Air Quality
Excellent
No health implications.
13
PM2.5
23
PM10
31
O3
0.4
CO
7
SO2
25
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Nov
49
Excellent
Tue
18 Nov
49
Excellent
Wed
19 Nov
48
Excellent
Thu
20 Nov
76
Good
Fri
21 Nov
69
Good
Sat
22 Nov
89
Good
Sun
23 Nov
42
Excellent
Air quality in the last 12 months (Gucheng)
|
2025/10
|
20
|
8
|
17
|
18
|
16
|
13
|
22
|
24
|
27
|
18
|
18
|
23
|
15
|
25
|
25
|
31
|
15
|
27
|
47
|
36
|
34
|
48
|
57
|
89
|
58
|
38
|
52
|
63
|
102
|
80
|
48
|
|
2025/09
|
19
|
27
|
36
|
28
|
19
|
24
|
31
|
14
|
19
|
27
|
13
|
12
|
21
|
31
|
27
|
32
|
14
|
11
|
9
|
17
|
25
|
18
|
9
|
13
|
22
|
13
|
12
|
14
|
13
|
14
|
|
|
2025/08
|
31
|
32
|
35
|
43
|
41
|
40
|
29
|
31
|
21
|
16
|
18
|
22
|
14
|
22
|
24
|
18
|
23
|
23
|
29
|
21
|
24
|
29
|
27
|
27
|
27
|
29
|
33
|
30
|
20
|
20
|
14
|
|
2025/07
|
21
|
22
|
18
|
23
|
22
|
26
|
19
|
31
|
29
|
26
|
45
|
46
|
35
|
28
|
28
|
34
|
24
|
29
|
31
|
30
|
28
|
29
|
14
|
19
|
25
|
28
|
27
|
24
|
25
|
27
|
31
|
|
2025/06
|
27
|
27
|
36
|
37
|
38
|
39
|
33
|
23
|
29
|
38
|
39
|
33
|
41
|
35
|
44
|
52
|
42
|
25
|
11
|
19
|
25
|
31
|
29
|
27
|
21
|
13
|
24
|
27
|
21
|
25
|
|
|
2025/05
|
82
|
79
|
63
|
41
|
54
|
305
|
182
|
54
|
66
|
41
|
41
|
57
|
58
|
42
|
55
|
49
|
80
|
140
|
87
|
73
|
62
|
53
|
57
|
65
|
63
|
54
|
52
|
47
|
46
|
33
|
18
|
|
2025/04
|
62
|
64
|
61
|
67
|
80
|
76
|
68
|
60
|
61
|
49
|
51
|
242
|
148
|
79
|
60
|
69
|
68
|
73
|
57
|
53
|
48
|
103
|
101
|
75
|
70
|
62
|
58
|
49
|
52
|
56
|
|
|
2025/03
|
87
|
26
|
26
|
29
|
40
|
52
|
64
|
75
|
64
|
69
|
76
|
87
|
81
|
46
|
42
|
41
|
38
|
40
|
38
|
36
|
42
|
51
|
55
|
59
|
48
|
54
|
115
|
71
|
67
|
67
|
62
|
|
2025/02
|
67
|
65
|
59
|
49
|
49
|
39
|
95
|
53
|
58
|
68
|
83
|
80
|
74
|
75
|
61
|
64
|
75
|
61
|
83
|
82
|
83
|
82
|
88
|
93
|
65
|
75
|
87
|
94
|
|||
|
2025/01
|
108
|
128
|
120
|
124
|
55
|
67
|
63
|
56
|
60
|
62
|
65
|
72
|
84
|
83
|
65
|
56
|
68
|
83
|
83
|
87
|
123
|
180
|
120
|
56
|
45
|
49
|
62
|
83
|
170
|
140
|
108
|
|
2024/12
|
55
|
61
|
64
|
53
|
46
|
49
|
51
|
62
|
63
|
65
|
60
|
94
|
57
|
44
|
48
|
63
|
76
|
76
|
50
|
59
|
67
|
58
|
54
|
62
|
66
|
94
|
132
|
43
|
73
|
71
|
71
|
|
2024/11
|
56
|
44
|
45
|
48
|
56
|
64
|
67
|
74
|
58
|
59
|
70
|
72
|
55
|
59
|
51
|
20
|
14
|
27
|
29
|
21
|
28
|
43
|
69
|
61
|
30
|
34
|
44
|
46
|
39
|
51
|
|
|
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