Air Quality
Excellent
No health implications.
3
PM2.5
8
PM10
33
O3
0.4
CO
6
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
7 Sep
67
Good
Tue
8 Sep
50
Excellent
Wed
9 Sep
70
Good
Thu
10 Sep
76
Good
Fri
11 Sep
71
Good
Sat
12 Sep
70
Good
Sun
13 Sep
35
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