Air Quality
Excellent
No health implications.
9
PM2.5
12
PM10
9
O3
0.4
CO
6
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Apr
46
Excellent
Fri
24 Apr
53
Good
Sat
25 Apr
60
Good
Sun
26 Apr
54
Good
Mon
27 Apr
56
Good
Tue
28 Apr
50
Excellent
Wed
29 Apr
27
Excellent
Air quality in the last 12 months (Hefeng)
|
2026/03
|
17
|
22
|
24
|
33
|
42
|
49
|
55
|
18
|
27
|
30
|
33
|
57
|
54
|
63
|
27
|
17
|
18
|
18
|
36
|
39
|
30
|
42
|
37
|
24
|
25
|
17
|
21
|
30
|
31
|
24
|
29
|
|
2026/02
|
62
|
63
|
80
|
90
|
114
|
117
|
123
|
82
|
63
|
55
|
55
|
61
|
68
|
72
|
80
|
39
|
78
|
78
|
65
|
50
|
52
|
56
|
53
|
45
|
42
|
22
|
22
|
26
|
|||
|
2026/01
|
38
|
57
|
83
|
74
|
71
|
59
|
56
|
64
|
73
|
79
|
78
|
69
|
82
|
99
|
137
|
136
|
140
|
195
|
70
|
44
|
63
|
72
|
76
|
81
|
78
|
70
|
91
|
84
|
56
|
24
|
55
|
|
2025/12
|
88
|
104
|
74
|
72
|
79
|
68
|
74
|
67
|
75
|
110
|
105
|
152
|
30
|
40
|
51
|
58
|
68
|
82
|
86
|
90
|
35
|
48
|
28
|
39
|
52
|
51
|
60
|
72
|
87
|
115
|
65
|
|
2025/11
|
29
|
30
|
36
|
40
|
38
|
31
|
15
|
13
|
17
|
39
|
40
|
34
|
32
|
44
|
49
|
55
|
43
|
17
|
22
|
29
|
34
|
47
|
60
|
38
|
47
|
48
|
54
|
63
|
72
|
86
|
|
|
2025/10
|
19
|
20
|
23
|
20
|
24
|
29
|
31
|
35
|
40
|
35
|
49
|
39
|
16
|
10
|
14
|
10
|
11
|
9
|
9
|
9
|
13
|
19
|
24
|
33
|
43
|
32
|
31
|
31
|
40
|
38
|
32
|
|
2025/09
|
19
|
22
|
25
|
22
|
26
|
27
|
27
|
29
|
16
|
16
|
14
|
20
|
12
|
11
|
16
|
20
|
22
|
12
|
16
|
12
|
21
|
26
|
18
|
14
|
17
|
16
|
19
|
24
|
22
|
19
|
|
|
2025/08
|
24
|
23
|
21
|
25
|
25
|
23
|
19
|
14
|
16
|
18
|
8
|
9
|
8
|
16
|
14
|
15
|
15
|
23
|
19
|
13
|
12
|
13
|
16
|
19
|
14
|
16
|
16
|
19
|
25
|
25
|
18
|
|
2025/07
|
15
|
14
|
13
|
12
|
14
|
17
|
22
|
23
|
25
|
24
|
26
|
29
|
28
|
21
|
20
|
19
|
20
|
20
|
21
|
24
|
18
|
14
|
11
|
12
|
13
|
16
|
19
|
15
|
14
|
17
|
19
|
|
2025/06
|
8
|
16
|
24
|
28
|
29
|
34
|
25
|
18
|
19
|
24
|
29
|
28
|
30
|
26
|
28
|
31
|
25
|
17
|
11
|
12
|
10
|
14
|
15
|
23
|
16
|
14
|
19
|
18
|
16
|
17
|
|
|
2025/05
|
51
|
66
|
60
|
45
|
32
|
66
|
73
|
26
|
23
|
32
|
39
|
39
|
41
|
48
|
37
|
33
|
38
|
49
|
44
|
41
|
37
|
17
|
38
|
52
|
46
|
37
|
39
|
26
|
32
|
30
|
19
|
|
2025/04
|
49
|
56
|
55
|
50
|
59
|
60
|
51
|
52
|
49
|
41
|
40
|
82
|
140
|
106
|
70
|
64
|
61
|
57
|
40
|
39
|
29
|
43
|
54
|
51
|
52
|
51
|
37
|
38
|
36
|
23
|
|
|
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