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)
27
Good
Holywood, Ards and North Down
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.63 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.88 μg/m³
0
55
155
255
425
605+
27.81 ppb
0
55
71
86
201
201+
0.32 ppb
0
36
76
186
605
1005+
7.50 ppb
0
54
101
361
1250
2050+
0.20 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 27
Good
4.54μg/m³
PM2.5
15.64μg/m³
PM10
29.00ppb
O3
0.33ppb
SO2
6.93ppb
NO2
0.20ppm
CO
AQI 30
Good
4.30μg/m³
PM2.5
16.07μg/m³
PM10
31.96ppb
O3
0.32ppb
SO2
7.26ppb
NO2
0.20ppm
CO
AQI 27
Good
4.80μg/m³
PM2.5
15.39μg/m³
PM10
23.16ppb
O3
0.38ppb
SO2
8.00ppb
NO2
0.32ppm
CO
AQI 29
Good
4.60μg/m³
PM2.5
16.04μg/m³
PM10
30.77ppb
O3
0.31ppb
SO2
7.26ppb
NO2
0.20ppm
CO
AQI 27
Good
4.73μg/m³
PM2.5
13.37μg/m³
PM10
28.83ppb
O3
0.30ppb
SO2
7.53ppb
NO2
0.20ppm
CO
AQI 29
Good
5.13μg/m³
PM2.5
14.49μg/m³
PM10
30.81ppb
O3
0.32ppb
SO2
6.69ppb
NO2
0.20ppm
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 03:00:00 on 2025-06-05.
In the last 24 hours, the best air quality in Holywood, Ards and North Down was observed at 01:00:00 on 2025-06-06.
As of now, the AQI in Holywood, Ards and North Down is 27, indicating Good 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 4.633 μg/m3.
The PM10 concentration in Holywood, Ards and North Down is 18.878 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Holywood, Ards and North Down is 0.196 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 27.813 ppm.
Nitrogen dioxide (NO2) level in Holywood, Ards and North Down at the moment is 7.495 ppb.
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