Air Quality
Excellent
No health implications.
20
PM2.5
23
PM10
100
O3
0.6
CO
10
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Jun
63
Good
Sun
15 Jun
61
Good
Mon
16 Jun
83
Good
Tue
17 Jun
83
Good
Wed
18 Jun
87
Good
Thu
19 Jun
82
Good
Fri
20 Jun
44
Excellent
Air quality in the last 12 months (Guyang)
|
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
|
|
2024/12
|
50
|
29
|
43
|
26
|
38
|
25
|
23
|
48
|
68
|
57
|
58
|
79
|
64
|
55
|
66
|
72
|
32
|
39
|
72
|
32
|
24
|
62
|
64
|
75
|
52
|
26
|
42
|
73
|
154
|
83
|
75
|
|
2024/11
|
75
|
79
|
30
|
27
|
51
|
66
|
80
|
84
|
79
|
46
|
67
|
63
|
73
|
91
|
87
|
66
|
47
|
61
|
61
|
84
|
68
|
67
|
88
|
64
|
34
|
48
|
43
|
41
|
48
|
59
|
|
|
2024/10
|
15
|
30
|
44
|
56
|
56
|
23
|
38
|
48
|
47
|
35
|
58
|
60
|
36
|
46
|
24
|
72
|
77
|
20
|
28
|
37
|
38
|
34
|
49
|
62
|
61
|
32
|
29
|
55
|
47
|
51
|
63
|
|
2024/09
|
15
|
24
|
45
|
29
|
15
|
22
|
28
|
45
|
46
|
28
|
24
|
33
|
19
|
14
|
28
|
22
|
31
|
50
|
51
|
10
|
11
|
29
|
47
|
46
|
31
|
45
|
56
|
58
|
19
|
28
|
|
|
2024/08
|
29
|
49
|
28
|
30
|
37
|
34
|
29
|
30
|
41
|
40
|
12
|
10
|
20
|
29
|
40
|
39
|
31
|
42
|
21
|
20
|
17
|
24
|
30
|
41
|
23
|
14
|
25
|
36
|
42
|
52
|
41
|
|
2024/07
|
20
|
30
|
38
|
28
|
53
|
48
|
38
|
45
|
54
|
46
|
55
|
37
|
36
|
47
|
44
|
13
|
27
|
27
|
52
|
45
|
113
|
58
|
35
|
47
|
40
|
29
|
19
|
20
|
32
|
26
|
19
|
|
2024/06
|
41
|
68
|
42
|
32
|
41
|
45
|
27
|
45
|
44
|
37
|
63
|
59
|
46
|
13
|
22
|
29
|
49
|
44
|
37
|
39
|
55
|
270
|
178
|
78
|
35
|
65
|
52
|
54
|
20
|
22
|
|
|
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