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

The real-time air quality index in Chorleywood, Hertfordshire is 26, currently categorized as Good.

Which pollutant is found most often in Chorleywood, Hertfordshire?

The most common pollutant in Chorleywood, Hertfordshire is O3.

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

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

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

The measured PM_2.5 levels in Chorleywood, Hertfordshire at present are 3.469 μg/m³.

What are the current PM₁₀ levels at Chorleywood, Hertfordshire?

The current PM₁₀ levels in Chorleywood, Hertfordshire are 6.727 μg/m³.

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

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

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

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

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

The current ozone (O₃) levels at Chorleywood, Hertfordshire is 28.2 ppm.

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

The current nitrogen dioxide (NO₂) levels at Chorleywood, Hertfordshire is 5.465 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-05-12T13:00:00.000Z	27 \| good	5.015 \| good	14.659 \| good	27.759 \| good	0.802 \| good	8.006 \| good	0.12 \| good
2026-05-12T14:00:00.000Z	29 \| good	4.675 \| good	9.213 \| good	31.099 \| good	0.801 \| good	6.137 \| good	0.111 \| good
2026-05-12T15:00:00.000Z	34 \| good	4.493 \| good	11.591 \| good	36.853 \| good	0.534 \| good	6.496 \| good	0.113 \| good
2026-05-12T16:00:00.000Z	34 \| good	4.794 \| good	13.435 \| good	37.143 \| good	0.706 \| good	5.106 \| good	0.117 \| good
2026-05-12T17:00:00.000Z	37 \| good	4.742 \| good	14.162 \| good	39.899 \| good	0.707 \| good	6.998 \| good	0.661 \| good
2026-05-12T18:00:00.000Z	44 \| good	8.367 \| good	25.033 \| good	42.4 \| good	0.707 \| good	5.175 \| good	0.661 \| good
2026-05-12T19:00:00.000Z	42 \| good	6.768 \| good	27.244 \| good	44.533 \| good	0.587 \| good	4.939 \| good	0.163 \| good
2026-05-12T20:00:00.000Z	40 \| good	7.492 \| good	26.077 \| good	43.013 \| good	0.651 \| good	5.717 \| good	0.155 \| good
2026-05-12T21:00:00.000Z	37 \| good	4.435 \| good	25.849 \| good	39.612 \| good	0.705 \| good	8.708 \| good	0.153 \| good
2026-05-12T22:00:00.000Z	39 \| good	5.458 \| good	24.21 \| good	41.604 \| good	0.703 \| good	6.948 \| good	0.153 \| good
2026-05-12T23:00:00.000Z	38 \| good	5.611 \| good	12.644 \| good	40.853 \| good	0.649 \| good	7.129 \| good	0.661 \| good
2026-05-13T00:00:00.000Z	36 \| good	6.336 \| good	25.07 \| good	39.472 \| good	0.556 \| good	9.23 \| good	0.132 \| good
2026-05-13T01:00:00.000Z	34 \| good	6.063 \| good	24.705 \| good	36.727 \| good	0.493 \| good	4.958 \| good	0.661 \| good
2026-05-13T02:00:00.000Z	38 \| good	7.379 \| good	17.532 \| good	34.86 \| good	0.655 \| good	4.057 \| good	0.661 \| good
2026-05-13T03:00:00.000Z	44 \| good	8.032 \| good	23.379 \| good	34.792 \| good	0.763 \| good	2.702 \| good	0.661 \| good
2026-05-13T04:00:00.000Z	38 \| good	7.175 \| good	14.276 \| good	33.001 \| good	0.763 \| good	4.131 \| good	0.661 \| good
2026-05-13T05:00:00.000Z	38 \| good	7.04 \| good	26.118 \| good	34.07 \| good	0.693 \| good	2.074 \| good	0.661 \| good
2026-05-13T06:00:00.000Z	33 \| good	5.809 \| good	18.05 \| good	29.806 \| good	0.606 \| good	6.332 \| good	0.661 \| good
2026-05-13T07:00:00.000Z	33 \| good	5.564 \| good	21.146 \| good	29.273 \| good	0.85 \| good	5.869 \| good	0.144 \| good
