Air Quality
Excellent
No health implications.
9
PM2.5
11
PM10
56
O3
0.9
CO
4
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Apr
65
Good
Thu
24 Apr
51
Good
Fri
25 Apr
48
Excellent
Sat
26 Apr
46
Excellent
Sun
27 Apr
50
Excellent
Mon
28 Apr
23
Excellent
Tue
29 Apr
44
Excellent
Air quality in the last 12 months (Hengfeng)
|
2025/02
|
22
|
15
|
30
|
46
|
43
|
50
|
58
|
50
|
32
|
44
|
56
|
57
|
71
|
85
|
53
|
56
|
57
|
33
|
38
|
20
|
15
|
22
|
19
|
47
|
74
|
65
|
50
|
36
|
|||
|
2025/01
|
89
|
77
|
72
|
65
|
88
|
72
|
73
|
80
|
62
|
45
|
48
|
54
|
59
|
57
|
73
|
58
|
52
|
54
|
57
|
59
|
65
|
63
|
56
|
55
|
38
|
23
|
47
|
69
|
150
|
58
|
38
|
|
2024/12
|
51
|
53
|
59
|
79
|
50
|
29
|
45
|
65
|
46
|
49
|
23
|
30
|
67
|
58
|
54
|
54
|
58
|
60
|
58
|
58
|
61
|
67
|
53
|
69
|
85
|
83
|
101
|
76
|
65
|
68
|
70
|
|
2024/11
|
22
|
33
|
43
|
54
|
63
|
49
|
35
|
38
|
39
|
41
|
41
|
48
|
48
|
43
|
23
|
24
|
24
|
26
|
32
|
37
|
39
|
34
|
59
|
46
|
36
|
29
|
42
|
45
|
54
|
50
|
|
|
2024/10
|
32
|
29
|
30
|
30
|
31
|
24
|
23
|
16
|
36
|
47
|
54
|
59
|
49
|
46
|
70
|
20
|
30
|
40
|
25
|
17
|
40
|
39
|
32
|
45
|
32
|
43
|
17
|
16
|
45
|
49
|
32
|
|
2024/09
|
41
|
52
|
50
|
42
|
35
|
33
|
34
|
37
|
33
|
34
|
36
|
23
|
38
|
40
|
34
|
36
|
25
|
22
|
33
|
40
|
28
|
19
|
22
|
20
|
36
|
40
|
29
|
29
|
37
|
37
|
|
|
2024/08
|
17
|
26
|
32
|
38
|
32
|
37
|
39
|
33
|
37
|
42
|
37
|
29
|
28
|
27
|
26
|
37
|
35
|
28
|
19
|
27
|
19
|
34
|
37
|
40
|
45
|
48
|
39
|
30
|
37
|
47
|
45
|
|
2024/07
|
24
|
27
|
23
|
24
|
26
|
21
|
25
|
23
|
25
|
30
|
32
|
28
|
28
|
27
|
33
|
34
|
26
|
24
|
23
|
27
|
34
|
28
|
32
|
28
|
20
|
17
|
17
|
15
|
20
|
24
|
22
|
|
2024/06
|
12
|
14
|
25
|
35
|
29
|
19
|
29
|
35
|
35
|
23
|
14
|
24
|
28
|
24
|
18
|
22
|
17
|
18
|
32
|
39
|
35
|
30
|
32
|
19
|
13
|
16
|
24
|
31
|
30
|
31
|
|
|
2024/05
|
13
|
33
|
43
|
25
|
16
|
27
|
44
|
47
|
56
|
57
|
45
|
38
|
57
|
51
|
50
|
58
|
51
|
52
|
51
|
35
|
24
|
26
|
31
|
23
|
26
|
23
|
21
|
18
|
32
|
43
|
34
|
|
2024/04
|
32
|
23
|
23
|
20
|
22
|
29
|
26
|
27
|
31
|
49
|
51
|
39
|
42
|
31
|
45
|
43
|
20
|
24
|
35
|
26
|
22
|
26
|
41
|
50
|
49
|
43
|
39
|
42
|
33
|
13
|
|
|
2024/03
|
37
|
40
|
39
|
40
|
28
|
22
|
33
|
53
|
61
|
61
|
60
|
56
|
70
|
57
|
53
|
48
|
37
|
37
|
49
|
60
|
55
|
54
|
47
|
38
|
39
|
20
|
40
|
33
|
47
|
49
|
24
|
|
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