Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
40
*
PM2.5
53
PM10
9
O3
0.5
CO
6
SO2
9
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
16 Nov
68
Good
Mon
17 Nov
59
Good
Tue
18 Nov
54
Good
Wed
19 Nov
48
Excellent
Thu
20 Nov
50
Excellent
Fri
21 Nov
43
Excellent
Sat
22 Nov
24
Excellent
Hefeng Air quality rank
Air quality in the last 12 months (Hefeng)
|
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
|
|
|
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
|
|
|
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