Air Quality
Excellent
No health implications.
10
PM2.5
18
PM10
108
O3
0.4
CO
5
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
11 May
71
Good
Mon
12 May
83
Good
Tue
13 May
82
Good
Wed
14 May
66
Good
Thu
15 May
55
Good
Fri
16 May
57
Good
Sat
17 May
31
Excellent
Air quality in the last 12 months (Hua'an)
|
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
|
|||
|
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
|
|
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