Air Quality
Excellent
No health implications.
3
PM2.5
13
PM10
6
O3
0.6
CO
6
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Aug
39
Excellent
Tue
19 Aug
44
Excellent
Wed
20 Aug
41
Excellent
Thu
21 Aug
37
Excellent
Fri
22 Aug
37
Excellent
Sat
23 Aug
29
Excellent
Sun
24 Aug
47
Excellent
Helong Air quality rank
Air quality in the last 12 months (Helong)
|
2025/06
|
44
|
39
|
22
|
15
|
37
|
43
|
41
|
22
|
40
|
18
|
16
|
22
|
39
|
38
|
38
|
15
|
17
|
29
|
32
|
19
|
18
|
26
|
30
|
40
|
39
|
34
|
42
|
47
|
42
|
28
|
|
|
2025/05
|
21
|
22
|
16
|
13
|
18
|
23
|
40
|
49
|
44
|
18
|
24
|
39
|
55
|
48
|
22
|
28
|
20
|
23
|
21
|
21
|
36
|
46
|
22
|
38
|
27
|
21
|
31
|
27
|
36
|
40
|
40
|
|
2025/04
|
53
|
42
|
31
|
37
|
35
|
27
|
22
|
34
|
40
|
44
|
51
|
38
|
14
|
14
|
23
|
22
|
30
|
32
|
28
|
23
|
34
|
18
|
19
|
40
|
55
|
53
|
59
|
40
|
60
|
42
|
|
|
2025/03
|
98
|
23
|
24
|
31
|
33
|
44
|
49
|
46
|
65
|
75
|
95
|
96
|
61
|
34
|
48
|
29
|
35
|
39
|
50
|
46
|
57
|
31
|
33
|
61
|
86
|
45
|
35
|
27
|
26
|
28
|
40
|
|
2025/02
|
45
|
53
|
44
|
31
|
33
|
23
|
27
|
24
|
32
|
35
|
52
|
56
|
47
|
53
|
54
|
58
|
33
|
29
|
27
|
29
|
32
|
32
|
29
|
47
|
119
|
91
|
72
|
78
|
|||
|
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
|
|
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