Air Quality
Excellent
No health implications.
10
PM2.5
22
PM10
69
O3
0.5
CO
5
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
25 Jun
42
Excellent
Fri
26 Jun
54
Good
Sat
27 Jun
62
Good
Sun
28 Jun
59
Good
Mon
29 Jun
52
Good
Tue
30 Jun
50
Excellent
Wed
1 Jul
29
Excellent
Air quality in the last 12 months (Hefeng)
|
2026/05
|
35
|
34
|
25
|
31
|
33
|
39
|
29
|
25
|
26
|
28
|
34
|
47
|
29
|
27
|
39
|
39
|
19
|
13
|
14
|
18
|
24
|
26
|
28
|
30
|
25
|
17
|
17
|
21
|
35
|
28
|
27
|
|
2026/04
|
24
|
24
|
29
|
49
|
47
|
33
|
29
|
33
|
37
|
32
|
25
|
27
|
27
|
21
|
22
|
25
|
28
|
35
|
35
|
63
|
33
|
17
|
18
|
29
|
39
|
43
|
30
|
23
|
27
|
30
|
|
|
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
|
|
|
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