Air Quality
Excellent
No health implications.
11
PM2.5
25
PM10
92
O3
0.3
CO
8
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Jul
99
Good
Tue
28 Jul
90
Good
Wed
29 Jul
83
Good
Thu
30 Jul
91
Good
Fri
31 Jul
96
Good
Sat
1 Aug
98
Good
Sun
2 Aug
25
Excellent
Air quality in the last 12 months (Gucheng)
|
2026/06
|
85
|
89
|
84
|
36
|
33
|
29
|
33
|
55
|
43
|
53
|
49
|
75
|
56
|
58
|
62
|
54
|
55
|
62
|
38
|
41
|
41
|
54
|
65
|
63
|
48
|
45
|
74
|
72
|
64
|
67
|
|
|
2026/05
|
64
|
43
|
30
|
40
|
58
|
55
|
55
|
54
|
65
|
56
|
65
|
74
|
57
|
74
|
61
|
50
|
51
|
29
|
29
|
25
|
42
|
46
|
41
|
62
|
24
|
27
|
43
|
45
|
47
|
64
|
70
|
|
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
|
|
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