Air Quality
Excellent
No health implications.
26
PM2.5
32
PM10
44
O3
0.6
CO
4
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Feb
44
Excellent
Thu
19 Feb
45
Excellent
Fri
20 Feb
53
Good
Sat
21 Feb
46
Excellent
Sun
22 Feb
53
Good
Mon
23 Feb
51
Good
Tue
24 Feb
24
Excellent
Air quality in the last 12 months (Hua'an)
|
2026/01
|
26
|
15
|
30
|
39
|
37
|
28
|
38
|
43
|
44
|
45
|
47
|
54
|
51
|
51
|
54
|
58
|
56
|
61
|
54
|
40
|
25
|
30
|
28
|
33
|
37
|
40
|
44
|
32
|
39
|
32
|
29
|
|
2025/12
|
42
|
38
|
41
|
48
|
46
|
41
|
46
|
41
|
44
|
40
|
42
|
48
|
37
|
25
|
37
|
44
|
49
|
49
|
55
|
50
|
47
|
29
|
34
|
43
|
17
|
23
|
30
|
38
|
40
|
40
|
42
|
|
2025/11
|
23
|
33
|
35
|
11
|
16
|
19
|
29
|
35
|
34
|
14
|
20
|
7
|
8
|
22
|
35
|
40
|
35
|
31
|
19
|
29
|
31
|
40
|
43
|
44
|
35
|
56
|
49
|
54
|
57
|
51
|
|
|
2025/10
|
37
|
27
|
29
|
33
|
28
|
23
|
28
|
28
|
30
|
29
|
29
|
32
|
30
|
24
|
24
|
27
|
31
|
24
|
20
|
12
|
8
|
10
|
17
|
21
|
22
|
28
|
37
|
30
|
16
|
24
|
24
|
|
2025/09
|
26
|
23
|
28
|
29
|
32
|
25
|
17
|
12
|
15
|
16
|
15
|
25
|
26
|
29
|
27
|
27
|
22
|
15
|
15
|
9
|
14
|
13
|
11
|
9
|
16
|
18
|
21
|
24
|
30
|
32
|
|
|
2025/08
|
21
|
22
|
15
|
14
|
13
|
21
|
24
|
28
|
24
|
17
|
17
|
21
|
20
|
8
|
16
|
15
|
20
|
19
|
15
|
15
|
18
|
23
|
27
|
24
|
20
|
16
|
14
|
19
|
20
|
23
|
26
|
|
2025/07
|
29
|
20
|
23
|
24
|
16
|
18
|
21
|
30
|
30
|
12
|
11
|
21
|
26
|
18
|
28
|
31
|
31
|
20
|
11
|
12
|
9
|
10
|
15
|
18
|
15
|
17
|
17
|
15
|
19
|
18
|
19
|
|
2025/06
|
27
|
25
|
11
|
16
|
25
|
32
|
36
|
38
|
23
|
24
|
25
|
17
|
16
|
16
|
13
|
16
|
17
|
22
|
17
|
15
|
14
|
17
|
19
|
23
|
21
|
17
|
17
|
17
|
20
|
23
|
|
|
2025/05
|
52
|
44
|
43
|
46
|
27
|
29
|
29
|
44
|
25
|
28
|
22
|
29
|
39
|
36
|
31
|
23
|
21
|
23
|
21
|
25
|
25
|
32
|
26
|
14
|
29
|
37
|
35
|
25
|
8
|
16
|
35
|
|
2025/04
|
15
|
33
|
40
|
49
|
46
|
46
|
50
|
55
|
64
|
34
|
41
|
48
|
98
|
74
|
72
|
63
|
56
|
53
|
41
|
28
|
36
|
35
|
27
|
26
|
16
|
12
|
28
|
27
|
34
|
45
|
|
|
2025/03
|
42
|
29
|
25
|
23
|
12
|
10
|
18
|
30
|
39
|
41
|
44
|
43
|
25
|
28
|
25
|
9
|
42
|
36
|
38
|
43
|
45
|
47
|
53
|
63
|
71
|
66
|
47
|
43
|
10
|
7
|
8
|
|
2025/02
|
36
|
24
|
10
|
27
|
39
|
47
|
14
|
40
|
34
|
33
|
33
|
78
|
39
|
32
|
37
|
49
|
41
|
61
|
34
|
34
|
20
|
20
|
13
|
22
|
41
|
57
|
57
|
46
|
|||
|
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