Air Quality
Excellent
No health implications.
28
PM2.5
29
PM10
64
O3
0.7
CO
17
SO2
17
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Jan
82
Good
Sat
31 Jan
73
Good
Sun
1 Feb
58
Good
Mon
2 Feb
69
Good
Tue
3 Feb
75
Good
Wed
4 Feb
63
Good
Thu
5 Feb
16
Excellent
Air quality in the last 12 months (Guyang)
|
2025/12
|
37
|
30
|
52
|
38
|
65
|
89
|
70
|
55
|
81
|
68
|
40
|
52
|
78
|
85
|
161
|
81
|
78
|
104
|
57
|
27
|
55
|
69
|
61
|
44
|
52
|
67
|
64
|
52
|
50
|
26
|
45
|
|
2025/11
|
38
|
35
|
64
|
82
|
67
|
64
|
54
|
69
|
63
|
57
|
70
|
57
|
55
|
74
|
90
|
18
|
20
|
32
|
54
|
41
|
70
|
105
|
121
|
84
|
66
|
177
|
60
|
119
|
150
|
123
|
|
|
2025/10
|
60
|
42
|
42
|
50
|
59
|
54
|
32
|
25
|
31
|
40
|
28
|
43
|
61
|
60
|
35
|
44
|
15
|
26
|
25
|
34
|
42
|
53
|
56
|
90
|
30
|
19
|
48
|
70
|
68
|
37
|
28
|
|
2025/09
|
32
|
58
|
66
|
47
|
47
|
40
|
22
|
42
|
59
|
56
|
36
|
30
|
39
|
39
|
33
|
16
|
19
|
27
|
41
|
50
|
38
|
28
|
42
|
46
|
50
|
49
|
42
|
26
|
49
|
60
|
|
|
2025/08
|
32
|
34
|
34
|
41
|
46
|
31
|
28
|
22
|
31
|
27
|
45
|
48
|
30
|
41
|
40
|
20
|
36
|
25
|
18
|
29
|
37
|
39
|
31
|
37
|
31
|
30
|
25
|
41
|
38
|
44
|
40
|
|
2025/07
|
30
|
29
|
44
|
35
|
13
|
24
|
30
|
35
|
25
|
31
|
21
|
50
|
38
|
38
|
37
|
16
|
24
|
42
|
19
|
11
|
25
|
37
|
36
|
30
|
19
|
19
|
21
|
31
|
19
|
19
|
26
|
|
2025/06
|
28
|
23
|
20
|
23
|
33
|
30
|
23
|
27
|
29
|
25
|
46
|
52
|
31
|
19
|
15
|
21
|
38
|
38
|
15
|
24
|
29
|
30
|
35
|
42
|
42
|
30
|
39
|
34
|
42
|
31
|
|
|
2025/05
|
43
|
39
|
23
|
85
|
138
|
54
|
75
|
66
|
33
|
30
|
53
|
65
|
53
|
18
|
47
|
158
|
27
|
64
|
58
|
64
|
32
|
15
|
40
|
47
|
55
|
35
|
41
|
53
|
55
|
37
|
15
|
|
2025/04
|
33
|
34
|
106
|
58
|
44
|
80
|
48
|
48
|
47
|
59
|
175
|
48
|
45
|
22
|
56
|
158
|
34
|
41
|
58
|
65
|
56
|
63
|
51
|
36
|
50
|
59
|
14
|
41
|
67
|
44
|
|
|
2025/03
|
73
|
35
|
38
|
88
|
37
|
31
|
48
|
71
|
84
|
130
|
207
|
89
|
60
|
53
|
27
|
35
|
33
|
27
|
37
|
35
|
55
|
82
|
210
|
181
|
98
|
192
|
97
|
29
|
20
|
32
|
47
|
|
2025/02
|
92
|
25
|
15
|
30
|
44
|
67
|
19
|
27
|
54
|
68
|
67
|
75
|
78
|
87
|
89
|
28
|
47
|
22
|
23
|
24
|
33
|
18
|
26
|
63
|
57
|
67
|
78
|
71
|
|||
|
2025/01
|
76
|
28
|
53
|
69
|
68
|
32
|
40
|
19
|
38
|
58
|
58
|
42
|
71
|
20
|
58
|
72
|
90
|
76
|
70
|
96
|
71
|
72
|
108
|
94
|
112
|
116
|
22
|
73
|
275
|
181
|
90
|
|
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