Air Quality
Excellent
No health implications.
14
PM2.5
29
PM10
120
O3
0.4
CO
9
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 Sep
58
Good
Mon
14 Sep
49
Excellent
Tue
15 Sep
49
Excellent
Wed
16 Sep
48
Excellent
Thu
17 Sep
50
Excellent
Fri
18 Sep
55
Good
Sat
19 Sep
24
Excellent
Air quality in the last 12 months (Zhangjiachuan)
|
2026/08
|
30
|
30
|
30
|
31
|
29
|
28
|
27
|
29
|
33
|
36
|
32
|
32
|
33
|
31
|
32
|
35
|
35
|
27
|
29
|
27
|
31
|
35
|
34
|
26
|
31
|
43
|
26
|
30
|
30
|
33
|
38
|
|
2026/07
|
43
|
32
|
31
|
30
|
35
|
38
|
40
|
38
|
42
|
44
|
22
|
27
|
26
|
32
|
31
|
28
|
32
|
70
|
38
|
46
|
40
|
41
|
39
|
44
|
45
|
37
|
22
|
28
|
28
|
51
|
29
|
|
2026/06
|
52
|
49
|
58
|
61
|
49
|
54
|
53
|
41
|
38
|
37
|
37
|
35
|
42
|
39
|
37
|
40
|
37
|
32
|
32
|
28
|
23
|
25
|
27
|
33
|
49
|
43
|
40
|
40
|
33
|
44
|
|
|
2026/05
|
35
|
60
|
45
|
45
|
43
|
61
|
48
|
36
|
47
|
62
|
56
|
49
|
34
|
87
|
76
|
30
|
31
|
37
|
36
|
34
|
94
|
115
|
58
|
24
|
74
|
79
|
75
|
55
|
47
|
42
|
52
|
|
2026/04
|
49
|
47
|
86
|
81
|
72
|
67
|
58
|
52
|
61
|
62
|
60
|
54
|
57
|
56
|
53
|
52
|
51
|
59
|
227
|
86
|
35
|
35
|
55
|
65
|
63
|
57
|
52
|
53
|
59
|
53
|
|
|
2026/03
|
40
|
32
|
52
|
66
|
66
|
64
|
57
|
36
|
47
|
49
|
54
|
101
|
374
|
70
|
66
|
67
|
55
|
87
|
89
|
75
|
75
|
96
|
93
|
77
|
66
|
51
|
52
|
43
|
49
|
31
|
46
|
|
2026/02
|
97
|
83
|
75
|
68
|
64
|
72
|
68
|
57
|
64
|
105
|
86
|
74
|
67
|
77
|
59
|
43
|
82
|
60
|
53
|
52
|
121
|
204
|
151
|
76
|
76
|
83
|
65
|
34
|
|||
|
2026/01
|
59
|
64
|
76
|
59
|
49
|
46
|
53
|
56
|
52
|
61
|
65
|
62
|
63
|
87
|
83
|
73
|
73
|
81
|
52
|
48
|
53
|
60
|
68
|
80
|
383
|
254
|
139
|
128
|
104
|
82
|
107
|
|
2025/12
|
70
|
60
|
57
|
56
|
64
|
60
|
59
|
61
|
78
|
75
|
73
|
74
|
86
|
68
|
66
|
66
|
59
|
67
|
61
|
45
|
53
|
66
|
66
|
62
|
49
|
59
|
63
|
69
|
67
|
81
|
76
|
|
2025/11
|
58
|
57
|
54
|
47
|
64
|
53
|
78
|
68
|
68
|
64
|
60
|
56
|
58
|
59
|
53
|
61
|
48
|
40
|
48
|
61
|
61
|
57
|
62
|
74
|
57
|
133
|
109
|
70
|
66
|
76
|
|
|
2025/10
|
32
|
24
|
23
|
24
|
50
|
23
|
16
|
19
|
18
|
19
|
21
|
26
|
33
|
36
|
36
|
28
|
25
|
38
|
38
|
21
|
23
|
27
|
29
|
26
|
35
|
45
|
45
|
42
|
49
|
57
|
60
|
|
2025/09
|
32
|
52
|
60
|
43
|
51
|
56
|
51
|
39
|
41
|
37
|
23
|
30
|
35
|
33
|
58
|
55
|
28
|
20
|
20
|
23
|
20
|
21
|
24
|
36
|
40
|
48
|
36
|
34
|
45
|
47
|
|
|
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