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)
26
Good
Holywood, Ards and North Down
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.49 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.62 μg/m³
0
55
155
255
425
605+
27.89 ppb
0
55
71
86
201
201+
0.32 ppb
0
36
76
186
605
1005+
9.34 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Holywood, Ards and North Down
Holywood, Ards and North Down
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AQI 26
Good
4.44μg/m³
PM2.5
10.56μg/m³
PM10
27.72ppb
O3
0.33ppb
SO2
9.56ppb
NO2
0.28ppm
CO
AQI 25
Good
4.20μg/m³
PM2.5
10.72μg/m³
PM10
26.73ppb
O3
0.31ppb
SO2
7.81ppb
NO2
0.28ppm
CO
AQI 27
Good
4.75μg/m³
PM2.5
9.73μg/m³
PM10
22.11ppb
O3
0.38ppb
SO2
8.67ppb
NO2
0.24ppm
CO
AQI 29
Good
4.50μg/m³
PM2.5
10.96μg/m³
PM10
30.53ppb
O3
0.30ppb
SO2
8.52ppb
NO2
0.28ppm
CO
AQI 28
Good
4.33μg/m³
PM2.5
10.36μg/m³
PM10
29.81ppb
O3
0.30ppb
SO2
8.20ppb
NO2
0.28ppm
CO
AQI 24
Good
4.36μg/m³
PM2.5
9.32μg/m³
PM10
25.64ppb
O3
0.27ppb
SO2
7.33ppb
NO2
0.28ppm
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 02:00:00 on 2025-06-15.
In the last 24 hours, the best air quality in Holywood, Ards and North Down was observed at 02:00:00 on 2025-06-15.
As of now, the AQI in Holywood, Ards and North Down is 26, indicating Good conditions.
Holywood, Ards and North Down air has the highest levels of O3.
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 4.489 μg/m3.
The PM10 concentration in Holywood, Ards and North Down is 10.621 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Holywood, Ards and North Down is 0.278 ppm.
Currently, Holywood, Ards and North Down has a sulfur dioxide (SO2) concentration of 0.323 ppb.
The current ozone (O3) level in Holywood, Ards and North Down at the moment is 27.895 ppm.
Nitrogen dioxide (NO2) level in Holywood, Ards and North Down at the moment is 9.335 ppb.
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