Air Quality
Excellent
No health implications.
3
PM2.5
7
PM10
47
O3
0.7
CO
6
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Jul
76
Good
Thu
24 Jul
87
Good
Fri
25 Jul
92
Good
Sat
26 Jul
101
Light
Sun
27 Jul
102
Light
Mon
28 Jul
91
Good
Tue
29 Jul
35
Excellent
Air quality in the last 12 months (Hekou)
|
2025/06
|
47
|
51
|
28
|
28
|
56
|
70
|
53
|
41
|
55
|
20
|
36
|
45
|
32
|
19
|
18
|
25
|
41
|
44
|
20
|
25
|
47
|
52
|
44
|
47
|
41
|
54
|
42
|
57
|
25
|
28
|
|
|
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
|
|
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