Air Quality
Excellent
No health implications.
10
PM2.5
17
PM10
24
O3
0.1
CO
3
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Sep
23
Excellent
Wed
1 Oct
34
Excellent
Thu
2 Oct
40
Excellent
Fri
3 Oct
35
Excellent
Sat
4 Oct
39
Excellent
Sun
5 Oct
41
Excellent
Mon
6 Oct
40
Excellent
Air quality in the last 12 months (Huichuan)
|
2025/08
|
30
|
31
|
33
|
30
|
40
|
31
|
34
|
25
|
25
|
25
|
19
|
19
|
25
|
23
|
17
|
20
|
23
|
23
|
19
|
20
|
24
|
20
|
25
|
26
|
25
|
27
|
26
|
25
|
42
|
49
|
43
|
|
2025/07
|
29
|
24
|
24
|
24
|
27
|
31
|
30
|
34
|
30
|
26
|
26
|
31
|
34
|
32
|
35
|
32
|
31
|
36
|
32
|
35
|
31
|
32
|
22
|
24
|
26
|
29
|
30
|
31
|
27
|
31
|
29
|
|
2025/06
|
18
|
22
|
23
|
29
|
22
|
27
|
37
|
37
|
26
|
29
|
34
|
32
|
34
|
31
|
32
|
28
|
23
|
23
|
18
|
21
|
30
|
22
|
22
|
22
|
25
|
19
|
26
|
23
|
24
|
29
|
|
|
2025/05
|
36
|
50
|
43
|
30
|
31
|
25
|
26
|
20
|
30
|
36
|
41
|
33
|
40
|
45
|
41
|
44
|
33
|
34
|
45
|
45
|
28
|
22
|
29
|
35
|
38
|
42
|
24
|
19
|
22
|
24
|
17
|
|
2025/04
|
50
|
57
|
55
|
60
|
62
|
69
|
62
|
75
|
75
|
65
|
63
|
118
|
214
|
92
|
75
|
68
|
51
|
57
|
35
|
23
|
35
|
31
|
32
|
24
|
36
|
33
|
22
|
30
|
33
|
17
|
|
|
2025/03
|
51
|
92
|
60
|
37
|
34
|
39
|
44
|
42
|
45
|
46
|
39
|
65
|
58
|
44
|
38
|
40
|
36
|
33
|
39
|
47
|
60
|
65
|
69
|
60
|
68
|
59
|
65
|
65
|
33
|
35
|
46
|
|
2025/02
|
41
|
29
|
40
|
44
|
50
|
37
|
36
|
54
|
48
|
60
|
59
|
78
|
53
|
31
|
40
|
46
|
47
|
47
|
37
|
32
|
36
|
32
|
42
|
42
|
35
|
54
|
49
|
60
|
|||
|
2025/01
|
82
|
81
|
86
|
79
|
95
|
85
|
59
|
54
|
39
|
47
|
53
|
47
|
50
|
73
|
62
|
73
|
61
|
59
|
55
|
85
|
85
|
86
|
92
|
56
|
32
|
35
|
44
|
56
|
163
|
62
|
47
|
|
2024/12
|
70
|
82
|
50
|
40
|
28
|
37
|
36
|
43
|
30
|
24
|
34
|
42
|
54
|
56
|
51
|
58
|
60
|
64
|
70
|
87
|
102
|
65
|
63
|
71
|
78
|
61
|
83
|
74
|
75
|
47
|
67
|
|
2024/11
|
49
|
34
|
51
|
47
|
47
|
55
|
55
|
52
|
46
|
40
|
46
|
48
|
59
|
45
|
61
|
46
|
28
|
24
|
23
|
25
|
22
|
29
|
28
|
20
|
27
|
26
|
31
|
35
|
34
|
51
|
|
|
2024/10
|
25
|
25
|
32
|
35
|
35
|
38
|
40
|
30
|
31
|
47
|
54
|
51
|
31
|
23
|
25
|
22
|
20
|
28
|
22
|
20
|
18
|
21
|
26
|
27
|
38
|
36
|
50
|
41
|
40
|
41
|
54
|
|
2024/09
|
26
|
25
|
22
|
22
|
22
|
33
|
30
|
21
|
21
|
24
|
30
|
32
|
29
|
30
|
21
|
36
|
24
|
24
|
26
|
33
|
28
|
22
|
35
|
35
|
38
|
51
|
39
|
35
|
25
|
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