Air Quality
Excellent
No health implications.
13
PM2.5
30
PM10
127
O3
0.3
CO
6
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
1 Jun
99
Good
Mon
2 Jun
89
Good
Tue
3 Jun
115
Light
Wed
4 Jun
99
Good
Thu
5 Jun
87
Good
Fri
6 Jun
67
Good
Sat
7 Jun
44
Excellent
Air quality in the last 12 months (Gaotai)
|
2025/04
|
303
|
172
|
238
|
84
|
140
|
163
|
169
|
105
|
75
|
75
|
209
|
146
|
33
|
64
|
117
|
101
|
191
|
63
|
74
|
61
|
80
|
62
|
42
|
42
|
53
|
50
|
65
|
82
|
151
|
77
|
|
|
2025/03
|
70
|
53
|
86
|
70
|
52
|
336
|
206
|
139
|
410
|
228
|
279
|
100
|
66
|
51
|
38
|
52
|
65
|
86
|
91
|
94
|
92
|
110
|
135
|
199
|
375
|
132
|
58
|
64
|
57
|
64
|
279
|
|
2025/02
|
56
|
43
|
37
|
36
|
33
|
29
|
48
|
59
|
58
|
61
|
93
|
64
|
42
|
52
|
105
|
79
|
78
|
88
|
82
|
74
|
77
|
75
|
59
|
88
|
78
|
64
|
70
|
77
|
|||
|
2025/01
|
88
|
66
|
80
|
95
|
46
|
54
|
65
|
67
|
64
|
84
|
102
|
75
|
71
|
44
|
42
|
44
|
75
|
54
|
52
|
44
|
86
|
80
|
77
|
65
|
128
|
80
|
69
|
73
|
77
|
51
|
48
|
|
2024/12
|
49
|
57
|
56
|
64
|
53
|
43
|
53
|
58
|
62
|
59
|
64
|
65
|
47
|
52
|
53
|
53
|
55
|
63
|
66
|
69
|
71
|
91
|
88
|
60
|
56
|
38
|
48
|
74
|
117
|
72
|
87
|
|
2024/11
|
74
|
79
|
65
|
68
|
62
|
62
|
71
|
78
|
91
|
102
|
66
|
69
|
65
|
142
|
151
|
60
|
65
|
69
|
58
|
59
|
66
|
76
|
90
|
60
|
30
|
49
|
40
|
44
|
49
|
49
|
|
|
2024/10
|
34
|
35
|
48
|
54
|
48
|
40
|
49
|
70
|
64
|
59
|
58
|
53
|
59
|
67
|
67
|
68
|
64
|
148
|
261
|
107
|
43
|
42
|
51
|
60
|
55
|
64
|
49
|
56
|
66
|
69
|
69
|
|
2024/09
|
33
|
52
|
91
|
14
|
23
|
20
|
26
|
60
|
57
|
42
|
31
|
44
|
37
|
52
|
53
|
38
|
31
|
39
|
30
|
26
|
34
|
46
|
43
|
77
|
66
|
43
|
60
|
52
|
42
|
35
|
|
|
2024/08
|
39
|
30
|
25
|
30
|
37
|
37
|
34
|
176
|
128
|
19
|
24
|
43
|
44
|
51
|
30
|
35
|
43
|
32
|
35
|
45
|
33
|
50
|
49
|
139
|
87
|
84
|
56
|
66
|
51
|
108
|
48
|
|
2024/07
|
26
|
29
|
122
|
135
|
71
|
57
|
81
|
293
|
129
|
73
|
70
|
48
|
42
|
28
|
21
|
30
|
42
|
51
|
89
|
264
|
79
|
49
|
45
|
25
|
27
|
37
|
38
|
49
|
42
|
41
|
38
|
|
2024/06
|
55
|
53
|
47
|
41
|
70
|
56
|
56
|
40
|
32
|
38
|
42
|
37
|
107
|
47
|
61
|
57
|
79
|
123
|
43
|
23
|
37
|
40
|
46
|
58
|
107
|
73
|
65
|
51
|
83
|
26
|
|
|
2024/05
|
54
|
66
|
73
|
90
|
82
|
94
|
84
|
115
|
84
|
41
|
26
|
58
|
55
|
295
|
500
|
500
|
480
|
174
|
261
|
148
|
110
|
146
|
97
|
105
|
92
|
85
|
118
|
85
|
44
|
28
|
30
|
|
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