2026-05-13T08:00:00.000Z	33 \| good	5.568 \| good	16.7 \| good	28.554 \| good	0.859 \| good	6.854 \| good	0.661 \| good
2026-05-13T09:00:00.000Z	33 \| good	5.94 \| good	27.474 \| good	29.874 \| good	0.76 \| good	7.928 \| good	0.661 \| good
2026-05-13T10:00:00.000Z	29 \| good	5.057 \| good	18.645 \| good	31.429 \| good	0.76 \| good	6.315 \| good	0.125 \| good
2026-05-13T11:00:00.000Z	29 \| good	5.094 \| good	26.987 \| good	31.432 \| good	0.803 \| good	4.582 \| good	0.122 \| good
2026-05-13T12:00:00.000Z	33 \| good	5.539 \| good	21.773 \| good	30.815 \| good	0.714 \| good	7.227 \| good	0.115 \| good
2026-05-13T13:00:00.000Z	30 \| good	5.057 \| good	20.92 \| good	32.249 \| good	0.87 \| good	7.254 \| good	0.117 \| good
2026-05-13T14:00:00.000Z	30 \| good	5.47 \| good	19.272 \| good	32.143 \| good	0.802 \| good	5.345 \| good	0.118 \| good
2026-05-13T15:00:00.000Z	33 \| good	6.426 \| good	18.974 \| good	33.792 \| good	0.803 \| good	5.62 \| good	0.113 \| good
2026-05-13T16:00:00.000Z	31 \| good	5.203 \| good	18.163 \| good	34.321 \| good	0.85 \| good	5.376 \| good	0.117 \| good
2026-05-13T17:00:00.000Z	32 \| good	4.961 \| good	12.756 \| good	34.864 \| good	0.8 \| good	6.606 \| good	0.122 \| good
2026-05-13T18:00:00.000Z	31 \| good	4.919 \| good	14.044 \| good	33.581 \| good	0.8 \| good	8.089 \| good	0.139 \| good
2026-05-13T19:00:00.000Z	31 \| good	4.613 \| good	14.801 \| good	33.767 \| good	0.761 \| good	4.413 \| good	0.197 \| good
2026-05-13T20:00:00.000Z	31 \| good	4.53 \| good	17.141 \| good	33.212 \| good	0.761 \| good	5.077 \| good	0.21 \| good
2026-05-13T21:00:00.000Z	30 \| good	4.373 \| good	14.199 \| good	32.447 \| good	0.761 \| good	7.002 \| good	0.2 \| good
2026-05-13T22:00:00.000Z	28 \| good	4.618 \| good	14.119 \| good	29.839 \| good	0.708 \| good	6.188 \| good	0.216 \| good
2026-05-13T23:00:00.000Z	27 \| good	5.12 \| good	12.715 \| good	28.854 \| good	0.859 \| good	6.965 \| good	0.224 \| good
2026-05-14T00:00:00.000Z	27 \| good	4.954 \| good	17.823 \| good	28.14 \| good	0.86 \| good	5.13 \| good	0.205 \| good
2026-05-14T01:00:00.000Z	27 \| good	4.917 \| good	10.737 \| good	27.429 \| good	0.713 \| good	5.494 \| good	0.167 \| good
2026-05-14T02:00:00.000Z	27 \| good	5.499 \| good	15.303 \| good	27.308 \| good	0.713 \| good	5.271 \| good	0.167 \| good
2026-05-14T03:00:00.000Z	33 \| good	5.543 \| good	16.127 \| good	24.822 \| good	0.665 \| good	4.118 \| good	0.15 \| good
2026-05-14T04:00:00.000Z	27 \| good	4.876 \| good	15.321 \| good	23.138 \| good	0.664 \| good	3.723 \| good	0.158 \| good
2026-05-14T05:00:00.000Z	27 \| good	4.783 \| good	17.609 \| good	23.285 \| good	0.761 \| good	3.736 \| good	0.172 \| good
2026-05-14T06:00:00.000Z	22 \| good	3.5 \| good	11.578 \| good	23.278 \| good	0.761 \| good	3.792 \| good	0.208 \| good
2026-05-14T07:00:00.000Z	22 \| good	3.846 \| good	10.523 \| good	24.437 \| good	0.713 \| good	6.178 \| good	0.177 \| good
2026-05-14T08:00:00.000Z	22 \| good	3.071 \| good	11.249 \| good	24.474 \| good	0.713 \| good	6.136 \| good	0.157 \| good
2026-05-14T09:00:00.000Z	23 \| good	3.076 \| good	12.325 \| good	24.724 \| good	0.802 \| good	5.12 \| good	0.13 \| good
2026-05-14T10:00:00.000Z	24 \| good	3 \| good	8.605 \| good	25.61 \| good	0.713 \| good	6.782 \| good	0.118 \| good
2026-05-14T11:00:00.000Z	25 \| good	3.264 \| good	10.616 \| good	26.992 \| good	0.851 \| good	6.023 \| good	0.118 \| good
2026-05-14T12:00:00.000Z	28 \| good	3.302 \| good	11.1 \| good	29.514 \| good	0.803 \| good	4.501 \| good	0.108 \| good
2026-05-14T12:00:00.000Z	26 \| good	3.469 \| good	6.727 \| good	28.2 \| good	0.893 \| good	5.465 \| good	0.108 \| good
