Air Quality
Excellent
No health implications.
8
PM2.5
16
PM10
36
O3
0.5
CO
4
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Jul
31
Excellent
Thu
17 Jul
31
Excellent
Fri
18 Jul
36
Excellent
Sat
19 Jul
37
Excellent
Sun
20 Jul
36
Excellent
Mon
21 Jul
32
Excellent
Tue
22 Jul
41
Excellent
Hekou Air quality rank
Air quality in the last 12 months (Hekou)
|
2025/06
|
15
|
15
|
22
|
28
|
23
|
35
|
33
|
25
|
23
|
36
|
46
|
28
|
28
|
26
|
26
|
16
|
16
|
11
|
17
|
18
|
16
|
13
|
17
|
13
|
13
|
14
|
14
|
12
|
10
|
12
|
|
|
2025/05
|
38
|
33
|
25
|
22
|
25
|
31
|
41
|
43
|
45
|
31
|
18
|
20
|
32
|
40
|
21
|
17
|
19
|
20
|
21
|
17
|
25
|
28
|
34
|
44
|
28
|
22
|
15
|
19
|
18
|
18
|
13
|
|
2025/04
|
42
|
55
|
63
|
88
|
96
|
35
|
46
|
52
|
56
|
60
|
60
|
60
|
82
|
74
|
61
|
48
|
42
|
38
|
37
|
36
|
34
|
34
|
45
|
53
|
46
|
48
|
60
|
51
|
34
|
35
|
|
|
2025/03
|
39
|
44
|
64
|
72
|
88
|
63
|
46
|
45
|
44
|
45
|
53
|
47
|
48
|
56
|
68
|
43
|
46
|
29
|
33
|
47
|
55
|
74
|
78
|
65
|
67
|
67
|
72
|
94
|
84
|
39
|
38
|
|
2025/02
|
48
|
57
|
33
|
36
|
56
|
51
|
30
|
25
|
23
|
33
|
48
|
55
|
39
|
41
|
51
|
49
|
35
|
28
|
33
|
37
|
27
|
30
|
25
|
16
|
21
|
19
|
32
|
40
|
|||
|
2025/01
|
53
|
53
|
75
|
81
|
69
|
92
|
95
|
94
|
66
|
31
|
41
|
52
|
51
|
59
|
71
|
76
|
80
|
95
|
64
|
58
|
85
|
94
|
51
|
37
|
42
|
29
|
39
|
46
|
59
|
49
|
51
|
|
2024/12
|
43
|
50
|
41
|
40
|
41
|
27
|
20
|
17
|
22
|
30
|
39
|
26
|
28
|
35
|
68
|
52
|
43
|
49
|
63
|
68
|
74
|
69
|
71
|
67
|
72
|
86
|
74
|
47
|
43
|
58
|
45
|
|
2024/11
|
32
|
46
|
50
|
40
|
45
|
48
|
47
|
52
|
53
|
49
|
49
|
42
|
44
|
43
|
39
|
38
|
49
|
48
|
52
|
42
|
42
|
40
|
39
|
44
|
43
|
32
|
19
|
22
|
45
|
51
|
|
|
2024/10
|
16
|
17
|
25
|
25
|
33
|
34
|
39
|
50
|
39
|
35
|
38
|
44
|
52
|
35
|
28
|
13
|
15
|
27
|
30
|
24
|
31
|
31
|
26
|
42
|
45
|
35
|
42
|
45
|
40
|
30
|
30
|
|
2024/09
|
26
|
18
|
21
|
23
|
28
|
30
|
26
|
11
|
13
|
11
|
16
|
22
|
22
|
24
|
25
|
26
|
19
|
24
|
25
|
36
|
31
|
17
|
27
|
32
|
33
|
37
|
37
|
30
|
21
|
18
|
|
|
2024/08
|
10
|
14
|
13
|
13
|
12
|
14
|
14
|
15
|
13
|
18
|
23
|
32
|
21
|
33
|
39
|
31
|
34
|
32
|
30
|
25
|
17
|
9
|
12
|
17
|
15
|
11
|
13
|
26
|
26
|
26
|
20
|
|
2024/07
|
13
|
15
|
11
|
12
|
13
|
16
|
16
|
16
|
16
|
13
|
10
|
13
|
16
|
13
|
14
|
13
|
12
|
11
|
11
|
11
|
10
|
14
|
20
|
15
|
17
|
22
|
26
|
20
|
12
|
13
|
14
|
|
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