Air Quality
Excellent
No health implications.
11
PM2.5
14
PM10
58
O3
0.6
CO
5
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Jun
48
Excellent
Fri
27 Jun
52
Good
Sat
28 Jun
55
Good
Sun
29 Jun
51
Good
Mon
30 Jun
58
Good
Tue
1 Jul
57
Good
Wed
2 Jul
50
Excellent
Air quality in the last 12 months (Hefeng)
|
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
|
|
|
2025/03
|
69
|
74
|
11
|
22
|
28
|
26
|
41
|
48
|
47
|
45
|
56
|
64
|
53
|
42
|
21
|
35
|
38
|
31
|
32
|
41
|
48
|
58
|
52
|
52
|
44
|
55
|
94
|
62
|
47
|
49
|
50
|
|
2025/02
|
32
|
30
|
38
|
40
|
48
|
56
|
60
|
78
|
60
|
51
|
59
|
73
|
61
|
49
|
41
|
40
|
42
|
40
|
53
|
72
|
82
|
55
|
50
|
77
|
70
|
51
|
50
|
56
|
|||
|
2025/01
|
101
|
117
|
142
|
200
|
73
|
72
|
80
|
66
|
70
|
80
|
94
|
74
|
104
|
104
|
66
|
73
|
87
|
114
|
92
|
91
|
104
|
143
|
169
|
109
|
17
|
35
|
49
|
72
|
134
|
66
|
79
|
|
2024/12
|
55
|
78
|
111
|
62
|
20
|
33
|
41
|
40
|
53
|
58
|
46
|
57
|
77
|
70
|
70
|
64
|
71
|
86
|
85
|
91
|
124
|
83
|
69
|
79
|
108
|
106
|
108
|
101
|
109
|
113
|
85
|
|
2024/11
|
52
|
61
|
63
|
59
|
48
|
48
|
49
|
55
|
49
|
40
|
50
|
75
|
51
|
47
|
50
|
42
|
10
|
9
|
11
|
17
|
19
|
26
|
36
|
32
|
14
|
25
|
25
|
28
|
36
|
43
|
|
|
2024/10
|
14
|
28
|
35
|
34
|
41
|
40
|
21
|
28
|
41
|
47
|
59
|
57
|
32
|
29
|
28
|
35
|
22
|
16
|
19
|
16
|
10
|
18
|
20
|
24
|
33
|
31
|
38
|
37
|
43
|
50
|
50
|
|
2024/09
|
26
|
27
|
35
|
39
|
38
|
32
|
32
|
29
|
27
|
31
|
29
|
27
|
22
|
27
|
30
|
25
|
20
|
20
|
26
|
22
|
22
|
19
|
28
|
30
|
44
|
54
|
58
|
69
|
70
|
41
|
|
|
2024/08
|
13
|
14
|
13
|
13
|
16
|
16
|
17
|
19
|
24
|
25
|
65
|
51
|
32
|
27
|
29
|
28
|
22
|
20
|
17
|
21
|
26
|
25
|
23
|
19
|
21
|
21
|
20
|
17
|
21
|
24
|
23
|
|
2024/07
|
22
|
20
|
19
|
14
|
19
|
16
|
17
|
21
|
23
|
24
|
25
|
18
|
19
|
18
|
19
|
19
|
17
|
17
|
14
|
15
|
14
|
15
|
17
|
19
|
23
|
21
|
15
|
18
|
11
|
13
|
11
|
|
2024/06
|
31
|
32
|
29
|
19
|
11
|
21
|
32
|
29
|
22
|
20
|
25
|
18
|
23
|
32
|
38
|
34
|
20
|
22
|
25
|
21
|
19
|
14
|
22
|
23
|
22
|
21
|
16
|
9
|
15
|
22
|
|
|
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