Air Quality
Excellent
No health implications.
33
PM2.5
36
PM10
87
O3
1.0
CO
3
SO2
21
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 May
113
Light
Fri
23 May
89
Good
Sat
24 May
86
Good
Sun
25 May
105
Light
Mon
26 May
99
Good
Tue
27 May
105
Light
Wed
28 May
46
Excellent
Air quality in the last 12 months (Guancheng)
|
2025/04
|
76
|
55
|
58
|
93
|
71
|
85
|
88
|
93
|
95
|
108
|
96
|
267
|
109
|
55
|
69
|
128
|
127
|
103
|
50
|
60
|
53
|
62
|
119
|
98
|
80
|
74
|
103
|
66
|
55
|
114
|
|
|
2025/03
|
67
|
41
|
39
|
47
|
100
|
92
|
80
|
83
|
99
|
85
|
94
|
130
|
151
|
62
|
75
|
44
|
42
|
55
|
55
|
41
|
43
|
66
|
86
|
287
|
107
|
138
|
101
|
163
|
60
|
56
|
73
|
|
2025/02
|
94
|
166
|
92
|
38
|
40
|
60
|
93
|
48
|
64
|
87
|
133
|
94
|
53
|
69
|
65
|
72
|
77
|
86
|
53
|
71
|
96
|
94
|
70
|
88
|
77
|
87
|
110
|
133
|
|||
|
2025/01
|
157
|
97
|
94
|
100
|
87
|
58
|
54
|
52
|
49
|
67
|
61
|
56
|
90
|
107
|
54
|
53
|
74
|
79
|
67
|
138
|
201
|
113
|
65
|
125
|
114
|
62
|
32
|
64
|
327
|
219
|
98
|
|
2024/12
|
48
|
53
|
65
|
129
|
44
|
46
|
72
|
62
|
73
|
88
|
111
|
121
|
71
|
58
|
45
|
47
|
96
|
57
|
53
|
84
|
64
|
54
|
97
|
135
|
122
|
109
|
71
|
47
|
61
|
68
|
94
|
|
2024/11
|
66
|
79
|
77
|
54
|
38
|
85
|
72
|
58
|
66
|
127
|
143
|
171
|
137
|
45
|
52
|
60
|
46
|
53
|
43
|
59
|
64
|
130
|
97
|
51
|
47
|
48
|
70
|
50
|
40
|
47
|
|
|
2024/10
|
58
|
41
|
51
|
54
|
55
|
85
|
128
|
154
|
144
|
79
|
90
|
109
|
96
|
109
|
120
|
82
|
58
|
16
|
29
|
26
|
52
|
49
|
45
|
70
|
83
|
100
|
113
|
128
|
133
|
138
|
193
|
|
2024/09
|
47
|
25
|
38
|
52
|
36
|
23
|
51
|
61
|
54
|
34
|
25
|
31
|
38
|
46
|
34
|
44
|
52
|
44
|
41
|
43
|
14
|
22
|
43
|
63
|
79
|
121
|
117
|
64
|
57
|
11
|
|
|
2024/08
|
33
|
33
|
30
|
32
|
37
|
21
|
22
|
33
|
34
|
133
|
81
|
32
|
32
|
34
|
43
|
44
|
38
|
27
|
35
|
21
|
31
|
45
|
53
|
49
|
43
|
36
|
16
|
23
|
38
|
38
|
40
|
|
2024/07
|
42
|
25
|
50
|
27
|
23
|
28
|
37
|
13
|
40
|
69
|
58
|
41
|
42
|
62
|
42
|
47
|
18
|
23
|
31
|
26
|
39
|
37
|
33
|
37
|
36
|
23
|
28
|
18
|
18
|
21
|
24
|
|
2024/06
|
65
|
66
|
62
|
77
|
54
|
71
|
52
|
61
|
56
|
59
|
58
|
68
|
62
|
61
|
50
|
33
|
40
|
54
|
51
|
49
|
36
|
47
|
67
|
101
|
98
|
66
|
57
|
52
|
33
|
49
|
|
|
2024/05
|
51
|
53
|
46
|
52
|
65
|
84
|
79
|
73
|
74
|
63
|
186
|
129
|
112
|
88
|
95
|
60
|
75
|
80
|
60
|
57
|
56
|
53
|
62
|
68
|
59
|
57
|
45
|
58
|
61
|
51
|
87
|
|
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