Air Quality
Excellent
No health implications.
21
PM2.5
38
PM10
99
O3
0.7
CO
8
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Jul
72
Good
Sat
19 Jul
67
Good
Sun
20 Jul
66
Good
Mon
21 Jul
77
Good
Tue
22 Jul
78
Good
Wed
23 Jul
77
Good
Thu
24 Jul
40
Excellent
Huan County Air quality rank
Air quality in the last 12 months (Huan County)
|
2025/06
|
39
|
44
|
30
|
36
|
30
|
44
|
59
|
41
|
52
|
40
|
50
|
55
|
55
|
67
|
55
|
57
|
49
|
43
|
39
|
33
|
37
|
38
|
30
|
36
|
30
|
25
|
25
|
30
|
37
|
20
|
|
|
2025/05
|
109
|
145
|
64
|
129
|
315
|
209
|
97
|
119
|
107
|
48
|
44
|
54
|
78
|
72
|
60
|
120
|
209
|
70
|
57
|
56
|
80
|
138
|
44
|
48
|
36
|
33
|
43
|
49
|
41
|
72
|
37
|
|
2025/04
|
66
|
69
|
103
|
122
|
77
|
97
|
75
|
120
|
111
|
64
|
226
|
222
|
137
|
46
|
67
|
208
|
98
|
139
|
113
|
87
|
177
|
108
|
64
|
57
|
61
|
53
|
51
|
39
|
77
|
205
|
|
|
2025/03
|
79
|
42
|
38
|
38
|
51
|
44
|
72
|
73
|
126
|
64
|
278
|
151
|
87
|
50
|
63
|
41
|
42
|
34
|
44
|
58
|
59
|
67
|
159
|
249
|
180
|
392
|
150
|
117
|
52
|
62
|
60
|
|
2025/02
|
69
|
40
|
36
|
41
|
39
|
79
|
60
|
45
|
55
|
55
|
84
|
64
|
54
|
53
|
60
|
91
|
73
|
67
|
49
|
54
|
58
|
47
|
29
|
46
|
63
|
57
|
57
|
62
|
|||
|
2025/01
|
61
|
56
|
63
|
82
|
64
|
36
|
45
|
41
|
48
|
53
|
84
|
87
|
188
|
42
|
42
|
49
|
55
|
59
|
57
|
49
|
67
|
72
|
138
|
173
|
80
|
87
|
65
|
74
|
98
|
62
|
43
|
|
2024/12
|
43
|
44
|
58
|
44
|
42
|
39
|
36
|
34
|
58
|
55
|
68
|
58
|
56
|
43
|
53
|
53
|
66
|
42
|
56
|
49
|
36
|
48
|
57
|
81
|
67
|
60
|
38
|
45
|
63
|
57
|
52
|
|
2024/11
|
35
|
32
|
50
|
46
|
56
|
60
|
67
|
60
|
68
|
57
|
59
|
49
|
49
|
38
|
72
|
46
|
40
|
30
|
36
|
54
|
56
|
44
|
69
|
47
|
49
|
64
|
68
|
54
|
32
|
37
|
|
|
2024/10
|
50
|
38
|
43
|
30
|
45
|
45
|
39
|
52
|
53
|
50
|
49
|
47
|
46
|
50
|
50
|
55
|
43
|
34
|
16
|
36
|
24
|
30
|
39
|
42
|
51
|
51
|
41
|
38
|
45
|
31
|
36
|
|
2024/09
|
47
|
31
|
30
|
42
|
24
|
26
|
26
|
37
|
44
|
35
|
30
|
36
|
25
|
28
|
30
|
27
|
35
|
40
|
45
|
39
|
30
|
33
|
44
|
54
|
33
|
45
|
64
|
66
|
37
|
45
|
|
|
2024/08
|
25
|
30
|
23
|
23
|
27
|
22
|
13
|
19
|
94
|
203
|
40
|
34
|
35
|
29
|
43
|
34
|
32
|
26
|
28
|
30
|
32
|
37
|
39
|
39
|
34
|
23
|
20
|
30
|
36
|
37
|
48
|
|
2024/07
|
30
|
31
|
30
|
31
|
65
|
48
|
25
|
37
|
35
|
31
|
28
|
55
|
44
|
38
|
28
|
18
|
23
|
26
|
18
|
28
|
161
|
48
|
26
|
180
|
64
|
40
|
40
|
32
|
23
|
29
|
36
|
|
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