Halewood, Knowsley, United Kingdom Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Halewood, Knowsley, United Kingdom
AQI Trends: Highest and Lowest
Same Day Analysis (31st August ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 1st highest AQI at 59 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
2025 Days Vs Air Quality
Halewood, Knowsley, United Kingdom
78%
165
19%
40
3%
6
Total number of days with different AQI categories in last 213 days in 2025 (152 days remaining)
Under WHO’s Safe Air Quality Limits: 78%
Health Risk Level:
Low
In 2025, 78% of 213 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
Halewood, Knowsley, United Kingdom
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
28AQI
28AQI
37AQI
32AQI
25AQI
24AQI
22AQI
43AQI
68AQI
78AQI
98AQI
73AQI
37AQI
31AQI
49AQI
60AQI
51AQI
58AQI
65AQI
67AQI
49AQI
66AQI
39AQI
41AQI
27AQI
27AQI
28AQI
26AQI
26AQI
27AQI
35AQI
48AQI
30AQI
30AQI
26AQI
24AQI
36AQI
29AQI
39AQI
48AQI
45AQI
61AQI
79AQI
140AQI
128AQI
130AQI
133AQI
109AQI
64AQI
84AQI
44AQI
31AQI
32AQI
29AQI
29AQI
26AQI
25AQI
26AQI
46AQI
52AQI
48AQI
35AQI
38AQI
38AQI
68AQI
51AQI
55AQI
84AQI
106AQI
38AQI
25AQI
24AQI
30AQI
26AQI
35AQI
27AQI
43AQI
66AQI
79AQI
66AQI
58AQI
62AQI
71AQI
36AQI
36AQI
25AQI
19AQI
23AQI
43AQI
44AQI
35AQI
38AQI
54AQI
60AQI
35AQI
36AQI
31AQI
47AQI
55AQI
52AQI
62AQI
57AQI
31AQI
22AQI
24AQI
22AQI
20AQI
28AQI
39AQI
32AQI
31AQI
22AQI
24AQI
51AQI
44AQI
58AQI
37AQI
28AQI
44AQI
60AQI
67AQI
28AQI
29AQI
25AQI
23AQI
29AQI
26AQI
26AQI
35AQI
40AQI
36AQI
45AQI
42AQI
40AQI
40AQI
38AQI
36AQI
43AQI
36AQI
41AQI
44AQI
32AQI
31AQI
26AQI
21AQI
21AQI
18AQI
21AQI
18AQI
18AQI
20AQI
23AQI
27AQI
26AQI
26AQI
21AQI
18AQI
17AQI
29AQI
62AQI
48AQI
48AQI
47AQI
42AQI
32AQI
27AQI
28AQI
33AQI
35AQI
37AQI
47AQI
52AQI
51AQI
27AQI
24AQI
18AQI
17AQI
21AQI
16AQI
22AQI
24AQI
25AQI
20AQI
19AQI
22AQI
19AQI
22AQI
21AQI
24AQI
23AQI
24AQI
25AQI
30AQI
28AQI
34AQI
24AQI
21AQI
26AQI
24AQI
24AQI
29AQI
26AQI
20AQI
49AQI
63AQI
66AQI
42AQI
34AQI
29AQI
24AQI
21AQI
44AQI
56AQI
47AQI
39AQI
32AQI
32AQI
29AQI
No. of days
202540AQI
Highest AQI recorded in
February56AQI
Lowest AQI recorded in
July29AQI
202433AQI
Highest AQI recorded in
November47AQI
Lowest AQI recorded in
July22AQI
202334AQI
Highest AQI recorded in
September46AQI
Lowest AQI recorded in
October27AQI
202237AQI
Highest AQI recorded in
March51AQI
Lowest AQI recorded in
August27AQI
202129AQI
Highest AQI recorded in
December32AQI
Lowest AQI recorded in
October22AQI
202033AQI
Highest AQI recorded in
March49AQI
Lowest AQI recorded in
July20AQI
Most & Least Polluted Years Over the Last 6 Years
Halewood's annual 2025 AQI (40) shows an average percentage change of 19.8% (worsened AQI) compared to previous years: 2020 (33), 2021 (29), 2022 (37), 2023 (34), 2024 (33).
