Air Quality
Excellent
No health implications.
3
PM2.5
8
PM10
36
O3
0.4
CO
9
SO2
20
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 May
39
Excellent
Thu
14 May
37
Excellent
Fri
15 May
43
Excellent
Sat
16 May
46
Excellent
Sun
17 May
45
Excellent
Mon
18 May
30
Excellent
Tue
19 May
47
Excellent
Air quality in the last 12 months (Litang)
|
2026/04
|
22
|
21
|
23
|
21
|
22
|
27
|
24
|
29
|
30
|
34
|
31
|
31
|
33
|
33
|
29
|
25
|
26
|
24
|
25
|
27
|
24
|
27
|
28
|
25
|
26
|
24
|
30
|
29
|
22
|
18
|
|
|
2026/03
|
25
|
29
|
25
|
26
|
25
|
24
|
29
|
29
|
26
|
23
|
22
|
23
|
30
|
25
|
23
|
21
|
26
|
27
|
25
|
24
|
23
|
26
|
26
|
22
|
26
|
26
|
26
|
22
|
26
|
22
|
24
|
|
2026/02
|
17
|
17
|
17
|
18
|
19
|
21
|
15
|
12
|
20
|
20
|
18
|
15
|
15
|
15
|
18
|
18
|
19
|
35
|
14
|
12
|
11
|
13
|
13
|
13
|
10
|
12
|
12
|
16
|
|||
|
2026/01
|
25
|
17
|
17
|
19
|
19
|
16
|
14
|
20
|
24
|
21
|
19
|
25
|
22
|
28
|
22
|
23
|
20
|
27
|
31
|
27
|
25
|
21
|
23
|
23
|
23
|
27
|
17
|
20
|
20
|
15
|
16
|
|
2025/12
|
25
|
27
|
25
|
24
|
24
|
27
|
27
|
24
|
23
|
28
|
25
|
35
|
28
|
26
|
24
|
26
|
26
|
23
|
25
|
25
|
30
|
36
|
26
|
26
|
24
|
27
|
24
|
29
|
27
|
27
|
30
|
|
2025/11
|
11
|
10
|
12
|
15
|
19
|
13
|
24
|
21
|
15
|
15
|
16
|
15
|
14
|
19
|
24
|
22
|
24
|
21
|
20
|
20
|
19
|
21
|
21
|
23
|
23
|
21
|
25
|
25
|
24
|
25
|
|
|
2025/10
|
13
|
15
|
15
|
12
|
12
|
14
|
15
|
12
|
13
|
11
|
14
|
14
|
14
|
15
|
16
|
16
|
18
|
15
|
13
|
13
|
17
|
15
|
15
|
14
|
13
|
9
|
15
|
18
|
15
|
14
|
15
|
|
2025/09
|
13
|
14
|
11
|
11
|
11
|
10
|
10
|
10
|
17
|
10
|
12
|
14
|
23
|
21
|
20
|
12
|
12
|
13
|
13
|
12
|
11
|
13
|
13
|
19
|
22
|
20
|
19
|
13
|
12
|
12
|
|
|
2025/08
|
18
|
21
|
20
|
20
|
19
|
21
|
19
|
16
|
13
|
13
|
16
|
19
|
20
|
18
|
14
|
16
|
16
|
14
|
12
|
12
|
13
|
13
|
14
|
12
|
11
|
11
|
15
|
13
|
13
|
12
|
11
|
|
2025/07
|
20
|
13
|
14
|
13
|
11
|
13
|
13
|
18
|
17
|
21
|
20
|
14
|
16
|
15
|
17
|
21
|
24
|
25
|
14
|
15
|
14
|
15
|
14
|
15
|
18
|
13
|
17
|
16
|
18
|
14
|
14
|
|
2025/06
|
11
|
12
|
16
|
17
|
17
|
15
|
15
|
15
|
16
|
19
|
17
|
19
|
23
|
19
|
21
|
21
|
19
|
16
|
9
|
11
|
14
|
17
|
19
|
12
|
14
|
15
|
16
|
19
|
20
|
24
|
|
|
2025/05
|
21
|
17
|
12
|
15
|
16
|
10
|
12
|
29
|
28
|
29
|
29
|
24
|
22
|
24
|
10
|
11
|
11
|
13
|
14
|
12
|
16
|
24
|
18
|
13
|
18
|
17
|
10
|
12
|
12
|
12
|
10
|
|
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
Air quality source: CNEMC
*: primary pollution