Air Quality
Excellent
No health implications.
27
PM2.5
47
PM10
76
O3
0.6
CO
5
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
9 May
100
Good
Sat
10 May
104
Light
Sun
11 May
96
Good
Mon
12 May
108
Light
Tue
13 May
102
Light
Wed
14 May
31
Excellent
Thu
15 May
31
Excellent
Air quality in the last 12 months (Changyuan)
|
2025/02
|
94
|
144
|
114
|
71
|
56
|
70
|
83
|
61
|
72
|
75
|
119
|
129
|
87
|
87
|
84
|
72
|
72
|
75
|
65
|
71
|
84
|
87
|
69
|
66
|
79
|
96
|
120
|
130
|
|||
|
2025/01
|
149
|
96
|
115
|
187
|
106
|
67
|
63
|
58
|
53
|
78
|
88
|
64
|
93
|
126
|
59
|
62
|
82
|
108
|
113
|
137
|
215
|
128
|
87
|
145
|
123
|
76
|
40
|
70
|
258
|
176
|
93
|
|
2024/12
|
73
|
62
|
80
|
126
|
135
|
125
|
86
|
66
|
74
|
122
|
133
|
118
|
87
|
74
|
64
|
72
|
97
|
62
|
56
|
95
|
66
|
60
|
80
|
132
|
174
|
122
|
74
|
65
|
83
|
89
|
104
|
|
2024/11
|
72
|
82
|
119
|
64
|
52
|
83
|
75
|
61
|
62
|
97
|
153
|
165
|
134
|
76
|
78
|
70
|
54
|
56
|
50
|
77
|
96
|
121
|
79
|
61
|
43
|
44
|
73
|
50
|
48
|
75
|
|
|
2024/10
|
47
|
40
|
54
|
61
|
59
|
66
|
105
|
87
|
125
|
98
|
84
|
117
|
95
|
119
|
159
|
85
|
64
|
17
|
22
|
29
|
52
|
76
|
89
|
75
|
91
|
104
|
136
|
109
|
144
|
173
|
176
|
|
2024/09
|
50
|
27
|
40
|
49
|
40
|
29
|
51
|
57
|
52
|
36
|
24
|
30
|
30
|
41
|
38
|
44
|
52
|
36
|
44
|
42
|
16
|
33
|
52
|
62
|
81
|
108
|
94
|
60
|
56
|
19
|
|
|
2024/08
|
23
|
28
|
28
|
28
|
25
|
15
|
24
|
30
|
28
|
76
|
66
|
33
|
33
|
40
|
44
|
49
|
44
|
26
|
17
|
24
|
37
|
47
|
48
|
53
|
47
|
39
|
26
|
31
|
44
|
45
|
45
|
|
2024/07
|
31
|
36
|
45
|
21
|
22
|
30
|
26
|
19
|
42
|
64
|
63
|
34
|
58
|
74
|
43
|
34
|
31
|
25
|
23
|
19
|
33
|
33
|
26
|
36
|
26
|
21
|
26
|
15
|
13
|
16
|
17
|
|
2024/06
|
65
|
107
|
88
|
94
|
76
|
69
|
58
|
59
|
60
|
61
|
59
|
61
|
66
|
61
|
54
|
44
|
40
|
51
|
50
|
57
|
45
|
52
|
74
|
93
|
86
|
62
|
56
|
50
|
28
|
35
|
|
|
2024/05
|
52
|
55
|
52
|
52
|
63
|
71
|
71
|
67
|
68
|
77
|
167
|
104
|
101
|
93
|
64
|
72
|
73
|
71
|
61
|
62
|
61
|
56
|
61
|
69
|
68
|
66
|
47
|
55
|
72
|
61
|
94
|
|
2024/04
|
106
|
98
|
60
|
46
|
69
|
59
|
56
|
62
|
81
|
77
|
59
|
55
|
58
|
34
|
51
|
88
|
80
|
80
|
75
|
79
|
74
|
76
|
87
|
96
|
90
|
72
|
63
|
65
|
60
|
55
|
|
|
2024/03
|
90
|
96
|
92
|
108
|
111
|
87
|
101
|
54
|
66
|
81
|
89
|
110
|
99
|
105
|
68
|
91
|
98
|
83
|
101
|
74
|
97
|
113
|
102
|
47
|
41
|
62
|
36
|
84
|
95
|
106
|
84
|
|
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