Air Quality
Excellent
No health implications.
18
PM2.5
42
PM10
88
O3
0.5
CO
7
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Jul
84
Good
Tue
15 Jul
76
Good
Wed
16 Jul
77
Good
Thu
17 Jul
69
Good
Fri
18 Jul
80
Good
Sat
19 Jul
87
Good
Sun
20 Jul
46
Excellent
Air quality in the last 12 months (Gucheng)
|
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
|
|
|
2024/10
|
35
|
51
|
51
|
48
|
62
|
41
|
36
|
56
|
54
|
49
|
65
|
63
|
52
|
53
|
52
|
78
|
46
|
21
|
28
|
32
|
32
|
21
|
30
|
50
|
54
|
54
|
38
|
53
|
66
|
64
|
53
|
|
2024/09
|
35
|
48
|
37
|
45
|
47
|
31
|
41
|
48
|
46
|
49
|
31
|
32
|
30
|
44
|
33
|
40
|
31
|
32
|
23
|
26
|
24
|
31
|
45
|
54
|
57
|
59
|
61
|
58
|
51
|
12
|
|
|
2024/08
|
21
|
23
|
24
|
22
|
20
|
19
|
21
|
29
|
35
|
84
|
77
|
33
|
30
|
32
|
38
|
30
|
31
|
24
|
15
|
30
|
21
|
31
|
43
|
37
|
37
|
37
|
20
|
26
|
34
|
36
|
39
|
|
2024/07
|
27
|
23
|
33
|
12
|
21
|
20
|
23
|
26
|
18
|
33
|
30
|
23
|
27
|
15
|
19
|
25
|
18
|
19
|
24
|
22
|
26
|
28
|
29
|
31
|
31
|
34
|
29
|
29
|
19
|
19
|
12
|
|
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