Air Quality
Excellent
No health implications.
18
PM2.5
30
PM10
88
O3
0.4
CO
7
SO2
19
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
1 May
86
Good
Sat
2 May
53
Good
Sun
3 May
79
Good
Mon
4 May
89
Good
Tue
5 May
89
Good
Wed
6 May
24
Excellent
Thu
7 May
48
Excellent
Air quality in the last 12 months (Changfeng)
|
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
|
|
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
|
|
|
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