What are the current PM10 levels at Horley, Surrey?

The current PM10 levels in Horley, Surrey are 22 μg/m3.

What are the current sulfur dioxide (SO2) levels at Horley, Surrey?

The current sulfur dioxide (SO2) levels in Horley, Surrey are 0.573 ppb.

What are the current ozone (O3) levels at Horley, Surrey?

The current ozone (O3) levels at Horley, Surrey is 53.5 ppm.

What are the current nitrogen dioxide (NO2) levels at Horley, Surrey?

The current nitrogen dioxide (NO2) levels at Horley, Surrey is 23.83 ppb.

Real-time air quality index in Horley, Surrey today

Q: What are the current PM2.5 levels in Horley, Surrey?

The measured PM2.5 levels in Horley, Surrey at present are 9 μg/m3.

Stay updated with real-time air quality in Horley, Surrey 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

Horley, Surrey

Last updated: ... (Local time)

Common air pollutants in Horley, Surrey

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

9.00 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

22.00 μg/m³

155

255

425

605+

Ozone (O₃)

53.50 ppb

201

201+

Sulfur Dioxide (SO₂)

0.57 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

23.83 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.01 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Horley, Surrey

Get Live Pollen Counts

Horley, Surrey

Scroll To Air Quality Map

Track live Horley, Surrey air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-12T18:00:00.000Z	46 \| good	5 \| good	15 \| good	50.137 \| good	0.841 \| good	3.67 \| good	0.014 \| good
2026-08-12T19:00:00.000Z	49 \| good	5 \| good	15 \| good	52.818 \| good	0.787 \| good	3.67 \| good	0.015 \| good
2026-08-12T20:00:00.000Z	41 \| good	5 \| good	15 \| good	44.387 \| good	0.57 \| good	3.67 \| good	0.014 \| good
2026-08-12T21:00:00.000Z	41 \| good	5 \| good	14 \| good	44.242 \| good	0.821 \| good	3.67 \| good	0.012 \| good
2026-08-12T22:00:00.000Z	58 \| moderate	5 \| good	14 \| good	56.73 \| fine	0.953 \| good	3.67 \| good	0.012 \| good
2026-08-12T23:00:00.000Z	46 \| good	5 \| good	15 \| good	50.198 \| good	0.982 \| good	3.67 \| good	0.012 \| good
2026-08-13T00:00:00.000Z	61 \| moderate	5 \| good	15 \| good	57.735 \| fine	1.12 \| good	11.17 \| good	0.165 \| good
2026-08-13T01:00:00.000Z	45 \| good	5 \| good	16 \| good	49.422 \| good	0.795 \| good	10.106 \| good	0.153 \| good
2026-08-13T02:00:00.000Z	37 \| good	5 \| good	16 \| good	40.158 \| good	0.711 \| good	9.043 \| good	0.158 \| good
2026-08-13T03:00:00.000Z	36 \| good	5 \| good	16 \| good	39.089 \| good	0.716 \| good	7.979 \| good	0.158 \| good
2026-08-13T04:00:00.000Z	33 \| good	6 \| good	16 \| good	35.077 \| good	0.791 \| good	9.043 \| good	0.165 \| good
2026-08-13T05:00:00.000Z	33 \| good	6 \| good	16 \| good	28.234 \| good	0.593 \| good	9.894 \| good	0.012 \| good
2026-08-13T06:00:00.000Z	37 \| good	6 \| good	17 \| good	39.513 \| good	0.716 \| good	9.894 \| good	0.013 \| good
2026-08-13T07:00:00.000Z	33 \| good	6 \| good	17 \| good	36.305 \| good	0.687 \| good	9.894 \| good	0.012 \| good
2026-08-13T08:00:00.000Z	33 \| good	6 \| good	17 \| good	34.379 \| good	0.606 \| good	9.894 \| good	0.012 \| good
2026-08-13T09:00:00.000Z	38 \| good	6 \| good	18 \| good	40.921 \| good	0.745 \| good	9.894 \| good	0.013 \| good
2026-08-13T10:00:00.000Z	33 \| good	6 \| good	18 \| good	25.013 \| good	5.068 \| good	9.894 \| good	0.013 \| good
2026-08-13T11:00:00.000Z	34 \| good	6 \| good	18 \| good	37.214 \| good	1.015 \| good	9.894 \| good	0.013 \| good
2026-08-13T12:00:00.000Z	36 \| good	6 \| good	18 \| good	39.308 \| good	1.108 \| good	9.894 \| good	0.013 \| good
2026-08-13T13:00:00.000Z	33 \| good	6 \| good	18 \| good	30.963 \| good	0.819 \| good	9.894 \| good	0.014 \| good
2026-08-13T14:00:00.000Z	48 \| good	6 \| good	19 \| good	52.283 \| good	1.032 \| good	9.894 \| good	0.012 \| good
2026-08-13T15:00:00.000Z	67 \| moderate	6 \| good	19 \| good	59.889 \| fine	0.739 \| good	9.894 \| good	0.014 \| good
2026-08-13T16:00:00.000Z	77 \| moderate	6 \| good	19 \| good	63.131 \| fine	0.739 \| good	9.894 \| good	0.013 \| good
2026-08-13T17:00:00.000Z	87 \| moderate	6 \| good	19 \| good	66.355 \| fine	0.968 \| good	9.894 \| good	0.012 \| good
2026-08-13T18:00:00.000Z	47 \| good	6 \| good	19 \| good	51.022 \| good	0.924 \| good	9.894 \| good	0.018 \| good
