Air Quality
Excellent
No health implications.
8
PM2.5
21
PM10
31
O3
0.4
CO
6
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Jul
38
Excellent
Sat
18 Jul
39
Excellent
Sun
19 Jul
39
Excellent
Mon
20 Jul
38
Excellent
Tue
21 Jul
41
Excellent
Wed
22 Jul
39
Excellent
Thu
23 Jul
34
Excellent
Air quality in the last 12 months (Tonghai)
|
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
|
|
|
2025/08
|
26
|
26
|
23
|
19
|
26
|
26
|
15
|
11
|
13
|
21
|
17
|
23
|
15
|
26
|
30
|
14
|
15
|
23
|
25
|
21
|
14
|
10
|
13
|
17
|
17
|
12
|
11
|
14
|
17
|
16
|
17
|
|
2025/07
|
20
|
15
|
15
|
19
|
21
|
18
|
21
|
14
|
17
|
19
|
22
|
22
|
26
|
33
|
25
|
30
|
24
|
23
|
20
|
24
|
23
|
14
|
12
|
12
|
13
|
30
|
42
|
27
|
31
|
32
|
15
|
|
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