Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
67
*
PM2.5
95
PM10
50
O3
0.8
CO
5
SO2
19
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
12 Mar
103
Light
Thu
13 Mar
46
Excellent
Fri
14 Mar
48
Excellent
Sat
15 Mar
52
Good
Sun
16 Mar
52
Good
Mon
17 Mar
33
Excellent
Tue
18 Mar
36
Excellent
Air quality in the last 12 months (Helong)
|
2025/01
|
45
|
46
|
40
|
49
|
68
|
44
|
40
|
35
|
38
|
36
|
48
|
47
|
54
|
46
|
32
|
39
|
44
|
60
|
61
|
79
|
68
|
58
|
49
|
51
|
48
|
48
|
34
|
28
|
49
|
34
|
39
|
|
2024/12
|
44
|
22
|
26
|
29
|
25
|
30
|
26
|
32
|
42
|
36
|
25
|
39
|
44
|
43
|
42
|
33
|
46
|
33
|
45
|
51
|
38
|
34
|
32
|
36
|
49
|
67
|
34
|
37
|
35
|
58
|
39
|
|
2024/11
|
44
|
41
|
36
|
28
|
18
|
31
|
34
|
44
|
60
|
52
|
101
|
48
|
43
|
56
|
55
|
27
|
35
|
27
|
31
|
47
|
41
|
28
|
40
|
48
|
49
|
24
|
18
|
32
|
26
|
25
|
|
|
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
|
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14
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20
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22
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23
|
24
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25
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26
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27
|
28
|
29
|
30
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31
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- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
Air quality source: CNEMC
*: primary pollution