2026-08-13T19:00:00.000Z	50 \| good	6 \| good	20 \| good	53.831 \| good	0.774 \| good	9.894 \| good	0.016 \| good
2026-08-13T20:00:00.000Z	93 \| moderate	6 \| good	20 \| good	68.006 \| fine	0.848 \| good	9.894 \| good	0.017 \| good
2026-08-13T21:00:00.000Z	43 \| good	6 \| good	20 \| good	45.827 \| good	0.665 \| good	9.894 \| good	0.019 \| good
2026-08-13T22:00:00.000Z	90 \| moderate	6 \| good	20 \| good	67.2 \| fine	0.814 \| good	9.894 \| good	0.014 \| good
2026-08-13T23:00:00.000Z	67 \| moderate	6 \| good	20 \| good	60.178 \| fine	0.74 \| good	9.894 \| good	0.01 \| good
2026-08-14T00:00:00.000Z	54 \| moderate	6 \| good	19 \| good	56.386 \| fine	0.875 \| good	40.957 \| good	0.151 \| good
2026-08-14T01:00:00.000Z	45 \| good	6 \| good	19 \| good	49.429 \| good	0.75 \| good	23.936 \| good	0.139 \| good
2026-08-14T02:00:00.000Z	67 \| moderate	6 \| good	19 \| good	59.803 \| fine	0.892 \| good	21.277 \| good	0.142 \| good
2026-08-14T03:00:00.000Z	47 \| good	6 \| good	20 \| good	51.016 \| good	0.915 \| good	18.617 \| good	0.148 \| good
2026-08-14T04:00:00.000Z	49 \| good	6 \| good	20 \| good	52.782 \| good	0.911 \| good	12.234 \| good	0.148 \| good
2026-08-14T05:00:00.000Z	44 \| good	6 \| good	20 \| good	47.15 \| good	0.759 \| good	23.83 \| good	0.012 \| good
2026-08-14T06:00:00.000Z	39 \| good	6 \| good	20 \| good	41.678 \| good	0.804 \| good	23.83 \| good	0.012 \| good
2026-08-14T07:00:00.000Z	34 \| good	6 \| good	20 \| good	36.648 \| good	0.756 \| good	23.83 \| good	0.012 \| good
2026-08-14T08:00:00.000Z	44 \| good	6 \| good	20 \| good	48.314 \| good	0.717 \| good	23.83 \| good	0.012 \| good
2026-08-14T09:00:00.000Z	42 \| good	7 \| good	21 \| good	44.675 \| good	0.649 \| good	23.83 \| good	0.012 \| good
2026-08-14T10:00:00.000Z	48 \| good	7 \| good	21 \| good	51.828 \| good	0.762 \| good	23.83 \| good	0.013 \| good
2026-08-14T11:00:00.000Z	45 \| good	7 \| good	21 \| good	48.606 \| good	0.672 \| good	23.83 \| good	0.013 \| good
2026-08-14T12:00:00.000Z	39 \| good	7 \| good	21 \| good	41.611 \| good	0.779 \| good	23.83 \| good	0.014 \| good
2026-08-14T13:00:00.000Z	64 \| moderate	8 \| good	21 \| good	58.602 \| fine	0.611 \| good	23.83 \| good	0.014 \| good
2026-08-14T14:00:00.000Z	44 \| good	8 \| good	21 \| good	46.96 \| good	0.649 \| good	23.83 \| good	0.015 \| good
2026-08-14T15:00:00.000Z	49 \| good	8 \| good	22 \| good	52.795 \| good	0.649 \| good	23.83 \| good	0.014 \| good
2026-08-14T16:00:00.000Z	48 \| good	8 \| good	22 \| good	51.744 \| good	0.649 \| good	23.83 \| good	0.013 \| good
2026-08-14T17:00:00.000Z	50 \| good	9 \| good	22 \| good	53.5 \| good	0.573 \| good	23.83 \| good	0.013 \| good
2026-08-14T17:00:00.000Z	50 \| good	9 \| good	22 \| good	53.5 \| good	0.573 \| good	23.83 \| good	0.013 \| good
2026-08-14T16:00:00.000Z	44 \| good	4.835 \| good	6.768 \| good	48.358 \| good	0.125 \| good	1.956 \| good	0.112 \| good
2026-08-14T17:00:00.000Z	44 \| good	4.772 \| good	6.725 \| good	47.207 \| good	0.141 \| good	2.28 \| good	0.119 \| good
2026-08-14T18:00:00.000Z	43 \| good	5.532 \| good	7.699 \| good	46.024 \| good	0.162 \| good	3.613 \| good	0.126 \| good
2026-08-14T19:00:00.000Z	39 \| good	5.266 \| good	8.28 \| good	42.046 \| good	0.2 \| good	5.849 \| good	0.138 \| good
2026-08-14T20:00:00.000Z	34 \| good	5.332 \| good	9.556 \| good	37.321 \| good	0.233 \| good	7.597 \| good	0.148 \| good
2026-08-14T21:00:00.000Z	38 \| good	7.389 \| good	11.498 \| good	33.826 \| good	0.264 \| good	9.948 \| good	0.167 \| good
2026-08-14T22:00:00.000Z	49 \| good	8.802 \| good	14.229 \| good	29.361 \| good	0.278 \| good	8.791 \| good	0.183 \| good
2026-08-14T23:00:00.000Z	49 \| good	9.084 \| good	15.101 \| good	29.875 \| good	0.305 \| good	7.589 \| good	0.175 \| good
2026-08-15T00:00:00.000Z	44 \| good	8.427 \| good	14.21 \| good	25.926 \| good	0.297 \| good	7.716 \| good	0.154 \| good
2026-08-15T01:00:00.000Z	44 \| good	7.956 \| good	10.168 \| good	27.589 \| good	0.28 \| good	6.359 \| good	0.136 \| good
2026-08-15T02:00:00.000Z	33 \| good	5.917 \| good	7.685 \| good	26.867 \| good	0.256 \| good	5.493 \| good	0.128 \| good
2026-08-15T03:00:00.000Z	33 \| good	5.733 \| good	6.496 \| good	23.788 \| good	0.328 \| good	5.068 \| good	0.123 \| good
