Oldtown Mill, Dunboyne, Meath, Ireland Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Oldtown Mill, Dunboyne, Meath, Ireland
AQI Trends: Highest and Lowest
Same Day Analysis (19th September ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 1st highest AQI at 16 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 18th Sep - 19th Sep 2025
Oldtown Mill, Dunboyne, Meath, Ireland
6 AM18th Sep 2025
8 PM
5 AM19th Sep 2025
16AQI
14AQI
17AQI
14AQI
In the last 24 hours,
Oldtown Mill's AQI reached its highest point of 17 at 11 PM during the Night, while the lowest point, 14, was recorded at 4 AM during the Night between 18th Sep and 19th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Oldtown Mill, Dunboyne, Meath, Ireland
14°C9/16°C
14°C8/19°C
15°C10/20°C
17°C14/20°C
17°C13/21°C
18°C13/23°C
15°C12/19°C
14°C11/18°C
13°C12/16°C
14°C12/17°C
14°C10/18°C
14°C12/18°C
13°C10/16°C
13°C8/17°C
13°C9/16°C
12°C8/17°C
13°C9/17°C
16°C11/19°C
15°C11/18°C
11°C7/16°C
14°C10/16°C
13°C10/17°C
11°C10/13°C
11°C8/14°C
10°C8/14°C
11°C7/16°C
12°C11/13°C
12°C9/15°C
15°C11/18°C
14°C9/18°C
--°C/°C
21AQI
20AQI
22AQI
20AQI
2025 Days Vs Air Quality
Oldtown Mill, Dunboyne, Meath, Ireland
86%
225
14%
37
Total number of days with different AQI categories in last 262 days in 2025 (103 days remaining)
Under WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2025, 86% of 262 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Oldtown Mill, Dunboyne, Meath, Ireland
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
21AQI
29AQI
51AQI
51AQI
46AQI
21AQI
20AQI
35AQI
73AQI
68AQI
46AQI
67AQI
42AQI
40AQI
29AQI
29AQI
27AQI
31AQI
39AQI
49AQI
43AQI
39AQI
31AQI
25AQI
25AQI
21AQI
28AQI
35AQI
25AQI
28AQI
29AQI
65AQI
33AQI
26AQI
22AQI
21AQI
54AQI
59AQI
40AQI
41AQI
55AQI
46AQI
53AQI
55AQI
69AQI
56AQI
55AQI
62AQI
64AQI
64AQI
30AQI
29AQI
23AQI
30AQI
27AQI
26AQI
23AQI
23AQI
48AQI
38AQI
40AQI
27AQI
26AQI
23AQI
36AQI
45AQI
40AQI
64AQI
91AQI
62AQI
29AQI
28AQI
35AQI
47AQI
44AQI
25AQI
35AQI
65AQI
73AQI
65AQI
66AQI
26AQI
24AQI
23AQI
34AQI
23AQI
19AQI
25AQI
33AQI
40AQI
28AQI
33AQI
47AQI
65AQI
61AQI
48AQI
42AQI
52AQI
61AQI
56AQI
56AQI
56AQI
41AQI
16AQI
16AQI
14AQI
16AQI
19AQI
23AQI
54AQI
38AQI
21AQI
19AQI
31AQI
24AQI
23AQI
18AQI
18AQI
28AQI
46AQI
58AQI
34AQI
23AQI
17AQI
16AQI
23AQI
27AQI
29AQI
35AQI
38AQI
44AQI
38AQI
43AQI
36AQI
38AQI
30AQI
30AQI
34AQI
33AQI
34AQI
30AQI
28AQI
31AQI
24AQI
16AQI
16AQI
16AQI
16AQI
14AQI
18AQI
16AQI
15AQI
18AQI
17AQI
18AQI
16AQI
14AQI
14AQI
30AQI
59AQI
42AQI
34AQI
32AQI
31AQI
29AQI
22AQI
25AQI
33AQI
27AQI
33AQI
30AQI
40AQI
38AQI
24AQI
20AQI
16AQI
15AQI
16AQI
15AQI
16AQI
16AQI
15AQI
16AQI
15AQI
17AQI
16AQI
16AQI
16AQI
17AQI
16AQI
17AQI
17AQI
18AQI
21AQI
21AQI
18AQI
18AQI
18AQI
16AQI
17AQI
18AQI
17AQI
16AQI
29AQI
52AQI
55AQI
36AQI
28AQI
24AQI
18AQI
15AQI
16AQI
19AQI
20AQI
20AQI
22AQI
24AQI
28AQI
27AQI
21AQI
22AQI
23AQI
25AQI
41AQI
54AQI
46AQI
35AQI
37AQI
39AQI
35AQI
38AQI
29AQI
23AQI
23AQI
25AQI
26AQI
29AQI
27AQI
25AQI
21AQI
20AQI
18AQI
20AQI
21AQI
21AQI
19AQI
17AQI
18AQI
17AQI
22AQI
21AQI
20AQI
19AQI
19AQI
17AQI
17AQI
17AQI
17AQI
21AQI
18AQI
16AQI
16AQI
37AQI
43AQI
40AQI
36AQI
29AQI
25AQI
21AQI
28AQI
19AQI
No. of days
202531AQI
Highest AQI recorded in
February43AQI
Lowest AQI recorded in
September19AQI
202426AQI
Highest AQI recorded in
September48AQI
Lowest AQI recorded in
June12AQI
202318AQI
Highest AQI recorded in
June28AQI
Lowest AQI recorded in
August8AQI
202231AQI
Highest AQI recorded in
December41AQI
Lowest AQI recorded in
October21AQI
Most & Least Polluted Years Over the Last 4 Years
Oldtown Mill's annual 2025 AQI (31) shows an average percentage change of 29.6% (worsened AQI) compared to previous years: 2022 (31), 2023 (18), 2024 (26).