Air Quality
Excellent
No health implications.
18
PM2.5
31
PM10
158
O3
0.4
CO
11
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
6 Jun
71
Good
Sat
7 Jun
72
Good
Sun
8 Jun
84
Good
Mon
9 Jun
74
Good
Tue
10 Jun
85
Good
Wed
11 Jun
88
Good
Thu
12 Jun
31
Excellent
Air quality in the last 12 months (Chengguan)
|
2025/04
|
115
|
114
|
93
|
119
|
80
|
67
|
70
|
87
|
128
|
72
|
127
|
380
|
108
|
75
|
67
|
182
|
93
|
255
|
157
|
138
|
92
|
78
|
62
|
57
|
54
|
48
|
66
|
49
|
57
|
94
|
|
|
2025/03
|
90
|
58
|
68
|
84
|
61
|
65
|
72
|
82
|
82
|
72
|
215
|
101
|
103
|
63
|
47
|
59
|
50
|
43
|
55
|
64
|
62
|
66
|
63
|
76
|
110
|
403
|
75
|
81
|
63
|
90
|
78
|
|
2025/02
|
72
|
63
|
54
|
57
|
44
|
51
|
56
|
64
|
72
|
67
|
91
|
106
|
105
|
71
|
62
|
81
|
85
|
72
|
75
|
71
|
74
|
79
|
60
|
70
|
76
|
74
|
76
|
77
|
|||
|
2025/01
|
86
|
74
|
88
|
82
|
118
|
135
|
65
|
69
|
71
|
67
|
68
|
85
|
93
|
68
|
70
|
92
|
83
|
68
|
98
|
104
|
90
|
98
|
120
|
92
|
74
|
90
|
87
|
148
|
241
|
140
|
88
|
|
2024/12
|
89
|
73
|
74
|
57
|
65
|
65
|
48
|
58
|
63
|
69
|
75
|
61
|
63
|
87
|
119
|
125
|
105
|
71
|
79
|
84
|
80
|
119
|
115
|
92
|
112
|
83
|
56
|
89
|
92
|
89
|
106
|
|
2024/11
|
63
|
60
|
65
|
70
|
73
|
74
|
71
|
70
|
61
|
74
|
62
|
61
|
64
|
83
|
77
|
56
|
53
|
48
|
58
|
77
|
83
|
99
|
83
|
48
|
50
|
72
|
84
|
75
|
88
|
95
|
|
|
2024/10
|
40
|
50
|
41
|
44
|
49
|
55
|
57
|
58
|
55
|
59
|
53
|
47
|
60
|
58
|
48
|
41
|
54
|
53
|
56
|
51
|
47
|
51
|
67
|
53
|
48
|
52
|
70
|
75
|
63
|
44
|
52
|
|
2024/09
|
45
|
45
|
38
|
35
|
23
|
26
|
36
|
47
|
32
|
36
|
38
|
42
|
29
|
43
|
48
|
38
|
52
|
54
|
47
|
44
|
41
|
46
|
45
|
57
|
45
|
43
|
56
|
54
|
36
|
33
|
|
|
2024/08
|
44
|
29
|
37
|
39
|
41
|
35
|
33
|
35
|
74
|
40
|
40
|
45
|
38
|
35
|
42
|
34
|
36
|
41
|
43
|
41
|
44
|
47
|
40
|
41
|
34
|
53
|
35
|
35
|
36
|
34
|
57
|
|
2024/07
|
32
|
39
|
38
|
49
|
39
|
52
|
48
|
36
|
59
|
66
|
62
|
67
|
47
|
29
|
23
|
33
|
35
|
42
|
32
|
105
|
274
|
77
|
54
|
100
|
69
|
54
|
47
|
45
|
33
|
40
|
41
|
|
2024/06
|
52
|
41
|
43
|
41
|
47
|
31
|
37
|
39
|
43
|
46
|
44
|
51
|
50
|
46
|
49
|
34
|
36
|
51
|
55
|
38
|
37
|
50
|
44
|
55
|
49
|
39
|
36
|
30
|
44
|
35
|
|
|
2024/05
|
46
|
31
|
34
|
54
|
63
|
71
|
62
|
48
|
42
|
63
|
52
|
49
|
43
|
55
|
109
|
73
|
74
|
55
|
74
|
76
|
52
|
47
|
59
|
145
|
66
|
56
|
48
|
37
|
33
|
35
|
60
|
|
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