2026-08-15T04:00:00.000Z	27 \| good	5.441 \| good	6.274 \| good	22.636 \| good	0.319 \| good	4.543 \| good	0.122 \| good
2026-08-15T05:00:00.000Z	27 \| good	4.681 \| good	6.037 \| good	21.969 \| good	0.234 \| good	4.745 \| good	0.123 \| good
2026-08-15T06:00:00.000Z	22 \| good	3.811 \| good	5.381 \| good	21.626 \| good	0.194 \| good	4.331 \| good	0.122 \| good
2026-08-15T07:00:00.000Z	22 \| good	4.031 \| good	5.873 \| good	22.07 \| good	0.207 \| good	3.935 \| good	0.126 \| good
2026-08-15T08:00:00.000Z	22 \| good	4.325 \| good	6.551 \| good	22.569 \| good	0.235 \| good	3.735 \| good	0.129 \| good
2026-08-15T09:00:00.000Z	25 \| good	4.296 \| good	6.512 \| good	26.89 \| good	0.236 \| good	3.221 \| good	0.128 \| good
2026-08-15T10:00:00.000Z	28 \| good	4.291 \| good	7.255 \| good	30.277 \| good	0.205 \| good	2.689 \| good	0.125 \| good
2026-08-15T11:00:00.000Z	31 \| good	4.767 \| good	7.477 \| good	33.295 \| good	0.169 \| good	2.532 \| good	0.122 \| good
2026-08-15T12:00:00.000Z	33 \| good	4.739 \| good	7.557 \| good	36.329 \| good	0.154 \| good	2.588 \| good	0.123 \| good
2026-08-15T13:00:00.000Z	35 \| good	5.11 \| good	7.266 \| good	38.024 \| good	0.143 \| good	2.376 \| good	0.123 \| good
2026-08-15T14:00:00.000Z	36 \| good	5.056 \| good	6.604 \| good	39.4 \| good	0.134 \| good	2.506 \| good	0.123 \| good
2026-08-15T15:00:00.000Z	39 \| good	4.661 \| good	6.213 \| good	41.834 \| good	0.134 \| good	2.258 \| good	0.124 \| good
2026-08-15T16:00:00.000Z	39 \| good	4.631 \| good	6.249 \| good	41.965 \| good	0.134 \| good	2.1 \| good	0.124 \| good
2026-08-15T17:00:00.000Z	38 \| good	4.201 \| good	6.611 \| good	40.56 \| good	0.17 \| good	2.547 \| good	0.125 \| good
2026-08-15T18:00:00.000Z	36 \| good	4.223 \| good	6.735 \| good	38.552 \| good	0.21 \| good	3.484 \| good	0.127 \| good
2026-08-15T19:00:00.000Z	31 \| good	4.673 \| good	7.178 \| good	33.433 \| good	0.227 \| good	4.612 \| good	0.131 \| good
2026-08-15T20:00:00.000Z	28 \| good	4.472 \| good	7.708 \| good	29.897 \| good	0.206 \| good	5.814 \| good	0.131 \| good
2026-08-15T21:00:00.000Z	25 \| good	4.282 \| good	6.677 \| good	26.714 \| good	0.184 \| good	6.444 \| good	0.128 \| good
2026-08-15T22:00:00.000Z	22 \| good	4.213 \| good	6.204 \| good	23.574 \| good	0.179 \| good	7.097 \| good	0.126 \| good
2026-08-15T23:00:00.000Z	22 \| good	4.214 \| good	5.944 \| good	22.954 \| good	0.146 \| good	6.158 \| good	0.126 \| good
2026-08-16T00:00:00.000Z	22 \| good	4.31 \| good	5.893 \| good	21.84 \| good	0.133 \| good	6.094 \| good	0.123 \| good
2026-08-16T01:00:00.000Z	22 \| good	4.292 \| good	6.78 \| good	22.125 \| good	0.125 \| good	4.439 \| good	0.116 \| good
2026-08-16T02:00:00.000Z	22 \| good	4.422 \| good	7.433 \| good	19.386 \| good	0.117 \| good	4.133 \| good	0.114 \| good
2026-08-16T03:00:00.000Z	27 \| good	5.374 \| good	8.042 \| good	18.167 \| good	0.129 \| good	4.334 \| good	0.114 \| good
2026-08-16T04:00:00.000Z	33 \| good	6.266 \| good	8.794 \| good	17.418 \| good	0.134 \| good	4.814 \| good	0.115 \| good
2026-08-16T05:00:00.000Z	33 \| good	6.358 \| good	9.583 \| good	15.946 \| good	0.168 \| good	6.46 \| good	0.119 \| good
2026-08-16T06:00:00.000Z	38 \| good	6.92 \| good	9.889 \| good	13.871 \| good	0.221 \| good	9.068 \| good	0.135 \| good
2026-08-16T07:00:00.000Z	38 \| good	6.96 \| good	9.872 \| good	13.689 \| good	0.244 \| good	8.212 \| good	0.137 \| good
2026-08-16T08:00:00.000Z	27 \| good	5.412 \| good	9.237 \| good	19.064 \| good	0.265 \| good	6.735 \| good	0.136 \| good
2026-08-16T09:00:00.000Z	27 \| good	4.887 \| good	8.36 \| good	23.167 \| good	0.261 \| good	4.916 \| good	0.128 \| good
2026-08-16T10:00:00.000Z	27 \| good	4.656 \| good	8.201 \| good	27.166 \| good	0.219 \| good	3.638 \| good	0.123 \| good
2026-08-16T11:00:00.000Z	31 \| good	4.507 \| good	8.006 \| good	32.589 \| good	0.202 \| good	2.279 \| good	0.12 \| good
2026-08-16T12:00:00.000Z	35 \| good	4.714 \| good	7.432 \| good	38.051 \| good	0.19 \| good	1.477 \| good	0.119 \| good
2026-08-16T13:00:00.000Z	38 \| good	4.721 \| good	7.29 \| good	41.321 \| good	0.157 \| good	1.273 \| good	0.12 \| good
2026-08-16T14:00:00.000Z	40 \| good	4.749 \| good	7.102 \| good	43.306 \| good	0.162 \| good	1.211 \| good	0.12 \| good
2026-08-16T15:00:00.000Z	42 \| good	4.72 \| good	7.175 \| good	44.976 \| good	0.155 \| good	1.374 \| good	0.121 \| good

