Air Quality
Excellent
No health implications.
6
PM2.5
9
PM10
28
O3
0.8
CO
7
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Sep
44
Excellent
Sun
27 Sep
38
Excellent
Mon
28 Sep
42
Excellent
Tue
29 Sep
42
Excellent
Wed
30 Sep
39
Excellent
Thu
1 Oct
41
Excellent
Fri
2 Oct
42
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