Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
34
PM2.5
147
*
PM10
76
O3
0.5
CO
8
SO2
12
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
15 Feb
59
Good
Mon
16 Feb
92
Good
Tue
17 Feb
140
Light
Wed
18 Feb
83
Good
Thu
19 Feb
79
Good
Fri
20 Feb
20
Excellent
Sat
21 Feb
45
Excellent
Chengguan Air quality rank
Air quality in the last 12 months (Chengguan)
|
2026/01
|
78
|
79
|
84
|
69
|
54
|
68
|
78
|
75
|
65
|
66
|
79
|
100
|
80
|
104
|
79
|
103
|
99
|
79
|
55
|
54
|
63
|
67
|
96
|
141
|
500
|
471
|
218
|
163
|
121
|
92
|
105
|
|
2025/12
|
90
|
65
|
69
|
73
|
82
|
100
|
76
|
70
|
84
|
87
|
99
|
86
|
73
|
81
|
97
|
88
|
88
|
97
|
63
|
48
|
85
|
92
|
50
|
53
|
56
|
69
|
88
|
105
|
94
|
104
|
72
|
|
2025/11
|
68
|
67
|
58
|
60
|
26
|
24
|
103
|
82
|
86
|
60
|
60
|
65
|
64
|
65
|
72
|
65
|
43
|
49
|
64
|
77
|
79
|
83
|
136
|
66
|
70
|
123
|
143
|
71
|
74
|
85
|
|
|
2025/10
|
32
|
37
|
52
|
63
|
57
|
45
|
37
|
32
|
41
|
33
|
31
|
33
|
50
|
51
|
51
|
54
|
39
|
50
|
56
|
52
|
41
|
39
|
28
|
39
|
48
|
42
|
60
|
62
|
67
|
64
|
67
|
|
2025/09
|
40
|
62
|
62
|
61
|
61
|
97
|
79
|
67
|
57
|
51
|
41
|
44
|
63
|
70
|
133
|
76
|
33
|
26
|
40
|
36
|
48
|
60
|
39
|
50
|
41
|
42
|
44
|
44
|
49
|
51
|
|
|
2025/08
|
52
|
39
|
41
|
27
|
38
|
47
|
37
|
23
|
38
|
52
|
47
|
38
|
48
|
39
|
45
|
46
|
34
|
33
|
40
|
99
|
27
|
35
|
31
|
43
|
37
|
26
|
37
|
32
|
37
|
50
|
49
|
|
2025/07
|
51
|
54
|
48
|
36
|
36
|
31
|
37
|
29
|
41
|
37
|
33
|
30
|
34
|
41
|
52
|
55
|
48
|
51
|
75
|
34
|
42
|
36
|
41
|
40
|
38
|
44
|
43
|
39
|
42
|
35
|
58
|
|
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
|
|||
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1
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2
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3
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4
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5
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6
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7
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8
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9
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10
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11
|
12
|
13
|
14
|
15
|
16
|
17
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18
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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