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
17 Dec
Thu
18 Dec
Fri
19 Dec
Sat
20 Dec
Sun
21 Dec
Mon
22 Dec
Tue
23 Dec
Real-time AQI (Monitoring Station in Dali Prefecture)
大理市环境监测站
3524
PM2.5
33
PM10
11
O3
0.8
CO
7
SO2
38
NO2
大理古城
2711
PM2.5
27
PM10
28
O3
0.7
CO
9
SO2
19
NO2
Air quality in the last 12 months (Dali Prefecture)
|
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
|
|
2025/04
|
85
|
67
|
64
|
63
|
60
|
59
|
51
|
58
|
62
|
46
|
41
|
43
|
24
|
28
|
35
|
28
|
30
|
25
|
25
|
23
|
25
|
25
|
39
|
48
|
57
|
57
|
58
|
56
|
37
|
40
|
|
|
2025/03
|
38
|
48
|
33
|
37
|
43
|
48
|
53
|
60
|
56
|
47
|
45
|
63
|
74
|
52
|
42
|
44
|
45
|
56
|
23
|
43
|
62
|
43
|
48
|
34
|
32
|
27
|
31
|
62
|
97
|
75
|
72
|
|
2025/02
|
50
|
51
|
50
|
46
|
38
|
47
|
49
|
33
|
36
|
30
|
29
|
31
|
40
|
52
|
34
|
37
|
39
|
40
|
49
|
34
|
36
|
36
|
38
|
40
|
34
|
25
|
22
|
33
|
|||
|
2025/01
|
27
|
27
|
30
|
29
|
31
|
32
|
25
|
25
|
23
|
25
|
32
|
35
|
32
|
36
|
39
|
40
|
29
|
28
|
26
|
26
|
35
|
46
|
35
|
24
|
28
|
35
|
31
|
45
|
49
|
37
|
38
|
|
2024/12
|
26
|
25
|
22
|
21
|
22
|
21
|
25
|
24
|
21
|
29
|
35
|
35
|
25
|
25
|
22
|
27
|
38
|
20
|
22
|
19
|
21
|
17
|
19
|
24
|
22
|
32
|
38
|
39
|
25
|
21
|
24
|
|
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