Air Quality
Light
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
9
PM2.5
54
PM10
213
O3
0.6
CO
18
SO2
12
NO2
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
Advise
Children, seniors and individuals with respiratory or heart diseases should reduce sustained and high-intensity outdoor exercises.
Air Quality
Today
31 May
117
Light
Mon
1 Jun
136
Light
Tue
2 Jun
132
Light
Wed
3 Jun
112
Light
Thu
4 Jun
88
Good
Fri
5 Jun
92
Good
Sat
6 Jun
50
Excellent
Air quality in the last 12 months (Hekou)
|
2026/04
|
79
|
79
|
84
|
39
|
56
|
42
|
30
|
54
|
36
|
51
|
65
|
73
|
52
|
66
|
82
|
60
|
70
|
96
|
77
|
93
|
67
|
45
|
51
|
59
|
63
|
57
|
54
|
33
|
42
|
55
|
|
|
2026/03
|
97
|
103
|
133
|
120
|
58
|
49
|
39
|
92
|
50
|
86
|
110
|
51
|
92
|
70
|
43
|
67
|
133
|
43
|
52
|
62
|
104
|
122
|
116
|
125
|
106
|
127
|
71
|
82
|
120
|
34
|
34
|
|
2026/02
|
211
|
84
|
99
|
164
|
149
|
34
|
39
|
50
|
82
|
88
|
104
|
106
|
141
|
146
|
73
|
62
|
245
|
92
|
69
|
101
|
143
|
67
|
59
|
71
|
74
|
66
|
57
|
65
|
|||
|
2026/01
|
30
|
37
|
107
|
188
|
50
|
154
|
39
|
56
|
90
|
52
|
26
|
68
|
56
|
103
|
143
|
64
|
23
|
26
|
34
|
20
|
35
|
61
|
100
|
107
|
50
|
43
|
65
|
84
|
42
|
39
|
103
|
|
2025/12
|
50
|
26
|
40
|
43
|
51
|
96
|
101
|
29
|
87
|
117
|
45
|
19
|
39
|
82
|
80
|
94
|
55
|
81
|
131
|
40
|
22
|
44
|
58
|
42
|
22
|
40
|
79
|
108
|
90
|
49
|
21
|
|
2025/11
|
83
|
18
|
32
|
72
|
92
|
70
|
68
|
86
|
45
|
65
|
87
|
105
|
41
|
84
|
164
|
98
|
28
|
41
|
57
|
45
|
60
|
97
|
125
|
109
|
32
|
84
|
51
|
93
|
134
|
134
|
|
|
2025/10
|
73
|
18
|
12
|
19
|
14
|
18
|
33
|
36
|
11
|
10
|
17
|
23
|
38
|
53
|
29
|
39
|
33
|
20
|
23
|
19
|
23
|
28
|
38
|
37
|
77
|
57
|
37
|
96
|
82
|
59
|
41
|
|
2025/09
|
20
|
37
|
38
|
28
|
27
|
26
|
51
|
63
|
41
|
44
|
43
|
34
|
36
|
54
|
49
|
43
|
17
|
18
|
11
|
27
|
30
|
21
|
26
|
36
|
51
|
55
|
43
|
40
|
53
|
60
|
|
|
2025/08
|
15
|
13
|
22
|
14
|
25
|
19
|
17
|
16
|
10
|
19
|
24
|
34
|
34
|
41
|
20
|
11
|
9
|
17
|
41
|
43
|
35
|
20
|
17
|
19
|
23
|
22
|
23
|
14
|
15
|
13
|
16
|
|
2025/07
|
20
|
20
|
25
|
34
|
34
|
11
|
22
|
22
|
23
|
30
|
32
|
36
|
23
|
14
|
19
|
12
|
24
|
26
|
15
|
31
|
11
|
10
|
10
|
21
|
25
|
24
|
12
|
18
|
15
|
13
|
15
|
|
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
|
|
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