Air Quality
Excellent
No health implications.
13
PM2.5
34
PM10
111
O3
0.2
CO
2
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
7 May
63
Good
Thu
8 May
57
Good
Fri
9 May
56
Good
Sat
10 May
38
Excellent
Sun
11 May
57
Good
Mon
12 May
51
Good
Tue
13 May
37
Excellent
Air quality in the last 12 months (Tonghai)
|
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
|
|
2024/04
|
45
|
49
|
57
|
61
|
61
|
81
|
71
|
61
|
61
|
65
|
80
|
80
|
70
|
47
|
62
|
79
|
84
|
73
|
44
|
49
|
45
|
50
|
49
|
50
|
41
|
44
|
50
|
59
|
56
|
53
|
|
|
2024/03
|
48
|
52
|
47
|
42
|
29
|
32
|
48
|
63
|
59
|
52
|
44
|
62
|
59
|
57
|
59
|
65
|
81
|
62
|
59
|
56
|
48
|
33
|
28
|
39
|
35
|
48
|
56
|
54
|
52
|
70
|
66
|
|
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