Horley

Empower business decisions with accurate air quality data

Horley, Surrey air quality map: Real-time AQI near you

0.01ppm

How accurate is Surrey, UK air quality data?

Air quality measurements for Surrey, 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 Horley, Surrey updated?

Air quality data for Horley, Surrey is updated on an hourly basis.

When did Horley, Surrey experience the worst air quality in the last 24 hours?

The worst air quality in Horley, Surrey was recorded at 08:00:00 on 2026-08-13.

When did Horley, Surrey have its best air quality in the last 24 hours?

The best air quality in Horley, Surrey was recorded at 07:00:00 on 2026-08-14.

What is the real-time air quality index for Horley, Surrey?

The real-time air quality index in Horley, Surrey is 50, currently categorized as Good.

Which pollutant is found most often in Horley, Surrey?

The most common pollutant in Horley, Surrey is O3.

What can I do if the air quality in Horley, Surrey is poor?

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

What are the current PM_2.5 levels in Horley, Surrey?

The measured PM_2.5 levels in Horley, Surrey at present are 9 μg/m³.

What are the current PM₁₀ levels at Horley, Surrey?

The current PM₁₀ levels in Horley, Surrey are 22 μg/m³.

What are the current carbon monoxide (CO) levels at Horley, Surrey?

The current carbon monoxide (CO) level in Horley, Surrey is 0.013 ppm.

What are the current sulfur dioxide (SO₂) levels at Horley, Surrey?

The current sulfur dioxide (SO₂) levels in Horley, Surrey are 0.573 ppb.

What are the current ozone (O₃) levels at Horley, Surrey?

The current ozone (O₃) levels at Horley, Surrey is 53.5 ppm.

What are the current nitrogen dioxide (NO₂) levels at Horley, Surrey?

