Air Quality
Excellent
No health implications.
31
PM2.5
48
PM10
19
O3
0.8
CO
7
SO2
32
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Feb
61
Good
Thu
13 Feb
57
Good
Fri
14 Feb
55
Good
Sat
15 Feb
56
Good
Sun
16 Feb
59
Good
Mon
17 Feb
64
Good
Tue
18 Feb
28
Excellent
Air quality in the last 12 months (Huicheng)
|
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
|
|
2024/02
|
38
|
30
|
23
|
31
|
14
|
23
|
13
|
12
|
28
|
68
|
79
|
68
|
54
|
46
|
41
|
33
|
28
|
29
|
30
|
22
|
27
|
28
|
25
|
19
|
16
|
19
|
20
|
39
|
36
|
||
|
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