Air Quality
Excellent
No health implications.
15
PM2.5
31
PM10
22
O3
0.5
CO
12
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Sep
38
Excellent
Thu
1 Oct
41
Excellent
Fri
2 Oct
38
Excellent
Sat
3 Oct
39
Excellent
Sun
4 Oct
39
Excellent
Mon
5 Oct
39
Excellent
Tue
6 Oct
43
Excellent
Air quality in the last 12 months (Hekou)
|
2026/08
|
16
|
15
|
17
|
20
|
24
|
24
|
18
|
28
|
24
|
29
|
36
|
28
|
34
|
33
|
30
|
25
|
25
|
23
|
21
|
23
|
24
|
25
|
25
|
28
|
29
|
26
|
18
|
23
|
17
|
29
|
27
|
|
2026/07
|
14
|
15
|
18
|
18
|
17
|
17
|
16
|
17
|
18
|
18
|
17
|
18
|
21
|
20
|
22
|
17
|
18
|
19
|
27
|
36
|
31
|
26
|
21
|
19
|
18
|
19
|
18
|
15
|
15
|
16
|
17
|
|
2026/06
|
26
|
32
|
27
|
27
|
28
|
20
|
18
|
19
|
23
|
27
|
28
|
20
|
15
|
18
|
19
|
16
|
18
|
18
|
17
|
16
|
17
|
15
|
19
|
19
|
21
|
17
|
14
|
15
|
16
|
18
|
|
|
2026/05
|
31
|
26
|
22
|
29
|
27
|
30
|
34
|
37
|
37
|
17
|
18
|
22
|
24
|
27
|
31
|
33
|
28
|
24
|
23
|
22
|
21
|
20
|
23
|
20
|
23
|
34
|
35
|
33
|
23
|
20
|
27
|
|
2026/04
|
55
|
60
|
60
|
63
|
70
|
70
|
63
|
55
|
46
|
51
|
53
|
55
|
66
|
79
|
104
|
93
|
79
|
70
|
55
|
55
|
64
|
66
|
53
|
45
|
33
|
37
|
41
|
40
|
27
|
24
|
|
|
2026/03
|
46
|
59
|
56
|
50
|
49
|
35
|
32
|
27
|
26
|
24
|
35
|
41
|
47
|
57
|
35
|
33
|
50
|
45
|
53
|
60
|
61
|
33
|
38
|
53
|
63
|
76
|
96
|
120
|
77
|
52
|
59
|
|
2026/02
|
28
|
25
|
34
|
42
|
40
|
42
|
48
|
29
|
19
|
28
|
25
|
30
|
32
|
33
|
33
|
50
|
65
|
40
|
26
|
24
|
35
|
39
|
33
|
44
|
35
|
26
|
33
|
41
|
|||
|
2026/01
|
45
|
25
|
19
|
23
|
19
|
19
|
28
|
41
|
34
|
41
|
56
|
58
|
78
|
64
|
70
|
43
|
47
|
43
|
47
|
47
|
43
|
23
|
22
|
25
|
35
|
36
|
33
|
36
|
45
|
42
|
43
|
|
2025/12
|
45
|
49
|
55
|
52
|
43
|
36
|
37
|
42
|
41
|
40
|
41
|
45
|
39
|
34
|
28
|
35
|
33
|
24
|
26
|
42
|
40
|
36
|
38
|
31
|
33
|
31
|
30
|
33
|
36
|
39
|
34
|
|
2025/11
|
21
|
16
|
18
|
23
|
14
|
20
|
21
|
18
|
13
|
11
|
16
|
21
|
26
|
25
|
28
|
32
|
33
|
15
|
17
|
30
|
42
|
41
|
30
|
34
|
44
|
49
|
45
|
47
|
45
|
45
|
|
|
2025/10
|
17
|
16
|
21
|
23
|
22
|
27
|
16
|
17
|
22
|
25
|
34
|
37
|
37
|
27
|
20
|
17
|
25
|
30
|
28
|
33
|
24
|
23
|
26
|
29
|
17
|
18
|
19
|
23
|
27
|
30
|
31
|
|
2025/09
|
16
|
16
|
20
|
23
|
23
|
26
|
29
|
28
|
23
|
16
|
17
|
14
|
15
|
20
|
24
|
23
|
24
|
20
|
20
|
19
|
29
|
29
|
21
|
23
|
24
|
20
|
21
|
26
|
22
|
18
|
|
|
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