Air Quality
Excellent
No health implications.
2
PM2.5
8
PM10
52
O3
0.2
CO
2
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
28 Apr
51
Good
Wed
29 Apr
57
Good
Thu
30 Apr
75
Good
Fri
1 May
54
Good
Sat
2 May
63
Good
Sun
3 May
35
Excellent
Mon
4 May
17
Excellent
Air quality in the last 12 months (Chicheng)
|
2026/03
|
68
|
79
|
48
|
42
|
49
|
22
|
42
|
60
|
21
|
47
|
23
|
67
|
81
|
30
|
49
|
52
|
79
|
27
|
35
|
36
|
68
|
51
|
68
|
89
|
85
|
55
|
26
|
54
|
39
|
25
|
36
|
|
2026/02
|
14
|
16
|
40
|
52
|
23
|
11
|
10
|
19
|
44
|
47
|
29
|
51
|
55
|
47
|
19
|
21
|
77
|
31
|
51
|
90
|
211
|
32
|
31
|
46
|
83
|
54
|
40
|
50
|
|||
|
2026/01
|
27
|
20
|
35
|
30
|
18
|
26
|
25
|
49
|
63
|
23
|
19
|
37
|
27
|
57
|
97
|
35
|
23
|
29
|
14
|
15
|
14
|
29
|
29
|
24
|
30
|
42
|
22
|
47
|
55
|
61
|
40
|
|
2025/12
|
22
|
21
|
26
|
22
|
37
|
56
|
34
|
29
|
51
|
76
|
34
|
34
|
21
|
44
|
61
|
45
|
30
|
76
|
84
|
17
|
21
|
47
|
42
|
22
|
17
|
27
|
42
|
47
|
21
|
22
|
21
|
|
2025/11
|
14
|
11
|
38
|
47
|
83
|
86
|
48
|
44
|
21
|
23
|
43
|
49
|
21
|
45
|
57
|
19
|
16
|
20
|
32
|
21
|
33
|
47
|
77
|
39
|
33
|
60
|
31
|
66
|
82
|
79
|
|
|
2025/10
|
31
|
40
|
30
|
30
|
33
|
23
|
27
|
15
|
7
|
10
|
22
|
23
|
33
|
41
|
40
|
33
|
9
|
12
|
12
|
15
|
18
|
27
|
39
|
52
|
47
|
13
|
17
|
48
|
94
|
59
|
30
|
|
2025/09
|
18
|
31
|
42
|
39
|
35
|
21
|
18
|
17
|
36
|
36
|
44
|
44
|
40
|
18
|
17
|
16
|
13
|
12
|
17
|
23
|
25
|
28
|
21
|
22
|
24
|
31
|
34
|
26
|
20
|
21
|
|
|
2025/08
|
35
|
43
|
20
|
30
|
17
|
15
|
15
|
21
|
16
|
19
|
32
|
22
|
18
|
28
|
40
|
16
|
24
|
30
|
18
|
18
|
20
|
21
|
20
|
19
|
19
|
21
|
13
|
20
|
30
|
30
|
25
|
|
2025/07
|
27
|
29
|
22
|
31
|
23
|
18
|
30
|
33
|
36
|
31
|
46
|
40
|
20
|
25
|
33
|
15
|
13
|
22
|
45
|
14
|
16
|
28
|
33
|
21
|
19
|
26
|
20
|
19
|
13
|
14
|
24
|
|
2025/06
|
43
|
11
|
10
|
14
|
27
|
21
|
16
|
28
|
29
|
24
|
41
|
62
|
43
|
38
|
11
|
17
|
27
|
42
|
26
|
17
|
18
|
28
|
36
|
45
|
50
|
55
|
57
|
42
|
37
|
34
|
|
|
2025/05
|
18
|
16
|
13
|
19
|
63
|
25
|
52
|
78
|
15
|
35
|
28
|
44
|
51
|
21
|
38
|
62
|
32
|
18
|
22
|
63
|
59
|
54
|
44
|
32
|
41
|
30
|
18
|
34
|
54
|
62
|
42
|
|
2025/04
|
20
|
15
|
43
|
51
|
17
|
41
|
47
|
27
|
28
|
37
|
100
|
61
|
57
|
39
|
35
|
73
|
55
|
11
|
20
|
50
|
60
|
30
|
47
|
18
|
29
|
53
|
12
|
26
|
45
|
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
Air quality source: CNEMC
*: primary pollution