Air Quality
Excellent
No health implications.
15
PM2.5
25
PM10
76
O3
0.6
CO
4
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Jun
55
Good
Sun
15 Jun
49
Excellent
Mon
16 Jun
58
Good
Tue
17 Jun
56
Good
Wed
18 Jun
55
Good
Thu
19 Jun
40
Excellent
Fri
20 Jun
24
Excellent
Air quality in the last 12 months (Helong)
|
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
|
|
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
|
|
|
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