2026-05-14T13:00:00.000Z	38 \| good	4.339 \| good	6.494 \| good	41.427 \| good	0.113 \| good	1.66 \| good	0.115 \| good
2026-05-14T14:00:00.000Z	39 \| good	4.199 \| good	6.318 \| good	42.294 \| good	0.107 \| good	1.664 \| good	0.115 \| good
2026-05-14T15:00:00.000Z	39 \| good	4.208 \| good	6.434 \| good	42.433 \| good	0.108 \| good	1.882 \| good	0.116 \| good
2026-05-14T16:00:00.000Z	40 \| good	4.577 \| good	6.669 \| good	42.859 \| good	0.117 \| good	2.125 \| good	0.118 \| good
2026-05-14T17:00:00.000Z	40 \| good	5.014 \| good	6.566 \| good	42.807 \| good	0.133 \| good	2.452 \| good	0.12 \| good
2026-05-14T18:00:00.000Z	38 \| good	5.281 \| good	6.728 \| good	40.914 \| good	0.154 \| good	3.178 \| good	0.122 \| good
2026-05-14T19:00:00.000Z	33 \| good	5.643 \| good	7.264 \| good	36.106 \| good	0.23 \| good	4.309 \| good	0.126 \| good
2026-05-14T20:00:00.000Z	31 \| good	5.221 \| good	6.303 \| good	33.751 \| good	0.268 \| good	5.12 \| good	0.129 \| good
2026-05-14T21:00:00.000Z	33 \| good	5.89 \| good	6.923 \| good	29.945 \| good	0.295 \| good	5.659 \| good	0.134 \| good
2026-05-14T22:00:00.000Z	38 \| good	6.679 \| good	7.889 \| good	29.257 \| good	0.278 \| good	5.765 \| good	0.135 \| good
2026-05-14T23:00:00.000Z	38 \| good	6.799 \| good	8.268 \| good	29.744 \| good	0.24 \| good	5.859 \| good	0.132 \| good
2026-05-15T00:00:00.000Z	38 \| good	7.032 \| good	8.922 \| good	29.332 \| good	0.242 \| good	5.61 \| good	0.128 \| good
2026-05-15T01:00:00.000Z	38 \| good	6.801 \| good	8.46 \| good	27.872 \| good	0.22 \| good	4.979 \| good	0.127 \| good
2026-05-15T02:00:00.000Z	44 \| good	7.679 \| good	9.306 \| good	26.359 \| good	0.225 \| good	4.581 \| good	0.128 \| good
2026-05-15T03:00:00.000Z	44 \| good	8.327 \| good	10.312 \| good	24.745 \| good	0.25 \| good	4.286 \| good	0.13 \| good
2026-05-15T04:00:00.000Z	49 \| good	8.532 \| good	11.143 \| good	25.293 \| good	0.284 \| good	3.678 \| good	0.127 \| good
2026-05-15T05:00:00.000Z	44 \| good	7.597 \| good	11.203 \| good	25.905 \| good	0.248 \| good	3.111 \| good	0.123 \| good
2026-05-15T06:00:00.000Z	38 \| good	6.624 \| good	11.887 \| good	25.047 \| good	0.252 \| good	3.252 \| good	0.12 \| good
2026-05-15T07:00:00.000Z	33 \| good	5.592 \| good	9.164 \| good	29.754 \| good	0.261 \| good	3.128 \| good	0.119 \| good
2026-05-15T08:00:00.000Z	32 \| good	3.492 \| good	7.151 \| good	34.642 \| good	0.2 \| good	2.468 \| good	0.118 \| good
2026-05-15T09:00:00.000Z	34 \| good	2.8 \| good	6.233 \| good	37.399 \| good	0.162 \| good	2.209 \| good	0.117 \| good
2026-05-15T10:00:00.000Z	36 \| good	3.063 \| good	6.031 \| good	38.579 \| good	0.147 \| good	1.811 \| good	0.117 \| good
2026-05-15T11:00:00.000Z	38 \| good	3.359 \| good	6.563 \| good	40.625 \| good	0.137 \| good	1.59 \| good	0.117 \| good
2026-05-15T12:00:00.000Z	41 \| good	3.227 \| good	6.702 \| good	43.512 \| good	0.129 \| good	1.475 \| good	0.117 \| good
2026-05-15T13:00:00.000Z	42 \| good	3.01 \| good	6.608 \| good	45.155 \| good	0.148 \| good	1.27 \| good	0.117 \| good
2026-05-15T14:00:00.000Z	44 \| good	2.891 \| good	5.808 \| good	47.097 \| good	0.146 \| good	1.147 \| good	0.115 \| good
2026-05-15T15:00:00.000Z	44 \| good	3.05 \| good	5.555 \| good	48.135 \| good	0.137 \| good	1.259 \| good	0.115 \| good
2026-05-15T16:00:00.000Z	44 \| good	3.384 \| good	6.096 \| good	48.414 \| good	0.13 \| good	1.405 \| good	0.115 \| good
2026-05-15T17:00:00.000Z	45 \| good	3.802 \| good	6.838 \| good	49.162 \| good	0.137 \| good	1.813 \| good	0.115 \| good
2026-05-15T18:00:00.000Z	44 \| good	4.095 \| good	7.54 \| good	48.14 \| good	0.168 \| good	2.127 \| good	0.118 \| good
