Air Quality
Excellent
No health implications.
7
PM2.5
23
PM10
63
O3
0.3
CO
8
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Nov
56
Good
Tue
18 Nov
56
Good
Wed
19 Nov
55
Good
Thu
20 Nov
59
Good
Fri
21 Nov
57
Good
Sat
22 Nov
60
Good
Sun
23 Nov
27
Excellent
Air quality in the last 12 months (Huachuan)
|
2025/10
|
29
|
30
|
49
|
40
|
24
|
40
|
35
|
25
|
40
|
47
|
50
|
37
|
50
|
52
|
47
|
38
|
38
|
16
|
23
|
28
|
29
|
37
|
44
|
89
|
221
|
177
|
93
|
34
|
76
|
90
|
60
|
|
2025/09
|
32
|
28
|
32
|
44
|
46
|
30
|
38
|
36
|
26
|
20
|
28
|
27
|
31
|
33
|
24
|
24
|
17
|
23
|
26
|
28
|
37
|
38
|
49
|
34
|
21
|
16
|
22
|
34
|
30
|
33
|
|
|
2025/08
|
31
|
24
|
20
|
16
|
19
|
20
|
17
|
21
|
31
|
13
|
16
|
22
|
28
|
23
|
26
|
23
|
24
|
34
|
18
|
20
|
35
|
18
|
15
|
23
|
23
|
19
|
31
|
38
|
28
|
20
|
36
|
|
2025/07
|
22
|
24
|
24
|
20
|
32
|
21
|
21
|
39
|
37
|
30
|
32
|
32
|
19
|
24
|
31
|
20
|
22
|
27
|
27
|
27
|
19
|
26
|
29
|
29
|
25
|
23
|
24
|
22
|
30
|
18
|
17
|
|
2025/06
|
35
|
31
|
23
|
22
|
24
|
22
|
22
|
26
|
27
|
20
|
22
|
26
|
31
|
30
|
24
|
33
|
21
|
40
|
45
|
25
|
19
|
25
|
35
|
42
|
51
|
46
|
47
|
57
|
31
|
28
|
|
|
2025/05
|
45
|
39
|
26
|
17
|
29
|
33
|
40
|
45
|
32
|
33
|
47
|
78
|
72
|
50
|
39
|
32
|
29
|
24
|
34
|
34
|
31
|
36
|
28
|
17
|
24
|
33
|
28
|
48
|
50
|
53
|
63
|
|
2025/04
|
64
|
60
|
68
|
63
|
55
|
54
|
57
|
58
|
59
|
91
|
102
|
73
|
66
|
36
|
39
|
36
|
98
|
69
|
32
|
29
|
54
|
40
|
51
|
47
|
37
|
20
|
31
|
26
|
40
|
40
|
|
|
2025/03
|
22
|
24
|
44
|
54
|
52
|
41
|
32
|
51
|
64
|
70
|
46
|
39
|
29
|
25
|
22
|
37
|
42
|
33
|
39
|
89
|
42
|
23
|
19
|
32
|
37
|
30
|
30
|
20
|
31
|
20
|
46
|
|
2025/02
|
72
|
93
|
106
|
59
|
25
|
24
|
46
|
46
|
34
|
39
|
67
|
75
|
43
|
42
|
54
|
28
|
19
|
30
|
50
|
39
|
37
|
23
|
25
|
41
|
58
|
30
|
60
|
56
|
|||
|
2025/01
|
91
|
91
|
86
|
81
|
77
|
64
|
69
|
78
|
48
|
55
|
87
|
112
|
120
|
103
|
49
|
51
|
86
|
111
|
107
|
117
|
106
|
140
|
113
|
125
|
122
|
131
|
72
|
36
|
48
|
48
|
52
|
|
2024/12
|
43
|
28
|
24
|
24
|
27
|
20
|
25
|
35
|
50
|
57
|
31
|
27
|
25
|
43
|
33
|
24
|
24
|
29
|
36
|
56
|
84
|
54
|
50
|
42
|
57
|
22
|
20
|
35
|
43
|
58
|
85
|
|
2024/11
|
81
|
42
|
59
|
34
|
57
|
14
|
41
|
64
|
66
|
48
|
66
|
41
|
98
|
120
|
65
|
46
|
18
|
19
|
63
|
79
|
78
|
32
|
38
|
58
|
68
|
27
|
31
|
33
|
50
|
21
|
|
|
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