Air Quality
Excellent
No health implications.
12
PM2.5
25
PM10
102
O3
0.4
CO
4
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Jun
90
Good
Mon
30 Jun
89
Good
Tue
1 Jul
96
Good
Wed
2 Jul
104
Light
Thu
3 Jul
125
Light
Fri
4 Jul
17
Excellent
Sat
5 Jul
30
Excellent
Air quality in the last 12 months (Changyuan)
|
2025/05
|
64
|
90
|
50
|
51
|
180
|
129
|
91
|
78
|
52
|
33
|
52
|
54
|
66
|
71
|
52
|
87
|
128
|
83
|
100
|
72
|
73
|
70
|
75
|
59
|
59
|
52
|
61
|
61
|
61
|
67
|
56
|
|
2025/04
|
73
|
58
|
61
|
94
|
78
|
89
|
92
|
93
|
97
|
114
|
94
|
216
|
101
|
57
|
64
|
119
|
131
|
113
|
49
|
66
|
62
|
70
|
87
|
75
|
76
|
73
|
83
|
61
|
60
|
88
|
|
|
2025/03
|
122
|
52
|
44
|
34
|
78
|
93
|
83
|
84
|
107
|
109
|
98
|
143
|
120
|
64
|
74
|
47
|
52
|
58
|
68
|
56
|
53
|
70
|
99
|
297
|
178
|
111
|
114
|
147
|
68
|
63
|
76
|
|
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
|
|
|
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