Stay updated with real-time air quality in Rayleigh, Essex featuring accurate data on AQI, PM2.5, 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)
71
Moderate
Rayleigh, Essex
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
10.89 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.73 μg/m³
0
55
155
255
425
605+
61.07 ppb
0
55
71
86
201
201+
0.96 ppb
0
36
76
186
605
1005+
12.59 ppb
0
54
101
361
1250
2050+
0.04 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Rayleigh, Essex
Rayleigh, Essex
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AQI 34
Good
5.67μg/m³
PM2.5
10.78μg/m³
PM10
36.72ppb
O3
0.63ppb
SO2
4.85ppb
NO2
0.29ppm
CO
AQI 35
Good
5.75μg/m³
PM2.5
10.68μg/m³
PM10
37.50ppb
O3
0.66ppb
SO2
5.49ppb
NO2
0.29ppm
CO
AQI 33
Good
5.99μg/m³
PM2.5
10.87μg/m³
PM10
33.58ppb
O3
0.68ppb
SO2
4.95ppb
NO2
0.29ppm
CO
AQI 44
Good
4.56μg/m³
PM2.5
12.87μg/m³
PM10
47.69ppb
O3
0.76ppb
SO2
2.77ppb
NO2
0.29ppm
CO
AQI 35
Good
5.79μg/m³
PM2.5
10.64μg/m³
PM10
37.68ppb
O3
0.68ppb
SO2
5.68ppb
NO2
0.29ppm
CO
AQI 35
Good
5.51μg/m³
PM2.5
10.73μg/m³
PM10
37.69ppb
O3
0.59ppb
SO2
4.50ppb
NO2
0.29ppm
CO
Air quality and pollutant data for Essex, UK are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Rayleigh, Essex is updated every hour for accuracy.
In the past 24 hours, the air quality in Rayleigh, Essex was at its worst at 09:00:00 on 2025-06-15.
In the last 24 hours, the best air quality in Rayleigh, Essex was observed at 03:00:00 on 2025-06-16.
As of now, the AQI in Rayleigh, Essex is 34, indicating Good conditions.
Rayleigh, Essex air has the highest levels of O3.
Poor air quality in Rayleigh, Essex means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Rayleigh, Essex are currently 5.705 μg/m3.
The PM10 concentration in Rayleigh, Essex is 10.739 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Rayleigh, Essex is 0.287 ppm.
Currently, Rayleigh, Essex has a sulfur dioxide (SO2) concentration of 0.642 ppb.
The current ozone (O3) level in Rayleigh, Essex at the moment is 37.021 ppm.
Nitrogen dioxide (NO2) level in Rayleigh, Essex at the moment is 5.115 ppb.
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