Air Quality
Excellent
No health implications.
7
PM2.5
11
PM10
41
O3
0.4
CO
3
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
2 Jul
57
Good
Thu
3 Jul
58
Good
Fri
4 Jul
60
Good
Sat
5 Jul
56
Good
Sun
6 Jul
55
Good
Mon
7 Jul
27
Excellent
Tue
8 Jul
28
Excellent
Air quality in the last 12 months (Hui'an)
|
2025/05
|
62
|
54
|
55
|
47
|
41
|
42
|
49
|
46
|
29
|
30
|
30
|
35
|
35
|
41
|
38
|
27
|
21
|
24
|
29
|
32
|
31
|
45
|
47
|
21
|
49
|
37
|
29
|
17
|
12
|
31
|
40
|
|
2025/04
|
16
|
30
|
44
|
47
|
47
|
48
|
55
|
54
|
68
|
54
|
43
|
25
|
115
|
95
|
81
|
68
|
63
|
60
|
47
|
38
|
37
|
43
|
37
|
26
|
11
|
15
|
26
|
47
|
42
|
43
|
|
|
2025/03
|
70
|
33
|
27
|
29
|
11
|
13
|
31
|
42
|
32
|
36
|
49
|
51
|
39
|
29
|
38
|
17
|
46
|
36
|
43
|
45
|
43
|
48
|
64
|
70
|
66
|
46
|
34
|
53
|
24
|
7
|
9
|
|
2025/02
|
43
|
17
|
16
|
56
|
49
|
32
|
18
|
52
|
31
|
33
|
35
|
96
|
66
|
49
|
38
|
56
|
65
|
43
|
31
|
17
|
14
|
23
|
12
|
49
|
57
|
56
|
65
|
74
|
|||
|
2025/01
|
58
|
52
|
43
|
40
|
43
|
49
|
63
|
47
|
54
|
46
|
33
|
43
|
44
|
42
|
80
|
58
|
50
|
36
|
43
|
39
|
64
|
48
|
46
|
22
|
31
|
34
|
19
|
49
|
67
|
35
|
34
|
|
2024/12
|
44
|
46
|
28
|
42
|
38
|
35
|
25
|
54
|
37
|
29
|
30
|
20
|
29
|
47
|
73
|
48
|
39
|
41
|
42
|
25
|
41
|
57
|
32
|
24
|
29
|
50
|
62
|
76
|
45
|
45
|
53
|
|
2024/11
|
19
|
17
|
33
|
35
|
44
|
44
|
31
|
27
|
27
|
29
|
22
|
22
|
23
|
21
|
20
|
18
|
23
|
28
|
16
|
13
|
12
|
28
|
36
|
27
|
17
|
18
|
36
|
33
|
39
|
42
|
|
|
2024/10
|
13
|
12
|
15
|
15
|
15
|
18
|
19
|
11
|
31
|
39
|
42
|
35
|
27
|
31
|
32
|
27
|
34
|
38
|
34
|
18
|
25
|
30
|
38
|
36
|
21
|
25
|
24
|
19
|
34
|
39
|
21
|
|
2024/09
|
39
|
38
|
32
|
23
|
22
|
17
|
18
|
20
|
20
|
40
|
51
|
41
|
21
|
20
|
23
|
22
|
21
|
27
|
24
|
20
|
23
|
8
|
10
|
20
|
28
|
17
|
18
|
21
|
24
|
17
|
|
|
2024/08
|
28
|
44
|
50
|
37
|
34
|
28
|
31
|
42
|
42
|
44
|
46
|
48
|
41
|
31
|
26
|
15
|
18
|
18
|
18
|
12
|
21
|
25
|
34
|
40
|
43
|
42
|
54
|
46
|
35
|
43
|
40
|
|
2024/07
|
21
|
21
|
22
|
25
|
28
|
21
|
20
|
22
|
21
|
24
|
25
|
30
|
26
|
29
|
34
|
33
|
25
|
24
|
28
|
30
|
29
|
33
|
27
|
18
|
10
|
14
|
15
|
28
|
24
|
26
|
14
|
|
2024/06
|
12
|
7
|
17
|
28
|
25
|
19
|
22
|
23
|
29
|
18
|
17
|
28
|
28
|
30
|
23
|
20
|
20
|
20
|
20
|
17
|
24
|
31
|
25
|
20
|
23
|
25
|
28
|
21
|
20
|
22
|
|
|
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