Air Quality
Excellent
No health implications.
17
PM2.5
23
PM10
109
O3
0.6
CO
7
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
9 May
62
Good
Fri
10 May
59
Good
Sat
11 May
60
Good
Sun
12 May
53
Good
Mon
13 May
57
Good
Tue
14 May
56
Good
Wed
15 May
56
Good
Air quality in the last 12 months (Haifeng)
|
2024/02
|
41
|
36
|
28
|
32
|
27
|
30
|
23
|
11
|
23
|
72
|
65
|
59
|
62
|
55
|
45
|
41
|
30
|
37
|
32
|
29
|
22
|
23
|
29
|
27
|
27
|
39
|
34
|
35
|
41
|
||
|
2024/01
|
77
|
67
|
46
|
37
|
57
|
74
|
71
|
70
|
66
|
34
|
55
|
79
|
71
|
41
|
54
|
50
|
45
|
45
|
41
|
37
|
29
|
25
|
22
|
27
|
34
|
42
|
46
|
33
|
65
|
69
|
51
|
|
2023/12
|
47
|
43
|
50
|
54
|
40
|
39
|
32
|
50
|
53
|
50
|
38
|
39
|
35
|
50
|
39
|
23
|
23
|
35
|
22
|
20
|
21
|
47
|
36
|
37
|
38
|
57
|
59
|
62
|
54
|
56
|
54
|
|
2023/11
|
36
|
37
|
43
|
45
|
46
|
35
|
40
|
47
|
49
|
48
|
28
|
23
|
19
|
28
|
36
|
35
|
54
|
53
|
59
|
54
|
44
|
43
|
47
|
66
|
54
|
43
|
52
|
58
|
59
|
61
|
|
|
2023/10
|
37
|
36
|
45
|
42
|
31
|
25
|
15
|
14
|
17
|
18
|
15
|
23
|
23
|
30
|
46
|
50
|
45
|
51
|
49
|
42
|
19
|
28
|
38
|
35
|
40
|
43
|
42
|
31
|
38
|
41
|
37
|
|
2023/09
|
17
|
22
|
25
|
31
|
27
|
26
|
23
|
22
|
25
|
26
|
22
|
18
|
16
|
19
|
14
|
15
|
22
|
26
|
28
|
24
|
44
|
35
|
31
|
25
|
28
|
27
|
34
|
33
|
30
|
37
|
|
|
2023/08
|
23
|
28
|
30
|
29
|
30
|
34
|
33
|
31
|
34
|
30
|
24
|
22
|
22
|
26
|
30
|
31
|
31
|
31
|
33
|
19
|
18
|
19
|
24
|
23
|
27
|
24
|
22
|
23
|
21
|
19
|
20
|
|
2023/07
|
14
|
18
|
18
|
17
|
20
|
20
|
23
|
22
|
18
|
19
|
19
|
18
|
23
|
23
|
32
|
28
|
24
|
22
|
15
|
20
|
23
|
18
|
21
|
17
|
26
|
32
|
29
|
30
|
30
|
27
|
16
|
|
2023/06
|
37
|
44
|
29
|
22
|
27
|
23
|
20
|
17
|
19
|
18
|
20
|
27
|
30
|
31
|
24
|
23
|
18
|
19
|
19
|
23
|
22
|
20
|
22
|
25
|
23
|
18
|
15
|
16
|
15
|
19
|
|
|
2023/05
|
41
|
44
|
37
|
28
|
24
|
21
|
25
|
24
|
33
|
44
|
39
|
26
|
24
|
35
|
44
|
37
|
24
|
38
|
40
|
31
|
22
|
21
|
37
|
51
|
44
|
30
|
28
|
35
|
39
|
55
|
42
|
|
2023/04
|
30
|
34
|
36
|
46
|
29
|
25
|
24
|
49
|
55
|
42
|
39
|
40
|
56
|
65
|
45
|
46
|
43
|
34
|
31
|
33
|
29
|
33
|
45
|
53
|
31
|
20
|
42
|
41
|
39
|
41
|
|
|
2023/03
|
56
|
64
|
62
|
54
|
59
|
56
|
53
|
50
|
54
|
59
|
52
|
54
|
61
|
59
|
52
|
57
|
45
|
44
|
34
|
38
|
38
|
24
|
28
|
41
|
25
|
16
|
20
|
29
|
37
|
43
|
31
|
|
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