Air Quality
Excellent
No health implications.
17
PM2.5
42
PM10
106
O3
0.1
CO
6
SO2
3
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
9 May
67
Good
Sat
10 May
70
Good
Sun
11 May
87
Good
Mon
12 May
90
Good
Tue
13 May
78
Good
Wed
14 May
64
Good
Thu
15 May
32
Excellent
Air quality in the last 12 months (Changshou)
|
2025/02
|
102
|
54
|
44
|
47
|
52
|
45
|
44
|
44
|
56
|
69
|
89
|
79
|
47
|
52
|
45
|
54
|
53
|
51
|
51
|
45
|
49
|
50
|
45
|
52
|
65
|
76
|
69
|
81
|
|||
|
2025/01
|
152
|
199
|
197
|
161
|
94
|
101
|
79
|
46
|
51
|
51
|
66
|
76
|
96
|
100
|
69
|
83
|
92
|
109
|
106
|
124
|
139
|
193
|
235
|
86
|
40
|
34
|
59
|
107
|
324
|
142
|
102
|
|
2024/12
|
101
|
122
|
99
|
77
|
33
|
45
|
37
|
39
|
41
|
47
|
65
|
47
|
49
|
47
|
65
|
75
|
96
|
112
|
72
|
93
|
136
|
101
|
70
|
103
|
130
|
132
|
124
|
124
|
112
|
114
|
134
|
|
2024/11
|
66
|
51
|
69
|
63
|
31
|
49
|
71
|
93
|
41
|
37
|
72
|
58
|
47
|
38
|
42
|
38
|
24
|
26
|
21
|
27
|
37
|
38
|
36
|
34
|
24
|
40
|
49
|
53
|
77
|
98
|
|
|
2024/10
|
20
|
19
|
26
|
54
|
67
|
52
|
50
|
51
|
77
|
96
|
64
|
43
|
44
|
51
|
63
|
60
|
28
|
24
|
35
|
16
|
15
|
22
|
36
|
55
|
62
|
93
|
52
|
58
|
70
|
86
|
94
|
|
2024/09
|
43
|
37
|
29
|
26
|
38
|
44
|
44
|
33
|
24
|
36
|
40
|
42
|
37
|
39
|
20
|
28
|
30
|
34
|
32
|
50
|
39
|
39
|
35
|
51
|
72
|
87
|
65
|
47
|
33
|
24
|
|
|
2024/08
|
26
|
22
|
19
|
20
|
23
|
23
|
26
|
29
|
32
|
49
|
42
|
55
|
49
|
44
|
42
|
47
|
37
|
48
|
45
|
45
|
41
|
40
|
30
|
25
|
23
|
23
|
37
|
32
|
32
|
25
|
29
|
|
2024/07
|
33
|
29
|
29
|
20
|
21
|
21
|
19
|
18
|
19
|
25
|
19
|
26
|
24
|
15
|
17
|
21
|
25
|
29
|
20
|
23
|
23
|
23
|
23
|
18
|
44
|
48
|
31
|
38
|
44
|
30
|
29
|
|
2024/06
|
47
|
32
|
31
|
24
|
20
|
23
|
23
|
23
|
34
|
40
|
32
|
33
|
46
|
52
|
56
|
32
|
24
|
22
|
17
|
15
|
19
|
31
|
40
|
43
|
36
|
29
|
16
|
16
|
29
|
31
|
|
|
2024/05
|
33
|
28
|
23
|
27
|
34
|
54
|
62
|
35
|
43
|
39
|
36
|
50
|
42
|
47
|
29
|
46
|
47
|
53
|
39
|
16
|
24
|
28
|
27
|
34
|
37
|
26
|
25
|
30
|
23
|
27
|
30
|
|
2024/04
|
35
|
43
|
26
|
17
|
21
|
27
|
26
|
33
|
29
|
35
|
34
|
32
|
33
|
44
|
60
|
34
|
28
|
31
|
24
|
37
|
38
|
31
|
30
|
46
|
45
|
36
|
45
|
37
|
24
|
22
|
|
|
2024/03
|
58
|
58
|
67
|
64
|
106
|
80
|
46
|
58
|
61
|
81
|
83
|
74
|
91
|
73
|
68
|
63
|
66
|
29
|
42
|
54
|
58
|
63
|
66
|
55
|
29
|
29
|
28
|
43
|
47
|
49
|
43
|
|
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