Air Quality
Excellent
No health implications.
20
PM2.5
44
PM10
70
O3
0.6
CO
10
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
8 May
61
Good
Fri
9 May
65
Good
Sat
10 May
60
Good
Sun
11 May
81
Good
Mon
12 May
84
Good
Tue
13 May
57
Good
Wed
14 May
35
Excellent
Air quality in the last 12 months (Huicheng)
|
2025/02
|
29
|
36
|
9
|
23
|
36
|
38
|
21
|
53
|
38
|
43
|
33
|
28
|
41
|
43
|
48
|
54
|
39
|
47
|
40
|
41
|
24
|
31
|
12
|
25
|
43
|
38
|
49
|
31
|
|||
|
2025/01
|
67
|
58
|
54
|
56
|
61
|
73
|
69
|
64
|
60
|
41
|
44
|
36
|
50
|
60
|
54
|
63
|
50
|
57
|
57
|
57
|
59
|
54
|
48
|
34
|
28
|
18
|
24
|
43
|
78
|
51
|
39
|
|
2024/12
|
61
|
61
|
56
|
55
|
55
|
66
|
49
|
31
|
39
|
45
|
52
|
21
|
34
|
63
|
39
|
43
|
54
|
44
|
55
|
64
|
48
|
57
|
67
|
64
|
57
|
55
|
64
|
70
|
76
|
78
|
63
|
|
2024/11
|
24
|
25
|
42
|
44
|
42
|
51
|
40
|
36
|
43
|
45
|
49
|
45
|
40
|
20
|
19
|
13
|
24
|
23
|
13
|
14
|
19
|
24
|
32
|
36
|
25
|
13
|
29
|
31
|
33
|
45
|
|
|
2024/10
|
25
|
25
|
36
|
30
|
35
|
36
|
36
|
46
|
36
|
31
|
40
|
48
|
43
|
35
|
38
|
33
|
31
|
31
|
43
|
38
|
30
|
28
|
22
|
35
|
41
|
43
|
35
|
14
|
21
|
37
|
33
|
|
2024/09
|
24
|
36
|
28
|
25
|
18
|
10
|
15
|
14
|
12
|
23
|
36
|
41
|
30
|
25
|
18
|
19
|
18
|
16
|
30
|
25
|
13
|
18
|
12
|
13
|
21
|
43
|
43
|
25
|
31
|
35
|
|
|
2024/08
|
28
|
30
|
34
|
42
|
53
|
35
|
36
|
47
|
36
|
28
|
31
|
29
|
20
|
28
|
28
|
25
|
16
|
20
|
20
|
23
|
12
|
21
|
27
|
33
|
30
|
43
|
47
|
45
|
32
|
24
|
17
|
|
2024/07
|
21
|
22
|
14
|
19
|
23
|
16
|
17
|
27
|
22
|
19
|
14
|
16
|
16
|
20
|
17
|
15
|
14
|
20
|
22
|
20
|
18
|
17
|
23
|
34
|
47
|
20
|
16
|
8
|
12
|
12
|
14
|
|
2024/06
|
9
|
22
|
18
|
21
|
29
|
12
|
15
|
15
|
15
|
12
|
20
|
24
|
27
|
23
|
19
|
22
|
21
|
17
|
22
|
15
|
22
|
28
|
13
|
12
|
15
|
20
|
18
|
18
|
16
|
17
|
|
|
2024/05
|
18
|
25
|
31
|
26
|
23
|
42
|
24
|
35
|
39
|
40
|
35
|
32
|
30
|
30
|
41
|
48
|
49
|
41
|
37
|
13
|
10
|
17
|
19
|
13
|
15
|
21
|
23
|
15
|
24
|
28
|
18
|
|
2024/04
|
46
|
47
|
29
|
26
|
47
|
32
|
18
|
30
|
19
|
31
|
50
|
58
|
54
|
33
|
40
|
38
|
30
|
30
|
28
|
23
|
16
|
33
|
29
|
24
|
16
|
21
|
23
|
11
|
23
|
21
|
|
|
2024/03
|
20
|
25
|
34
|
43
|
44
|
37
|
30
|
34
|
54
|
11
|
16
|
22
|
55
|
59
|
49
|
62
|
57
|
47
|
23
|
61
|
52
|
55
|
47
|
34
|
36
|
45
|
35
|
46
|
55
|
37
|
31
|
|
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