Delta, British Columbia, Canada Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
June Air Quality Analysis
Delta, British Columbia, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (2nd June):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 12 of Good air quality, showing improvement over 2025, 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 1st Jun - 2nd Jun 2026
Delta, British Columbia, Canada
5 AM1st Jun 2026
8 PM
4 AM2nd Jun 2026
33AQI
10AQI
22AQI
11AQI
In the last 24 hours,
Delta's AQI reached its highest point of 33 at 9 PM during the Day, while the lowest point, 10, was recorded at 6 PM during the Day between 1st Jun and 2nd Jun 2026.
Day & Night AQI Trend : May - Jun 2026
Delta, British Columbia, Canada
18°C11/26°C
15°C11/19°C
13°C10/17°C
14°C9/18°C
14°C10/18°C
15°C9/21°C
15°C10/20°C
15°C11/22°C
17°C9/25°C
15°C12/20°C
13°C10/17°C
11°C9/14°C
11°C7/17°C
12°C6/18°C
14°C9/20°C
13°C10/17°C
12°C11/14°C
15°C9/21°C
17°C9/22°C
15°C12/21°C
15°C10/20°C
14°C11/19°C
13°C9/19°C
16°C10/24°C
18°C13/25°C
14°C12/20°C
14°C7/19°C
14°C10/21°C
18°C10/25°C
20°C12/29°C
36AQI
22AQI
26AQI
23AQI
2026 Days Vs Air Quality
Delta, British Columbia, Canada
98%
147
2%
3
Total number of days with different AQI categories in last 153 days in 2026 (212 days remaining)
Under WHO’s Safe Air Quality Limits: 98%
Health Risk Level:
Very Low
In 2026, 98% of 153 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Delta, British Columbia, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
33AQI (US)
38AQI (US)
16AQI (US)
11AQI (US)
20AQI (US)
12AQI (US)
11AQI (US)
13AQI (US)
15AQI (US)
26AQI (US)
25AQI (US)
19AQI (US)
21AQI (US)
18AQI (US)
15AQI (US)
18AQI (US)
22AQI (US)
26AQI (US)
26AQI (US)
27AQI (US)
23AQI (US)
33AQI (US)
37AQI (US)
35AQI (US)
25AQI (US)
30AQI (US)
24AQI (US)
32AQI (US)
52AQI (US)
44AQI (US)
43AQI (US)
48AQI (US)
41AQI (US)
41AQI (US)
35AQI (US)
33AQI (US)
25AQI (US)
25AQI (US)
34AQI (US)
35AQI (US)
45AQI (US)
32AQI (US)
23AQI (US)
43AQI (US)
41AQI (US)
39AQI (US)
40AQI (US)
44AQI (US)
31AQI (US)
33AQI (US)
24AQI (US)
35AQI (US)
34AQI (US)
36AQI (US)
34AQI (US)
31AQI (US)
34AQI (US)
28AQI (US)
31AQI (US)
34AQI (US)
36AQI (US)
24AQI (US)
46AQI (US)
36AQI (US)
34AQI (US)
43AQI (US)
37AQI (US)
39AQI (US)
36AQI (US)
41AQI (US)
42AQI (US)
36AQI (US)
35AQI (US)
35AQI (US)
35AQI (US)
34AQI (US)
31AQI (US)
34AQI (US)
39AQI (US)
38AQI (US)
37AQI (US)
25AQI (US)
33AQI (US)
30AQI (US)
25AQI (US)
20AQI (US)
29AQI (US)
25AQI (US)
20AQI (US)
17AQI (US)
27AQI (US)
32AQI (US)
21AQI (US)
28AQI (US)
25AQI (US)
22AQI (US)
16AQI (US)
19AQI (US)
20AQI (US)
25AQI (US)
26AQI (US)
17AQI (US)
29AQI (US)
34AQI (US)
34AQI (US)
26AQI (US)
29AQI (US)
25AQI (US)
16AQI (US)
16AQI (US)
18AQI (US)
16AQI (US)
14AQI (US)
21AQI (US)
17AQI (US)
15AQI (US)
18AQI (US)
22AQI (US)
22AQI (US)
18AQI (US)
19AQI (US)
25AQI (US)
24AQI (US)
16AQI (US)
14AQI (US)
19AQI (US)
21AQI (US)
17AQI (US)
19AQI (US)
16AQI (US)
22AQI (US)
46AQI (US)
51AQI (US)
55AQI (US)
45AQI (US)
43AQI (US)
40AQI (US)
34AQI (US)
38AQI (US)
40AQI (US)
41AQI (US)
41AQI (US)
26AQI (US)
17AQI (US)
17AQI (US)
13AQI (US)
14AQI (US)
16AQI (US)
19AQI (US)
12AQI (US)
25AQI (US)
35AQI (US)
33AQI (US)
22AQI (US)
28AQI (US)
16AQI (US)
No. of days
202629AQI (US)
Highest AQI (US) recorded in
February35AQI (US)
Lowest AQI (US) recorded in
June16AQI (US)
202525AQI (US)
Highest AQI (US) recorded in
September33AQI (US)
Lowest AQI (US) recorded in
May19AQI (US)
202418AQI (US)
Highest AQI (US) recorded in
December26AQI (US)
Lowest AQI (US) recorded in
September14AQI (US)
202319AQI (US)
Highest AQI (US) recorded in
August24AQI (US)
Lowest AQI (US) recorded in
January14AQI (US)
202217AQI (US)
Highest AQI (US) recorded in
October31AQI (US)
Lowest AQI (US) recorded in
July10AQI (US)
202120AQI (US)
Highest AQI (US) recorded in
August35AQI (US)
Lowest AQI (US) recorded in
December11AQI (US)
202022AQI (US)
Highest AQI (US) recorded in
September51AQI (US)
Lowest AQI (US) recorded in
June14AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Delta's annual 2026 AQI (US) (29) shows an average percentage change of 46.1% (worsened AQI (US)) compared to previous years: 2020 (22), 2021 (20), 2022 (17), 2023 (19), 2024 (18), 2025 (25).