Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
31
PM2.5
63
*
PM10
35
O3
0.8
CO
7
SO2
26
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
5 Oct
83
Good
Mon
6 Oct
82
Good
Tue
7 Oct
77
Good
Wed
8 Oct
66
Good
Thu
9 Oct
64
Good
Fri
10 Oct
58
Good
Sat
11 Oct
40
Excellent
He County Air quality rank
Air quality in the last 12 months (He County)
|
2025/08
|
15
|
17
|
24
|
28
|
45
|
28
|
23
|
24
|
31
|
24
|
19
|
30
|
42
|
28
|
28
|
32
|
39
|
39
|
39
|
35
|
36
|
29
|
22
|
34
|
33
|
24
|
41
|
37
|
41
|
35
|
19
|
|
2025/07
|
33
|
35
|
46
|
43
|
49
|
53
|
40
|
23
|
21
|
45
|
37
|
27
|
36
|
38
|
42
|
41
|
25
|
36
|
29
|
23
|
22
|
20
|
25
|
26
|
29
|
22
|
23
|
20
|
28
|
22
|
15
|
|
2025/06
|
16
|
14
|
42
|
63
|
50
|
48
|
27
|
17
|
34
|
28
|
48
|
36
|
28
|
30
|
24
|
38
|
48
|
35
|
17
|
20
|
14
|
19
|
31
|
29
|
39
|
40
|
25
|
15
|
18
|
27
|
|
|
2025/05
|
53
|
66
|
54
|
46
|
47
|
92
|
87
|
49
|
24
|
35
|
45
|
53
|
57
|
63
|
56
|
29
|
50
|
84
|
66
|
51
|
28
|
46
|
47
|
61
|
63
|
58
|
57
|
52
|
50
|
54
|
61
|
|
2025/04
|
50
|
66
|
47
|
68
|
77
|
71
|
68
|
76
|
75
|
73
|
76
|
206
|
103
|
82
|
56
|
59
|
68
|
70
|
87
|
57
|
53
|
62
|
64
|
79
|
64
|
59
|
50
|
59
|
61
|
65
|
|
|
2025/03
|
55
|
55
|
22
|
42
|
62
|
61
|
58
|
84
|
80
|
73
|
76
|
91
|
63
|
45
|
37
|
49
|
39
|
45
|
54
|
58
|
53
|
59
|
69
|
72
|
68
|
68
|
107
|
75
|
108
|
82
|
43
|
|
2025/02
|
43
|
66
|
91
|
84
|
56
|
49
|
65
|
39
|
47
|
60
|
73
|
112
|
77
|
94
|
116
|
97
|
73
|
56
|
67
|
62
|
47
|
69
|
94
|
80
|
93
|
125
|
89
|
59
|
|||
|
2025/01
|
97
|
105
|
112
|
115
|
130
|
90
|
56
|
77
|
44
|
53
|
66
|
75
|
89
|
115
|
73
|
67
|
79
|
86
|
106
|
122
|
125
|
150
|
111
|
58
|
35
|
71
|
55
|
52
|
113
|
68
|
96
|
|
2024/12
|
70
|
87
|
93
|
53
|
83
|
141
|
138
|
46
|
58
|
67
|
73
|
77
|
104
|
81
|
63
|
69
|
88
|
90
|
48
|
77
|
98
|
66
|
61
|
81
|
118
|
129
|
64
|
84
|
80
|
96
|
115
|
|
2024/11
|
29
|
56
|
69
|
72
|
43
|
42
|
40
|
38
|
48
|
38
|
51
|
54
|
52
|
61
|
77
|
53
|
31
|
32
|
28
|
39
|
48
|
87
|
34
|
40
|
42
|
37
|
63
|
57
|
46
|
63
|
|
|
2024/10
|
29
|
33
|
29
|
26
|
28
|
15
|
14
|
37
|
41
|
59
|
70
|
65
|
48
|
48
|
50
|
48
|
36
|
28
|
29
|
38
|
48
|
39
|
60
|
52
|
39
|
29
|
28
|
69
|
58
|
39
|
30
|
|
2024/09
|
53
|
53
|
32
|
39
|
37
|
44
|
46
|
50
|
31
|
39
|
21
|
18
|
36
|
47
|
32
|
28
|
22
|
25
|
29
|
25
|
26
|
30
|
30
|
37
|
51
|
46
|
30
|
44
|
44
|
45
|
|
|
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