Air Quality
Excellent
No health implications.
33
PM2.5
50
PM10
29
O3
0.6
CO
6
SO2
28
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Oct
60
Good
Tue
27 Oct
44
Excellent
Wed
28 Oct
59
Good
Thu
29 Oct
65
Good
Fri
30 Oct
37
Excellent
Sat
31 Oct
45
Excellent
Sun
1 Nov
25
Excellent
Air quality in the last 12 months (Helan)
|
2026/08
|
36
|
39
|
38
|
49
|
44
|
27
|
26
|
31
|
36
|
35
|
29
|
31
|
31
|
39
|
49
|
33
|
36
|
39
|
48
|
47
|
38
|
37
|
33
|
37
|
33
|
27
|
31
|
27
|
36
|
38
|
53
|
|
2026/07
|
37
|
51
|
46
|
56
|
48
|
39
|
43
|
42
|
56
|
32
|
28
|
37
|
46
|
38
|
52
|
39
|
47
|
53
|
52
|
55
|
48
|
49
|
64
|
48
|
46
|
36
|
31
|
24
|
27
|
104
|
38
|
|
2026/06
|
54
|
55
|
47
|
40
|
43
|
34
|
28
|
37
|
30
|
39
|
35
|
42
|
40
|
38
|
43
|
52
|
41
|
37
|
37
|
32
|
36
|
34
|
36
|
43
|
30
|
41
|
56
|
68
|
52
|
41
|
|
|
2026/05
|
61
|
33
|
35
|
45
|
49
|
69
|
41
|
46
|
54
|
63
|
60
|
73
|
45
|
122
|
108
|
43
|
33
|
46
|
45
|
46
|
170
|
78
|
61
|
36
|
41
|
106
|
70
|
41
|
44
|
50
|
91
|
|
2026/04
|
48
|
51
|
178
|
68
|
117
|
58
|
58
|
47
|
65
|
50
|
55
|
127
|
74
|
67
|
61
|
55
|
54
|
96
|
248
|
87
|
63
|
57
|
80
|
68
|
56
|
55
|
163
|
41
|
38
|
63
|
|
|
2026/03
|
66
|
70
|
99
|
80
|
58
|
37
|
56
|
64
|
49
|
65
|
48
|
235
|
435
|
60
|
89
|
84
|
77
|
67
|
61
|
113
|
111
|
69
|
50
|
66
|
71
|
68
|
63
|
37
|
52
|
48
|
54
|
|
2026/02
|
87
|
66
|
80
|
74
|
59
|
51
|
39
|
60
|
86
|
75
|
81
|
88
|
85
|
95
|
32
|
34
|
72
|
52
|
52
|
143
|
280
|
328
|
130
|
103
|
104
|
56
|
76
|
89
|
|||
|
2026/01
|
73
|
99
|
72
|
78
|
44
|
42
|
55
|
57
|
94
|
37
|
44
|
115
|
66
|
194
|
80
|
74
|
96
|
83
|
24
|
41
|
57
|
78
|
100
|
79
|
252
|
125
|
119
|
104
|
73
|
97
|
120
|
|
2025/12
|
52
|
38
|
60
|
80
|
61
|
39
|
41
|
63
|
124
|
100
|
60
|
61
|
178
|
92
|
137
|
126
|
79
|
101
|
72
|
51
|
49
|
71
|
96
|
80
|
53
|
69
|
59
|
66
|
56
|
38
|
29
|
|
2025/11
|
57
|
56
|
79
|
80
|
51
|
59
|
46
|
79
|
88
|
75
|
69
|
59
|
60
|
61
|
95
|
51
|
20
|
38
|
53
|
66
|
77
|
73
|
97
|
91
|
66
|
168
|
79
|
90
|
99
|
60
|
|
|
2025/10
|
49
|
27
|
31
|
80
|
50
|
43
|
51
|
30
|
37
|
41
|
42
|
54
|
43
|
44
|
57
|
45
|
45
|
44
|
31
|
44
|
62
|
53
|
64
|
54
|
60
|
36
|
66
|
68
|
74
|
60
|
51
|
|
2025/09
|
37
|
86
|
60
|
37
|
71
|
69
|
57
|
56
|
50
|
38
|
30
|
41
|
55
|
67
|
58
|
30
|
21
|
28
|
32
|
26
|
22
|
34
|
27
|
47
|
41
|
46
|
53
|
44
|
55
|
53
|
|
|
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