Air Quality
Excellent
No health implications.
13
PM2.5
19
PM10
100
O3
0.4
CO
7
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Mar
91
Good
Fri
13 Mar
72
Good
Sat
14 Mar
58
Good
Sun
15 Mar
60
Good
Mon
16 Mar
66
Good
Tue
17 Mar
67
Good
Wed
18 Mar
27
Excellent
Air quality in the last 12 months (Zhang County)
|
2026/02
|
85
|
79
|
76
|
70
|
66
|
70
|
65
|
61
|
59
|
82
|
72
|
77
|
72
|
66
|
75
|
66
|
101
|
59
|
58
|
53
|
76
|
140
|
122
|
76
|
80
|
87
|
71
|
64
|
|||
|
2026/01
|
80
|
61
|
66
|
76
|
62
|
73
|
70
|
67
|
67
|
67
|
72
|
73
|
70
|
80
|
81
|
79
|
66
|
83
|
60
|
61
|
63
|
70
|
62
|
57
|
358
|
355
|
173
|
133
|
79
|
79
|
87
|
|
2025/12
|
74
|
68
|
61
|
69
|
70
|
68
|
74
|
69
|
73
|
74
|
68
|
82
|
71
|
69
|
78
|
83
|
70
|
63
|
73
|
44
|
54
|
65
|
56
|
61
|
55
|
61
|
72
|
82
|
78
|
75
|
72
|
|
2025/11
|
59
|
49
|
44
|
37
|
36
|
29
|
86
|
72
|
71
|
49
|
55
|
60
|
61
|
62
|
61
|
65
|
56
|
52
|
54
|
65
|
67
|
69
|
76
|
93
|
65
|
96
|
105
|
69
|
67
|
72
|
|
|
2025/10
|
30
|
29
|
32
|
38
|
53
|
27
|
31
|
24
|
28
|
27
|
28
|
34
|
39
|
43
|
42
|
43
|
31
|
45
|
44
|
36
|
27
|
32
|
31
|
34
|
43
|
47
|
53
|
49
|
56
|
61
|
66
|
|
2025/09
|
32
|
49
|
48
|
50
|
56
|
75
|
64
|
50
|
38
|
34
|
32
|
36
|
41
|
39
|
48
|
75
|
33
|
25
|
33
|
33
|
28
|
33
|
37
|
45
|
44
|
37
|
36
|
38
|
44
|
43
|
|
|
2025/08
|
40
|
31
|
31
|
24
|
25
|
31
|
28
|
28
|
26
|
29
|
40
|
36
|
36
|
37
|
37
|
35
|
33
|
29
|
26
|
49
|
26
|
30
|
25
|
33
|
27
|
26
|
25
|
23
|
27
|
35
|
35
|
|
2025/07
|
32
|
26
|
23
|
21
|
27
|
27
|
25
|
24
|
31
|
32
|
27
|
28
|
29
|
28
|
39
|
47
|
41
|
29
|
69
|
28
|
26
|
26
|
24
|
25
|
23
|
26
|
28
|
28
|
30
|
24
|
30
|
|
2025/06
|
37
|
43
|
36
|
35
|
41
|
45
|
44
|
50
|
32
|
40
|
41
|
39
|
36
|
44
|
60
|
43
|
47
|
42
|
39
|
44
|
37
|
23
|
28
|
26
|
26
|
32
|
26
|
33
|
36
|
26
|
|
|
2025/05
|
57
|
86
|
111
|
119
|
68
|
103
|
73
|
61
|
60
|
48
|
44
|
59
|
68
|
53
|
42
|
53
|
95
|
51
|
61
|
52
|
56
|
83
|
57
|
43
|
30
|
50
|
33
|
28
|
30
|
84
|
64
|
|
2025/04
|
99
|
96
|
80
|
100
|
87
|
64
|
51
|
87
|
104
|
72
|
104
|
373
|
117
|
72
|
62
|
117
|
73
|
220
|
138
|
92
|
98
|
87
|
56
|
54
|
55
|
40
|
54
|
54
|
56
|
87
|
|
|
2025/03
|
58
|
53
|
51
|
54
|
48
|
50
|
65
|
64
|
52
|
46
|
156
|
98
|
86
|
45
|
51
|
52
|
49
|
45
|
53
|
58
|
54
|
53
|
61
|
45
|
58
|
353
|
123
|
87
|
81
|
83
|
77
|
|
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