Air Quality
Excellent
No health implications.
14
PM2.5
48
PM10
75
O3
0.2
CO
8
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 May
69
Good
Sat
24 May
67
Good
Sun
25 May
69
Good
Mon
26 May
67
Good
Tue
27 May
77
Good
Wed
28 May
86
Good
Thu
29 May
48
Excellent
Air quality in the last 12 months (Guazhou)
|
2025/04
|
135
|
251
|
126
|
56
|
100
|
111
|
104
|
69
|
54
|
77
|
47
|
34
|
45
|
101
|
134
|
76
|
134
|
78
|
85
|
84
|
80
|
72
|
46
|
45
|
53
|
43
|
54
|
61
|
73
|
51
|
|
|
2025/03
|
79
|
68
|
79
|
86
|
95
|
237
|
125
|
143
|
156
|
193
|
107
|
70
|
57
|
57
|
48
|
48
|
63
|
94
|
90
|
79
|
90
|
137
|
263
|
224
|
190
|
183
|
75
|
67
|
64
|
92
|
173
|
|
2025/02
|
74
|
43
|
40
|
37
|
29
|
35
|
43
|
43
|
61
|
79
|
68
|
67
|
57
|
59
|
92
|
93
|
78
|
76
|
74
|
62
|
69
|
120
|
55
|
84
|
102
|
112
|
103
|
89
|
|||
|
2025/01
|
67
|
72
|
82
|
88
|
62
|
72
|
65
|
61
|
63
|
73
|
69
|
58
|
44
|
41
|
43
|
52
|
59
|
66
|
62
|
67
|
70
|
70
|
66
|
75
|
105
|
68
|
74
|
93
|
140
|
90
|
84
|
|
2024/12
|
64
|
71
|
63
|
51
|
46
|
52
|
52
|
52
|
51
|
55
|
51
|
47
|
52
|
48
|
50
|
61
|
65
|
63
|
62
|
57
|
68
|
75
|
68
|
56
|
48
|
48
|
51
|
60
|
64
|
77
|
78
|
|
2024/11
|
59
|
62
|
54
|
59
|
64
|
66
|
67
|
73
|
70
|
57
|
50
|
54
|
60
|
84
|
41
|
50
|
59
|
63
|
60
|
62
|
71
|
69
|
59
|
54
|
32
|
42
|
51
|
48
|
58
|
65
|
|
|
2024/10
|
44
|
48
|
54
|
57
|
48
|
48
|
48
|
56
|
56
|
53
|
55
|
69
|
70
|
53
|
64
|
64
|
61
|
152
|
144
|
65
|
50
|
54
|
58
|
59
|
50
|
55
|
53
|
47
|
57
|
55
|
53
|
|
2024/09
|
51
|
70
|
64
|
40
|
40
|
39
|
55
|
168
|
60
|
56
|
48
|
66
|
40
|
56
|
50
|
45
|
46
|
49
|
57
|
47
|
49
|
54
|
65
|
49
|
54
|
57
|
53
|
61
|
43
|
40
|
|
|
2024/08
|
46
|
36
|
38
|
42
|
51
|
37
|
45
|
61
|
23
|
28
|
38
|
60
|
35
|
36
|
40
|
43
|
53
|
41
|
57
|
60
|
49
|
62
|
52
|
65
|
63
|
64
|
53
|
52
|
41
|
96
|
42
|
|
2024/07
|
36
|
30
|
111
|
48
|
61
|
62
|
119
|
103
|
88
|
57
|
41
|
39
|
30
|
36
|
23
|
28
|
34
|
52
|
123
|
88
|
44
|
44
|
49
|
35
|
35
|
37
|
49
|
37
|
40
|
36
|
39
|
|
2024/06
|
45
|
39
|
44
|
56
|
61
|
50
|
54
|
35
|
35
|
42
|
37
|
59
|
41
|
48
|
62
|
48
|
45
|
35
|
39
|
35
|
35
|
36
|
36
|
39
|
72
|
62
|
55
|
41
|
65
|
30
|
|
|
2024/05
|
49
|
56
|
74
|
86
|
62
|
64
|
87
|
80
|
66
|
45
|
37
|
46
|
82
|
315
|
490
|
493
|
386
|
122
|
220
|
135
|
96
|
191
|
70
|
59
|
59
|
74
|
95
|
72
|
38
|
34
|
33
|
|
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