Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
40
PM2.5
68
*
PM10
49
O3
0.6
CO
12
SO2
22
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
10 Jan
87
Good
Sat
11 Jan
96
Good
Sun
12 Jan
78
Good
Mon
13 Jan
69
Good
Tue
14 Jan
59
Good
Wed
15 Jan
52
Good
Thu
16 Jan
99
Good
Helan Air quality rank
Air quality in the last 12 months (Helan)
|
2024/12
|
59
|
37
|
62
|
51
|
51
|
54
|
36
|
49
|
71
|
51
|
86
|
83
|
54
|
55
|
74
|
125
|
137
|
73
|
66
|
57
|
33
|
55
|
72
|
83
|
88
|
45
|
35
|
62
|
114
|
84
|
110
|
|
2024/11
|
81
|
94
|
58
|
47
|
58
|
81
|
103
|
136
|
102
|
67
|
61
|
65
|
75
|
83
|
80
|
42
|
42
|
50
|
70
|
111
|
91
|
75
|
109
|
57
|
33
|
61
|
58
|
40
|
46
|
58
|
|
|
2024/10
|
45
|
41
|
47
|
35
|
48
|
45
|
39
|
47
|
39
|
56
|
61
|
44
|
58
|
74
|
50
|
64
|
70
|
41
|
36
|
47
|
39
|
32
|
59
|
60
|
60
|
46
|
52
|
69
|
65
|
38
|
58
|
|
2024/09
|
36
|
33
|
41
|
30
|
40
|
35
|
35
|
37
|
47
|
47
|
28
|
38
|
23
|
22
|
24
|
47
|
53
|
66
|
65
|
48
|
23
|
30
|
56
|
53
|
36
|
42
|
70
|
71
|
52
|
49
|
|
|
2024/08
|
38
|
26
|
39
|
39
|
47
|
29
|
22
|
25
|
73
|
82
|
26
|
29
|
25
|
30
|
48
|
42
|
33
|
30
|
27
|
27
|
39
|
35
|
35
|
35
|
32
|
23
|
23
|
31
|
44
|
37
|
50
|
|
2024/07
|
38
|
41
|
35
|
40
|
66
|
56
|
34
|
35
|
46
|
43
|
54
|
54
|
56
|
36
|
31
|
27
|
27
|
33
|
32
|
91
|
166
|
68
|
78
|
202
|
53
|
41
|
37
|
31
|
35
|
50
|
48
|
|
2024/06
|
49
|
28
|
25
|
36
|
39
|
42
|
39
|
45
|
27
|
32
|
50
|
48
|
65
|
34
|
24
|
26
|
40
|
38
|
39
|
38
|
27
|
118
|
85
|
335
|
87
|
52
|
29
|
57
|
37
|
33
|
|
|
2024/05
|
39
|
39
|
24
|
35
|
41
|
52
|
33
|
55
|
31
|
118
|
86
|
34
|
43
|
135
|
56
|
72
|
81
|
76
|
173
|
66
|
60
|
49
|
50
|
83
|
63
|
40
|
37
|
41
|
62
|
41
|
35
|
|
2024/04
|
93
|
87
|
49
|
65
|
49
|
47
|
59
|
60
|
60
|
45
|
48
|
66
|
151
|
184
|
91
|
68
|
71
|
69
|
132
|
62
|
91
|
202
|
81
|
86
|
60
|
65
|
64
|
99
|
39
|
27
|
|
|
2024/03
|
48
|
52
|
70
|
90
|
74
|
87
|
85
|
54
|
81
|
97
|
75
|
55
|
69
|
102
|
154
|
85
|
52
|
79
|
53
|
55
|
92
|
114
|
87
|
53
|
50
|
51
|
52
|
43
|
67
|
61
|
65
|
|
2024/02
|
67
|
99
|
104
|
112
|
104
|
70
|
67
|
125
|
69
|
82
|
69
|
69
|
84
|
64
|
51
|
54
|
97
|
406
|
97
|
108
|
62
|
43
|
104
|
190
|
146
|
101
|
131
|
75
|
39
|
||
|
2024/01
|
87
|
60
|
68
|
82
|
54
|
33
|
63
|
112
|
56
|
82
|
137
|
165
|
126
|
54
|
69
|
135
|
204
|
148
|
96
|
65
|
34
|
49
|
40
|
55
|
85
|
87
|
76
|
100
|
107
|
121
|
77
|
|
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