Air Quality
Excellent
No health implications.
29
PM2.5
42
PM10
75
O3
0.4
CO
9
SO2
39
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Apr
56
Good
Fri
19 Apr
62
Good
Sat
20 Apr
69
Good
Sun
21 Apr
65
Good
Mon
22 Apr
68
Good
Tue
23 Apr
79
Good
Wed
24 Apr
69
Good
Air quality in the last 12 months (Chengguan)
|
2024/02
|
89
|
96
|
88
|
102
|
96
|
62
|
68
|
94
|
86
|
135
|
80
|
77
|
77
|
55
|
58
|
65
|
105
|
296
|
113
|
281
|
161
|
109
|
114
|
188
|
148
|
96
|
107
|
94
|
65
|
||
|
2024/01
|
90
|
87
|
95
|
98
|
91
|
99
|
113
|
113
|
89
|
99
|
113
|
110
|
91
|
85
|
92
|
106
|
113
|
103
|
97
|
103
|
50
|
56
|
57
|
69
|
74
|
75
|
84
|
99
|
106
|
100
|
89
|
|
2023/12
|
80
|
100
|
100
|
105
|
198
|
306
|
92
|
76
|
81
|
73
|
69
|
80
|
91
|
79
|
60
|
74
|
83
|
61
|
95
|
91
|
72
|
80
|
71
|
98
|
117
|
126
|
134
|
131
|
119
|
103
|
89
|
|
2023/11
|
74
|
76
|
61
|
58
|
51
|
73
|
71
|
67
|
81
|
79
|
61
|
60
|
101
|
107
|
70
|
70
|
97
|
106
|
109
|
86
|
85
|
125
|
87
|
104
|
84
|
92
|
82
|
69
|
44
|
62
|
|
|
2023/10
|
37
|
48
|
51
|
45
|
31
|
44
|
50
|
52
|
48
|
45
|
36
|
41
|
41
|
53
|
62
|
57
|
45
|
51
|
45
|
61
|
62
|
63
|
68
|
82
|
60
|
55
|
67
|
69
|
73
|
80
|
83
|
|
2023/09
|
56
|
73
|
64
|
54
|
43
|
46
|
79
|
46
|
58
|
55
|
40
|
47
|
51
|
42
|
57
|
52
|
63
|
46
|
47
|
48
|
39
|
37
|
70
|
41
|
39
|
35
|
37
|
49
|
43
|
40
|
|
|
2023/08
|
33
|
44
|
41
|
51
|
58
|
39
|
41
|
29
|
29
|
44
|
36
|
50
|
57
|
37
|
36
|
162
|
74
|
53
|
53
|
58
|
57
|
49
|
42
|
55
|
39
|
35
|
42
|
46
|
39
|
45
|
46
|
|
2023/07
|
61
|
76
|
41
|
53
|
49
|
54
|
59
|
55
|
57
|
47
|
49
|
42
|
28
|
43
|
55
|
59
|
54
|
47
|
44
|
45
|
46
|
55
|
56
|
48
|
58
|
45
|
43
|
48
|
47
|
34
|
35
|
|
2023/06
|
77
|
43
|
31
|
34
|
47
|
51
|
46
|
56
|
48
|
55
|
57
|
39
|
53
|
52
|
44
|
36
|
42
|
72
|
64
|
54
|
53
|
46
|
49
|
54
|
47
|
128
|
56
|
60
|
60
|
53
|
|
|
2023/05
|
58
|
67
|
59
|
95
|
57
|
57
|
45
|
36
|
41
|
57
|
60
|
64
|
55
|
67
|
67
|
71
|
52
|
60
|
76
|
248
|
95
|
45
|
49
|
100
|
60
|
49
|
51
|
57
|
74
|
110
|
63
|
|
2023/04
|
60
|
128
|
58
|
68
|
111
|
130
|
100
|
91
|
97
|
156
|
172
|
131
|
105
|
43
|
63
|
76
|
92
|
93
|
294
|
467
|
125
|
71
|
47
|
56
|
56
|
78
|
78
|
65
|
63
|
68
|
|
|
2023/03
|
61
|
67
|
65
|
79
|
74
|
69
|
78
|
81
|
78
|
132
|
79
|
93
|
81
|
99
|
104
|
110
|
110
|
101
|
60
|
88
|
500
|
392
|
107
|
76
|
90
|
74
|
70
|
67
|
61
|
50
|
61
|
|
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