Air Quality
Excellent
No health implications.
11
PM2.5
37
PM10
134
O3
0.4
CO
6
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
25 Apr
64
Good
Fri
26 Apr
89
Good
Sat
27 Apr
89
Good
Sun
28 Apr
96
Good
Mon
29 Apr
84
Good
Tue
30 Apr
38
Excellent
Wed
1 May
36
Excellent
Air quality in the last 12 months (Changyang)
|
2024/02
|
57
|
39
|
33
|
43
|
88
|
87
|
72
|
77
|
92
|
122
|
96
|
89
|
76
|
72
|
52
|
63
|
57
|
61
|
174
|
19
|
20
|
27
|
27
|
42
|
71
|
82
|
67
|
77
|
67
|
||
|
2024/01
|
98
|
75
|
49
|
81
|
98
|
135
|
149
|
108
|
109
|
107
|
111
|
128
|
142
|
158
|
86
|
70
|
54
|
47
|
29
|
46
|
68
|
40
|
38
|
48
|
61
|
81
|
81
|
97
|
121
|
134
|
150
|
|
2023/12
|
48
|
64
|
62
|
66
|
59
|
64
|
51
|
71
|
95
|
74
|
26
|
47
|
50
|
21
|
24
|
48
|
50
|
46
|
55
|
88
|
84
|
67
|
94
|
122
|
127
|
144
|
151
|
196
|
223
|
165
|
101
|
|
2023/11
|
42
|
52
|
66
|
49
|
34
|
34
|
43
|
43
|
54
|
81
|
32
|
27
|
33
|
44
|
63
|
36
|
47
|
47
|
50
|
56
|
78
|
83
|
65
|
56
|
52
|
66
|
53
|
67
|
83
|
51
|
|
|
2023/10
|
26
|
25
|
17
|
22
|
24
|
29
|
24
|
25
|
30
|
31
|
35
|
44
|
41
|
35
|
36
|
42
|
65
|
76
|
54
|
27
|
38
|
46
|
59
|
72
|
64
|
25
|
21
|
30
|
29
|
29
|
35
|
|
2023/09
|
42
|
41
|
44
|
49
|
46
|
38
|
39
|
37
|
47
|
47
|
28
|
18
|
23
|
35
|
38
|
41
|
45
|
54
|
35
|
28
|
24
|
22
|
18
|
18
|
23
|
30
|
30
|
32
|
34
|
25
|
|
|
2023/08
|
26
|
28
|
32
|
35
|
33
|
31
|
30
|
31
|
38
|
41
|
47
|
52
|
28
|
33
|
42
|
39
|
46
|
45
|
49
|
45
|
33
|
36
|
47
|
48
|
48
|
44
|
26
|
25
|
34
|
37
|
40
|
|
2023/07
|
30
|
36
|
36
|
23
|
33
|
31
|
34
|
38
|
28
|
31
|
30
|
29
|
28
|
23
|
38
|
47
|
45
|
39
|
31
|
29
|
27
|
31
|
37
|
40
|
23
|
26
|
29
|
29
|
20
|
24
|
27
|
|
2023/06
|
37
|
40
|
42
|
38
|
19
|
29
|
31
|
28
|
39
|
38
|
52
|
33
|
37
|
51
|
46
|
26
|
20
|
19
|
22
|
31
|
40
|
28
|
31
|
41
|
36
|
42
|
37
|
28
|
27
|
26
|
|
|
2023/05
|
70
|
57
|
58
|
38
|
30
|
27
|
34
|
37
|
38
|
33
|
37
|
41
|
51
|
55
|
60
|
48
|
34
|
48
|
39
|
42
|
53
|
23
|
26
|
41
|
57
|
43
|
40
|
47
|
47
|
35
|
39
|
|
2023/04
|
59
|
63
|
29
|
22
|
31
|
48
|
88
|
85
|
73
|
69
|
86
|
132
|
119
|
67
|
59
|
60
|
61
|
49
|
55
|
60
|
69
|
22
|
18
|
17
|
25
|
35
|
45
|
53
|
86
|
84
|
|
|
2023/03
|
113
|
93
|
99
|
70
|
79
|
65
|
45
|
55
|
65
|
58
|
44
|
138
|
85
|
64
|
84
|
64
|
24
|
33
|
49
|
59
|
49
|
77
|
65
|
88
|
60
|
72
|
66
|
68
|
60
|
57
|
61
|
|
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