Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
27
PM2.5
66
*
PM10
106
O3
0.6
CO
13
SO2
12
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
6 Feb
37
Excellent
Sat
7 Feb
39
Excellent
Sun
8 Feb
37
Excellent
Mon
9 Feb
38
Excellent
Tue
10 Feb
39
Excellent
Wed
11 Feb
39
Excellent
Thu
12 Feb
38
Excellent
Air quality in the last 12 months (Tonghai)
|
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
|
|
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
|
|||
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1
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2
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3
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4
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5
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6
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7
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8
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9
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10
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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