Air Quality
Excellent
No health implications.
8
PM2.5
14
PM10
32
O3
0.5
CO
9
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Sep
47
Excellent
Fri
18 Sep
48
Excellent
Sat
19 Sep
44
Excellent
Sun
20 Sep
37
Excellent
Mon
21 Sep
40
Excellent
Tue
22 Sep
25
Excellent
Wed
23 Sep
36
Excellent
Air quality in the last 12 months (Tonghai)
|
2026/08
|
16
|
14
|
13
|
24
|
33
|
25
|
18
|
24
|
28
|
28
|
35
|
30
|
34
|
35
|
32
|
31
|
23
|
23
|
20
|
24
|
29
|
29
|
33
|
34
|
32
|
22
|
18
|
28
|
20
|
24
|
28
|
|
2026/07
|
17
|
16
|
17
|
21
|
20
|
17
|
19
|
20
|
24
|
24
|
19
|
19
|
23
|
25
|
22
|
17
|
17
|
23
|
31
|
42
|
33
|
31
|
25
|
24
|
21
|
20
|
23
|
18
|
16
|
16
|
18
|
|
2026/06
|
24
|
23
|
23
|
27
|
33
|
26
|
21
|
24
|
25
|
26
|
24
|
20
|
16
|
18
|
19
|
17
|
17
|
16
|
18
|
17
|
17
|
16
|
18
|
18
|
21
|
18
|
17
|
16
|
21
|
21
|
|
|
2026/05
|
25
|
23
|
22
|
26
|
31
|
32
|
31
|
34
|
34
|
18
|
17
|
19
|
24
|
27
|
32
|
37
|
35
|
36
|
36
|
35
|
30
|
29
|
28
|
25
|
29
|
40
|
44
|
34
|
22
|
21
|
25
|
|
2026/04
|
45
|
46
|
44
|
47
|
44
|
45
|
42
|
47
|
39
|
37
|
39
|
41
|
48
|
61
|
73
|
70
|
62
|
59
|
59
|
46
|
50
|
58
|
56
|
52
|
41
|
41
|
40
|
40
|
29
|
28
|
|
|
2026/03
|
51
|
53
|
52
|
46
|
56
|
56
|
52
|
54
|
30
|
28
|
38
|
41
|
37
|
33
|
29
|
31
|
42
|
38
|
47
|
43
|
52
|
42
|
32
|
47
|
70
|
54
|
51
|
75
|
46
|
37
|
45
|
|
2026/02
|
31
|
29
|
37
|
42
|
43
|
51
|
44
|
36
|
28
|
32
|
32
|
31
|
32
|
33
|
39
|
51
|
94
|
54
|
34
|
30
|
22
|
27
|
36
|
41
|
37
|
28
|
33
|
41
|
|||
|
2026/01
|
37
|
32
|
19
|
22
|
24
|
22
|
36
|
40
|
36
|
30
|
42
|
33
|
43
|
38
|
41
|
34
|
32
|
33
|
34
|
35
|
31
|
32
|
32
|
32
|
33
|
31
|
35
|
33
|
35
|
36
|
39
|
|
2025/12
|
36
|
33
|
43
|
42
|
34
|
28
|
30
|
38
|
31
|
34
|
35
|
32
|
43
|
49
|
28
|
26
|
35
|
30
|
24
|
29
|
37
|
28
|
28
|
32
|
39
|
44
|
33
|
31
|
30
|
26
|
28
|
|
2025/11
|
22
|
8
|
8
|
14
|
16
|
15
|
20
|
18
|
11
|
16
|
16
|
17
|
21
|
23
|
26
|
28
|
26
|
19
|
17
|
36
|
40
|
40
|
29
|
33
|
41
|
45
|
43
|
37
|
43
|
39
|
|
|
2025/10
|
13
|
13
|
16
|
17
|
19
|
19
|
9
|
12
|
16
|
19
|
23
|
25
|
25
|
30
|
20
|
15
|
16
|
21
|
21
|
31
|
14
|
16
|
18
|
31
|
28
|
23
|
21
|
28
|
26
|
25
|
29
|
|
2025/09
|
19
|
19
|
17
|
20
|
20
|
22
|
21
|
24
|
16
|
15
|
15
|
15
|
15
|
11
|
17
|
19
|
20
|
23
|
20
|
19
|
25
|
23
|
16
|
11
|
22
|
10
|
14
|
17
|
11
|
10
|
|
|
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