Air Quality
Excellent
No health implications.
13
PM2.5
22
PM10
38
O3
0.7
CO
8
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
11 Feb
65
Good
Thu
12 Feb
61
Good
Fri
13 Feb
53
Good
Sat
14 Feb
50
Excellent
Sun
15 Feb
49
Excellent
Mon
16 Feb
55
Good
Tue
17 Feb
28
Excellent
Air quality in the last 12 months (Haicheng)
|
2026/01
|
51
|
34
|
40
|
45
|
52
|
36
|
50
|
62
|
56
|
82
|
77
|
52
|
76
|
87
|
56
|
54
|
65
|
83
|
41
|
47
|
52
|
32
|
55
|
77
|
69
|
45
|
56
|
50
|
45
|
36
|
36
|
|
2025/12
|
70
|
47
|
62
|
74
|
78
|
84
|
66
|
74
|
75
|
75
|
66
|
45
|
37
|
44
|
53
|
46
|
55
|
55
|
47
|
43
|
63
|
53
|
37
|
30
|
25
|
40
|
55
|
68
|
73
|
67
|
65
|
|
2025/11
|
38
|
41
|
28
|
13
|
17
|
33
|
30
|
23
|
31
|
26
|
21
|
24
|
38
|
44
|
48
|
56
|
62
|
38
|
27
|
32
|
42
|
53
|
65
|
60
|
45
|
60
|
52
|
65
|
67
|
66
|
|
|
2025/10
|
16
|
15
|
19
|
19
|
29
|
18
|
18
|
28
|
33
|
35
|
35
|
24
|
21
|
16
|
16
|
28
|
29
|
35
|
36
|
27
|
22
|
21
|
29
|
40
|
46
|
52
|
52
|
49
|
55
|
62
|
40
|
|
2025/09
|
26
|
17
|
14
|
13
|
14
|
14
|
25
|
27
|
18
|
14
|
16
|
14
|
14
|
16
|
18
|
18
|
17
|
20
|
21
|
33
|
35
|
18
|
26
|
21
|
12
|
16
|
27
|
17
|
16
|
19
|
|
|
2025/08
|
16
|
21
|
33
|
42
|
25
|
18
|
22
|
31
|
23
|
25
|
21
|
17
|
18
|
18
|
17
|
19
|
19
|
15
|
18
|
18
|
23
|
20
|
14
|
22
|
13
|
17
|
17
|
32
|
21
|
18
|
16
|
|
2025/07
|
16
|
15
|
20
|
26
|
23
|
20
|
14
|
18
|
26
|
25
|
20
|
22
|
17
|
17
|
19
|
24
|
16
|
17
|
21
|
21
|
18
|
15
|
20
|
17
|
22
|
17
|
21
|
14
|
20
|
20
|
21
|
|
2025/06
|
26
|
29
|
19
|
33
|
17
|
15
|
18
|
23
|
19
|
24
|
21
|
18
|
14
|
16
|
23
|
20
|
20
|
25
|
20
|
21
|
25
|
23
|
22
|
16
|
15
|
21
|
13
|
13
|
16
|
13
|
|
|
2025/05
|
37
|
25
|
21
|
26
|
25
|
28
|
32
|
23
|
19
|
25
|
37
|
42
|
34
|
24
|
14
|
12
|
13
|
20
|
25
|
21
|
21
|
19
|
16
|
19
|
21
|
40
|
46
|
31
|
23
|
21
|
16
|
|
2025/04
|
36
|
48
|
47
|
34
|
67
|
59
|
60
|
43
|
37
|
39
|
39
|
57
|
172
|
203
|
130
|
113
|
94
|
69
|
45
|
32
|
31
|
26
|
32
|
48
|
27
|
30
|
20
|
29
|
38
|
36
|
|
|
2025/03
|
28
|
23
|
38
|
41
|
44
|
24
|
32
|
30
|
34
|
53
|
36
|
27
|
26
|
22
|
36
|
31
|
44
|
49
|
52
|
59
|
56
|
51
|
39
|
39
|
31
|
32
|
35
|
55
|
33
|
19
|
29
|
|
2025/02
|
36
|
56
|
21
|
33
|
64
|
73
|
22
|
41
|
68
|
78
|
84
|
45
|
60
|
36
|
45
|
42
|
62
|
49
|
56
|
38
|
77
|
85
|
32
|
39
|
126
|
55
|
57
|
36
|
|||
|
1
|
2
|
3
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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