Air Quality
Excellent
No health implications.
12
PM2.5
25
PM10
111
O3
0.4
CO
7
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Jun
89
Good
Tue
24 Jun
102
Light
Wed
25 Jun
102
Light
Thu
26 Jun
90
Good
Fri
27 Jun
62
Good
Sat
28 Jun
74
Good
Sun
29 Jun
49
Excellent
Air quality in the last 12 months (Changfeng)
|
2025/05
|
61
|
68
|
62
|
48
|
50
|
89
|
89
|
54
|
32
|
32
|
45
|
47
|
52
|
64
|
77
|
56
|
102
|
88
|
85
|
63
|
41
|
55
|
71
|
78
|
67
|
77
|
86
|
69
|
70
|
77
|
85
|
|
2025/04
|
60
|
64
|
54
|
67
|
85
|
77
|
66
|
72
|
77
|
92
|
76
|
237
|
109
|
72
|
50
|
59
|
70
|
74
|
75
|
50
|
56
|
84
|
78
|
87
|
60
|
52
|
50
|
68
|
55
|
53
|
|
|
2025/03
|
68
|
65
|
36
|
67
|
83
|
73
|
64
|
76
|
92
|
71
|
80
|
147
|
108
|
43
|
49
|
52
|
46
|
50
|
52
|
56
|
52
|
62
|
67
|
110
|
78
|
68
|
128
|
126
|
165
|
88
|
57
|
|
2025/02
|
111
|
76
|
125
|
89
|
55
|
48
|
98
|
43
|
48
|
58
|
66
|
106
|
69
|
80
|
104
|
97
|
64
|
59
|
77
|
56
|
49
|
77
|
96
|
58
|
69
|
112
|
81
|
71
|
|||
|
2025/01
|
97
|
156
|
139
|
127
|
132
|
82
|
53
|
72
|
54
|
59
|
79
|
80
|
96
|
129
|
73
|
72
|
81
|
103
|
141
|
142
|
126
|
178
|
97
|
54
|
29
|
78
|
54
|
100
|
195
|
73
|
136
|
|
2024/12
|
71
|
111
|
79
|
56
|
102
|
150
|
136
|
49
|
49
|
67
|
98
|
81
|
101
|
87
|
67
|
73
|
106
|
91
|
59
|
78
|
92
|
63
|
76
|
95
|
120
|
151
|
90
|
94
|
67
|
91
|
112
|
|
2024/11
|
57
|
102
|
75
|
80
|
65
|
57
|
46
|
43
|
51
|
47
|
45
|
54
|
68
|
84
|
89
|
52
|
37
|
35
|
24
|
33
|
46
|
78
|
42
|
39
|
36
|
50
|
76
|
67
|
52
|
63
|
|
|
2024/10
|
31
|
55
|
43
|
32
|
28
|
17
|
12
|
36
|
48
|
64
|
73
|
71
|
65
|
51
|
60
|
59
|
36
|
21
|
38
|
43
|
53
|
53
|
51
|
44
|
40
|
56
|
82
|
115
|
73
|
43
|
39
|
|
2024/09
|
44
|
44
|
32
|
37
|
51
|
51
|
44
|
41
|
27
|
33
|
35
|
12
|
18
|
40
|
38
|
35
|
12
|
31
|
25
|
23
|
34
|
37
|
47
|
45
|
56
|
43
|
24
|
39
|
43
|
53
|
|
|
2024/08
|
18
|
16
|
25
|
30
|
29
|
35
|
29
|
39
|
37
|
39
|
74
|
66
|
50
|
29
|
27
|
26
|
32
|
30
|
32
|
18
|
36
|
39
|
39
|
40
|
45
|
39
|
17
|
17
|
26
|
31
|
39
|
|
2024/07
|
14
|
19
|
23
|
18
|
25
|
23
|
27
|
24
|
22
|
39
|
29
|
23
|
21
|
17
|
18
|
39
|
31
|
22
|
25
|
20
|
21
|
25
|
31
|
38
|
24
|
27
|
13
|
12
|
12
|
17
|
19
|
|
2024/06
|
52
|
45
|
56
|
55
|
54
|
37
|
39
|
53
|
53
|
32
|
31
|
48
|
50
|
58
|
54
|
51
|
40
|
48
|
32
|
43
|
25
|
25
|
32
|
42
|
47
|
57
|
44
|
14
|
8
|
16
|
|
|
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