Air Quality
Excellent
No health implications.
18
PM2.5
34
PM10
96
O3
0.7
CO
10
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 May
43
Excellent
Thu
15 May
97
Good
Fri
16 May
110
Light
Sat
17 May
54
Good
Sun
18 May
80
Good
Mon
19 May
60
Good
Tue
20 May
25
Excellent
Air quality in the last 12 months (Qian'an)
|
2025/02
|
67
|
80
|
26
|
22
|
26
|
55
|
28
|
26
|
42
|
80
|
108
|
52
|
83
|
91
|
110
|
48
|
27
|
52
|
48
|
45
|
38
|
40
|
33
|
61
|
68
|
74
|
129
|
193
|
|||
|
2025/01
|
70
|
36
|
52
|
86
|
82
|
45
|
32
|
24
|
29
|
44
|
60
|
54
|
63
|
45
|
36
|
58
|
79
|
103
|
64
|
80
|
75
|
61
|
76
|
101
|
139
|
103
|
23
|
47
|
101
|
48
|
51
|
|
2024/12
|
94
|
34
|
56
|
39
|
52
|
36
|
32
|
42
|
66
|
63
|
46
|
90
|
55
|
37
|
56
|
62
|
40
|
48
|
68
|
64
|
37
|
46
|
52
|
79
|
105
|
33
|
34
|
48
|
84
|
97
|
58
|
|
2024/11
|
100
|
58
|
76
|
36
|
55
|
54
|
81
|
94
|
99
|
103
|
59
|
62
|
53
|
43
|
52
|
47
|
36
|
41
|
58
|
78
|
52
|
48
|
52
|
86
|
61
|
21
|
29
|
37
|
50
|
60
|
|
|
2024/10
|
21
|
24
|
44
|
62
|
76
|
60
|
27
|
44
|
67
|
40
|
65
|
75
|
78
|
92
|
70
|
41
|
64
|
45
|
25
|
30
|
46
|
41
|
55
|
99
|
117
|
119
|
72
|
70
|
89
|
66
|
99
|
|
2024/09
|
25
|
24
|
36
|
49
|
28
|
33
|
37
|
49
|
60
|
22
|
28
|
36
|
40
|
29
|
31
|
55
|
51
|
44
|
49
|
24
|
17
|
23
|
42
|
59
|
64
|
41
|
53
|
56
|
52
|
20
|
|
|
2024/08
|
37
|
44
|
50
|
31
|
33
|
51
|
44
|
41
|
44
|
36
|
54
|
41
|
23
|
29
|
37
|
52
|
60
|
41
|
23
|
13
|
26
|
33
|
26
|
26
|
42
|
24
|
30
|
43
|
49
|
56
|
44
|
|
2024/07
|
42
|
51
|
36
|
55
|
64
|
47
|
42
|
41
|
58
|
62
|
74
|
62
|
54
|
55
|
45
|
40
|
33
|
44
|
49
|
44
|
46
|
33
|
54
|
53
|
23
|
23
|
27
|
30
|
47
|
31
|
35
|
|
2024/06
|
48
|
50
|
49
|
54
|
55
|
60
|
54
|
48
|
73
|
69
|
71
|
58
|
56
|
38
|
32
|
49
|
63
|
61
|
57
|
46
|
45
|
85
|
128
|
31
|
52
|
62
|
63
|
53
|
44
|
43
|
|
|
2024/05
|
57
|
67
|
68
|
63
|
77
|
71
|
67
|
75
|
85
|
97
|
215
|
37
|
62
|
68
|
35
|
52
|
68
|
67
|
43
|
37
|
55
|
79
|
61
|
27
|
30
|
32
|
40
|
53
|
61
|
58
|
32
|
|
2024/04
|
74
|
59
|
52
|
58
|
72
|
94
|
81
|
112
|
64
|
67
|
108
|
119
|
61
|
45
|
113
|
55
|
74
|
86
|
59
|
64
|
72
|
68
|
24
|
42
|
93
|
90
|
66
|
41
|
32
|
50
|
|
|
2024/03
|
38
|
60
|
52
|
61
|
68
|
63
|
75
|
29
|
64
|
93
|
128
|
82
|
91
|
123
|
93
|
123
|
50
|
74
|
69
|
39
|
77
|
59
|
74
|
61
|
67
|
78
|
92
|
216
|
92
|
76
|
64
|
|
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