Air Quality
Excellent
No health implications.
5
PM2.5
16
PM10
45
O3
0.3
CO
5
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
11 Aug
39
Excellent
Tue
12 Aug
49
Excellent
Wed
13 Aug
49
Excellent
Thu
14 Aug
45
Excellent
Fri
15 Aug
33
Excellent
Sat
16 Aug
37
Excellent
Sun
17 Aug
31
Excellent
Air quality in the last 12 months (Tonghai)
|
2025/06
|
14
|
16
|
14
|
16
|
23
|
34
|
34
|
33
|
21
|
32
|
41
|
34
|
33
|
34
|
23
|
29
|
18
|
13
|
15
|
15
|
16
|
10
|
15
|
12
|
13
|
15
|
17
|
14
|
15
|
16
|
|
|
2025/05
|
31
|
31
|
24
|
18
|
23
|
26
|
29
|
33
|
41
|
37
|
19
|
26
|
28
|
30
|
20
|
20
|
23
|
18
|
25
|
24
|
35
|
30
|
49
|
32
|
19
|
12
|
16
|
14
|
10
|
16
|
15
|
|
2025/04
|
35
|
63
|
79
|
87
|
85
|
66
|
63
|
56
|
57
|
65
|
56
|
43
|
66
|
52
|
46
|
25
|
24
|
29
|
34
|
37
|
36
|
28
|
44
|
53
|
54
|
58
|
65
|
61
|
37
|
31
|
|
|
2025/03
|
45
|
44
|
55
|
50
|
60
|
57
|
42
|
47
|
44
|
38
|
51
|
58
|
57
|
61
|
59
|
49
|
48
|
20
|
29
|
51
|
73
|
67
|
58
|
41
|
41
|
49
|
56
|
100
|
104
|
70
|
60
|
|
2025/02
|
46
|
53
|
29
|
40
|
56
|
51
|
39
|
44
|
39
|
33
|
39
|
41
|
53
|
51
|
58
|
58
|
47
|
43
|
45
|
50
|
55
|
50
|
49
|
23
|
30
|
25
|
32
|
43
|
|||
|
2025/01
|
36
|
32
|
48
|
48
|
44
|
58
|
45
|
43
|
47
|
41
|
27
|
47
|
41
|
44
|
71
|
70
|
57
|
52
|
59
|
47
|
54
|
48
|
42
|
28
|
28
|
28
|
40
|
54
|
74
|
33
|
36
|
|
2024/12
|
23
|
25
|
23
|
22
|
24
|
23
|
23
|
25
|
20
|
26
|
31
|
30
|
26
|
33
|
46
|
43
|
24
|
37
|
48
|
39
|
37
|
43
|
35
|
39
|
44
|
50
|
51
|
43
|
40
|
30
|
39
|
|
2024/11
|
31
|
36
|
42
|
44
|
40
|
48
|
36
|
34
|
27
|
23
|
26
|
27
|
22
|
23
|
22
|
24
|
29
|
33
|
36
|
35
|
23
|
29
|
22
|
26
|
26
|
31
|
18
|
16
|
29
|
26
|
|
|
2024/10
|
25
|
16
|
25
|
23
|
35
|
34
|
37
|
42
|
27
|
20
|
28
|
30
|
22
|
24
|
25
|
18
|
17
|
27
|
36
|
26
|
19
|
24
|
22
|
33
|
25
|
29
|
41
|
46
|
43
|
37
|
30
|
|
2024/09
|
26
|
24
|
20
|
24
|
18
|
25
|
26
|
10
|
8
|
9
|
11
|
12
|
23
|
28
|
30
|
21
|
18
|
18
|
24
|
27
|
28
|
16
|
20
|
29
|
34
|
39
|
39
|
29
|
23
|
31
|
|
|
2024/08
|
41
|
33
|
20
|
16
|
16
|
13
|
12
|
10
|
11
|
13
|
28
|
43
|
39
|
33
|
31
|
27
|
31
|
34
|
28
|
38
|
31
|
24
|
17
|
20
|
17
|
12
|
22
|
26
|
24
|
26
|
31
|
|
2024/07
|
11
|
17
|
23
|
10
|
17
|
24
|
15
|
18
|
15
|
12
|
11
|
14
|
18
|
13
|
15
|
14
|
22
|
18
|
15
|
13
|
13
|
14
|
21
|
18
|
24
|
23
|
23
|
27
|
20
|
12
|
18
|
|
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