Stay updated with real-time air quality in Holywood, Ards and North Down 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)
64
Moderate
Holywood, Ards and North Down
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
15.73 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.18 μg/m³
0
55
155
255
425
605+
18.15 ppb
0
55
71
86
201
201+
0.69 ppb
0
36
76
186
605
1005+
3.94 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Holywood, Ards and North Down
Holywood, Ards and North Down
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AQI 58
Moderate
13.48μg/m³
PM2.5
23.57μg/m³
PM10
21.62ppb
O3
9.04ppb
SO2
12.33ppb
NO2
0.12ppm
CO
AQI 60
Moderate
14.43μg/m³
PM2.5
23.06μg/m³
PM10
22.76ppb
O3
7.56ppb
SO2
7.21ppb
NO2
0.12ppm
CO
AQI 60
Moderate
14.35μg/m³
PM2.5
25.25μg/m³
PM10
14.96ppb
O3
14.23ppb
SO2
12.23ppb
NO2
0.12ppm
CO
AQI 62
Moderate
14.69μg/m³
PM2.5
23.92μg/m³
PM10
18.46ppb
O3
6.99ppb
SO2
11.57ppb
NO2
0.11ppm
CO
AQI 62
Moderate
15.06μg/m³
PM2.5
23.80μg/m³
PM10
18.15ppb
O3
6.85ppb
SO2
11.71ppb
NO2
0.11ppm
CO
AQI 62
Moderate
15.06μg/m³
PM2.5
23.02μg/m³
PM10
18.49ppb
O3
6.77ppb
SO2
6.71ppb
NO2
0.12ppm
CO
Air quality and pollutant data for Ards and North Down, 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 Holywood, Ards and North Down is updated every hour for accuracy.
In the past 24 hours, the air quality in Holywood, Ards and North Down was at its worst at 01:00:00 on 2025-07-23.
In the last 24 hours, the best air quality in Holywood, Ards and North Down was observed at 06:00:00 on 2025-07-22.
As of now, the AQI in Holywood, Ards and North Down is 60, indicating Moderate conditions.
Holywood, Ards and North Down air has the highest levels of PM2.5.
Poor air quality in Holywood, Ards and North Down means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Holywood, Ards and North Down are currently 13.665 μg/m3.
The PM10 concentration in Holywood, Ards and North Down is 24.007 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Holywood, Ards and North Down is 0.115 ppm.
Currently, Holywood, Ards and North Down has a sulfur dioxide (SO2) concentration of 8.721 ppb.
The current ozone (O3) level in Holywood, Ards and North Down at the moment is 21.782 ppm.
Nitrogen dioxide (NO2) level in Holywood, Ards and North Down at the moment is 11.497 ppb.
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