Air Quality
Excellent
No health implications.
21
PM2.5
29
PM10
39
O3
0.5
CO
8
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Nov
63
Good
Sun
24 Nov
51
Good
Mon
25 Nov
43
Excellent
Tue
26 Nov
40
Excellent
Wed
27 Nov
42
Excellent
Thu
28 Nov
42
Excellent
Air quality in the last 12 months (Helong)
|
2024/10
|
8
|
19
|
23
|
22
|
25
|
43
|
17
|
26
|
30
|
32
|
28
|
32
|
33
|
32
|
18
|
21
|
39
|
36
|
30
|
29
|
38
|
44
|
20
|
31
|
38
|
50
|
39
|
27
|
31
|
42
|
46
|
|
2024/09
|
23
|
13
|
21
|
23
|
14
|
15
|
23
|
16
|
21
|
18
|
18
|
18
|
18
|
14
|
17
|
22
|
19
|
21
|
30
|
13
|
11
|
13
|
17
|
17
|
22
|
17
|
22
|
21
|
23
|
23
|
|
|
2024/08
|
21
|
20
|
19
|
16
|
14
|
14
|
17
|
25
|
25
|
22
|
11
|
11
|
19
|
30
|
22
|
18
|
17
|
23
|
22
|
10
|
12
|
13
|
12
|
28
|
35
|
25
|
18
|
19
|
24
|
23
|
17
|
|
2024/07
|
32
|
29
|
12
|
24
|
26
|
23
|
13
|
30
|
43
|
48
|
56
|
65
|
56
|
48
|
42
|
32
|
19
|
16
|
22
|
31
|
23
|
21
|
16
|
16
|
16
|
11
|
13
|
12
|
13
|
17
|
21
|
|
2024/06
|
14
|
13
|
15
|
23
|
21
|
21
|
23
|
20
|
16
|
18
|
31
|
24
|
20
|
13
|
15
|
19
|
28
|
20
|
34
|
30
|
33
|
13
|
11
|
18
|
11
|
19
|
26
|
44
|
39
|
31
|
|
|
2024/05
|
29
|
49
|
57
|
45
|
43
|
24
|
26
|
23
|
40
|
38
|
35
|
33
|
40
|
44
|
17
|
23
|
28
|
51
|
21
|
11
|
18
|
35
|
29
|
17
|
19
|
13
|
10
|
14
|
19
|
17
|
16
|
|
2024/04
|
75
|
65
|
57
|
38
|
32
|
51
|
55
|
52
|
44
|
58
|
48
|
41
|
43
|
48
|
41
|
182
|
64
|
52
|
62
|
79
|
45
|
35
|
26
|
18
|
53
|
62
|
48
|
27
|
20
|
23
|
|
|
2024/03
|
67
|
47
|
42
|
45
|
38
|
37
|
38
|
45
|
32
|
48
|
65
|
33
|
52
|
54
|
117
|
52
|
46
|
37
|
37
|
30
|
30
|
37
|
32
|
34
|
26
|
35
|
40
|
67
|
90
|
54
|
56
|
|
2024/02
|
39
|
36
|
36
|
35
|
41
|
37
|
41
|
41
|
48
|
120
|
55
|
62
|
72
|
67
|
41
|
40
|
50
|
67
|
39
|
29
|
28
|
32
|
36
|
75
|
91
|
53
|
53
|
51
|
56
|
||
|
2024/01
|
84
|
79
|
71
|
77
|
43
|
33
|
25
|
46
|
43
|
47
|
47
|
32
|
44
|
43
|
32
|
42
|
45
|
40
|
41
|
34
|
26
|
37
|
27
|
33
|
36
|
42
|
52
|
52
|
61
|
71
|
50
|
|
2023/12
|
36
|
45
|
43
|
74
|
77
|
65
|
25
|
50
|
41
|
22
|
22
|
31
|
45
|
29
|
24
|
29
|
28
|
42
|
44
|
41
|
36
|
42
|
52
|
60
|
71
|
39
|
47
|
50
|
70
|
86
|
75
|
|
2023/11
|
41
|
37
|
33
|
37
|
31
|
17
|
22
|
29
|
25
|
20
|
20
|
30
|
26
|
37
|
44
|
42
|
24
|
34
|
30
|
34
|
52
|
63
|
25
|
20
|
27
|
30
|
42
|
26
|
25
|
24
|
|
|
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