Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
33
PM2.5
52
*
PM10
77
O3
0.5
CO
7
SO2
13
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
29 Apr
110
Lightly
Tue
30 Apr
81
Good
Wed
1 May
75
Good
Thu
2 May
79
Good
Fri
3 May
78
Good
Sat
4 May
68
Good
Sun
5 May
69
Good
Air quality in the last 12 months (Chengcheng)
|
2024/02
|
120
|
92
|
104
|
92
|
104
|
127
|
113
|
129
|
121
|
173
|
79
|
83
|
105
|
107
|
59
|
64
|
67
|
293
|
292
|
45
|
56
|
72
|
57
|
87
|
103
|
97
|
86
|
94
|
75
|
||
|
2024/01
|
90
|
91
|
78
|
92
|
92
|
72
|
69
|
110
|
109
|
79
|
109
|
144
|
175
|
112
|
75
|
75
|
106
|
112
|
68
|
96
|
35
|
25
|
48
|
54
|
57
|
77
|
91
|
91
|
105
|
134
|
165
|
|
2023/12
|
60
|
85
|
110
|
125
|
125
|
165
|
97
|
90
|
95
|
72
|
47
|
77
|
43
|
38
|
65
|
62
|
51
|
76
|
81
|
57
|
45
|
57
|
83
|
79
|
85
|
125
|
135
|
203
|
242
|
194
|
84
|
|
2023/11
|
74
|
79
|
75
|
56
|
52
|
52
|
67
|
77
|
77
|
57
|
52
|
55
|
60
|
89
|
89
|
129
|
72
|
80
|
95
|
94
|
144
|
107
|
77
|
64
|
67
|
98
|
90
|
80
|
64
|
41
|
|
|
2023/10
|
51
|
30
|
47
|
47
|
37
|
28
|
42
|
54
|
56
|
58
|
67
|
82
|
68
|
51
|
55
|
73
|
84
|
46
|
34
|
51
|
62
|
77
|
89
|
97
|
95
|
85
|
84
|
90
|
80
|
81
|
87
|
|
2023/09
|
45
|
47
|
48
|
47
|
49
|
57
|
56
|
57
|
52
|
47
|
43
|
31
|
43
|
47
|
47
|
44
|
47
|
39
|
38
|
41
|
39
|
41
|
33
|
25
|
34
|
35
|
36
|
46
|
38
|
50
|
|
|
2023/08
|
30
|
31
|
34
|
40
|
36
|
33
|
34
|
41
|
45
|
53
|
48
|
29
|
41
|
43
|
45
|
46
|
114
|
75
|
68
|
39
|
34
|
49
|
49
|
34
|
41
|
23
|
21
|
34
|
42
|
44
|
44
|
|
2023/07
|
46
|
45
|
31
|
37
|
63
|
66
|
61
|
66
|
74
|
59
|
49
|
34
|
30
|
53
|
45
|
49
|
51
|
49
|
49
|
49
|
52
|
60
|
54
|
46
|
38
|
36
|
41
|
32
|
46
|
29
|
27
|
|
2023/06
|
39
|
36
|
31
|
27
|
39
|
50
|
61
|
55
|
58
|
58
|
65
|
62
|
60
|
58
|
49
|
45
|
35
|
32
|
42
|
61
|
70
|
59
|
49
|
48
|
63
|
58
|
50
|
36
|
48
|
53
|
|
|
2023/05
|
71
|
69
|
54
|
41
|
71
|
29
|
31
|
44
|
50
|
58
|
56
|
61
|
63
|
63
|
63
|
55
|
64
|
59
|
53
|
89
|
51
|
36
|
47
|
39
|
47
|
57
|
34
|
20
|
22
|
29
|
42
|
|
2023/04
|
67
|
61
|
15
|
22
|
47
|
146
|
119
|
88
|
82
|
103
|
466
|
219
|
168
|
82
|
84
|
107
|
98
|
88
|
104
|
479
|
70
|
21
|
20
|
22
|
51
|
62
|
63
|
195
|
125
|
72
|
|
|
2023/03
|
80
|
85
|
94
|
92
|
88
|
97
|
104
|
106
|
100
|
85
|
217
|
128
|
101
|
102
|
82
|
47
|
42
|
62
|
68
|
63
|
98
|
178
|
160
|
171
|
102
|
88
|
84
|
75
|
69
|
71
|
73
|
|
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