2026-05-15T19:00:00.000Z	41 \| good	4.836 \| good	8.594 \| good	44.23 \| good	0.3 \| good	3.641 \| good	0.122 \| good
2026-05-15T20:00:00.000Z	36 \| good	5.864 \| good	9.271 \| good	39.416 \| good	0.391 \| good	4.962 \| good	0.126 \| good
2026-05-15T21:00:00.000Z	38 \| good	6.526 \| good	9.01 \| good	35.429 \| good	0.41 \| good	5.46 \| good	0.128 \| good
2026-05-15T22:00:00.000Z	38 \| good	7.241 \| good	9.002 \| good	31.56 \| good	0.373 \| good	5.222 \| good	0.131 \| good
2026-05-15T23:00:00.000Z	44 \| good	7.917 \| good	9.447 \| good	28.462 \| good	0.322 \| good	5.908 \| good	0.132 \| good
2026-05-16T00:00:00.000Z	44 \| good	8.205 \| good	10.133 \| good	26.055 \| good	0.338 \| good	6.51 \| good	0.133 \| good
2026-05-16T01:00:00.000Z	49 \| good	8.756 \| good	10.735 \| good	25.59 \| good	0.323 \| good	7.474 \| good	0.134 \| good
2026-05-16T02:00:00.000Z	49 \| good	9.173 \| good	11.205 \| good	25.109 \| good	0.309 \| good	8.134 \| good	0.136 \| good
2026-05-16T03:00:00.000Z	49 \| good	9.388 \| good	12.193 \| good	21.542 \| good	0.28 \| good	9.193 \| good	0.141 \| good
2026-05-16T04:00:00.000Z	52 \| moderate	9.861 \| good	12.398 \| good	17.763 \| good	0.244 \| good	9.69 \| good	0.145 \| good
2026-05-16T05:00:00.000Z	54 \| moderate	10.512 \| good	12.731 \| good	21.926 \| good	0.245 \| good	7.496 \| good	0.143 \| good
2026-05-16T06:00:00.000Z	52 \| moderate	9.833 \| good	12.253 \| good	28.667 \| good	0.256 \| good	4.656 \| good	0.132 \| good
2026-05-16T07:00:00.000Z	38 \| good	6.848 \| good	10.729 \| good	33.778 \| good	0.264 \| good	2.394 \| good	0.119 \| good
2026-05-16T08:00:00.000Z	35 \| good	3.975 \| good	7.434 \| good	38.361 \| good	0.171 \| good	1.572 \| good	0.115 \| good
2026-05-16T09:00:00.000Z	37 \| good	3.34 \| good	6.12 \| good	40.109 \| good	0.116 \| good	1.245 \| good	0.111 \| good
2026-05-16T10:00:00.000Z	41 \| good	2.802 \| good	5.82 \| good	44.083 \| good	0.097 \| good	0.912 \| good	0.11 \| good
2026-05-16T11:00:00.000Z	41 \| good	2.76 \| good	5.968 \| good	44.441 \| good	0.091 \| good	0.752 \| good	0.109 \| good
2026-05-16T12:00:00.000Z	41 \| good	2.816 \| good	6.244 \| good	44.198 \| good	0.081 \| good	0.746 \| good	0.109 \| good

Real-time air quality index in Chorleywood, Hertfordshire today

Common air pollutants in Chorleywood, Hertfordshire

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Chorleywood, Hertfordshire air quality forecast and history

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

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How accurate is Hertfordshire, UK air quality data?

Air quality levels in UK

Frequently asked questions

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

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

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

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

Which pollutant is found most often in Chorleywood, Hertfordshire?

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

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

What are the current PM10 levels at Chorleywood, Hertfordshire?

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

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

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

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

What are the current PM₁₀ levels at Chorleywood, Hertfordshire?

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

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

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