The current nitrogen dioxide (NO₂) levels at Horley, Surrey is 23.83 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-12T18:00:00.000Z	46 \| good	5 \| good	15 \| good	50.137 \| good	0.841 \| good	3.67 \| good	0.014 \| good
2026-08-12T19:00:00.000Z	49 \| good	5 \| good	15 \| good	52.818 \| good	0.787 \| good	3.67 \| good	0.015 \| good
2026-08-12T20:00:00.000Z	41 \| good	5 \| good	15 \| good	44.387 \| good	0.57 \| good	3.67 \| good	0.014 \| good
2026-08-12T21:00:00.000Z	41 \| good	5 \| good	14 \| good	44.242 \| good	0.821 \| good	3.67 \| good	0.012 \| good
2026-08-12T22:00:00.000Z	58 \| moderate	5 \| good	14 \| good	56.73 \| fine	0.953 \| good	3.67 \| good	0.012 \| good
2026-08-12T23:00:00.000Z	46 \| good	5 \| good	15 \| good	50.198 \| good	0.982 \| good	3.67 \| good	0.012 \| good
2026-08-13T00:00:00.000Z	61 \| moderate	5 \| good	15 \| good	57.735 \| fine	1.12 \| good	11.17 \| good	0.165 \| good
2026-08-13T01:00:00.000Z	45 \| good	5 \| good	16 \| good	49.422 \| good	0.795 \| good	10.106 \| good	0.153 \| good
2026-08-13T02:00:00.000Z	37 \| good	5 \| good	16 \| good	40.158 \| good	0.711 \| good	9.043 \| good	0.158 \| good
2026-08-13T03:00:00.000Z	36 \| good	5 \| good	16 \| good	39.089 \| good	0.716 \| good	7.979 \| good	0.158 \| good
2026-08-13T04:00:00.000Z	33 \| good	6 \| good	16 \| good	35.077 \| good	0.791 \| good	9.043 \| good	0.165 \| good
2026-08-13T05:00:00.000Z	33 \| good	6 \| good	16 \| good	28.234 \| good	0.593 \| good	9.894 \| good	0.012 \| good
2026-08-13T06:00:00.000Z	37 \| good	6 \| good	17 \| good	39.513 \| good	0.716 \| good	9.894 \| good	0.013 \| good
2026-08-13T07:00:00.000Z	33 \| good	6 \| good	17 \| good	36.305 \| good	0.687 \| good	9.894 \| good	0.012 \| good
2026-08-13T08:00:00.000Z	33 \| good	6 \| good	17 \| good	34.379 \| good	0.606 \| good	9.894 \| good	0.012 \| good
2026-08-13T09:00:00.000Z	38 \| good	6 \| good	18 \| good	40.921 \| good	0.745 \| good	9.894 \| good	0.013 \| good
2026-08-13T10:00:00.000Z	33 \| good	6 \| good	18 \| good	25.013 \| good	5.068 \| good	9.894 \| good	0.013 \| good
2026-08-13T11:00:00.000Z	34 \| good	6 \| good	18 \| good	37.214 \| good	1.015 \| good	9.894 \| good	0.013 \| good
2026-08-13T12:00:00.000Z	36 \| good	6 \| good	18 \| good	39.308 \| good	1.108 \| good	9.894 \| good	0.013 \| good
2026-08-13T13:00:00.000Z	33 \| good	6 \| good	18 \| good	30.963 \| good	0.819 \| good	9.894 \| good	0.014 \| good
2026-08-13T14:00:00.000Z	48 \| good	6 \| good	19 \| good	52.283 \| good	1.032 \| good	9.894 \| good	0.012 \| good
2026-08-13T15:00:00.000Z	67 \| moderate	6 \| good	19 \| good	59.889 \| fine	0.739 \| good	9.894 \| good	0.014 \| good
2026-08-13T16:00:00.000Z	77 \| moderate	6 \| good	19 \| good	63.131 \| fine	0.739 \| good	9.894 \| good	0.013 \| good
2026-08-13T17:00:00.000Z	87 \| moderate	6 \| good	19 \| good	66.355 \| fine	0.968 \| good	9.894 \| good	0.012 \| good
2026-08-13T18:00:00.000Z	47 \| good	6 \| good	19 \| good	51.022 \| good	0.924 \| good	9.894 \| good	0.018 \| good
2026-08-13T19:00:00.000Z	50 \| good	6 \| good	20 \| good	53.831 \| good	0.774 \| good	9.894 \| good	0.016 \| good
2026-08-13T20:00:00.000Z	93 \| moderate	6 \| good	20 \| good	68.006 \| fine	0.848 \| good	9.894 \| good	0.017 \| good
2026-08-13T21:00:00.000Z	43 \| good	6 \| good	20 \| good	45.827 \| good	0.665 \| good	9.894 \| good	0.019 \| good
2026-08-13T22:00:00.000Z	90 \| moderate	6 \| good	20 \| good	67.2 \| fine	0.814 \| good	9.894 \| good	0.014 \| good
2026-08-13T23:00:00.000Z	67 \| moderate	6 \| good	20 \| good	60.178 \| fine	0.74 \| good	9.894 \| good	0.01 \| good
2026-08-14T00:00:00.000Z	54 \| moderate	6 \| good	19 \| good	56.386 \| fine	0.875 \| good	40.957 \| good	0.151 \| good
2026-08-14T01:00:00.000Z	45 \| good	6 \| good	19 \| good	49.429 \| good	0.75 \| good	23.936 \| good	0.139 \| good
