StCroix, Sarpsborg, Ostfold, Norway Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
March Air Quality Analysis
StCroix, Sarpsborg, Ostfold, Norway
AQI Trends: Highest and Lowest
Same Day Analysis (11th March):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 43 of Good air quality, showing improvement over 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 10th Mar - 11th Mar 2026
StCroix, Sarpsborg, Ostfold, Norway
7 AM10th Mar 2026
5 PM
6 AM11th Mar 2026
99AQI
53AQI
73AQI
17AQI
In the last 24 hours,
StCroix's AQI reached its highest point of 99 at 2 PM during the Day, while the lowest point, 17, was recorded at 12 AM during the Night between 10th Mar and 11th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
StCroix, Sarpsborg, Ostfold, Norway
-9°C-11/-7°C
-7°C-10/-3°C
-9°C-10/-7°C
-10°C-12/-7°C
-11°C-14/-8°C
-4°C-10/-1°C
-5°C-7/-4°C
-6°C-8/-3°C
-7°C-10/-4°C
-9°C-13/-5°C
-1°C-5/0°C
0°C-5/2°C
-3°C-6/0°C
-1°C-4/0°C
-2°C-5/1°C
-1°C-4/1°C
3°C2/4°C
3°C1/3°C
2°C0/3°C
0°C-2/3°C
2°C-1/4°C
4°C2/6°C
3°C1/7°C
2°C0/3°C
2°C1/5°C
3°C2/5°C
3°C3/6°C
3°C1/4°C
3°C2/4°C
4°C3/4°C
40AQI
36AQI
47AQI
36AQI
2026 Days Vs Air Quality
StCroix, Sarpsborg, Ostfold, Norway
80%
56
20%
14
Total number of days with different AQI categories in last 71 days in 2026 (294 days remaining)
Under WHO’s Safe Air Quality Limits: 80%
Health Risk Level:
Low
In 2026, 80% of 71 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
StCroix, Sarpsborg, Ostfold, Norway
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
20AQI (US)
14AQI (US)
13AQI (US)
19AQI (US)
20AQI (US)
24AQI (US)
35AQI (US)
58AQI (US)
41AQI (US)
31AQI (US)
93AQI (US)
56AQI (US)
31AQI (US)
29AQI (US)
79AQI (US)
29AQI (US)
42AQI (US)
34AQI (US)
41AQI (US)
52AQI (US)
30AQI (US)
28AQI (US)
46AQI (US)
51AQI (US)
49AQI (US)
41AQI (US)
35AQI (US)
37AQI (US)
37AQI (US)
46AQI (US)
46AQI (US)
28AQI (US)
17AQI (US)
43AQI (US)
40AQI (US)
46AQI (US)
48AQI (US)
11AQI (US)
15AQI (US)
43AQI (US)
47AQI (US)
32AQI (US)
14AQI (US)
31AQI (US)
53AQI (US)
44AQI (US)
19AQI (US)
33AQI (US)
61AQI (US)
72AQI (US)
26AQI (US)
39AQI (US)
60AQI (US)
28AQI (US)
18AQI (US)
23AQI (US)
31AQI (US)
29AQI (US)
28AQI (US)
26AQI (US)
35AQI (US)
34AQI (US)
30AQI (US)
40AQI (US)
65AQI (US)
74AQI (US)
66AQI (US)
31AQI (US)
58AQI (US)
43AQI (US)
39AQI (US)
35AQI (US)
46AQI (US)
No. of days
202638AQI (US)
Highest AQI (US) recorded in
March46AQI (US)
Lowest AQI (US) recorded in
February35AQI (US)
202535AQI (US)
Highest AQI (US) recorded in
December53AQI (US)
Lowest AQI (US) recorded in
May20AQI (US)
202435AQI (US)
Highest AQI (US) recorded in
January79AQI (US)
Lowest AQI (US) recorded in
July19AQI (US)
202333AQI (US)
Highest AQI (US) recorded in
December52AQI (US)
Lowest AQI (US) recorded in
October18AQI (US)
202235AQI (US)
Highest AQI (US) recorded in
March63AQI (US)
Lowest AQI (US) recorded in
August13AQI (US)
202138AQI (US)
Highest AQI (US) recorded in
December66AQI (US)
Lowest AQI (US) recorded in
April21AQI (US)
202020AQI (US)
Highest AQI (US) recorded in
October39AQI (US)
Lowest AQI (US) recorded in
September11AQI (US)
Most & Least Polluted Years Over the Last 7 Years
StCroix's annual 2026 AQI (US) (38) shows an average percentage change of 22.8% (worsened AQI (US)) compared to previous years: 2020 (20), 2021 (38), 2022 (35), 2023 (33), 2024 (35), 2025 (35).