Air Quality
Excellent
No health implications.
6
PM2.5
17
PM10
74
O3
0.5
CO
4
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 May
63
Good
Sat
24 May
70
Good
Sun
25 May
69
Good
Mon
26 May
60
Good
Tue
27 May
110
Light
Wed
28 May
17
Excellent
Thu
29 May
35
Excellent
Air quality in the last 12 months (Qitai)
|
2025/04
|
79
|
138
|
60
|
38
|
44
|
82
|
54
|
48
|
46
|
83
|
56
|
34
|
37
|
70
|
115
|
58
|
164
|
24
|
66
|
83
|
41
|
28
|
60
|
38
|
42
|
34
|
50
|
43
|
41
|
41
|
|
|
2025/03
|
85
|
53
|
44
|
60
|
84
|
45
|
69
|
84
|
69
|
195
|
114
|
67
|
123
|
119
|
42
|
32
|
60
|
70
|
71
|
63
|
57
|
82
|
121
|
119
|
179
|
485
|
109
|
91
|
68
|
57
|
52
|
|
2025/02
|
83
|
62
|
54
|
53
|
43
|
32
|
33
|
39
|
54
|
74
|
97
|
49
|
59
|
61
|
63
|
63
|
76
|
66
|
58
|
60
|
63
|
63
|
57
|
44
|
73
|
115
|
142
|
114
|
|||
|
2025/01
|
82
|
89
|
92
|
81
|
89
|
104
|
91
|
90
|
81
|
72
|
66
|
66
|
61
|
60
|
64
|
63
|
66
|
67
|
69
|
72
|
67
|
70
|
74
|
69
|
43
|
24
|
54
|
67
|
88
|
78
|
84
|
|
2024/12
|
76
|
71
|
70
|
70
|
74
|
59
|
64
|
72
|
75
|
63
|
60
|
51
|
56
|
55
|
64
|
77
|
63
|
72
|
79
|
87
|
70
|
72
|
84
|
72
|
72
|
70
|
63
|
70
|
71
|
84
|
94
|
|
2024/11
|
38
|
43
|
35
|
43
|
49
|
57
|
56
|
52
|
37
|
39
|
38
|
43
|
47
|
57
|
52
|
47
|
56
|
61
|
57
|
63
|
68
|
76
|
47
|
35
|
40
|
45
|
51
|
45
|
47
|
58
|
|
|
2024/10
|
33
|
40
|
54
|
49
|
38
|
33
|
43
|
45
|
36
|
38
|
49
|
61
|
62
|
41
|
50
|
56
|
72
|
69
|
34
|
41
|
34
|
36
|
41
|
46
|
36
|
35
|
43
|
47
|
34
|
27
|
31
|
|
2024/09
|
53
|
55
|
67
|
50
|
31
|
44
|
70
|
185
|
40
|
40
|
40
|
30
|
39
|
43
|
46
|
30
|
39
|
49
|
63
|
41
|
50
|
49
|
58
|
31
|
26
|
35
|
36
|
305
|
55
|
36
|
|
|
2024/08
|
34
|
23
|
37
|
39
|
43
|
65
|
29
|
21
|
28
|
32
|
49
|
31
|
26
|
23
|
25
|
29
|
40
|
39
|
72
|
73
|
32
|
33
|
34
|
49
|
65
|
46
|
51
|
36
|
37
|
114
|
58
|
|
2024/07
|
45
|
31
|
36
|
25
|
28
|
30
|
25
|
27
|
32
|
22
|
27
|
14
|
21
|
30
|
39
|
29
|
39
|
32
|
43
|
19
|
21
|
27
|
18
|
23
|
35
|
36
|
44
|
27
|
30
|
36
|
58
|
|
2024/06
|
36
|
32
|
41
|
40
|
32
|
20
|
23
|
35
|
36
|
29
|
33
|
47
|
33
|
39
|
35
|
31
|
35
|
35
|
24
|
50
|
39
|
34
|
33
|
35
|
41
|
80
|
83
|
48
|
39
|
44
|
|
|
2024/05
|
34
|
47
|
48
|
56
|
52
|
63
|
75
|
57
|
49
|
30
|
31
|
52
|
73
|
96
|
252
|
462
|
174
|
91
|
61
|
66
|
89
|
156
|
43
|
69
|
42
|
47
|
51
|
20
|
31
|
32
|
38
|
|
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