2026-08-14T02:00:00.000Z	67 \| moderate	6 \| good	19 \| good	59.803 \| fine	0.892 \| good	21.277 \| good	0.142 \| good
2026-08-14T03:00:00.000Z	47 \| good	6 \| good	20 \| good	51.016 \| good	0.915 \| good	18.617 \| good	0.148 \| good
2026-08-14T04:00:00.000Z	49 \| good	6 \| good	20 \| good	52.782 \| good	0.911 \| good	12.234 \| good	0.148 \| good
2026-08-14T05:00:00.000Z	44 \| good	6 \| good	20 \| good	47.15 \| good	0.759 \| good	23.83 \| good	0.012 \| good
2026-08-14T06:00:00.000Z	39 \| good	6 \| good	20 \| good	41.678 \| good	0.804 \| good	23.83 \| good	0.012 \| good
2026-08-14T07:00:00.000Z	34 \| good	6 \| good	20 \| good	36.648 \| good	0.756 \| good	23.83 \| good	0.012 \| good
2026-08-14T08:00:00.000Z	44 \| good	6 \| good	20 \| good	48.314 \| good	0.717 \| good	23.83 \| good	0.012 \| good
2026-08-14T09:00:00.000Z	42 \| good	7 \| good	21 \| good	44.675 \| good	0.649 \| good	23.83 \| good	0.012 \| good
2026-08-14T10:00:00.000Z	48 \| good	7 \| good	21 \| good	51.828 \| good	0.762 \| good	23.83 \| good	0.013 \| good
2026-08-14T11:00:00.000Z	45 \| good	7 \| good	21 \| good	48.606 \| good	0.672 \| good	23.83 \| good	0.013 \| good
2026-08-14T12:00:00.000Z	39 \| good	7 \| good	21 \| good	41.611 \| good	0.779 \| good	23.83 \| good	0.014 \| good
2026-08-14T13:00:00.000Z	64 \| moderate	8 \| good	21 \| good	58.602 \| fine	0.611 \| good	23.83 \| good	0.014 \| good
2026-08-14T14:00:00.000Z	44 \| good	8 \| good	21 \| good	46.96 \| good	0.649 \| good	23.83 \| good	0.015 \| good
2026-08-14T15:00:00.000Z	49 \| good	8 \| good	22 \| good	52.795 \| good	0.649 \| good	23.83 \| good	0.014 \| good
2026-08-14T16:00:00.000Z	48 \| good	8 \| good	22 \| good	51.744 \| good	0.649 \| good	23.83 \| good	0.013 \| good
2026-08-14T17:00:00.000Z	50 \| good	9 \| good	22 \| good	53.5 \| good	0.573 \| good	23.83 \| good	0.013 \| good
2026-08-14T17:00:00.000Z	50 \| good	9 \| good	22 \| good	53.5 \| good	0.573 \| good	23.83 \| good	0.013 \| good
2026-08-14T16:00:00.000Z	44 \| good	4.835 \| good	6.768 \| good	48.358 \| good	0.125 \| good	1.956 \| good	0.112 \| good
2026-08-14T17:00:00.000Z	44 \| good	4.772 \| good	6.725 \| good	47.207 \| good	0.141 \| good	2.28 \| good	0.119 \| good
2026-08-14T18:00:00.000Z	43 \| good	5.532 \| good	7.699 \| good	46.024 \| good	0.162 \| good	3.613 \| good	0.126 \| good
2026-08-14T19:00:00.000Z	39 \| good	5.266 \| good	8.28 \| good	42.046 \| good	0.2 \| good	5.849 \| good	0.138 \| good
2026-08-14T20:00:00.000Z	34 \| good	5.332 \| good	9.556 \| good	37.321 \| good	0.233 \| good	7.597 \| good	0.148 \| good
2026-08-14T21:00:00.000Z	38 \| good	7.389 \| good	11.498 \| good	33.826 \| good	0.264 \| good	9.948 \| good	0.167 \| good
2026-08-14T22:00:00.000Z	49 \| good	8.802 \| good	14.229 \| good	29.361 \| good	0.278 \| good	8.791 \| good	0.183 \| good
2026-08-14T23:00:00.000Z	49 \| good	9.084 \| good	15.101 \| good	29.875 \| good	0.305 \| good	7.589 \| good	0.175 \| good
2026-08-15T00:00:00.000Z	44 \| good	8.427 \| good	14.21 \| good	25.926 \| good	0.297 \| good	7.716 \| good	0.154 \| good
2026-08-15T01:00:00.000Z	44 \| good	7.956 \| good	10.168 \| good	27.589 \| good	0.28 \| good	6.359 \| good	0.136 \| good
2026-08-15T02:00:00.000Z	33 \| good	5.917 \| good	7.685 \| good	26.867 \| good	0.256 \| good	5.493 \| good	0.128 \| good
2026-08-15T03:00:00.000Z	33 \| good	5.733 \| good	6.496 \| good	23.788 \| good	0.328 \| good	5.068 \| good	0.123 \| good
2026-08-15T04:00:00.000Z	27 \| good	5.441 \| good	6.274 \| good	22.636 \| good	0.319 \| good	4.543 \| good	0.122 \| good
2026-08-15T05:00:00.000Z	27 \| good	4.681 \| good	6.037 \| good	21.969 \| good	0.234 \| good	4.745 \| good	0.123 \| good
2026-08-15T06:00:00.000Z	22 \| good	3.811 \| good	5.381 \| good	21.626 \| good	0.194 \| good	4.331 \| good	0.122 \| good
2026-08-15T07:00:00.000Z	22 \| good	4.031 \| good	5.873 \| good	22.07 \| good	0.207 \| good	3.935 \| good	0.126 \| good
