Air Quality
Excellent
No health implications.
6
PM2.5
10
PM10
17
O3
0.3
CO
8
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 May
48
Excellent
Wed
20 May
59
Good
Thu
21 May
65
Good
Fri
22 May
53
Good
Sat
23 May
62
Good
Sun
24 May
27
Excellent
Mon
25 May
19
Excellent
Air quality in the last 12 months (Changfeng)
|
2026/04
|
84
|
70
|
54
|
60
|
78
|
80
|
58
|
37
|
46
|
37
|
67
|
44
|
24
|
37
|
50
|
66
|
70
|
61
|
51
|
53
|
56
|
22
|
28
|
37
|
47
|
46
|
50
|
36
|
33
|
40
|
|
|
2026/03
|
36
|
31
|
85
|
56
|
54
|
73
|
46
|
54
|
86
|
86
|
72
|
78
|
93
|
80
|
89
|
70
|
71
|
70
|
103
|
112
|
98
|
69
|
78
|
74
|
73
|
78
|
75
|
63
|
62
|
67
|
102
|
|
2026/02
|
55
|
69
|
100
|
79
|
87
|
74
|
51
|
56
|
45
|
62
|
88
|
88
|
77
|
71
|
80
|
39
|
117
|
64
|
67
|
62
|
42
|
278
|
143
|
21
|
46
|
40
|
30
|
34
|
|||
|
2026/01
|
38
|
63
|
71
|
73
|
119
|
91
|
57
|
76
|
65
|
117
|
72
|
76
|
81
|
91
|
100
|
104
|
137
|
76
|
25
|
39
|
55
|
54
|
70
|
92
|
105
|
24
|
67
|
83
|
76
|
31
|
50
|
|
2025/12
|
137
|
80
|
70
|
66
|
75
|
96
|
106
|
103
|
71
|
88
|
148
|
40
|
59
|
84
|
73
|
73
|
159
|
130
|
133
|
193
|
86
|
42
|
48
|
80
|
71
|
51
|
61
|
74
|
101
|
116
|
41
|
|
2025/11
|
90
|
72
|
43
|
56
|
65
|
49
|
22
|
18
|
87
|
72
|
41
|
42
|
83
|
139
|
116
|
109
|
44
|
49
|
50
|
52
|
91
|
90
|
97
|
130
|
91
|
90
|
331
|
155
|
89
|
98
|
|
|
2025/10
|
14
|
25
|
11
|
25
|
42
|
52
|
49
|
35
|
35
|
62
|
50
|
57
|
14
|
37
|
27
|
21
|
19
|
17
|
26
|
28
|
20
|
31
|
41
|
49
|
51
|
63
|
66
|
69
|
59
|
41
|
85
|
|
2025/09
|
18
|
14
|
23
|
30
|
31
|
28
|
36
|
34
|
12
|
18
|
24
|
19
|
10
|
14
|
16
|
27
|
13
|
10
|
14
|
13
|
29
|
22
|
42
|
9
|
12
|
14
|
17
|
23
|
22
|
20
|
|
|
2025/08
|
10
|
9
|
12
|
15
|
26
|
27
|
12
|
11
|
13
|
10
|
8
|
9
|
13
|
20
|
19
|
21
|
28
|
26
|
21
|
16
|
17
|
24
|
15
|
18
|
15
|
10
|
20
|
31
|
23
|
9
|
11
|
|
2025/07
|
21
|
14
|
24
|
28
|
35
|
38
|
47
|
23
|
15
|
38
|
43
|
27
|
26
|
39
|
32
|
30
|
21
|
31
|
27
|
16
|
13
|
12
|
15
|
17
|
25
|
13
|
14
|
13
|
18
|
17
|
9
|
|
2025/06
|
30
|
16
|
44
|
59
|
57
|
37
|
22
|
26
|
24
|
40
|
45
|
46
|
43
|
34
|
33
|
53
|
54
|
16
|
9
|
9
|
8
|
17
|
30
|
37
|
27
|
31
|
13
|
12
|
10
|
15
|
|
|
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
|
|
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