Air Quality
Excellent
No health implications.
4
PM2.5
35
PM10
95
O3
0.4
CO
15
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
7 May
45
Excellent
Fri
8 May
38
Excellent
Sat
9 May
52
Good
Sun
10 May
69
Good
Mon
11 May
79
Good
Tue
12 May
86
Good
Wed
13 May
23
Excellent
Air quality in the last 12 months (Changshou)
|
2026/04
|
43
|
35
|
39
|
47
|
48
|
42
|
33
|
35
|
41
|
46
|
35
|
34
|
32
|
28
|
25
|
30
|
50
|
43
|
43
|
55
|
39
|
27
|
34
|
45
|
57
|
60
|
36
|
26
|
27
|
35
|
|
|
2026/03
|
36
|
43
|
39
|
42
|
49
|
48
|
41
|
41
|
30
|
37
|
45
|
47
|
48
|
62
|
24
|
31
|
32
|
30
|
29
|
39
|
40
|
43
|
37
|
32
|
31
|
42
|
38
|
41
|
40
|
37
|
29
|
|
2026/02
|
50
|
81
|
88
|
83
|
114
|
117
|
82
|
64
|
54
|
70
|
85
|
90
|
102
|
101
|
108
|
97
|
120
|
109
|
96
|
104
|
81
|
86
|
69
|
39
|
41
|
50
|
42
|
32
|
|||
|
2026/01
|
35
|
36
|
44
|
62
|
72
|
71
|
70
|
96
|
116
|
129
|
160
|
185
|
141
|
172
|
160
|
199
|
180
|
159
|
149
|
33
|
47
|
68
|
60
|
62
|
61
|
86
|
72
|
80
|
77
|
42
|
38
|
|
2025/12
|
134
|
173
|
110
|
62
|
76
|
85
|
90
|
98
|
132
|
123
|
100
|
119
|
41
|
59
|
75
|
86
|
110
|
131
|
150
|
89
|
32
|
40
|
35
|
45
|
50
|
51
|
56
|
68
|
98
|
141
|
59
|
|
2025/11
|
55
|
58
|
64
|
49
|
56
|
39
|
25
|
28
|
25
|
27
|
41
|
48
|
54
|
67
|
40
|
52
|
37
|
24
|
40
|
48
|
64
|
75
|
57
|
65
|
65
|
64
|
74
|
82
|
105
|
130
|
|
|
2025/10
|
26
|
27
|
25
|
19
|
26
|
33
|
35
|
38
|
38
|
29
|
36
|
44
|
16
|
16
|
15
|
16
|
17
|
19
|
13
|
14
|
15
|
20
|
19
|
29
|
37
|
36
|
35
|
41
|
49
|
45
|
49
|
|
2025/09
|
36
|
40
|
49
|
47
|
59
|
25
|
25
|
23
|
23
|
30
|
31
|
28
|
12
|
21
|
24
|
41
|
58
|
25
|
22
|
20
|
14
|
19
|
19
|
19
|
35
|
20
|
30
|
36
|
18
|
25
|
|
|
2025/08
|
23
|
24
|
22
|
24
|
26
|
24
|
22
|
24
|
21
|
26
|
15
|
13
|
15
|
17
|
20
|
14
|
16
|
22
|
19
|
13
|
22
|
33
|
20
|
28
|
31
|
18
|
21
|
28
|
42
|
35
|
39
|
|
2025/07
|
18
|
15
|
13
|
18
|
24
|
32
|
20
|
28
|
23
|
19
|
20
|
34
|
33
|
26
|
28
|
39
|
38
|
34
|
34
|
24
|
22
|
22
|
16
|
15
|
14
|
15
|
23
|
20
|
25
|
18
|
18
|
|
2025/06
|
21
|
23
|
38
|
49
|
47
|
52
|
61
|
39
|
21
|
32
|
39
|
36
|
42
|
42
|
37
|
39
|
33
|
26
|
19
|
28
|
20
|
14
|
22
|
25
|
25
|
26
|
23
|
19
|
18
|
28
|
|
|
2025/05
|
48
|
54
|
62
|
41
|
37
|
59
|
65
|
31
|
40
|
49
|
46
|
49
|
68
|
68
|
68
|
71
|
63
|
79
|
61
|
59
|
62
|
34
|
39
|
57
|
45
|
36
|
27
|
28
|
26
|
27
|
23
|
|
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