Air Quality
Excellent
No health implications.
4
PM2.5
14
PM10
83
O3
0.4
CO
3
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 May
54
Good
Mon
5 May
62
Good
Tue
6 May
61
Good
Wed
7 May
77
Good
Thu
8 May
58
Good
Fri
9 May
63
Good
Sat
10 May
25
Excellent
Air quality in the last 12 months (Qian'an)
|
2025/02
|
95
|
125
|
61
|
52
|
67
|
71
|
34
|
31
|
51
|
82
|
133
|
85
|
41
|
51
|
88
|
37
|
37
|
37
|
42
|
51
|
52
|
63
|
53
|
53
|
85
|
42
|
69
|
76
|
|||
|
2025/01
|
56
|
40
|
44
|
87
|
146
|
129
|
52
|
45
|
52
|
63
|
87
|
132
|
106
|
63
|
41
|
38
|
53
|
94
|
75
|
108
|
125
|
110
|
140
|
183
|
179
|
199
|
111
|
63
|
63
|
48
|
76
|
|
2024/12
|
53
|
24
|
29
|
26
|
33
|
40
|
40
|
49
|
68
|
58
|
39
|
56
|
95
|
35
|
37
|
50
|
54
|
60
|
57
|
85
|
66
|
49
|
49
|
40
|
53
|
38
|
37
|
43
|
66
|
98
|
51
|
|
2024/11
|
44
|
56
|
54
|
23
|
23
|
45
|
56
|
162
|
129
|
74
|
70
|
50
|
118
|
99
|
173
|
50
|
39
|
43
|
68
|
51
|
40
|
51
|
138
|
169
|
136
|
55
|
26
|
44
|
39
|
53
|
|
|
2024/10
|
24
|
27
|
32
|
40
|
43
|
29
|
55
|
45
|
47
|
21
|
29
|
34
|
58
|
53
|
22
|
30
|
42
|
34
|
28
|
31
|
42
|
36
|
50
|
56
|
48
|
42
|
35
|
43
|
65
|
58
|
70
|
|
2024/09
|
13
|
17
|
18
|
25
|
17
|
21
|
26
|
30
|
40
|
24
|
27
|
30
|
27
|
21
|
21
|
30
|
29
|
27
|
30
|
18
|
27
|
37
|
29
|
39
|
25
|
37
|
37
|
36
|
52
|
25
|
|
|
2024/08
|
12
|
14
|
18
|
21
|
15
|
19
|
27
|
20
|
22
|
20
|
13
|
13
|
20
|
22
|
23
|
31
|
31
|
31
|
17
|
16
|
12
|
13
|
25
|
31
|
25
|
18
|
16
|
19
|
24
|
25
|
17
|
|
2024/07
|
52
|
46
|
33
|
24
|
29
|
33
|
51
|
77
|
66
|
69
|
80
|
77
|
60
|
57
|
54
|
37
|
18
|
28
|
31
|
29
|
30
|
25
|
15
|
17
|
20
|
12
|
13
|
14
|
17
|
22
|
18
|
|
2024/06
|
20
|
26
|
29
|
31
|
46
|
52
|
46
|
25
|
19
|
29
|
44
|
24
|
30
|
14
|
15
|
25
|
17
|
22
|
54
|
33
|
36
|
31
|
9
|
12
|
20
|
30
|
44
|
48
|
39
|
35
|
|
|
2024/05
|
54
|
48
|
64
|
100
|
59
|
64
|
49
|
70
|
40
|
71
|
43
|
30
|
33
|
32
|
22
|
28
|
49
|
41
|
24
|
23
|
52
|
51
|
32
|
25
|
30
|
14
|
18
|
26
|
30
|
20
|
17
|
|
2024/04
|
61
|
73
|
65
|
66
|
73
|
65
|
61
|
55
|
71
|
112
|
99
|
115
|
77
|
100
|
117
|
92
|
66
|
52
|
39
|
181
|
158
|
71
|
32
|
34
|
42
|
29
|
32
|
24
|
65
|
51
|
|
|
2024/03
|
33
|
35
|
39
|
43
|
41
|
50
|
45
|
34
|
46
|
83
|
64
|
47
|
48
|
50
|
60
|
62
|
26
|
37
|
42
|
40
|
55
|
55
|
61
|
30
|
60
|
87
|
97
|
216
|
54
|
48
|
55
|
|
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