2026-08-15T08:00:00.000Z	22 \| good	4.325 \| good	6.551 \| good	22.569 \| good	0.235 \| good	3.735 \| good	0.129 \| good
2026-08-15T09:00:00.000Z	25 \| good	4.296 \| good	6.512 \| good	26.89 \| good	0.236 \| good	3.221 \| good	0.128 \| good
2026-08-15T10:00:00.000Z	28 \| good	4.291 \| good	7.255 \| good	30.277 \| good	0.205 \| good	2.689 \| good	0.125 \| good
2026-08-15T11:00:00.000Z	31 \| good	4.767 \| good	7.477 \| good	33.295 \| good	0.169 \| good	2.532 \| good	0.122 \| good
2026-08-15T12:00:00.000Z	33 \| good	4.739 \| good	7.557 \| good	36.329 \| good	0.154 \| good	2.588 \| good	0.123 \| good
2026-08-15T13:00:00.000Z	35 \| good	5.11 \| good	7.266 \| good	38.024 \| good	0.143 \| good	2.376 \| good	0.123 \| good
2026-08-15T14:00:00.000Z	36 \| good	5.056 \| good	6.604 \| good	39.4 \| good	0.134 \| good	2.506 \| good	0.123 \| good
2026-08-15T15:00:00.000Z	39 \| good	4.661 \| good	6.213 \| good	41.834 \| good	0.134 \| good	2.258 \| good	0.124 \| good
2026-08-15T16:00:00.000Z	39 \| good	4.631 \| good	6.249 \| good	41.965 \| good	0.134 \| good	2.1 \| good	0.124 \| good
2026-08-15T17:00:00.000Z	38 \| good	4.201 \| good	6.611 \| good	40.56 \| good	0.17 \| good	2.547 \| good	0.125 \| good
2026-08-15T18:00:00.000Z	36 \| good	4.223 \| good	6.735 \| good	38.552 \| good	0.21 \| good	3.484 \| good	0.127 \| good
2026-08-15T19:00:00.000Z	31 \| good	4.673 \| good	7.178 \| good	33.433 \| good	0.227 \| good	4.612 \| good	0.131 \| good
2026-08-15T20:00:00.000Z	28 \| good	4.472 \| good	7.708 \| good	29.897 \| good	0.206 \| good	5.814 \| good	0.131 \| good
2026-08-15T21:00:00.000Z	25 \| good	4.282 \| good	6.677 \| good	26.714 \| good	0.184 \| good	6.444 \| good	0.128 \| good
2026-08-15T22:00:00.000Z	22 \| good	4.213 \| good	6.204 \| good	23.574 \| good	0.179 \| good	7.097 \| good	0.126 \| good
2026-08-15T23:00:00.000Z	22 \| good	4.214 \| good	5.944 \| good	22.954 \| good	0.146 \| good	6.158 \| good	0.126 \| good
2026-08-16T00:00:00.000Z	22 \| good	4.31 \| good	5.893 \| good	21.84 \| good	0.133 \| good	6.094 \| good	0.123 \| good
2026-08-16T01:00:00.000Z	22 \| good	4.292 \| good	6.78 \| good	22.125 \| good	0.125 \| good	4.439 \| good	0.116 \| good
2026-08-16T02:00:00.000Z	22 \| good	4.422 \| good	7.433 \| good	19.386 \| good	0.117 \| good	4.133 \| good	0.114 \| good
2026-08-16T03:00:00.000Z	27 \| good	5.374 \| good	8.042 \| good	18.167 \| good	0.129 \| good	4.334 \| good	0.114 \| good
2026-08-16T04:00:00.000Z	33 \| good	6.266 \| good	8.794 \| good	17.418 \| good	0.134 \| good	4.814 \| good	0.115 \| good
2026-08-16T05:00:00.000Z	33 \| good	6.358 \| good	9.583 \| good	15.946 \| good	0.168 \| good	6.46 \| good	0.119 \| good
2026-08-16T06:00:00.000Z	38 \| good	6.92 \| good	9.889 \| good	13.871 \| good	0.221 \| good	9.068 \| good	0.135 \| good
2026-08-16T07:00:00.000Z	38 \| good	6.96 \| good	9.872 \| good	13.689 \| good	0.244 \| good	8.212 \| good	0.137 \| good
2026-08-16T08:00:00.000Z	27 \| good	5.412 \| good	9.237 \| good	19.064 \| good	0.265 \| good	6.735 \| good	0.136 \| good
2026-08-16T09:00:00.000Z	27 \| good	4.887 \| good	8.36 \| good	23.167 \| good	0.261 \| good	4.916 \| good	0.128 \| good
2026-08-16T10:00:00.000Z	27 \| good	4.656 \| good	8.201 \| good	27.166 \| good	0.219 \| good	3.638 \| good	0.123 \| good
2026-08-16T11:00:00.000Z	31 \| good	4.507 \| good	8.006 \| good	32.589 \| good	0.202 \| good	2.279 \| good	0.12 \| good
2026-08-16T12:00:00.000Z	35 \| good	4.714 \| good	7.432 \| good	38.051 \| good	0.19 \| good	1.477 \| good	0.119 \| good
2026-08-16T13:00:00.000Z	38 \| good	4.721 \| good	7.29 \| good	41.321 \| good	0.157 \| good	1.273 \| good	0.12 \| good
2026-08-16T14:00:00.000Z	40 \| good	4.749 \| good	7.102 \| good	43.306 \| good	0.162 \| good	1.211 \| good	0.12 \| good
2026-08-16T15:00:00.000Z	42 \| good	4.72 \| good	7.175 \| good	44.976 \| good	0.155 \| good	1.374 \| good	0.121 \| good

