Air Quality
Excellent
No health implications.
20
PM2.5
28
PM10
56
O3
0.5
CO
12
SO2
19
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
6 May
54
Good
Wed
7 May
53
Good
Thu
8 May
53
Good
Fri
9 May
50
Excellent
Sat
10 May
53
Good
Sun
11 May
56
Good
Mon
12 May
39
Excellent
Air quality in the last 12 months (Qiezihe)
|
2025/02
|
70
|
90
|
87
|
59
|
32
|
34
|
56
|
50
|
43
|
57
|
66
|
71
|
33
|
38
|
48
|
37
|
20
|
26
|
24
|
47
|
41
|
34
|
31
|
35
|
50
|
27
|
46
|
60
|
|||
|
2025/01
|
91
|
105
|
83
|
79
|
102
|
107
|
83
|
61
|
45
|
54
|
86
|
111
|
94
|
76
|
62
|
47
|
74
|
55
|
108
|
175
|
112
|
184
|
145
|
131
|
129
|
119
|
57
|
91
|
70
|
45
|
53
|
|
2024/12
|
36
|
22
|
24
|
20
|
20
|
30
|
29
|
34
|
45
|
54
|
38
|
39
|
43
|
42
|
29
|
38
|
37
|
41
|
39
|
75
|
88
|
78
|
61
|
45
|
61
|
45
|
30
|
49
|
41
|
37
|
73
|
|
2024/11
|
58
|
54
|
61
|
49
|
49
|
16
|
38
|
55
|
67
|
50
|
59
|
133
|
134
|
69
|
101
|
42
|
26
|
31
|
35
|
62
|
77
|
35
|
38
|
59
|
32
|
20
|
24
|
44
|
33
|
26
|
|
|
2024/10
|
11
|
21
|
22
|
28
|
34
|
34
|
34
|
47
|
44
|
26
|
15
|
36
|
28
|
31
|
18
|
21
|
32
|
36
|
38
|
30
|
41
|
29
|
32
|
42
|
64
|
46
|
27
|
38
|
38
|
45
|
52
|
|
2024/09
|
13
|
15
|
14
|
18
|
15
|
16
|
19
|
21
|
18
|
13
|
19
|
22
|
15
|
18
|
26
|
22
|
27
|
26
|
16
|
17
|
20
|
30
|
28
|
28
|
24
|
14
|
23
|
17
|
20
|
27
|
|
|
2024/08
|
11
|
12
|
10
|
10
|
11
|
12
|
15
|
16
|
17
|
14
|
10
|
13
|
12
|
16
|
17
|
15
|
23
|
12
|
12
|
11
|
11
|
11
|
17
|
18
|
16
|
19
|
14
|
22
|
24
|
18
|
15
|
|
2024/07
|
77
|
59
|
40
|
27
|
33
|
50
|
46
|
67
|
50
|
35
|
48
|
9
|
17
|
21
|
30
|
32
|
15
|
11
|
12
|
14
|
17
|
19
|
17
|
11
|
13
|
11
|
11
|
12
|
13
|
12
|
11
|
|
2024/06
|
11
|
22
|
13
|
14
|
13
|
13
|
19
|
18
|
11
|
13
|
13
|
10
|
10
|
11
|
11
|
11
|
15
|
15
|
20
|
17
|
9
|
10
|
12
|
11
|
11
|
17
|
27
|
35
|
38
|
35
|
|
|
2024/05
|
49
|
87
|
46
|
48
|
66
|
52
|
27
|
38
|
27
|
22
|
16
|
14
|
29
|
13
|
14
|
22
|
32
|
45
|
20
|
27
|
35
|
44
|
26
|
13
|
25
|
17
|
9
|
14
|
10
|
14
|
10
|
|
2024/04
|
26
|
28
|
40
|
28
|
34
|
64
|
26
|
18
|
46
|
50
|
61
|
61
|
47
|
63
|
96
|
37
|
33
|
34
|
43
|
63
|
135
|
98
|
75
|
31
|
50
|
53
|
48
|
64
|
62
|
42
|
|
|
2024/03
|
40
|
33
|
36
|
43
|
38
|
46
|
53
|
35
|
44
|
54
|
85
|
42
|
44
|
50
|
26
|
21
|
14
|
26
|
30
|
48
|
45
|
24
|
18
|
26
|
36
|
35
|
23
|
52
|
57
|
40
|
31
|
|
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