Air Quality
Excellent
No health implications.
9
PM2.5
15
PM10
35
O3
0.3
CO
3
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
9 Jul
54
Good
Thu
10 Jul
50
Excellent
Fri
11 Jul
55
Good
Sat
12 Jul
46
Excellent
Sun
13 Jul
39
Excellent
Mon
14 Jul
43
Excellent
Tue
15 Jul
36
Excellent
Air quality in the last 12 months (Huichuan)
|
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
|
|
|
2024/08
|
14
|
13
|
13
|
14
|
16
|
18
|
17
|
18
|
19
|
16
|
42
|
54
|
33
|
27
|
25
|
23
|
24
|
24
|
23
|
22
|
22
|
21
|
18
|
16
|
21
|
21
|
24
|
23
|
24
|
22
|
25
|
|
2024/07
|
18
|
20
|
14
|
17
|
18
|
17
|
18
|
19
|
18
|
18
|
19
|
18
|
17
|
18
|
15
|
16
|
21
|
18
|
13
|
14
|
14
|
14
|
17
|
16
|
16
|
24
|
26
|
21
|
15
|
15
|
14
|
|
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