City Epa, Lhasa, Tibet, China 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
City Epa, Lhasa, Tibet, China
AQI Trends: Highest and Lowest
Same Day Analysis (17th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 50 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Sep - 18th Sep 2025
City Epa, Lhasa, Tibet, China
5 AM17th Sep 2025
6 PM
4 AM18th Sep 2025
96AQI
27AQI
56AQI
38AQI
In the last 24 hours,
City Epa's AQI reached its highest point of 96 at 10 AM during the Day, while the lowest point, 27, was recorded at 4 PM during the Day between 17th Sep and 18th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
City Epa, Lhasa, Tibet, China
14°C6/22°C
14°C6/21°C
12°C8/20°C
11°C6/18°C
12°C7/19°C
13°C6/19°C
14°C9/21°C
13°C7/19°C
10°C5/16°C
9°C5/15°C
7°C2/10°C
10°C6/17°C
10°C5/18°C
11°C3/18°C
11°C4/19°C
14°C7/21°C
15°C10/22°C
14°C9/22°C
12°C6/20°C
11°C6/20°C
12°C7/19°C
13°C7/20°C
14°C7/21°C
14°C11/19°C
12°C9/20°C
13°C6/21°C
11°C2/18°C
10°C4/14°C
7°C2/13°C
13°C10/18°C
--°C/°C
50AQI
33AQI
51AQI
41AQI
2025 Days Vs Air Quality
City Epa, Lhasa, Tibet, China
79%
205
21%
55
Total number of days with different AQI categories in last 261 days in 2025 (104 days remaining)
Under WHO’s Safe Air Quality Limits: 79%
Health Risk Level:
Low
In 2025, 79% of 261 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
City Epa, Lhasa, Tibet, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
63AQI
69AQI
79AQI
61AQI
67AQI
68AQI
63AQI
56AQI
63AQI
61AQI
63AQI
50AQI
53AQI
54AQI
68AQI
69AQI
68AQI
59AQI
56AQI
60AQI
59AQI
60AQI
65AQI
71AQI
48AQI
44AQI
48AQI
55AQI
62AQI
63AQI
70AQI
49AQI
61AQI
49AQI
47AQI
60AQI
52AQI
50AQI
52AQI
46AQI
48AQI
39AQI
47AQI
42AQI
27AQI
23AQI
18AQI
17AQI
16AQI
17AQI
17AQI
22AQI
16AQI
18AQI
18AQI
18AQI
22AQI
23AQI
37AQI
17AQI
17AQI
20AQI
28AQI
23AQI
22AQI
21AQI
25AQI
19AQI
24AQI
26AQI
20AQI
22AQI
37AQI
32AQI
37AQI
34AQI
38AQI
44AQI
39AQI
55AQI
41AQI
41AQI
36AQI
34AQI
44AQI
41AQI
47AQI
57AQI
55AQI
46AQI
50AQI
55AQI
52AQI
56AQI
54AQI
50AQI
50AQI
49AQI
43AQI
47AQI
37AQI
39AQI
34AQI
39AQI
38AQI
54AQI
42AQI
51AQI
46AQI
38AQI
37AQI
40AQI
41AQI
39AQI
43AQI
48AQI
43AQI
50AQI
45AQI
51AQI
39AQI
40AQI
41AQI
39AQI
39AQI
42AQI
50AQI
54AQI
51AQI
54AQI
47AQI
43AQI
41AQI
40AQI
37AQI
39AQI
41AQI
34AQI
39AQI
35AQI
53AQI
46AQI
45AQI
52AQI
39AQI
37AQI
42AQI
43AQI
41AQI
35AQI
33AQI
32AQI
32AQI
34AQI
57AQI
33AQI
39AQI
30AQI
44AQI
46AQI
52AQI
56AQI
55AQI
46AQI
44AQI
52AQI
42AQI
41AQI
42AQI
38AQI
40AQI
44AQI
37AQI
37AQI
37AQI
48AQI
49AQI
49AQI
52AQI
42AQI
40AQI
39AQI
37AQI
42AQI
39AQI
39AQI
42AQI
43AQI
48AQI
51AQI
48AQI
44AQI
45AQI
41AQI
41AQI
40AQI
40AQI
39AQI
43AQI
42AQI
43AQI
36AQI
36AQI
36AQI
36AQI
34AQI
31AQI
30AQI
34AQI
32AQI
37AQI
35AQI
41AQI
45AQI
45AQI
46AQI
45AQI
47AQI
46AQI
40AQI
40AQI
37AQI
38AQI
47AQI
50AQI
47AQI
48AQI
46AQI
45AQI
43AQI
41AQI
41AQI
40AQI
40AQI
39AQI
39AQI
42AQI
45AQI
44AQI
44AQI
44AQI
49AQI
48AQI
47AQI
48AQI
51AQI
39AQI
41AQI
39AQI
45AQI
43AQI
47AQI
56AQI
50AQI
50AQI
48AQI
49AQI
46AQI
39AQI
50AQI
61AQI
34AQI
34AQI
45AQI
42AQI
43AQI
39AQI
44AQI
46AQI
No. of days
202543AQI
Highest AQI recorded in
January61AQI
Lowest AQI recorded in
March34AQI
202442AQI
Highest AQI recorded in
December70AQI
Lowest AQI recorded in
July26AQI
202351AQI
Highest AQI recorded in
December67AQI
Lowest AQI recorded in
August35AQI
202248AQI
Highest AQI recorded in
December67AQI
Lowest AQI recorded in
October31AQI
202147AQI
Highest AQI recorded in
December64AQI
Lowest AQI recorded in
August32AQI
202048AQI
Highest AQI recorded in
December68AQI
Lowest AQI recorded in
July37AQI
Most & Least Polluted Years Over the Last 6 Years
City Epa's annual 2025 AQI (43) shows an average percentage change of -8.5% (improved AQI) compared to previous years: 2020 (48), 2021 (47), 2022 (48), 2023 (51), 2024 (42).