Air Quality
Excellent
No health implications.
27
PM2.5
39
PM10
88
O3
0.4
CO
11
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
7 Sep
56
Good
Mon
8 Sep
50
Excellent
Tue
9 Sep
48
Excellent
Wed
10 Sep
43
Excellent
Thu
11 Sep
46
Excellent
Fri
12 Sep
51
Good
Sat
13 Sep
42
Excellent
Hengfeng Air quality rank
Air quality in the last 12 months (Hengfeng)
|
2025/08
|
37
|
41
|
31
|
29
|
22
|
21
|
22
|
23
|
26
|
35
|
38
|
35
|
27
|
19
|
17
|
20
|
22
|
22
|
29
|
22
|
23
|
22
|
21
|
33
|
33
|
27
|
22
|
21
|
24
|
25
|
31
|
|
2025/07
|
23
|
28
|
32
|
36
|
32
|
30
|
30
|
30
|
23
|
19
|
27
|
21
|
18
|
27
|
36
|
35
|
45
|
36
|
24
|
20
|
15
|
16
|
23
|
21
|
29
|
25
|
18
|
23
|
20
|
28
|
24
|
|
2025/06
|
37
|
22
|
21
|
38
|
37
|
36
|
38
|
32
|
30
|
25
|
19
|
27
|
27
|
24
|
16
|
26
|
32
|
18
|
22
|
19
|
17
|
17
|
16
|
17
|
29
|
30
|
31
|
26
|
29
|
34
|
|
|
2025/05
|
46
|
47
|
57
|
56
|
32
|
46
|
76
|
45
|
23
|
42
|
39
|
44
|
44
|
45
|
58
|
35
|
27
|
27
|
32
|
26
|
23
|
29
|
15
|
50
|
62
|
62
|
55
|
43
|
21
|
27
|
40
|
|
2025/04
|
40
|
48
|
57
|
60
|
56
|
62
|
61
|
60
|
62
|
46
|
49
|
131
|
143
|
98
|
67
|
53
|
58
|
59
|
32
|
33
|
34
|
20
|
27
|
34
|
21
|
31
|
24
|
38
|
58
|
55
|
|
|
2025/03
|
37
|
41
|
40
|
16
|
22
|
21
|
49
|
49
|
59
|
55
|
57
|
53
|
19
|
20
|
16
|
33
|
36
|
39
|
46
|
46
|
44
|
49
|
53
|
64
|
64
|
70
|
61
|
54
|
36
|
40
|
38
|
|
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
|
|
|
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