Air Quality
Excellent
No health implications.
11
PM2.5
40
PM10
88
O3
0.5
CO
7
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Mar
57
Good
Fri
20 Mar
81
Good
Sat
21 Mar
104
Light
Sun
22 Mar
55
Good
Mon
23 Mar
100
Good
Tue
24 Mar
81
Good
Wed
25 Mar
22
Excellent
Air quality in the last 12 months (Meihekou)
|
2026/02
|
75
|
71
|
66
|
113
|
110
|
48
|
51
|
53
|
58
|
74
|
80
|
83
|
115
|
94
|
47
|
82
|
188
|
45
|
45
|
59
|
76
|
100
|
50
|
47
|
54
|
56
|
59
|
49
|
|||
|
2026/01
|
68
|
68
|
82
|
90
|
66
|
57
|
56
|
63
|
62
|
60
|
43
|
44
|
24
|
48
|
52
|
67
|
57
|
51
|
37
|
56
|
55
|
49
|
53
|
53
|
69
|
61
|
62
|
60
|
69
|
75
|
71
|
|
2025/12
|
58
|
43
|
46
|
56
|
51
|
61
|
68
|
50
|
64
|
79
|
65
|
78
|
64
|
75
|
74
|
66
|
74
|
56
|
37
|
44
|
45
|
52
|
40
|
67
|
52
|
62
|
80
|
75
|
40
|
50
|
54
|
|
2025/11
|
52
|
33
|
34
|
50
|
66
|
65
|
81
|
92
|
42
|
41
|
87
|
77
|
50
|
86
|
102
|
54
|
46
|
46
|
55
|
52
|
66
|
67
|
103
|
197
|
316
|
170
|
55
|
51
|
48
|
52
|
|
|
2025/10
|
43
|
47
|
40
|
33
|
36
|
29
|
32
|
41
|
40
|
38
|
34
|
46
|
57
|
93
|
64
|
59
|
51
|
32
|
43
|
41
|
51
|
62
|
71
|
73
|
96
|
68
|
60
|
95
|
136
|
41
|
56
|
|
2025/09
|
18
|
34
|
30
|
30
|
28
|
20
|
29
|
34
|
28
|
28
|
33
|
41
|
42
|
32
|
25
|
28
|
29
|
33
|
30
|
30
|
38
|
33
|
33
|
26
|
32
|
41
|
36
|
32
|
38
|
35
|
|
|
2025/08
|
23
|
24
|
21
|
18
|
21
|
17
|
19
|
22
|
21
|
18
|
24
|
22
|
26
|
22
|
28
|
19
|
17
|
22
|
29
|
21
|
20
|
16
|
25
|
20
|
16
|
20
|
28
|
20
|
20
|
31
|
22
|
|
2025/07
|
18
|
16
|
12
|
11
|
17
|
18
|
25
|
22
|
27
|
27
|
27
|
26
|
22
|
18
|
14
|
14
|
19
|
18
|
18
|
16
|
16
|
20
|
13
|
16
|
21
|
23
|
25
|
19
|
19
|
14
|
22
|
|
2025/06
|
35
|
36
|
21
|
18
|
30
|
28
|
22
|
24
|
28
|
16
|
18
|
25
|
26
|
27
|
29
|
19
|
23
|
26
|
27
|
19
|
17
|
19
|
25
|
29
|
31
|
28
|
40
|
29
|
30
|
23
|
|
|
2025/05
|
20
|
25
|
23
|
26
|
32
|
26
|
37
|
42
|
46
|
28
|
36
|
41
|
41
|
36
|
26
|
26
|
21
|
29
|
25
|
34
|
41
|
49
|
35
|
35
|
29
|
34
|
35
|
30
|
35
|
39
|
43
|
|
2025/04
|
51
|
42
|
58
|
51
|
29
|
33
|
35
|
53
|
59
|
60
|
58
|
32
|
15
|
27
|
37
|
39
|
46
|
36
|
27
|
47
|
53
|
20
|
37
|
66
|
63
|
73
|
64
|
54
|
53
|
49
|
|
|
2025/03
|
77
|
30
|
32
|
31
|
47
|
56
|
48
|
52
|
62
|
55
|
46
|
81
|
43
|
40
|
52
|
54
|
69
|
58
|
57
|
63
|
63
|
117
|
127
|
79
|
97
|
80
|
41
|
35
|
34
|
43
|
56
|
|
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