Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
15
PM2.5
54
*
PM10
85
O3
0.5
CO
12
SO2
14
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
7 Sep
78
Good
Mon
8 Sep
64
Good
Tue
9 Sep
75
Good
Wed
10 Sep
52
Good
Thu
11 Sep
51
Good
Fri
12 Sep
50
Excellent
Sat
13 Sep
48
Excellent
Air quality in the last 12 months (Zhangjiachuan)
|
2025/08
|
37
|
34
|
37
|
30
|
28
|
35
|
35
|
28
|
22
|
24
|
38
|
38
|
36
|
35
|
36
|
27
|
25
|
23
|
26
|
59
|
33
|
35
|
19
|
24
|
27
|
33
|
20
|
21
|
23
|
25
|
29
|
|
2025/07
|
26
|
25
|
17
|
19
|
24
|
26
|
21
|
21
|
24
|
31
|
27
|
32
|
33
|
28
|
39
|
42
|
40
|
31
|
58
|
29
|
24
|
30
|
29
|
23
|
20
|
20
|
26
|
29
|
34
|
28
|
36
|
|
2025/06
|
39
|
41
|
41
|
32
|
38
|
41
|
36
|
39
|
40
|
42
|
46
|
45
|
38
|
58
|
70
|
45
|
44
|
35
|
46
|
40
|
31
|
28
|
27
|
30
|
25
|
26
|
22
|
31
|
33
|
18
|
|
|
2025/05
|
80
|
74
|
94
|
84
|
112
|
119
|
72
|
83
|
84
|
50
|
43
|
56
|
60
|
68
|
56
|
66
|
117
|
72
|
61
|
58
|
57
|
97
|
48
|
38
|
33
|
43
|
32
|
42
|
36
|
59
|
51
|
|
2025/04
|
102
|
95
|
87
|
110
|
89
|
74
|
51
|
94
|
104
|
76
|
170
|
365
|
100
|
64
|
53
|
121
|
76
|
222
|
135
|
74
|
115
|
107
|
64
|
56
|
58
|
44
|
48
|
48
|
61
|
105
|
|
|
2025/03
|
80
|
47
|
40
|
44
|
53
|
49
|
61
|
64
|
50
|
43
|
181
|
107
|
85
|
44
|
51
|
52
|
48
|
38
|
47
|
59
|
57
|
57
|
64
|
42
|
50
|
352
|
137
|
113
|
83
|
79
|
78
|
|
2025/02
|
94
|
65
|
39
|
47
|
51
|
54
|
85
|
69
|
62
|
53
|
73
|
86
|
68
|
53
|
55
|
76
|
67
|
58
|
76
|
76
|
82
|
67
|
49
|
60
|
62
|
52
|
44
|
51
|
|||
|
2025/01
|
71
|
63
|
79
|
68
|
59
|
64
|
56
|
51
|
57
|
57
|
67
|
67
|
62
|
59
|
52
|
63
|
80
|
69
|
64
|
61
|
73
|
88
|
148
|
166
|
68
|
79
|
74
|
89
|
132
|
104
|
89
|
|
2024/12
|
65
|
68
|
65
|
62
|
55
|
59
|
49
|
55
|
56
|
71
|
69
|
62
|
45
|
53
|
57
|
70
|
65
|
63
|
64
|
66
|
63
|
62
|
60
|
66
|
63
|
73
|
57
|
57
|
66
|
55
|
56
|
|
2024/11
|
45
|
41
|
48
|
52
|
51
|
50
|
62
|
67
|
66
|
57
|
52
|
66
|
61
|
45
|
61
|
50
|
38
|
27
|
38
|
48
|
48
|
51
|
71
|
44
|
46
|
51
|
61
|
63
|
48
|
62
|
|
|
2024/10
|
37
|
31
|
42
|
36
|
52
|
46
|
38
|
54
|
45
|
43
|
46
|
45
|
46
|
43
|
34
|
50
|
46
|
48
|
32
|
28
|
29
|
33
|
44
|
50
|
60
|
53
|
34
|
42
|
49
|
47
|
41
|
|
2024/09
|
42
|
38
|
34
|
37
|
18
|
26
|
18
|
31
|
25
|
27
|
32
|
38
|
26
|
28
|
38
|
35
|
39
|
41
|
37
|
37
|
30
|
37
|
48
|
50
|
30
|
28
|
68
|
79
|
38
|
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