Air Quality
Excellent
No health implications.
4
PM2.5
11
PM10
59
O3
0.8
CO
5
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Jul
52
Good
Tue
15 Jul
50
Excellent
Wed
16 Jul
49
Excellent
Thu
17 Jul
48
Excellent
Fri
18 Jul
45
Excellent
Sat
19 Jul
48
Excellent
Sun
20 Jul
24
Excellent
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