Air Quality
Excellent
No health implications.
16
PM2.5
18
PM10
42
O3
0.8
CO
5
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
7 Feb
37
Excellent
Sat
8 Feb
36
Excellent
Sun
9 Feb
64
Good
Mon
10 Feb
63
Good
Tue
11 Feb
61
Good
Wed
12 Feb
60
Good
Thu
13 Feb
20
Excellent
Air quality in the last 12 months (Haicheng)
|
2025/01
|
117
|
93
|
105
|
79
|
100
|
120
|
87
|
99
|
97
|
53
|
58
|
61
|
67
|
69
|
57
|
79
|
79
|
76
|
109
|
142
|
113
|
76
|
62
|
45
|
52
|
29
|
45
|
71
|
163
|
54
|
44
|
|
2024/12
|
52
|
45
|
43
|
47
|
44
|
81
|
64
|
37
|
49
|
47
|
44
|
46
|
55
|
64
|
54
|
59
|
70
|
76
|
59
|
66
|
100
|
86
|
90
|
102
|
104
|
101
|
90
|
80
|
93
|
88
|
108
|
|
2024/11
|
51
|
52
|
62
|
50
|
69
|
72
|
68
|
56
|
68
|
64
|
49
|
55
|
56
|
50
|
41
|
31
|
38
|
41
|
37
|
38
|
37
|
46
|
47
|
52
|
38
|
33
|
45
|
43
|
44
|
50
|
|
|
2024/10
|
37
|
29
|
46
|
55
|
50
|
53
|
57
|
62
|
48
|
48
|
52
|
44
|
39
|
35
|
31
|
30
|
21
|
16
|
24
|
32
|
40
|
43
|
28
|
35
|
40
|
49
|
38
|
29
|
39
|
49
|
61
|
|
2024/09
|
20
|
16
|
20
|
32
|
44
|
36
|
15
|
27
|
25
|
16
|
27
|
36
|
37
|
38
|
40
|
28
|
26
|
24
|
29
|
28
|
26
|
19
|
27
|
31
|
36
|
41
|
36
|
14
|
17
|
19
|
|
|
2024/08
|
27
|
24
|
22
|
15
|
16
|
14
|
17
|
18
|
22
|
22
|
19
|
21
|
19
|
19
|
17
|
25
|
22
|
14
|
15
|
17
|
20
|
20
|
21
|
14
|
19
|
15
|
15
|
18
|
15
|
31
|
24
|
|
2024/07
|
25
|
23
|
19
|
15
|
11
|
13
|
15
|
16
|
12
|
15
|
15
|
15
|
15
|
16
|
21
|
18
|
12
|
13
|
15
|
14
|
17
|
17
|
17
|
15
|
14
|
28
|
20
|
19
|
16
|
9
|
18
|
|
2024/06
|
18
|
15
|
18
|
18
|
15
|
14
|
15
|
12
|
17
|
18
|
19
|
20
|
26
|
27
|
29
|
30
|
27
|
22
|
24
|
22
|
22
|
15
|
15
|
11
|
13
|
15
|
15
|
11
|
17
|
24
|
|
|
2024/05
|
25
|
22
|
23
|
22
|
22
|
40
|
28
|
27
|
30
|
35
|
30
|
23
|
32
|
27
|
34
|
38
|
45
|
32
|
13
|
18
|
17
|
25
|
17
|
20
|
12
|
13
|
27
|
16
|
26
|
22
|
15
|
|
2024/04
|
49
|
42
|
42
|
45
|
54
|
39
|
38
|
24
|
32
|
39
|
44
|
37
|
35
|
38
|
47
|
31
|
35
|
28
|
37
|
39
|
30
|
27
|
30
|
39
|
29
|
40
|
53
|
57
|
42
|
50
|
|
|
2024/03
|
37
|
57
|
96
|
36
|
41
|
62
|
69
|
76
|
51
|
15
|
17
|
38
|
31
|
48
|
57
|
54
|
48
|
41
|
28
|
55
|
61
|
48
|
43
|
53
|
44
|
50
|
40
|
38
|
45
|
32
|
35
|
|
2024/02
|
27
|
31
|
36
|
37
|
48
|
35
|
23
|
27
|
48
|
114
|
83
|
59
|
51
|
49
|
48
|
38
|
44
|
28
|
31
|
45
|
56
|
44
|
23
|
17
|
19
|
17
|
15
|
19
|
16
|
||
|
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