Air Quality
Excellent
No health implications.
5
PM2.5
9
PM10
38
O3
0.5
CO
2
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Feb
33
Excellent
Mon
24 Feb
41
Excellent
Tue
25 Feb
43
Excellent
Wed
26 Feb
43
Excellent
Thu
27 Feb
50
Excellent
Fri
28 Feb
50
Excellent
Sat
1 Mar
26
Excellent
Air quality in the last 12 months (Hua'an)
|
2025/01
|
60
|
59
|
52
|
40
|
44
|
51
|
53
|
55
|
56
|
46
|
39
|
38
|
47
|
46
|
55
|
71
|
50
|
46
|
45
|
42
|
48
|
53
|
48
|
40
|
28
|
19
|
18
|
34
|
98
|
35
|
29
|
|
2024/12
|
48
|
49
|
35
|
34
|
39
|
42
|
39
|
20
|
32
|
33
|
35
|
21
|
18
|
39
|
47
|
48
|
48
|
44
|
42
|
37
|
37
|
50
|
51
|
34
|
37
|
46
|
60
|
64
|
61
|
53
|
57
|
|
2024/11
|
10
|
13
|
26
|
31
|
34
|
31
|
23
|
23
|
32
|
37
|
32
|
23
|
17
|
25
|
29
|
19
|
20
|
15
|
13
|
12
|
11
|
20
|
23
|
27
|
18
|
13
|
23
|
24
|
31
|
42
|
|
|
2024/10
|
10
|
8
|
16
|
17
|
16
|
20
|
20
|
13
|
18
|
25
|
34
|
36
|
28
|
34
|
33
|
25
|
27
|
32
|
35
|
17
|
20
|
23
|
21
|
22
|
26
|
23
|
27
|
12
|
18
|
28
|
14
|
|
2024/09
|
30
|
29
|
35
|
26
|
21
|
13
|
14
|
20
|
15
|
30
|
37
|
40
|
25
|
26
|
18
|
21
|
16
|
16
|
24
|
19
|
19
|
10
|
8
|
12
|
16
|
20
|
22
|
16
|
18
|
12
|
|
|
2024/08
|
22
|
25
|
31
|
37
|
28
|
34
|
27
|
27
|
28
|
37
|
35
|
29
|
23
|
21
|
19
|
17
|
18
|
19
|
16
|
14
|
14
|
20
|
25
|
26
|
32
|
34
|
34
|
29
|
30
|
33
|
32
|
|
2024/07
|
17
|
17
|
18
|
19
|
18
|
16
|
15
|
15
|
14
|
20
|
21
|
18
|
19
|
22
|
20
|
20
|
18
|
19
|
19
|
18
|
21
|
27
|
32
|
23
|
13
|
7
|
9
|
15
|
19
|
21
|
12
|
|
2024/06
|
14
|
7
|
18
|
20
|
22
|
22
|
22
|
28
|
20
|
20
|
17
|
22
|
22
|
18
|
19
|
19
|
14
|
19
|
18
|
18
|
19
|
27
|
22
|
16
|
19
|
23
|
18
|
18
|
15
|
16
|
|
|
2024/05
|
25
|
17
|
30
|
36
|
22
|
31
|
46
|
43
|
44
|
47
|
42
|
30
|
18
|
26
|
36
|
51
|
51
|
51
|
43
|
18
|
11
|
9
|
21
|
20
|
25
|
17
|
14
|
20
|
25
|
36
|
28
|
|
2024/04
|
31
|
43
|
37
|
35
|
24
|
27
|
17
|
25
|
16
|
35
|
45
|
50
|
60
|
48
|
51
|
48
|
40
|
34
|
29
|
36
|
20
|
28
|
27
|
21
|
29
|
21
|
27
|
18
|
26
|
26
|
|
|
2024/03
|
11
|
21
|
38
|
49
|
49
|
31
|
25
|
47
|
58
|
53
|
32
|
32
|
61
|
61
|
40
|
58
|
53
|
36
|
38
|
50
|
55
|
60
|
55
|
38
|
34
|
35
|
45
|
40
|
39
|
50
|
30
|
|
2024/02
|
45
|
30
|
24
|
19
|
21
|
21
|
14
|
12
|
35
|
80
|
39
|
37
|
39
|
38
|
41
|
31
|
36
|
51
|
29
|
27
|
23
|
28
|
26
|
33
|
40
|
31
|
23
|
41
|
38
|
||
|
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