Air Quality
Excellent
No health implications.
3
PM2.5
9
PM10
71
O3
0.4
CO
4
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Apr
61
Good
Thu
1 May
91
Good
Fri
2 May
83
Good
Sat
3 May
86
Good
Sun
4 May
53
Good
Mon
5 May
55
Good
Tue
6 May
23
Excellent
Air quality in the last 12 months (Songtao)
|
2025/02
|
28
|
18
|
37
|
38
|
52
|
52
|
43
|
72
|
46
|
44
|
42
|
60
|
60
|
34
|
36
|
40
|
29
|
27
|
30
|
37
|
83
|
31
|
45
|
79
|
46
|
33
|
34
|
36
|
|||
|
2025/01
|
94
|
103
|
102
|
120
|
90
|
65
|
54
|
50
|
41
|
49
|
59
|
60
|
61
|
63
|
69
|
65
|
72
|
85
|
77
|
82
|
98
|
125
|
139
|
99
|
17
|
24
|
38
|
69
|
130
|
83
|
46
|
|
2024/12
|
37
|
39
|
63
|
57
|
26
|
29
|
31
|
30
|
38
|
24
|
28
|
48
|
54
|
49
|
41
|
40
|
55
|
61
|
65
|
70
|
80
|
65
|
51
|
54
|
59
|
63
|
62
|
75
|
81
|
97
|
77
|
|
2024/11
|
35
|
43
|
47
|
44
|
49
|
46
|
39
|
38
|
38
|
31
|
26
|
46
|
53
|
49
|
69
|
55
|
11
|
10
|
10
|
11
|
17
|
16
|
37
|
26
|
14
|
14
|
18
|
21
|
24
|
31
|
|
|
2024/10
|
13
|
26
|
34
|
33
|
39
|
45
|
41
|
27
|
34
|
36
|
54
|
64
|
44
|
30
|
34
|
28
|
24
|
26
|
22
|
16
|
25
|
24
|
26
|
32
|
23
|
27
|
30
|
33
|
29
|
30
|
34
|
|
2024/09
|
24
|
26
|
33
|
32
|
41
|
35
|
38
|
33
|
23
|
22
|
24
|
27
|
20
|
17
|
29
|
31
|
25
|
20
|
25
|
25
|
24
|
16
|
22
|
26
|
30
|
32
|
35
|
40
|
50
|
44
|
|
|
2024/08
|
12
|
15
|
16
|
13
|
13
|
15
|
17
|
19
|
21
|
20
|
27
|
42
|
29
|
25
|
30
|
27
|
20
|
17
|
16
|
18
|
19
|
20
|
17
|
16
|
12
|
16
|
19
|
16
|
17
|
17
|
19
|
|
2024/07
|
14
|
14
|
13
|
13
|
14
|
13
|
11
|
14
|
17
|
17
|
15
|
21
|
25
|
17
|
15
|
16
|
15
|
13
|
12
|
14
|
18
|
17
|
14
|
11
|
14
|
21
|
18
|
18
|
13
|
15
|
14
|
|
2024/06
|
19
|
18
|
18
|
12
|
10
|
11
|
17
|
13
|
10
|
10
|
13
|
14
|
16
|
13
|
19
|
20
|
14
|
10
|
14
|
14
|
28
|
20
|
13
|
14
|
17
|
12
|
10
|
14
|
12
|
14
|
|
|
2024/05
|
13
|
15
|
9
|
8
|
14
|
20
|
23
|
31
|
29
|
32
|
18
|
24
|
20
|
26
|
32
|
46
|
46
|
26
|
10
|
11
|
18
|
27
|
25
|
23
|
22
|
26
|
13
|
24
|
15
|
9
|
14
|
|
2024/04
|
25
|
21
|
17
|
27
|
19
|
17
|
16
|
20
|
18
|
24
|
26
|
26
|
20
|
24
|
37
|
27
|
11
|
23
|
14
|
21
|
36
|
33
|
25
|
26
|
16
|
15
|
18
|
17
|
16
|
11
|
|
|
2024/03
|
68
|
48
|
43
|
37
|
26
|
41
|
55
|
43
|
51
|
46
|
42
|
36
|
40
|
31
|
35
|
23
|
20
|
16
|
28
|
48
|
41
|
46
|
38
|
29
|
17
|
13
|
21
|
20
|
22
|
28
|
22
|
|
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