Air Quality
Excellent
No health implications.
13
PM2.5
21
PM10
51
O3
0.4
CO
5
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Mar
41
Excellent
Sun
22 Mar
37
Excellent
Mon
23 Mar
39
Excellent
Tue
24 Mar
36
Excellent
Wed
25 Mar
40
Excellent
Thu
26 Mar
36
Excellent
Fri
27 Mar
18
Excellent
Air quality in the last 12 months (Haitang)
|
2026/02
|
20
|
28
|
38
|
37
|
32
|
22
|
22
|
32
|
46
|
35
|
28
|
28
|
31
|
32
|
30
|
35
|
55
|
33
|
44
|
40
|
40
|
33
|
27
|
30
|
33
|
30
|
33
|
25
|
|||
|
2026/01
|
38
|
40
|
38
|
40
|
39
|
50
|
49
|
45
|
42
|
42
|
49
|
45
|
45
|
46
|
41
|
33
|
34
|
41
|
35
|
38
|
42
|
45
|
40
|
34
|
27
|
28
|
28
|
33
|
38
|
40
|
26
|
|
2025/12
|
18
|
18
|
23
|
38
|
34
|
42
|
36
|
53
|
52
|
34
|
38
|
32
|
37
|
22
|
30
|
28
|
45
|
51
|
39
|
31
|
29
|
46
|
34
|
33
|
29
|
24
|
40
|
45
|
37
|
31
|
38
|
|
2025/11
|
34
|
27
|
14
|
19
|
21
|
18
|
27
|
22
|
19
|
34
|
38
|
29
|
32
|
34
|
27
|
34
|
35
|
44
|
25
|
34
|
40
|
43
|
36
|
40
|
46
|
49
|
48
|
53
|
46
|
25
|
|
|
2025/10
|
16
|
14
|
15
|
16
|
16
|
15
|
19
|
17
|
22
|
19
|
21
|
13
|
11
|
12
|
16
|
21
|
22
|
25
|
32
|
29
|
12
|
8
|
14
|
19
|
27
|
33
|
23
|
18
|
22
|
19
|
23
|
|
2025/09
|
23
|
18
|
27
|
13
|
12
|
11
|
19
|
19
|
22
|
13
|
6
|
8
|
18
|
12
|
15
|
18
|
21
|
24
|
36
|
34
|
29
|
29
|
30
|
16
|
25
|
14
|
22
|
36
|
35
|
22
|
|
|
2025/08
|
40
|
40
|
39
|
26
|
34
|
47
|
49
|
32
|
24
|
22
|
24
|
24
|
23
|
21
|
14
|
9
|
9
|
7
|
12
|
26
|
25
|
16
|
21
|
34
|
40
|
16
|
20
|
16
|
16
|
48
|
35
|
|
2025/07
|
16
|
12
|
12
|
16
|
14
|
16
|
15
|
19
|
20
|
28
|
27
|
21
|
21
|
21
|
22
|
21
|
19
|
21
|
19
|
18
|
14
|
18
|
21
|
13
|
19
|
20
|
17
|
13
|
16
|
19
|
28
|
|
2025/06
|
20
|
22
|
22
|
21
|
17
|
16
|
18
|
22
|
20
|
21
|
15
|
15
|
22
|
10
|
17
|
19
|
19
|
16
|
17
|
12
|
14
|
11
|
11
|
16
|
11
|
10
|
12
|
11
|
24
|
17
|
|
|
2025/05
|
24
|
20
|
24
|
19
|
16
|
17
|
15
|
14
|
22
|
16
|
17
|
31
|
20
|
12
|
15
|
13
|
15
|
17
|
14
|
18
|
15
|
12
|
11
|
11
|
16
|
19
|
11
|
12
|
14
|
16
|
14
|
|
2025/04
|
19
|
25
|
33
|
32
|
32
|
23
|
27
|
29
|
25
|
26
|
23
|
25
|
52
|
122
|
107
|
104
|
86
|
44
|
27
|
22
|
20
|
21
|
19
|
20
|
21
|
17
|
11
|
19
|
19
|
23
|
|
|
2025/03
|
23
|
19
|
22
|
19
|
19
|
14
|
17
|
19
|
31
|
37
|
35
|
30
|
21
|
16
|
18
|
20
|
19
|
23
|
38
|
48
|
47
|
41
|
38
|
37
|
32
|
24
|
24
|
22
|
21
|
18
|
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