Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
35
PM2.5
79
*
PM10
66
O3
0.6
CO
7
SO2
20
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
20 Apr
52
Good
Sun
21 Apr
46
Excellent
Mon
22 Apr
53
Good
Tue
23 Apr
52
Good
Wed
24 Apr
54
Good
Thu
25 Apr
52
Good
Fri
26 Apr
54
Good
Air quality in the last 12 months (Hefeng)
|
2024/02
|
45
|
22
|
23
|
28
|
52
|
55
|
56
|
65
|
56
|
117
|
69
|
62
|
62
|
63
|
52
|
47
|
46
|
56
|
99
|
41
|
17
|
27
|
38
|
28
|
41
|
53
|
55
|
58
|
63
|
||
|
2024/01
|
71
|
44
|
34
|
54
|
74
|
95
|
95
|
79
|
65
|
72
|
69
|
74
|
87
|
106
|
92
|
46
|
30
|
25
|
21
|
24
|
49
|
36
|
40
|
45
|
49
|
44
|
46
|
56
|
72
|
75
|
96
|
|
2023/12
|
36
|
30
|
39
|
41
|
42
|
54
|
55
|
67
|
90
|
103
|
37
|
25
|
20
|
19
|
16
|
41
|
43
|
35
|
38
|
57
|
79
|
72
|
75
|
73
|
78
|
87
|
95
|
136
|
168
|
81
|
66
|
|
2023/11
|
31
|
39
|
51
|
38
|
29
|
24
|
26
|
27
|
36
|
33
|
17
|
25
|
25
|
27
|
28
|
26
|
46
|
46
|
43
|
42
|
48
|
55
|
62
|
60
|
54
|
57
|
47
|
48
|
57
|
47
|
|
|
2023/10
|
19
|
17
|
14
|
17
|
23
|
24
|
20
|
21
|
27
|
28
|
30
|
38
|
32
|
28
|
29
|
34
|
45
|
52
|
62
|
23
|
32
|
37
|
41
|
47
|
39
|
19
|
20
|
24
|
24
|
23
|
27
|
|
2023/09
|
36
|
34
|
34
|
35
|
43
|
36
|
34
|
34
|
32
|
39
|
39
|
22
|
21
|
30
|
30
|
30
|
28
|
33
|
27
|
25
|
24
|
17
|
16
|
12
|
17
|
23
|
22
|
29
|
31
|
16
|
|
|
2023/08
|
20
|
19
|
23
|
23
|
20
|
19
|
23
|
25
|
29
|
29
|
31
|
30
|
22
|
25
|
28
|
30
|
30
|
37
|
36
|
36
|
28
|
28
|
33
|
39
|
38
|
31
|
19
|
21
|
24
|
31
|
34
|
|
2023/07
|
19
|
27
|
28
|
22
|
26
|
25
|
25
|
20
|
20
|
22
|
28
|
29
|
29
|
22
|
36
|
37
|
36
|
34
|
24
|
19
|
19
|
23
|
28
|
29
|
17
|
16
|
24
|
24
|
23
|
22
|
23
|
|
2023/06
|
27
|
33
|
43
|
46
|
18
|
20
|
19
|
24
|
29
|
33
|
39
|
32
|
30
|
32
|
31
|
25
|
19
|
20
|
18
|
25
|
28
|
27
|
21
|
27
|
31
|
31
|
25
|
20
|
20
|
24
|
|
|
2023/05
|
48
|
45
|
36
|
38
|
23
|
21
|
24
|
27
|
31
|
27
|
24
|
28
|
41
|
46
|
45
|
27
|
24
|
38
|
35
|
35
|
32
|
20
|
22
|
27
|
35
|
24
|
21
|
33
|
36
|
26
|
24
|
|
2023/04
|
39
|
52
|
33
|
19
|
20
|
31
|
52
|
69
|
67
|
62
|
62
|
90
|
82
|
59
|
51
|
49
|
51
|
45
|
44
|
45
|
43
|
21
|
19
|
17
|
20
|
27
|
31
|
36
|
56
|
57
|
|
|
2023/03
|
75
|
67
|
60
|
50
|
51
|
52
|
44
|
36
|
39
|
36
|
30
|
79
|
50
|
38
|
56
|
70
|
19
|
20
|
20
|
29
|
24
|
35
|
31
|
43
|
44
|
48
|
49
|
39
|
47
|
40
|
41
|
|
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