Air Quality
Excellent
No health implications.
20
PM2.5
28
PM10
52
O3
0.4
CO
5
SO2
2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
9 May
51
Good
Sun
10 May
56
Good
Mon
11 May
67
Good
Tue
12 May
63
Good
Wed
13 May
58
Good
Thu
14 May
55
Good
Fri
15 May
45
Excellent
Real-time AQI (Monitoring Station in Haibei Prefecture)
海晏县西海镇
2920
PM2.5
28
PM10
52
O3
0.4
CO
5
SO2
2
NO2
Air quality in the last 12 months (Haibei Prefecture)
|
2026/04
|
29
|
38
|
57
|
37
|
42
|
47
|
46
|
34
|
33
|
45
|
45
|
42
|
37
|
37
|
43
|
35
|
31
|
30
|
120
|
80
|
70
|
61
|
64
|
56
|
37
|
42
|
35
|
33
|
35
|
37
|
|
|
2026/03
|
66
|
61
|
33
|
56
|
46
|
41
|
50
|
53
|
33
|
21
|
27
|
64
|
127
|
97
|
61
|
47
|
55
|
50
|
51
|
41
|
48
|
88
|
53
|
44
|
52
|
42
|
49
|
41
|
40
|
41
|
30
|
|
2026/02
|
61
|
62
|
39
|
28
|
50
|
52
|
49
|
44
|
71
|
33
|
20
|
31
|
25
|
24
|
63
|
51
|
41
|
39
|
22
|
22
|
34
|
18
|
83
|
42
|
36
|
43
|
41
|
48
|
|||
|
2026/01
|
57
|
60
|
81
|
68
|
63
|
34
|
18
|
28
|
28
|
20
|
18
|
20
|
21
|
74
|
32
|
26
|
26
|
57
|
67
|
58
|
48
|
25
|
23
|
28
|
116
|
96
|
57
|
68
|
95
|
80
|
63
|
|
2025/12
|
30
|
25
|
27
|
31
|
25
|
23
|
37
|
24
|
33
|
26
|
26
|
185
|
27
|
25
|
24
|
24
|
25
|
25
|
39
|
53
|
29
|
29
|
57
|
62
|
48
|
31
|
23
|
23
|
21
|
27
|
42
|
|
2025/11
|
39
|
42
|
38
|
32
|
53
|
52
|
84
|
51
|
52
|
39
|
30
|
48
|
37
|
35
|
30
|
29
|
50
|
33
|
21
|
27
|
25
|
33
|
35
|
37
|
30
|
50
|
27
|
23
|
27
|
30
|
|
|
2025/10
|
21
|
21
|
29
|
48
|
29
|
33
|
17
|
21
|
24
|
20
|
22
|
17
|
18
|
20
|
35
|
32
|
43
|
25
|
45
|
50
|
42
|
45
|
22
|
30
|
28
|
29
|
25
|
17
|
25
|
36
|
39
|
|
2025/09
|
30
|
23
|
43
|
38
|
37
|
50
|
43
|
34
|
37
|
47
|
35
|
26
|
33
|
49
|
57
|
104
|
39
|
29
|
36
|
36
|
27
|
35
|
50
|
37
|
31
|
41
|
29
|
25
|
37
|
44
|
|
|
2025/08
|
48
|
41
|
35
|
21
|
17
|
19
|
29
|
19
|
28
|
22
|
25
|
21
|
28
|
24
|
19
|
23
|
35
|
28
|
29
|
25
|
24
|
22
|
28
|
38
|
37
|
37
|
20
|
16
|
18
|
20
|
20
|
|
2025/07
|
24
|
18
|
28
|
17
|
20
|
25
|
34
|
37
|
27
|
46
|
39
|
37
|
41
|
42
|
53
|
29
|
19
|
23
|
21
|
22
|
24
|
30
|
29
|
28
|
28
|
30
|
30
|
26
|
23
|
29
|
61
|
|
2025/06
|
27
|
29
|
34
|
24
|
26
|
36
|
29
|
23
|
22
|
17
|
24
|
21
|
28
|
20
|
19
|
26
|
37
|
38
|
24
|
30
|
21
|
16
|
26
|
18
|
17
|
21
|
16
|
19
|
19
|
28
|
|
|
2025/05
|
26
|
32
|
124
|
112
|
39
|
66
|
76
|
49
|
30
|
17
|
13
|
32
|
47
|
31
|
22
|
28
|
35
|
34
|
27
|
32
|
29
|
44
|
24
|
32
|
20
|
29
|
25
|
26
|
58
|
45
|
47
|
|
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