Air Quality
Excellent
No health implications.
25
PM2.5
37
PM10
19
O3
0.4
CO
1
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Dec
42
Excellent
Tue
16 Dec
44
Excellent
Wed
17 Dec
50
Excellent
Thu
18 Dec
47
Excellent
Fri
19 Dec
48
Excellent
Sat
20 Dec
44
Excellent
Sun
21 Dec
33
Excellent
Air quality in the last 12 months (Zhenghe)
|
2025/11
|
31
|
44
|
51
|
19
|
24
|
34
|
34
|
32
|
18
|
32
|
32
|
13
|
24
|
32
|
50
|
51
|
43
|
21
|
25
|
33
|
40
|
46
|
49
|
42
|
55
|
70
|
61
|
59
|
57
|
48
|
|
|
2025/10
|
32
|
22
|
22
|
24
|
25
|
27
|
31
|
36
|
36
|
30
|
33
|
30
|
33
|
26
|
23
|
26
|
30
|
31
|
19
|
17
|
17
|
17
|
29
|
29
|
32
|
43
|
41
|
37
|
27
|
31
|
22
|
|
2025/09
|
22
|
22
|
25
|
27
|
25
|
21
|
18
|
18
|
19
|
16
|
15
|
22
|
27
|
20
|
28
|
21
|
18
|
18
|
17
|
19
|
20
|
26
|
19
|
16
|
22
|
21
|
25
|
26
|
29
|
33
|
|
|
2025/08
|
29
|
26
|
19
|
18
|
15
|
20
|
20
|
25
|
30
|
32
|
30
|
26
|
14
|
12
|
11
|
12
|
13
|
14
|
17
|
18
|
15
|
16
|
25
|
23
|
18
|
18
|
14
|
12
|
13
|
15
|
21
|
|
2025/07
|
13
|
15
|
22
|
23
|
20
|
15
|
14
|
23
|
15
|
14
|
17
|
17
|
20
|
17
|
26
|
30
|
32
|
26
|
14
|
13
|
9
|
13
|
18
|
18
|
24
|
14
|
15
|
16
|
17
|
22
|
24
|
|
2025/06
|
38
|
35
|
15
|
27
|
27
|
31
|
37
|
34
|
18
|
19
|
19
|
18
|
14
|
21
|
17
|
17
|
22
|
20
|
23
|
20
|
20
|
20
|
24
|
23
|
30
|
29
|
26
|
21
|
25
|
20
|
|
|
2025/05
|
42
|
43
|
51
|
48
|
34
|
41
|
68
|
42
|
35
|
36
|
32
|
36
|
34
|
35
|
47
|
46
|
42
|
22
|
24
|
27
|
30
|
29
|
30
|
25
|
50
|
54
|
47
|
27
|
13
|
28
|
37
|
|
2025/04
|
24
|
34
|
41
|
47
|
46
|
52
|
54
|
54
|
58
|
35
|
41
|
61
|
110
|
82
|
69
|
54
|
63
|
59
|
52
|
27
|
47
|
38
|
28
|
23
|
13
|
25
|
25
|
35
|
48
|
47
|
|
|
2025/03
|
50
|
47
|
45
|
21
|
18
|
14
|
33
|
39
|
50
|
46
|
59
|
59
|
29
|
18
|
13
|
20
|
38
|
34
|
42
|
41
|
36
|
38
|
47
|
58
|
72
|
86
|
77
|
40
|
23
|
18
|
21
|
|
2025/02
|
28
|
14
|
22
|
47
|
41
|
45
|
42
|
51
|
34
|
49
|
39
|
49
|
68
|
77
|
56
|
52
|
55
|
54
|
34
|
20
|
13
|
27
|
17
|
49
|
82
|
59
|
47
|
31
|
|||
|
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
|
|
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