Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
60
PM2.5
119
*
PM10
85
O3
1.0
CO
5
SO2
11
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
19 Feb
118
Light
Fri
20 Feb
146
Light
Sat
21 Feb
163
Moderate
Sun
22 Feb
123
Light
Mon
23 Feb
92
Good
Tue
24 Feb
163
Moderate
Wed
25 Feb
28
Excellent
Air quality in the last 12 months (Gaochang)
|
2026/01
|
158
|
157
|
144
|
147
|
176
|
198
|
190
|
212
|
189
|
202
|
182
|
178
|
180
|
174
|
184
|
181
|
136
|
108
|
85
|
97
|
102
|
100
|
107
|
140
|
158
|
143
|
141
|
148
|
158
|
137
|
128
|
|
2025/12
|
96
|
97
|
98
|
107
|
109
|
114
|
126
|
135
|
139
|
116
|
101
|
96
|
77
|
89
|
106
|
108
|
115
|
117
|
118
|
87
|
98
|
116
|
117
|
112
|
138
|
130
|
141
|
145
|
156
|
174
|
180
|
|
2025/11
|
89
|
90
|
89
|
92
|
107
|
121
|
52
|
69
|
69
|
73
|
78
|
93
|
88
|
89
|
74
|
77
|
87
|
95
|
116
|
104
|
113
|
117
|
115
|
79
|
89
|
94
|
88
|
106
|
95
|
86
|
|
|
2025/10
|
84
|
187
|
163
|
66
|
55
|
73
|
55
|
63
|
65
|
66
|
69
|
76
|
85
|
59
|
43
|
99
|
76
|
71
|
78
|
80
|
86
|
87
|
86
|
92
|
86
|
88
|
92
|
99
|
99
|
90
|
87
|
|
2025/09
|
201
|
64
|
94
|
263
|
82
|
78
|
87
|
80
|
110
|
86
|
56
|
57
|
74
|
70
|
129
|
51
|
47
|
56
|
68
|
75
|
80
|
65
|
52
|
52
|
22
|
36
|
49
|
59
|
60
|
66
|
|
|
2025/08
|
41
|
48
|
42
|
32
|
36
|
28
|
38
|
46
|
49
|
43
|
50
|
64
|
54
|
52
|
46
|
56
|
47
|
51
|
39
|
38
|
50
|
49
|
40
|
42
|
66
|
40
|
42
|
68
|
49
|
47
|
122
|
|
2025/07
|
53
|
49
|
35
|
33
|
51
|
65
|
42
|
35
|
26
|
38
|
45
|
52
|
48
|
55
|
53
|
64
|
61
|
48
|
42
|
58
|
73
|
43
|
52
|
50
|
66
|
55
|
53
|
58
|
82
|
63
|
64
|
|
2025/06
|
52
|
52
|
47
|
66
|
66
|
76
|
60
|
60
|
84
|
67
|
76
|
42
|
42
|
60
|
48
|
59
|
61
|
43
|
56
|
36
|
50
|
51
|
43
|
52
|
37
|
44
|
55
|
58
|
45
|
48
|
|
|
2025/05
|
120
|
272
|
50
|
139
|
66
|
57
|
102
|
161
|
59
|
57
|
90
|
87
|
44
|
38
|
44
|
41
|
50
|
54
|
215
|
95
|
43
|
36
|
50
|
74
|
68
|
73
|
128
|
445
|
89
|
68
|
60
|
|
2025/04
|
182
|
264
|
104
|
71
|
75
|
113
|
86
|
62
|
58
|
150
|
87
|
53
|
62
|
81
|
161
|
91
|
290
|
80
|
115
|
148
|
69
|
62
|
54
|
59
|
65
|
50
|
70
|
64
|
61
|
60
|
|
|
2025/03
|
129
|
77
|
63
|
84
|
145
|
74
|
101
|
117
|
97
|
226
|
215
|
103
|
251
|
205
|
67
|
56
|
82
|
113
|
107
|
95
|
88
|
137
|
154
|
167
|
263
|
500
|
165
|
153
|
102
|
96
|
92
|
|
2025/02
|
130
|
98
|
78
|
83
|
70
|
62
|
70
|
72
|
80
|
103
|
158
|
99
|
95
|
106
|
106
|
99
|
113
|
104
|
89
|
88
|
88
|
77
|
81
|
82
|
105
|
172
|
257
|
183
|
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1
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2
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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
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12
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13
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14
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15
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16
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17
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18
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19
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20
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21
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22
|
23
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24
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25
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26
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27
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28
|
29
|
30
|
31
|
- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
Air quality source: CNEMC
*: primary pollution