Air Quality
Excellent
No health implications.
15
PM2.5
37
PM10
101
O3
0.5
CO
7
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 May
73
Good
Sat
23 May
95
Good
Sun
24 May
85
Good
Mon
25 May
59
Good
Tue
26 May
67
Good
Wed
27 May
82
Good
Thu
28 May
32
Excellent
Air quality in the last 12 months (Gucheng)
|
2026/04
|
118
|
74
|
73
|
61
|
89
|
51
|
44
|
53
|
48
|
52
|
64
|
67
|
59
|
70
|
74
|
60
|
71
|
77
|
69
|
85
|
62
|
34
|
52
|
49
|
49
|
57
|
63
|
44
|
44
|
52
|
|
|
2026/03
|
84
|
100
|
130
|
123
|
70
|
54
|
75
|
115
|
89
|
126
|
170
|
92
|
151
|
119
|
40
|
101
|
150
|
60
|
55
|
92
|
111
|
88
|
100
|
108
|
114
|
88
|
94
|
85
|
53
|
49
|
73
|
|
2026/02
|
216
|
167
|
129
|
156
|
146
|
50
|
53
|
66
|
83
|
94
|
124
|
107
|
130
|
144
|
47
|
63
|
210
|
108
|
75
|
67
|
178
|
162
|
64
|
79
|
56
|
73
|
71
|
73
|
|||
|
2026/01
|
60
|
64
|
143
|
194
|
202
|
141
|
49
|
71
|
119
|
75
|
48
|
74
|
74
|
116
|
162
|
93
|
45
|
37
|
36
|
32
|
59
|
110
|
131
|
195
|
120
|
91
|
156
|
232
|
87
|
79
|
192
|
|
2025/12
|
80
|
38
|
49
|
67
|
85
|
138
|
99
|
50
|
119
|
143
|
107
|
27
|
68
|
94
|
90
|
164
|
110
|
169
|
242
|
124
|
54
|
55
|
92
|
111
|
35
|
58
|
106
|
160
|
139
|
110
|
33
|
|
2025/11
|
73
|
39
|
66
|
90
|
97
|
139
|
87
|
70
|
70
|
76
|
96
|
102
|
83
|
94
|
166
|
123
|
36
|
49
|
58
|
63
|
74
|
122
|
114
|
159
|
38
|
135
|
75
|
148
|
159
|
198
|
|
|
2025/10
|
70
|
24
|
28
|
40
|
19
|
18
|
30
|
30
|
10
|
13
|
14
|
23
|
31
|
49
|
75
|
60
|
36
|
25
|
36
|
35
|
47
|
53
|
64
|
74
|
78
|
54
|
83
|
118
|
86
|
105
|
113
|
|
2025/09
|
34
|
38
|
50
|
52
|
44
|
48
|
59
|
61
|
43
|
49
|
58
|
47
|
59
|
56
|
45
|
41
|
26
|
36
|
23
|
37
|
54
|
32
|
33
|
39
|
55
|
59
|
28
|
51
|
60
|
64
|
|
|
2025/08
|
37
|
32
|
42
|
31
|
41
|
34
|
48
|
40
|
20
|
33
|
42
|
37
|
38
|
48
|
43
|
17
|
21
|
28
|
44
|
26
|
30
|
23
|
37
|
16
|
26
|
36
|
45
|
21
|
39
|
24
|
26
|
|
2025/07
|
14
|
22
|
28
|
38
|
32
|
23
|
29
|
31
|
43
|
57
|
49
|
51
|
46
|
35
|
48
|
33
|
35
|
36
|
53
|
42
|
42
|
21
|
14
|
33
|
38
|
36
|
30
|
42
|
30
|
31
|
25
|
|
2025/06
|
73
|
73
|
46
|
38
|
69
|
79
|
81
|
67
|
80
|
44
|
79
|
84
|
69
|
62
|
35
|
31
|
44
|
55
|
20
|
37
|
47
|
46
|
53
|
49
|
59
|
54
|
55
|
40
|
30
|
27
|
|
|
2025/05
|
52
|
67
|
36
|
54
|
93
|
48
|
74
|
72
|
35
|
33
|
54
|
60
|
63
|
56
|
35
|
80
|
118
|
76
|
92
|
73
|
67
|
71
|
63
|
52
|
51
|
58
|
57
|
67
|
63
|
65
|
65
|
|
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