Air Quality
Excellent
No health implications.
9
PM2.5
25
PM10
64
O3
0.5
CO
5
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
11 Feb
54
Good
Thu
12 Feb
51
Good
Fri
13 Feb
49
Excellent
Sat
14 Feb
61
Good
Sun
15 Feb
62
Good
Mon
16 Feb
74
Good
Tue
17 Feb
21
Excellent
Air quality in the last 12 months (Tunchang)
|
2026/01
|
32
|
43
|
35
|
39
|
44
|
55
|
47
|
40
|
45
|
42
|
48
|
45
|
53
|
48
|
36
|
37
|
37
|
42
|
31
|
37
|
48
|
51
|
44
|
39
|
21
|
26
|
31
|
38
|
31
|
30
|
29
|
|
2025/12
|
35
|
21
|
31
|
49
|
40
|
48
|
39
|
60
|
51
|
40
|
43
|
31
|
35
|
26
|
45
|
37
|
47
|
48
|
43
|
36
|
30
|
41
|
34
|
33
|
31
|
35
|
39
|
39
|
38
|
34
|
43
|
|
2025/11
|
39
|
39
|
32
|
19
|
20
|
25
|
15
|
17
|
27
|
42
|
34
|
28
|
46
|
36
|
38
|
38
|
36
|
50
|
26
|
34
|
41
|
43
|
46
|
50
|
47
|
52
|
51
|
54
|
58
|
31
|
|
|
2025/10
|
15
|
13
|
12
|
16
|
20
|
13
|
20
|
17
|
20
|
23
|
21
|
15
|
9
|
11
|
15
|
21
|
23
|
30
|
34
|
29
|
19
|
18
|
21
|
24
|
37
|
41
|
33
|
31
|
30
|
18
|
37
|
|
2025/09
|
13
|
16
|
17
|
15
|
14
|
14
|
24
|
20
|
18
|
14
|
15
|
12
|
15
|
12
|
20
|
14
|
14
|
16
|
26
|
22
|
23
|
15
|
24
|
18
|
19
|
16
|
24
|
18
|
23
|
17
|
|
|
2025/08
|
29
|
31
|
32
|
27
|
27
|
36
|
31
|
24
|
22
|
21
|
18
|
20
|
18
|
18
|
14
|
10
|
12
|
8
|
13
|
20
|
20
|
14
|
20
|
22
|
17
|
13
|
14
|
14
|
15
|
21
|
18
|
|
2025/07
|
15
|
13
|
10
|
13
|
15
|
17
|
15
|
22
|
23
|
25
|
23
|
20
|
25
|
27
|
29
|
24
|
20
|
22
|
16
|
14
|
9
|
14
|
16
|
13
|
16
|
19
|
18
|
14
|
17
|
17
|
20
|
|
2025/06
|
19
|
18
|
26
|
25
|
16
|
17
|
20
|
22
|
21
|
26
|
17
|
13
|
12
|
11
|
15
|
16
|
18
|
14
|
13
|
14
|
15
|
11
|
12
|
14
|
9
|
10
|
13
|
13
|
17
|
15
|
|
|
2025/05
|
21
|
20
|
26
|
24
|
19
|
21
|
19
|
16
|
22
|
15
|
21
|
35
|
20
|
12
|
11
|
17
|
14
|
17
|
16
|
16
|
17
|
14
|
15
|
14
|
24
|
32
|
24
|
16
|
14
|
13
|
12
|
|
2025/04
|
17
|
29
|
29
|
31
|
33
|
16
|
29
|
30
|
31
|
33
|
31
|
30
|
128
|
156
|
125
|
102
|
82
|
46
|
33
|
28
|
24
|
26
|
24
|
25
|
27
|
20
|
17
|
23
|
27
|
25
|
|
|
2025/03
|
25
|
23
|
28
|
28
|
29
|
13
|
20
|
14
|
29
|
33
|
30
|
24
|
20
|
19
|
26
|
15
|
29
|
35
|
45
|
47
|
41
|
40
|
37
|
42
|
41
|
35
|
38
|
36
|
17
|
9
|
15
|
|
2025/02
|
28
|
18
|
28
|
24
|
25
|
33
|
40
|
29
|
51
|
40
|
27
|
16
|
25
|
23
|
16
|
20
|
27
|
43
|
42
|
32
|
34
|
21
|
18
|
25
|
22
|
30
|
31
|
25
|
|||
|
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