Air Quality
Excellent
No health implications.
12
PM2.5
21
PM10
100
O3
0.6
CO
8
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Apr
81
Good
Fri
17 Apr
80
Good
Sat
18 Apr
77
Good
Sun
19 Apr
37
Excellent
Mon
20 Apr
40
Excellent
Tue
21 Apr
30
Excellent
Wed
22 Apr
29
Excellent
Air quality in the last 12 months (Gucheng)
|
2026/03
|
36
|
39
|
39
|
34
|
37
|
58
|
53
|
45
|
48
|
29
|
38
|
52
|
52
|
29
|
25
|
30
|
30
|
30
|
31
|
31
|
30
|
29
|
29
|
30
|
31
|
33
|
31
|
36
|
30
|
31
|
30
|
|
2026/02
|
24
|
19
|
18
|
16
|
19
|
24
|
27
|
25
|
20
|
23
|
24
|
22
|
24
|
22
|
28
|
36
|
41
|
36
|
50
|
42
|
28
|
49
|
29
|
30
|
26
|
25
|
25
|
30
|
|||
|
2026/01
|
33
|
22
|
19
|
17
|
18
|
25
|
24
|
27
|
26
|
25
|
27
|
23
|
29
|
30
|
31
|
26
|
35
|
31
|
28
|
18
|
21
|
30
|
32
|
27
|
22
|
26
|
23
|
23
|
25
|
25
|
24
|
|
2025/12
|
38
|
37
|
36
|
24
|
27
|
26
|
30
|
34
|
29
|
28
|
27
|
27
|
32
|
33
|
26
|
27
|
35
|
29
|
26
|
28
|
36
|
29
|
32
|
22
|
27
|
27
|
25
|
20
|
23
|
22
|
25
|
|
2025/11
|
14
|
16
|
8
|
12
|
22
|
14
|
14
|
20
|
20
|
15
|
19
|
24
|
27
|
26
|
26
|
32
|
28
|
32
|
28
|
22
|
23
|
21
|
20
|
22
|
25
|
34
|
30
|
32
|
30
|
28
|
|
|
2025/10
|
9
|
13
|
13
|
14
|
14
|
13
|
14
|
10
|
12
|
13
|
13
|
11
|
13
|
15
|
17
|
24
|
17
|
13
|
15
|
10
|
15
|
20
|
23
|
22
|
16
|
14
|
16
|
17
|
14
|
17
|
18
|
|
2025/09
|
20
|
14
|
15
|
12
|
16
|
13
|
20
|
17
|
20
|
22
|
18
|
17
|
13
|
20
|
26
|
18
|
14
|
17
|
16
|
16
|
15
|
14
|
12
|
16
|
23
|
20
|
11
|
16
|
12
|
10
|
|
|
2025/08
|
19
|
15
|
15
|
16
|
16
|
22
|
17
|
21
|
14
|
18
|
16
|
11
|
16
|
26
|
25
|
17
|
13
|
17
|
22
|
18
|
14
|
14
|
13
|
10
|
11
|
20
|
22
|
20
|
10
|
13
|
16
|
|
2025/07
|
19
|
17
|
14
|
13
|
10
|
11
|
11
|
12
|
15
|
16
|
22
|
18
|
19
|
27
|
20
|
23
|
22
|
27
|
15
|
20
|
17
|
18
|
16
|
13
|
14
|
11
|
9
|
14
|
22
|
22
|
13
|
|
2025/06
|
11
|
19
|
12
|
24
|
23
|
15
|
17
|
21
|
20
|
17
|
24
|
23
|
34
|
23
|
18
|
18
|
12
|
11
|
12
|
14
|
15
|
10
|
15
|
16
|
12
|
14
|
16
|
19
|
16
|
17
|
|
|
2025/05
|
21
|
20
|
21
|
13
|
15
|
16
|
17
|
18
|
26
|
29
|
21
|
29
|
22
|
21
|
22
|
24
|
27
|
26
|
24
|
17
|
14
|
21
|
24
|
12
|
13
|
23
|
15
|
15
|
12
|
15
|
14
|
|
2025/04
|
61
|
55
|
52
|
41
|
41
|
39
|
43
|
41
|
36
|
38
|
28
|
30
|
22
|
31
|
34
|
18
|
25
|
25
|
21
|
20
|
18
|
18
|
24
|
26
|
41
|
34
|
39
|
43
|
31
|
34
|
|
|
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