Air Quality
Excellent
No health implications.
11
PM2.5
30
PM10
21
O3
0.7
CO
10
SO2
19
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 Sep
46
Excellent
Wed
23 Sep
41
Excellent
Thu
24 Sep
38
Excellent
Fri
25 Sep
43
Excellent
Sat
26 Sep
45
Excellent
Sun
27 Sep
39
Excellent
Mon
28 Sep
32
Excellent
Air quality in the last 12 months (Helong)
|
2026/08
|
23
|
12
|
11
|
21
|
26
|
26
|
25
|
17
|
20
|
21
|
21
|
24
|
16
|
16
|
18
|
18
|
22
|
20
|
19
|
23
|
22
|
25
|
24
|
23
|
21
|
20
|
23
|
27
|
18
|
21
|
20
|
|
2026/07
|
25
|
16
|
17
|
23
|
28
|
21
|
17
|
16
|
21
|
19
|
19
|
18
|
18
|
13
|
17
|
22
|
28
|
27
|
25
|
18
|
19
|
26
|
28
|
17
|
13
|
14
|
11
|
17
|
24
|
24
|
23
|
|
2026/06
|
36
|
46
|
33
|
25
|
23
|
22
|
17
|
15
|
17
|
18
|
21
|
23
|
29
|
31
|
33
|
22
|
27
|
29
|
27
|
23
|
18
|
24
|
18
|
28
|
24
|
25
|
32
|
33
|
27
|
28
|
|
|
2026/05
|
40
|
36
|
28
|
33
|
34
|
37
|
24
|
25
|
29
|
32
|
37
|
41
|
36
|
30
|
38
|
46
|
43
|
30
|
32
|
29
|
28
|
29
|
29
|
26
|
38
|
35
|
24
|
22
|
25
|
27
|
33
|
|
2026/04
|
55
|
66
|
75
|
37
|
40
|
30
|
26
|
34
|
52
|
34
|
26
|
40
|
55
|
48
|
46
|
39
|
42
|
33
|
44
|
61
|
70
|
47
|
61
|
32
|
36
|
30
|
21
|
28
|
30
|
34
|
|
|
2026/03
|
33
|
50
|
38
|
59
|
62
|
42
|
27
|
36
|
39
|
46
|
55
|
72
|
82
|
60
|
112
|
111
|
129
|
213
|
40
|
48
|
91
|
162
|
111
|
68
|
78
|
83
|
88
|
78
|
61
|
43
|
37
|
|
2026/02
|
44
|
40
|
44
|
74
|
81
|
63
|
30
|
31
|
39
|
66
|
51
|
53
|
65
|
73
|
48
|
42
|
90
|
36
|
38
|
47
|
56
|
108
|
110
|
47
|
45
|
64
|
53
|
30
|
|||
|
2026/01
|
25
|
29
|
39
|
47
|
43
|
49
|
46
|
35
|
73
|
56
|
31
|
33
|
38
|
40
|
50
|
36
|
33
|
31
|
27
|
28
|
29
|
28
|
36
|
33
|
28
|
39
|
42
|
34
|
39
|
30
|
33
|
|
2025/12
|
39
|
25
|
22
|
30
|
38
|
68
|
66
|
26
|
39
|
57
|
29
|
36
|
34
|
43
|
61
|
43
|
34
|
52
|
58
|
39
|
34
|
40
|
58
|
30
|
28
|
23
|
37
|
78
|
48
|
23
|
27
|
|
2025/11
|
27
|
23
|
34
|
47
|
44
|
48
|
36
|
33
|
29
|
26
|
45
|
42
|
32
|
59
|
47
|
33
|
39
|
40
|
34
|
39
|
41
|
46
|
64
|
115
|
215
|
111
|
64
|
34
|
37
|
38
|
|
|
2025/10
|
23
|
33
|
31
|
32
|
23
|
20
|
25
|
37
|
25
|
26
|
17
|
23
|
31
|
49
|
38
|
42
|
28
|
18
|
17
|
22
|
29
|
31
|
37
|
41
|
45
|
42
|
42
|
59
|
62
|
42
|
25
|
|
2025/09
|
11
|
16
|
24
|
26
|
28
|
18
|
20
|
22
|
20
|
22
|
20
|
28
|
32
|
31
|
23
|
27
|
18
|
19
|
22
|
19
|
25
|
23
|
31
|
18
|
27
|
28
|
22
|
18
|
27
|
26
|
|
|
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