Air Quality
Excellent
No health implications.
8
PM2.5
14
PM10
41
O3
0.4
CO
8
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Aug
35
Excellent
Fri
28 Aug
38
Excellent
Sat
29 Aug
37
Excellent
Sun
30 Aug
37
Excellent
Mon
31 Aug
36
Excellent
Tue
1 Sep
35
Excellent
Wed
2 Sep
19
Excellent
Air quality in the last 12 months (Hekou)
|
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
|
|
|
2025/08
|
19
|
24
|
19
|
20
|
27
|
25
|
15
|
15
|
15
|
16
|
21
|
24
|
23
|
33
|
27
|
17
|
18
|
26
|
18
|
16
|
17
|
18
|
17
|
21
|
22
|
20
|
14
|
15
|
18
|
21
|
17
|
|
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