Air Quality
Excellent
No health implications.
17
PM2.5
41
PM10
97
O3
0.5
CO
9
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Jan
61
Good
Thu
16 Jan
61
Good
Fri
17 Jan
85
Good
Sat
18 Jan
61
Good
Sun
19 Jan
60
Good
Mon
20 Jan
84
Good
Tue
21 Jan
49
Excellent
Air quality in the last 12 months (Haifeng)
|
2024/12
|
50
|
49
|
46
|
46
|
50
|
61
|
49
|
31
|
40
|
43
|
46
|
27
|
27
|
54
|
42
|
40
|
59
|
51
|
45
|
53
|
42
|
48
|
68
|
51
|
44
|
46
|
65
|
65
|
61
|
66
|
58
|
|
2024/11
|
25
|
17
|
34
|
42
|
40
|
48
|
39
|
32
|
38
|
38
|
51
|
38
|
30
|
18
|
31
|
28
|
21
|
28
|
15
|
8
|
14
|
23
|
33
|
42
|
27
|
16
|
24
|
27
|
31
|
42
|
|
|
2024/10
|
22
|
21
|
29
|
27
|
29
|
43
|
33
|
25
|
28
|
32
|
43
|
43
|
36
|
32
|
35
|
31
|
29
|
34
|
41
|
23
|
30
|
28
|
23
|
28
|
33
|
35
|
39
|
30
|
20
|
32
|
34
|
|
2024/09
|
19
|
22
|
34
|
28
|
24
|
11
|
17
|
10
|
16
|
22
|
31
|
36
|
34
|
23
|
20
|
18
|
26
|
32
|
29
|
22
|
14
|
14
|
9
|
11
|
17
|
25
|
41
|
23
|
26
|
27
|
|
|
2024/08
|
27
|
24
|
24
|
30
|
28
|
31
|
31
|
27
|
21
|
24
|
25
|
20
|
20
|
19
|
20
|
19
|
16
|
19
|
16
|
19
|
16
|
21
|
23
|
30
|
27
|
26
|
25
|
31
|
32
|
26
|
18
|
|
2024/07
|
22
|
19
|
13
|
17
|
15
|
16
|
12
|
17
|
15
|
13
|
11
|
11
|
11
|
17
|
15
|
13
|
14
|
17
|
19
|
21
|
16
|
16
|
15
|
31
|
32
|
21
|
17
|
9
|
14
|
13
|
14
|
|
2024/06
|
17
|
18
|
14
|
24
|
24
|
25
|
16
|
16
|
15
|
19
|
18
|
26
|
28
|
30
|
22
|
21
|
19
|
18
|
15
|
14
|
25
|
23
|
14
|
14
|
15
|
15
|
17
|
16
|
14
|
18
|
|
|
2024/05
|
17
|
26
|
28
|
29
|
14
|
27
|
33
|
39
|
42
|
43
|
36
|
27
|
30
|
29
|
38
|
51
|
42
|
36
|
37
|
17
|
12
|
13
|
13
|
11
|
14
|
17
|
22
|
16
|
24
|
28
|
19
|
|
2024/04
|
34
|
40
|
23
|
32
|
45
|
26
|
27
|
34
|
18
|
36
|
42
|
45
|
40
|
29
|
25
|
33
|
24
|
25
|
41
|
33
|
17
|
25
|
21
|
22
|
20
|
17
|
17
|
12
|
22
|
19
|
|
|
2024/03
|
17
|
16
|
33
|
42
|
62
|
42
|
31
|
37
|
61
|
44
|
27
|
23
|
57
|
61
|
71
|
66
|
54
|
42
|
34
|
55
|
56
|
54
|
50
|
29
|
26
|
36
|
37
|
40
|
44
|
50
|
25
|
|
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
|
|
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