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
23 Feb
Mon
24 Feb
Tue
25 Feb
Wed
26 Feb
Thu
27 Feb
Fri
28 Feb
Sat
1 Mar
Real-time AQI (Monitoring Station in Dali Prefecture)
大理市环境监测站
4229
PM2.5
41
PM10
90
O3
0.5
CO
7
SO2
7
NO2
大理古城
3422
PM2.5
34
PM10
98
O3
0.6
CO
6
SO2
8
NO2
Air quality in the last 12 months (Dali Prefecture)
|
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
|
|
2024/11
|
32
|
36
|
27
|
29
|
27
|
31
|
18
|
17
|
20
|
24
|
24
|
22
|
22
|
23
|
27
|
30
|
30
|
26
|
24
|
24
|
23
|
20
|
20
|
21
|
22
|
21
|
21
|
22
|
24
|
24
|
|
|
2024/10
|
18
|
16
|
20
|
16
|
15
|
18
|
19
|
20
|
23
|
23
|
25
|
33
|
29
|
28
|
28
|
23
|
22
|
29
|
31
|
26
|
27
|
29
|
29
|
22
|
23
|
28
|
33
|
51
|
35
|
29
|
30
|
|
2024/09
|
20
|
22
|
20
|
18
|
17
|
24
|
31
|
30
|
23
|
17
|
22
|
23
|
23
|
25
|
24
|
28
|
23
|
25
|
31
|
32
|
34
|
29
|
27
|
30
|
30
|
26
|
23
|
23
|
19
|
22
|
|
|
2024/08
|
22
|
30
|
19
|
16
|
15
|
17
|
16
|
18
|
33
|
27
|
21
|
31
|
29
|
41
|
39
|
30
|
32
|
31
|
19
|
20
|
21
|
28
|
29
|
23
|
26
|
24
|
24
|
33
|
29
|
29
|
21
|
|
2024/07
|
11
|
14
|
13
|
15
|
15
|
20
|
16
|
16
|
19
|
19
|
14
|
13
|
17
|
19
|
16
|
17
|
24
|
22
|
22
|
29
|
14
|
15
|
16
|
18
|
23
|
20
|
21
|
27
|
24
|
26
|
23
|
|
2024/06
|
40
|
37
|
33
|
35
|
31
|
28
|
23
|
24
|
20
|
24
|
33
|
36
|
15
|
18
|
18
|
23
|
28
|
26
|
29
|
36
|
37
|
36
|
29
|
16
|
16
|
24
|
15
|
15
|
15
|
13
|
|
|
2024/05
|
41
|
42
|
34
|
57
|
54
|
32
|
36
|
38
|
25
|
31
|
34
|
32
|
35
|
31
|
30
|
33
|
34
|
37
|
37
|
20
|
24
|
32
|
25
|
23
|
20
|
16
|
14
|
11
|
21
|
40
|
30
|
|
2024/04
|
33
|
33
|
49
|
44
|
39
|
54
|
41
|
45
|
40
|
45
|
50
|
59
|
50
|
47
|
51
|
58
|
62
|
61
|
51
|
49
|
37
|
52
|
54
|
47
|
37
|
49
|
58
|
57
|
53
|
51
|
|
|
2024/03
|
32
|
30
|
31
|
35
|
34
|
30
|
32
|
27
|
24
|
36
|
35
|
54
|
51
|
47
|
53
|
51
|
57
|
46
|
49
|
55
|
43
|
28
|
21
|
30
|
29
|
34
|
35
|
37
|
37
|
48
|
37
|
|
2024/02
|
38
|
49
|
33
|
31
|
34
|
30
|
29
|
35
|
52
|
69
|
57
|
33
|
32
|
30
|
29
|
32
|
30
|
30
|
30
|
30
|
41
|
45
|
57
|
41
|
36
|
39
|
32
|
31
|
29
|
||
|
1
|
2
|
3
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4
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5
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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