Air Quality
Excellent
No health implications.
23
PM2.5
30
PM10
40
O3
0.5
CO
4
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 Feb
52
Good
Tue
25 Feb
54
Good
Wed
26 Feb
54
Good
Thu
27 Feb
48
Excellent
Fri
28 Feb
47
Excellent
Sat
1 Mar
45
Excellent
Sun
2 Mar
37
Excellent
Air quality in the last 12 months (Zhenghe)
|
2025/01
|
80
|
64
|
59
|
56
|
53
|
61
|
69
|
75
|
61
|
46
|
38
|
40
|
46
|
50
|
67
|
56
|
49
|
46
|
41
|
44
|
71
|
76
|
63
|
44
|
36
|
28
|
28
|
48
|
117
|
48
|
40
|
|
2024/12
|
44
|
46
|
53
|
65
|
57
|
34
|
37
|
61
|
56
|
52
|
32
|
30
|
34
|
59
|
60
|
53
|
48
|
54
|
53
|
41
|
48
|
65
|
55
|
52
|
56
|
76
|
111
|
90
|
60
|
57
|
64
|
|
2024/11
|
13
|
18
|
29
|
45
|
53
|
42
|
30
|
33
|
40
|
39
|
32
|
36
|
40
|
38
|
28
|
16
|
20
|
20
|
19
|
22
|
32
|
33
|
48
|
35
|
27
|
19
|
31
|
31
|
41
|
41
|
|
|
2024/10
|
18
|
17
|
24
|
23
|
29
|
21
|
18
|
14
|
25
|
38
|
48
|
50
|
37
|
37
|
43
|
23
|
30
|
35
|
32
|
17
|
30
|
33
|
25
|
38
|
29
|
26
|
21
|
12
|
37
|
43
|
26
|
|
2024/09
|
29
|
35
|
33
|
28
|
24
|
22
|
19
|
20
|
20
|
30
|
35
|
36
|
23
|
23
|
25
|
25
|
18
|
21
|
21
|
29
|
21
|
14
|
12
|
13
|
19
|
26
|
19
|
27
|
37
|
26
|
|
|
2024/08
|
23
|
26
|
32
|
30
|
22
|
24
|
27
|
30
|
33
|
40
|
31
|
27
|
25
|
24
|
23
|
25
|
19
|
19
|
18
|
17
|
12
|
22
|
29
|
33
|
32
|
31
|
40
|
24
|
30
|
30
|
29
|
|
2024/07
|
25
|
21
|
25
|
26
|
31
|
29
|
27
|
25
|
26
|
28
|
29
|
28
|
28
|
30
|
26
|
21
|
24
|
24
|
24
|
25
|
28
|
18
|
15
|
14
|
11
|
10
|
10
|
14
|
13
|
17
|
20
|
|
2024/06
|
10
|
10
|
18
|
30
|
29
|
19
|
22
|
28
|
26
|
24
|
19
|
23
|
21
|
16
|
19
|
15
|
19
|
17
|
29
|
30
|
30
|
30
|
33
|
20
|
18
|
22
|
25
|
29
|
22
|
19
|
|
|
2024/05
|
15
|
27
|
35
|
34
|
33
|
26
|
37
|
45
|
51
|
38
|
41
|
40
|
38
|
35
|
36
|
45
|
33
|
41
|
39
|
30
|
18
|
19
|
26
|
24
|
19
|
22
|
22
|
19
|
30
|
33
|
39
|
|
2024/04
|
30
|
42
|
36
|
18
|
21
|
35
|
28
|
25
|
30
|
44
|
44
|
53
|
48
|
32
|
47
|
47
|
33
|
27
|
35
|
45
|
29
|
25
|
29
|
36
|
50
|
53
|
46
|
42
|
36
|
20
|
|
|
2024/03
|
31
|
31
|
33
|
42
|
57
|
18
|
40
|
55
|
62
|
61
|
44
|
46
|
85
|
72
|
52
|
43
|
39
|
40
|
37
|
48
|
53
|
57
|
57
|
57
|
43
|
21
|
37
|
45
|
36
|
47
|
48
|
|
2024/02
|
46
|
22
|
20
|
13
|
14
|
18
|
13
|
33
|
80
|
143
|
64
|
51
|
45
|
55
|
49
|
18
|
26
|
38
|
41
|
47
|
38
|
11
|
10
|
19
|
25
|
33
|
37
|
43
|
29
|
||
|
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