Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 May
Sat
23 May
Sun
24 May
Mon
25 May
Tue
26 May
Wed
27 May
Thu
28 May
Real-time AQI (Monitoring Station in Dali Prefecture)
大理市环境监测站
3219
PM2.5
32
PM10
88
O3
0.4
CO
4
SO2
6
NO2
大理古城
2616
PM2.5
26
PM10
77
O3
0.5
CO
8
SO2
5
NO2
Air quality in the last 12 months (Dali Prefecture)
|
2026/04
|
31
|
32
|
34
|
34
|
42
|
33
|
32
|
31
|
28
|
30
|
37
|
36
|
49
|
57
|
61
|
49
|
39
|
45
|
50
|
37
|
45
|
44
|
39
|
42
|
54
|
50
|
38
|
30
|
27
|
23
|
|
|
2026/03
|
50
|
52
|
46
|
46
|
54
|
79
|
71
|
71
|
57
|
30
|
44
|
63
|
44
|
29
|
27
|
36
|
34
|
32
|
40
|
33
|
34
|
32
|
29
|
29
|
33
|
31
|
39
|
51
|
31
|
30
|
30
|
|
2026/02
|
24
|
21
|
21
|
24
|
23
|
23
|
25
|
25
|
25
|
25
|
19
|
19
|
19
|
19
|
33
|
43
|
55
|
39
|
31
|
26
|
25
|
29
|
35
|
35
|
47
|
54
|
43
|
48
|
|||
|
2026/01
|
34
|
25
|
24
|
21
|
22
|
26
|
24
|
27
|
30
|
30
|
31
|
28
|
28
|
32
|
28
|
26
|
31
|
32
|
27
|
26
|
26
|
23
|
27
|
31
|
29
|
29
|
30
|
32
|
30
|
26
|
26
|
|
2025/12
|
34
|
31
|
28
|
25
|
25
|
25
|
28
|
26
|
29
|
30
|
30
|
30
|
32
|
32
|
30
|
26
|
28
|
30
|
30
|
30
|
27
|
29
|
30
|
30
|
30
|
28
|
28
|
31
|
30
|
28
|
30
|
|
2025/11
|
18
|
18
|
12
|
16
|
12
|
15
|
17
|
19
|
19
|
19
|
17
|
19
|
21
|
31
|
26
|
26
|
24
|
26
|
21
|
21
|
19
|
22
|
22
|
23
|
36
|
39
|
33
|
36
|
35
|
35
|
|
|
2025/10
|
15
|
14
|
14
|
15
|
16
|
18
|
19
|
13
|
15
|
14
|
16
|
15
|
16
|
17
|
18
|
19
|
13
|
13
|
12
|
14
|
16
|
19
|
22
|
18
|
16
|
18
|
19
|
21
|
21
|
21
|
21
|
|
2025/09
|
21
|
19
|
20
|
20
|
24
|
26
|
21
|
19
|
22
|
22
|
20
|
19
|
18
|
17
|
18
|
15
|
17
|
18
|
16
|
15
|
18
|
19
|
19
|
16
|
23
|
20
|
14
|
16
|
15
|
12
|
|
|
2025/08
|
21
|
21
|
18
|
18
|
18
|
23
|
21
|
16
|
17
|
18
|
16
|
20
|
17
|
24
|
28
|
29
|
20
|
21
|
23
|
21
|
17
|
16
|
16
|
17
|
18
|
23
|
22
|
19
|
20
|
24
|
24
|
|
2025/07
|
20
|
23
|
17
|
17
|
16
|
18
|
17
|
17
|
18
|
22
|
22
|
25
|
29
|
31
|
22
|
27
|
28
|
26
|
29
|
28
|
22
|
23
|
22
|
20
|
18
|
18
|
20
|
21
|
24
|
26
|
20
|
|
2025/06
|
15
|
14
|
15
|
34
|
36
|
32
|
22
|
24
|
26
|
21
|
26
|
31
|
32
|
31
|
20
|
16
|
17
|
15
|
13
|
16
|
17
|
13
|
15
|
14
|
18
|
14
|
17
|
17
|
19
|
17
|
|
|
2025/05
|
30
|
25
|
29
|
21
|
26
|
27
|
24
|
25
|
25
|
39
|
25
|
30
|
32
|
29
|
35
|
32
|
31
|
23
|
27
|
28
|
27
|
25
|
37
|
22
|
17
|
18
|
14
|
13
|
13
|
13
|
14
|
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
31
|
- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
*: primary pollution