Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
28
PM2.5
56
*
PM10
15
O3
0.6
CO
6
SO2
62
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
16 Jul
87
Good
Thu
17 Jul
77
Good
Fri
18 Jul
74
Good
Sat
19 Jul
57
Good
Sun
20 Jul
77
Good
Mon
21 Jul
44
Excellent
Tue
22 Jul
24
Excellent
Chengguan Air quality rank
Air quality in the last 12 months (Chengguan)
|
2025/06
|
43
|
46
|
42
|
37
|
42
|
41
|
53
|
55
|
40
|
46
|
48
|
52
|
68
|
43
|
66
|
47
|
54
|
57
|
40
|
46
|
47
|
29
|
37
|
37
|
35
|
45
|
34
|
41
|
52
|
38
|
|
|
2025/05
|
58
|
135
|
112
|
122
|
112
|
155
|
109
|
43
|
48
|
49
|
48
|
58
|
81
|
41
|
49
|
55
|
192
|
56
|
60
|
57
|
65
|
57
|
45
|
40
|
38
|
53
|
50
|
36
|
41
|
107
|
75
|
|
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
|
|
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