Air Quality
Excellent
No health implications.
7
PM2.5
13
PM10
26
O3
0.4
CO
6
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 May
57
Good
Sat
16 May
57
Good
Sun
17 May
60
Good
Mon
18 May
61
Good
Tue
19 May
61
Good
Wed
20 May
15
Excellent
Thu
21 May
16
Excellent
Air quality in the last 12 months (Haifeng)
|
2026/04
|
27
|
31
|
40
|
29
|
26
|
31
|
29
|
32
|
40
|
25
|
26
|
23
|
20
|
21
|
21
|
25
|
25
|
54
|
51
|
41
|
29
|
30
|
24
|
17
|
24
|
42
|
41
|
34
|
25
|
21
|
|
|
2026/03
|
24
|
37
|
17
|
15
|
17
|
22
|
39
|
44
|
39
|
33
|
37
|
44
|
43
|
42
|
45
|
40
|
37
|
39
|
33
|
33
|
39
|
39
|
43
|
38
|
39
|
38
|
40
|
36
|
37
|
35
|
32
|
|
2026/02
|
20
|
26
|
43
|
51
|
48
|
44
|
35
|
29
|
39
|
40
|
34
|
39
|
45
|
35
|
29
|
33
|
46
|
43
|
40
|
48
|
59
|
49
|
58
|
62
|
47
|
27
|
38
|
14
|
|||
|
2026/01
|
47
|
23
|
33
|
47
|
41
|
26
|
39
|
32
|
43
|
50
|
46
|
62
|
64
|
55
|
56
|
50
|
53
|
57
|
60
|
39
|
34
|
31
|
44
|
45
|
39
|
38
|
44
|
40
|
39
|
39
|
28
|
|
2025/12
|
29
|
38
|
46
|
61
|
51
|
46
|
48
|
50
|
50
|
51
|
51
|
46
|
43
|
36
|
39
|
49
|
57
|
53
|
42
|
27
|
66
|
53
|
38
|
44
|
25
|
30
|
40
|
41
|
42
|
42
|
41
|
|
2025/11
|
30
|
41
|
43
|
26
|
18
|
32
|
30
|
32
|
32
|
17
|
23
|
16
|
12
|
25
|
43
|
42
|
41
|
43
|
23
|
33
|
39
|
42
|
55
|
52
|
43
|
60
|
52
|
62
|
70
|
57
|
|
|
2025/10
|
19
|
18
|
19
|
27
|
19
|
19
|
33
|
28
|
32
|
29
|
27
|
22
|
17
|
17
|
27
|
28
|
31
|
34
|
30
|
19
|
11
|
12
|
25
|
30
|
31
|
37
|
48
|
43
|
32
|
40
|
26
|
|
2025/09
|
17
|
17
|
16
|
17
|
15
|
26
|
16
|
18
|
20
|
15
|
14
|
15
|
14
|
13
|
18
|
22
|
25
|
17
|
10
|
14
|
13
|
21
|
15
|
18
|
20
|
23
|
23
|
27
|
22
|
20
|
|
|
2025/08
|
27
|
19
|
26
|
13
|
9
|
27
|
22
|
28
|
28
|
13
|
13
|
18
|
27
|
13
|
18
|
24
|
17
|
12
|
13
|
20
|
21
|
23
|
23
|
20
|
18
|
20
|
18
|
20
|
21
|
20
|
17
|
|
2025/07
|
13
|
18
|
25
|
32
|
20
|
19
|
31
|
23
|
22
|
17
|
14
|
29
|
31
|
28
|
26
|
26
|
30
|
23
|
21
|
14
|
15
|
11
|
15
|
22
|
27
|
35
|
28
|
20
|
29
|
31
|
23
|
|
2025/06
|
29
|
27
|
20
|
19
|
29
|
23
|
22
|
16
|
16
|
19
|
14
|
15
|
15
|
30
|
30
|
24
|
11
|
17
|
15
|
15
|
11
|
13
|
13
|
12
|
14
|
14
|
17
|
16
|
14
|
15
|
|
|
2025/05
|
33
|
42
|
50
|
36
|
33
|
23
|
26
|
48
|
32
|
22
|
26
|
32
|
35
|
29
|
22
|
18
|
17
|
15
|
17
|
15
|
17
|
16
|
20
|
20
|
33
|
32
|
42
|
32
|
28
|
15
|
29
|
|
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