Air Quality
Excellent
No health implications.
5
PM2.5
13
PM10
42
O3
0.5
CO
5
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 May
36
Excellent
Fri
30 May
38
Excellent
Sat
31 May
39
Excellent
Sun
1 Jun
62
Good
Mon
2 Jun
59
Good
Tue
3 Jun
34
Excellent
Wed
4 Jun
43
Excellent
Air quality in the last 12 months (Tonghai)
|
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
|
|
2024/06
|
26
|
25
|
28
|
35
|
12
|
14
|
17
|
16
|
13
|
11
|
15
|
19
|
11
|
17
|
14
|
17
|
27
|
29
|
31
|
31
|
22
|
21
|
21
|
20
|
17
|
16
|
15
|
17
|
12
|
13
|
|
|
2024/05
|
57
|
56
|
33
|
47
|
49
|
38
|
33
|
34
|
23
|
22
|
30
|
34
|
21
|
30
|
31
|
15
|
25
|
28
|
31
|
19
|
28
|
33
|
34
|
25
|
23
|
10
|
13
|
17
|
19
|
31
|
26
|
|
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