Air Quality
Excellent
No health implications.
29
PM2.5
34
PM10
85
O3
0.4
CO
7
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Apr
52
Good
Wed
1 May
55
Good
Thu
2 May
50
Excellent
Fri
3 May
53
Good
Sat
4 May
54
Good
Sun
5 May
53
Good
Air quality in the last 12 months (Dingcheng)
|
2024/02
|
72
|
35
|
56
|
74
|
114
|
112
|
113
|
116
|
136
|
130
|
115
|
107
|
84
|
55
|
67
|
68
|
55
|
67
|
181
|
18
|
24
|
33
|
42
|
47
|
52
|
74
|
86
|
94
|
85
|
||
|
2024/01
|
108
|
107
|
55
|
49
|
94
|
127
|
181
|
121
|
160
|
153
|
149
|
88
|
102
|
171
|
115
|
105
|
74
|
50
|
28
|
48
|
84
|
64
|
45
|
59
|
60
|
77
|
98
|
116
|
103
|
104
|
99
|
|
2023/12
|
49
|
59
|
84
|
60
|
54
|
84
|
61
|
60
|
80
|
60
|
23
|
50
|
64
|
15
|
28
|
41
|
45
|
49
|
67
|
86
|
92
|
73
|
82
|
100
|
92
|
105
|
184
|
246
|
257
|
167
|
129
|
|
2023/11
|
51
|
57
|
94
|
57
|
46
|
32
|
43
|
51
|
44
|
82
|
35
|
51
|
66
|
50
|
59
|
49
|
56
|
67
|
54
|
82
|
71
|
70
|
99
|
68
|
61
|
64
|
70
|
100
|
108
|
59
|
|
|
2023/10
|
33
|
26
|
21
|
32
|
33
|
39
|
29
|
44
|
50
|
51
|
58
|
81
|
54
|
47
|
57
|
81
|
92
|
105
|
73
|
29
|
55
|
67
|
78
|
97
|
88
|
40
|
38
|
37
|
54
|
48
|
48
|
|
2023/09
|
55
|
49
|
51
|
58
|
58
|
43
|
43
|
49
|
62
|
66
|
54
|
30
|
33
|
38
|
35
|
45
|
50
|
49
|
40
|
35
|
28
|
26
|
21
|
16
|
21
|
28
|
37
|
42
|
53
|
29
|
|
|
2023/08
|
28
|
23
|
33
|
37
|
34
|
38
|
27
|
35
|
40
|
46
|
50
|
55
|
34
|
37
|
44
|
46
|
46
|
60
|
67
|
58
|
52
|
34
|
47
|
57
|
74
|
57
|
31
|
32
|
42
|
46
|
52
|
|
2023/07
|
42
|
39
|
30
|
27
|
20
|
23
|
27
|
26
|
22
|
23
|
29
|
28
|
30
|
27
|
37
|
54
|
53
|
47
|
28
|
27
|
19
|
18
|
26
|
28
|
24
|
25
|
36
|
30
|
26
|
25
|
23
|
|
2023/06
|
40
|
51
|
47
|
42
|
28
|
29
|
33
|
48
|
44
|
47
|
53
|
41
|
42
|
60
|
51
|
37
|
41
|
28
|
23
|
24
|
33
|
35
|
33
|
29
|
36
|
41
|
28
|
23
|
29
|
24
|
|
|
2023/05
|
74
|
67
|
60
|
36
|
31
|
24
|
38
|
40
|
57
|
35
|
44
|
44
|
50
|
62
|
64
|
62
|
33
|
50
|
82
|
62
|
46
|
36
|
41
|
43
|
48
|
30
|
46
|
40
|
36
|
32
|
33
|
|
2023/04
|
56
|
53
|
31
|
24
|
29
|
33
|
63
|
82
|
70
|
68
|
66
|
226
|
138
|
85
|
63
|
69
|
65
|
38
|
63
|
68
|
71
|
27
|
20
|
20
|
29
|
36
|
48
|
53
|
115
|
111
|
|
|
2023/03
|
111
|
113
|
109
|
82
|
60
|
63
|
73
|
54
|
52
|
62
|
49
|
143
|
104
|
65
|
77
|
89
|
31
|
40
|
40
|
31
|
27
|
43
|
68
|
118
|
87
|
74
|
85
|
66
|
55
|
48
|
54
|
|
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