Air Quality
Excellent
No health implications.
8
PM2.5
19
PM10
33
O3
0.3
CO
5
SO2
25
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
28 Jun
53
Good
Sun
29 Jun
50
Excellent
Mon
30 Jun
53
Good
Tue
1 Jul
57
Good
Wed
2 Jul
64
Good
Thu
3 Jul
69
Good
Fri
4 Jul
28
Excellent
Air quality in the last 12 months (Changyang)
|
2025/05
|
58
|
66
|
58
|
36
|
38
|
150
|
139
|
36
|
28
|
49
|
44
|
49
|
61
|
48
|
43
|
35
|
53
|
84
|
59
|
49
|
51
|
27
|
41
|
59
|
65
|
61
|
59
|
35
|
43
|
33
|
20
|
|
2025/04
|
55
|
61
|
63
|
52
|
61
|
68
|
64
|
58
|
56
|
42
|
40
|
238
|
163
|
142
|
82
|
76
|
72
|
68
|
58
|
60
|
52
|
66
|
74
|
66
|
65
|
68
|
51
|
52
|
47
|
31
|
|
|
2025/03
|
119
|
95
|
20
|
34
|
43
|
39
|
67
|
83
|
63
|
54
|
81
|
65
|
55
|
48
|
31
|
42
|
50
|
42
|
41
|
43
|
49
|
57
|
48
|
55
|
46
|
54
|
111
|
52
|
67
|
61
|
61
|
|
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
|
|
|
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