Air Quality
Excellent
No health implications.
18
PM2.5
22
PM10
57
O3
0.9
CO
8
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Mar
33
Excellent
Thu
20 Mar
30
Excellent
Fri
21 Mar
39
Excellent
Sat
22 Mar
30
Excellent
Sun
23 Mar
33
Excellent
Mon
24 Mar
30
Excellent
Tue
25 Mar
44
Excellent
Air quality in the last 12 months (Gucheng)
|
2025/02
|
24
|
27
|
45
|
43
|
28
|
27
|
30
|
25
|
22
|
22
|
23
|
25
|
29
|
29
|
21
|
30
|
24
|
32
|
16
|
19
|
21
|
22
|
31
|
28
|
28
|
18
|
16
|
23
|
|||
|
2025/01
|
29
|
33
|
45
|
41
|
41
|
30
|
22
|
27
|
29
|
25
|
31
|
29
|
21
|
23
|
40
|
57
|
34
|
18
|
21
|
33
|
57
|
36
|
22
|
16
|
17
|
23
|
28
|
50
|
56
|
22
|
19
|
|
2024/12
|
19
|
16
|
18
|
21
|
20
|
23
|
22
|
22
|
18
|
22
|
25
|
33
|
24
|
20
|
18
|
22
|
22
|
35
|
24
|
20
|
26
|
20
|
26
|
31
|
25
|
34
|
32
|
45
|
22
|
24
|
24
|
|
2024/11
|
30
|
35
|
27
|
28
|
18
|
24
|
14
|
11
|
16
|
23
|
20
|
18
|
21
|
23
|
26
|
32
|
36
|
25
|
20
|
21
|
16
|
22
|
17
|
16
|
20
|
22
|
21
|
24
|
21
|
19
|
|
|
2024/10
|
15
|
13
|
19
|
22
|
17
|
17
|
17
|
17
|
16
|
18
|
15
|
13
|
15
|
21
|
20
|
14
|
15
|
20
|
26
|
20
|
27
|
26
|
20
|
14
|
15
|
22
|
21
|
41
|
33
|
20
|
20
|
|
2024/09
|
16
|
18
|
21
|
17
|
14
|
20
|
25
|
24
|
20
|
14
|
16
|
16
|
23
|
28
|
22
|
22
|
19
|
18
|
23
|
24
|
27
|
24
|
25
|
30
|
28
|
20
|
20
|
12
|
14
|
19
|
|
|
2024/08
|
16
|
26
|
19
|
12
|
15
|
24
|
22
|
17
|
14
|
13
|
15
|
23
|
16
|
30
|
35
|
22
|
24
|
16
|
15
|
20
|
24
|
27
|
31
|
31
|
26
|
24
|
25
|
23
|
29
|
30
|
16
|
|
2024/07
|
14
|
21
|
17
|
16
|
15
|
17
|
16
|
15
|
13
|
14
|
20
|
13
|
22
|
20
|
20
|
18
|
17
|
20
|
19
|
20
|
16
|
21
|
13
|
16
|
14
|
19
|
24
|
24
|
20
|
14
|
15
|
|
2024/06
|
33
|
24
|
21
|
19
|
26
|
29
|
21
|
23
|
30
|
21
|
27
|
17
|
16
|
14
|
14
|
19
|
16
|
16
|
20
|
21
|
18
|
22
|
19
|
14
|
13
|
23
|
22
|
15
|
15
|
10
|
|
|
2024/05
|
37
|
28
|
33
|
40
|
45
|
32
|
31
|
28
|
29
|
23
|
27
|
24
|
30
|
26
|
25
|
29
|
25
|
32
|
34
|
18
|
28
|
25
|
17
|
28
|
24
|
19
|
16
|
20
|
18
|
28
|
40
|
|
2024/04
|
20
|
33
|
44
|
40
|
33
|
37
|
34
|
37
|
41
|
35
|
30
|
34
|
42
|
44
|
37
|
48
|
41
|
31
|
33
|
30
|
22
|
37
|
54
|
36
|
27
|
34
|
43
|
41
|
23
|
41
|
|
|
2024/03
|
22
|
22
|
21
|
23
|
20
|
22
|
19
|
24
|
17
|
21
|
30
|
38
|
44
|
41
|
40
|
37
|
38
|
35
|
38
|
37
|
35
|
24
|
17
|
24
|
24
|
33
|
25
|
25
|
28
|
28
|
26
|
|
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