Air Quality
Excellent
No health implications.
16
PM2.5
32
PM10
44
O3
0.1
CO
4
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Apr
77
Good
Sun
20 Apr
77
Good
Mon
21 Apr
51
Good
Tue
22 Apr
47
Excellent
Wed
23 Apr
50
Excellent
Thu
24 Apr
47
Excellent
Fri
25 Apr
40
Excellent
Air quality in the last 12 months (Haitang)
|
2025/02
|
28
|
20
|
23
|
22
|
27
|
36
|
39
|
24
|
45
|
46
|
36
|
22
|
32
|
26
|
12
|
17
|
24
|
43
|
51
|
42
|
40
|
29
|
19
|
25
|
29
|
39
|
33
|
28
|
|||
|
2025/01
|
55
|
45
|
48
|
44
|
52
|
60
|
46
|
43
|
47
|
62
|
46
|
53
|
42
|
23
|
33
|
59
|
60
|
51
|
50
|
47
|
40
|
39
|
40
|
33
|
26
|
26
|
26
|
41
|
56
|
45
|
37
|
|
2024/12
|
37
|
32
|
31
|
30
|
34
|
39
|
42
|
45
|
32
|
30
|
24
|
32
|
21
|
30
|
52
|
45
|
39
|
44
|
49
|
47
|
48
|
48
|
35
|
43
|
31
|
24
|
27
|
48
|
57
|
45
|
47
|
|
2024/11
|
35
|
37
|
14
|
15
|
37
|
39
|
32
|
49
|
42
|
28
|
28
|
31
|
38
|
33
|
24
|
28
|
21
|
23
|
30
|
15
|
16
|
25
|
23
|
19
|
27
|
32
|
28
|
37
|
45
|
39
|
|
|
2024/10
|
19
|
29
|
36
|
41
|
39
|
31
|
18
|
45
|
55
|
41
|
29
|
30
|
27
|
18
|
14
|
13
|
14
|
15
|
17
|
22
|
26
|
33
|
34
|
34
|
37
|
23
|
32
|
20
|
10
|
11
|
25
|
|
2024/09
|
12
|
13
|
15
|
21
|
25
|
12
|
21
|
29
|
24
|
17
|
14
|
13
|
20
|
12
|
17
|
19
|
17
|
18
|
16
|
12
|
19
|
13
|
8
|
14
|
17
|
15
|
16
|
15
|
14
|
12
|
|
|
2024/08
|
22
|
20
|
17
|
18
|
21
|
21
|
18
|
17
|
19
|
23
|
25
|
22
|
20
|
15
|
21
|
19
|
18
|
23
|
21
|
18
|
27
|
21
|
19
|
16
|
18
|
18
|
17
|
19
|
24
|
19
|
14
|
|
2024/07
|
21
|
23
|
21
|
14
|
11
|
15
|
10
|
13
|
18
|
16
|
14
|
12
|
12
|
12
|
23
|
18
|
12
|
13
|
14
|
15
|
13
|
11
|
14
|
22
|
19
|
19
|
22
|
24
|
20
|
17
|
22
|
|
2024/06
|
19
|
22
|
16
|
24
|
27
|
20
|
21
|
15
|
23
|
19
|
28
|
24
|
27
|
22
|
32
|
30
|
28
|
24
|
22
|
22
|
17
|
9
|
9
|
13
|
25
|
18
|
14
|
16
|
16
|
21
|
|
|
2024/05
|
28
|
21
|
19
|
22
|
30
|
24
|
19
|
19
|
27
|
26
|
28
|
27
|
21
|
14
|
18
|
25
|
24
|
17
|
18
|
17
|
15
|
12
|
16
|
17
|
17
|
23
|
28
|
23
|
28
|
15
|
14
|
|
2024/04
|
25
|
29
|
32
|
33
|
28
|
28
|
25
|
25
|
31
|
30
|
32
|
34
|
31
|
31
|
28
|
25
|
25
|
25
|
29
|
32
|
32
|
27
|
25
|
26
|
21
|
32
|
38
|
34
|
25
|
27
|
|
|
2024/03
|
17
|
13
|
17
|
27
|
38
|
43
|
29
|
12
|
33
|
43
|
43
|
27
|
26
|
34
|
43
|
37
|
28
|
29
|
25
|
20
|
44
|
47
|
36
|
33
|
32
|
30
|
36
|
31
|
27
|
23
|
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