Air Quality
Excellent
No health implications.
14
PM2.5
27
PM10
80
O3
0.5
CO
7
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
9 May
48
Excellent
Sat
10 May
66
Good
Sun
11 May
70
Good
Mon
12 May
68
Good
Tue
13 May
58
Good
Wed
14 May
66
Good
Thu
15 May
21
Excellent
Air quality in the last 12 months (Zhenghe)
|
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
|
|
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
|
|
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