Air Quality
Excellent
No health implications.
7
PM2.5
12
PM10
124
O3
0.7
CO
7
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
3 Jul
124
Light
Fri
4 Jul
135
Light
Sat
5 Jul
143
Light
Sun
6 Jul
120
Light
Mon
7 Jul
114
Light
Tue
8 Jul
110
Light
Wed
9 Jul
48
Excellent
Hekou Air quality rank
Air quality in the last 12 months (Hekou)
|
2025/05
|
46
|
49
|
30
|
47
|
46
|
29
|
49
|
55
|
31
|
26
|
50
|
57
|
60
|
57
|
30
|
58
|
48
|
54
|
74
|
75
|
55
|
60
|
40
|
42
|
44
|
49
|
57
|
60
|
54
|
55
|
59
|
|
2025/04
|
73
|
31
|
46
|
73
|
34
|
65
|
98
|
69
|
42
|
61
|
73
|
174
|
59
|
50
|
44
|
76
|
83
|
44
|
22
|
35
|
54
|
47
|
61
|
60
|
60
|
72
|
43
|
42
|
61
|
68
|
|
|
2025/03
|
80
|
53
|
35
|
47
|
31
|
50
|
48
|
113
|
121
|
86
|
105
|
104
|
62
|
55
|
46
|
29
|
40
|
28
|
54
|
60
|
55
|
67
|
106
|
113
|
84
|
120
|
85
|
42
|
32
|
53
|
76
|
|
2025/02
|
42
|
76
|
25
|
26
|
33
|
69
|
36
|
19
|
49
|
63
|
86
|
73
|
75
|
88
|
104
|
61
|
41
|
32
|
32
|
47
|
39
|
37
|
39
|
57
|
60
|
86
|
121
|
152
|
|||
|
2025/01
|
87
|
34
|
56
|
125
|
184
|
42
|
41
|
26
|
18
|
39
|
57
|
55
|
86
|
64
|
30
|
64
|
54
|
105
|
106
|
83
|
73
|
31
|
40
|
57
|
48
|
62
|
38
|
58
|
92
|
47
|
44
|
|
2024/12
|
97
|
50
|
34
|
51
|
97
|
39
|
27
|
48
|
85
|
95
|
29
|
50
|
55
|
43
|
54
|
60
|
39
|
32
|
57
|
82
|
37
|
49
|
73
|
115
|
145
|
31
|
50
|
61
|
83
|
97
|
56
|
|
2024/11
|
70
|
56
|
87
|
34
|
40
|
55
|
69
|
69
|
56
|
80
|
65
|
92
|
120
|
66
|
70
|
66
|
31
|
28
|
46
|
74
|
73
|
30
|
24
|
58
|
46
|
30
|
32
|
37
|
55
|
67
|
|
|
2024/10
|
18
|
16
|
37
|
60
|
78
|
61
|
21
|
49
|
70
|
64
|
54
|
82
|
69
|
55
|
72
|
41
|
64
|
17
|
30
|
20
|
38
|
46
|
51
|
80
|
107
|
61
|
55
|
49
|
94
|
94
|
71
|
|
2024/09
|
43
|
19
|
23
|
39
|
30
|
14
|
18
|
35
|
44
|
33
|
17
|
30
|
26
|
24
|
18
|
24
|
40
|
37
|
30
|
23
|
19
|
21
|
32
|
48
|
60
|
23
|
25
|
43
|
41
|
20
|
|
|
2024/08
|
36
|
43
|
35
|
19
|
23
|
27
|
27
|
38
|
28
|
51
|
49
|
32
|
38
|
30
|
26
|
25
|
35
|
28
|
11
|
18
|
31
|
38
|
50
|
15
|
26
|
21
|
20
|
26
|
22
|
48
|
48
|
|
2024/07
|
49
|
44
|
41
|
44
|
39
|
16
|
35
|
27
|
55
|
50
|
67
|
72
|
83
|
44
|
31
|
24
|
34
|
47
|
40
|
22
|
37
|
24
|
40
|
40
|
18
|
10
|
11
|
13
|
16
|
29
|
27
|
|
2024/06
|
29
|
67
|
49
|
43
|
46
|
56
|
52
|
56
|
69
|
73
|
84
|
68
|
59
|
28
|
25
|
35
|
55
|
56
|
43
|
21
|
26
|
42
|
70
|
58
|
43
|
71
|
42
|
44
|
36
|
46
|
|
|
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