Air Quality
Excellent
No health implications.
17
PM2.5
28
PM10
54
O3
0.3
CO
9
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
10 May
90
Good
Sun
11 May
84
Good
Mon
12 May
71
Good
Tue
13 May
73
Good
Wed
14 May
92
Good
Thu
15 May
45
Excellent
Fri
16 May
32
Excellent
Air quality in the last 12 months (Gaotai)
|
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
|
|
2024/04
|
156
|
68
|
127
|
91
|
59
|
55
|
90
|
75
|
58
|
49
|
106
|
102
|
425
|
285
|
97
|
93
|
107
|
72
|
49
|
33
|
58
|
73
|
51
|
61
|
60
|
348
|
321
|
47
|
53
|
36
|
|
|
2024/03
|
58
|
41
|
58
|
81
|
88
|
80
|
69
|
55
|
156
|
159
|
83
|
114
|
103
|
151
|
320
|
74
|
93
|
67
|
80
|
85
|
94
|
106
|
65
|
43
|
45
|
91
|
72
|
69
|
101
|
93
|
102
|
|
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