Air Quality
Excellent
No health implications.
6
PM2.5
30
PM10
103
O3
0.5
CO
6
SO2
26
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
9 May
76
Good
Sat
10 May
75
Good
Sun
11 May
90
Good
Mon
12 May
93
Good
Tue
13 May
84
Good
Wed
14 May
88
Good
Thu
15 May
46
Excellent
Air quality in the last 12 months (Changyang)
|
2025/02
|
46
|
45
|
56
|
50
|
52
|
56
|
87
|
70
|
62
|
66
|
93
|
102
|
86
|
78
|
63
|
58
|
69
|
52
|
70
|
96
|
95
|
76
|
59
|
83
|
98
|
88
|
72
|
67
|
|||
|
2025/01
|
145
|
133
|
154
|
203
|
62
|
84
|
79
|
89
|
88
|
85
|
110
|
85
|
127
|
134
|
72
|
80
|
98
|
122
|
115
|
112
|
153
|
191
|
219
|
145
|
27
|
35
|
51
|
74
|
177
|
123
|
111
|
|
2024/12
|
68
|
87
|
91
|
68
|
31
|
49
|
48
|
60
|
80
|
62
|
50
|
74
|
81
|
52
|
69
|
74
|
94
|
100
|
73
|
93
|
95
|
60
|
60
|
82
|
122
|
107
|
133
|
102
|
110
|
160
|
140
|
|
2024/11
|
59
|
66
|
72
|
67
|
64
|
71
|
67
|
82
|
84
|
64
|
72
|
89
|
66
|
58
|
61
|
43
|
13
|
16
|
23
|
33
|
29
|
39
|
58
|
68
|
35
|
38
|
45
|
41
|
49
|
56
|
|
|
2024/10
|
23
|
41
|
47
|
42
|
54
|
46
|
26
|
42
|
51
|
56
|
69
|
61
|
53
|
56
|
62
|
54
|
41
|
21
|
25
|
36
|
27
|
40
|
37
|
44
|
47
|
43
|
48
|
53
|
80
|
87
|
57
|
|
2024/09
|
36
|
41
|
36
|
54
|
50
|
33
|
36
|
39
|
39
|
36
|
33
|
23
|
26
|
47
|
31
|
30
|
24
|
22
|
22
|
24
|
26
|
30
|
38
|
46
|
57
|
60
|
74
|
90
|
83
|
38
|
|
|
2024/08
|
20
|
27
|
20
|
18
|
21
|
16
|
20
|
22
|
32
|
34
|
70
|
52
|
34
|
33
|
36
|
33
|
22
|
25
|
16
|
32
|
31
|
26
|
31
|
30
|
32
|
32
|
18
|
18
|
25
|
33
|
42
|
|
2024/07
|
27
|
25
|
33
|
16
|
22
|
19
|
17
|
19
|
21
|
19
|
29
|
28
|
16
|
18
|
25
|
25
|
21
|
19
|
15
|
17
|
16
|
17
|
22
|
28
|
27
|
20
|
16
|
15
|
12
|
18
|
14
|
|
2024/06
|
42
|
40
|
40
|
26
|
20
|
41
|
45
|
42
|
35
|
39
|
42
|
25
|
28
|
37
|
43
|
43
|
28
|
29
|
30
|
40
|
39
|
15
|
26
|
30
|
36
|
37
|
37
|
17
|
26
|
34
|
|
|
2024/05
|
23
|
36
|
31
|
26
|
40
|
38
|
56
|
58
|
61
|
79
|
61
|
64
|
64
|
62
|
66
|
60
|
57
|
62
|
54
|
24
|
39
|
43
|
50
|
56
|
53
|
31
|
37
|
41
|
33
|
22
|
41
|
|
2024/04
|
48
|
27
|
48
|
55
|
48
|
38
|
46
|
47
|
45
|
44
|
37
|
36
|
47
|
45
|
49
|
45
|
33
|
50
|
45
|
58
|
61
|
57
|
47
|
76
|
45
|
56
|
59
|
47
|
44
|
18
|
|
|
2024/03
|
90
|
81
|
71
|
76
|
82
|
92
|
86
|
103
|
90
|
89
|
81
|
69
|
82
|
82
|
116
|
109
|
96
|
48
|
66
|
91
|
76
|
71
|
70
|
40
|
26
|
37
|
59
|
58
|
46
|
47
|
45
|
|
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