Real-time air quality index in Horley, Surrey today

Common air pollutants in Horley, Surrey

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Horley, Surrey air quality forecast and history

Empower business decisions with accurate air quality data

Horley, Surrey air quality map: Real-time AQI near you

Air quality in nearby cities

Crawley, West Sussex

Redhill, Surrey

Reigate, Surrey

East Grinstead, West Sussex

Dorking, Surrey

Caterham, Surrey

How accurate is Surrey, UK air quality data?

Air quality levels in UK

Frequently asked questions

How frequently is the air quality data for Horley, Surrey updated?

When did Horley, Surrey experience the worst air quality in the last 24 hours?

When did Horley, Surrey have its best air quality in the last 24 hours?

What is the real-time air quality index for Horley, Surrey?

Which pollutant is found most often in Horley, Surrey?

What can I do if the air quality in Horley, Surrey is poor?

What are the current PM2.5 levels in Horley, Surrey?

What are the current PM10 levels at Horley, Surrey?

What are the current carbon monoxide (CO) levels at Horley, Surrey?

What are the current sulfur dioxide (SO2) levels at Horley, Surrey?

What are the current ozone (O3) levels at Horley, Surrey?

What are the current nitrogen dioxide (NO2) levels at Horley, Surrey?

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 Horley, Surrey?

What are the current PM₁₀ levels at Horley, Surrey?

What are the current sulfur dioxide (SO₂) levels at Horley, Surrey?

What are the current ozone (O₃) levels at Horley, Surrey?

What are the current nitrogen dioxide (NO₂) levels at Horley, Surrey?