Air Quality
Light
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
99
*
PM2.5
140
PM10
108
O3
1.2
CO
6
SO2
29
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
1 Mar
127
Light
Sun
2 Mar
62
Good
Mon
3 Mar
55
Good
Tue
4 Mar
65
Good
Wed
5 Mar
85
Good
Thu
6 Mar
33
Excellent
Fri
7 Mar
18
Excellent
Air quality in the last 12 months (Hekou)
|
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
|
|
|
2024/05
|
48
|
56
|
64
|
47
|
34
|
63
|
76
|
68
|
73
|
69
|
228
|
53
|
64
|
97
|
41
|
54
|
68
|
77
|
54
|
18
|
37
|
51
|
57
|
36
|
35
|
36
|
29
|
30
|
53
|
58
|
42
|
|
2024/04
|
68
|
59
|
46
|
44
|
62
|
78
|
89
|
115
|
94
|
177
|
120
|
73
|
63
|
36
|
122
|
80
|
82
|
99
|
77
|
74
|
49
|
82
|
42
|
38
|
79
|
72
|
70
|
52
|
31
|
41
|
|
|
2024/03
|
40
|
82
|
100
|
85
|
62
|
41
|
80
|
33
|
59
|
110
|
146
|
114
|
110
|
121
|
103
|
82
|
92
|
92
|
114
|
45
|
86
|
81
|
75
|
58
|
31
|
67
|
79
|
229
|
181
|
99
|
77
|
|
2024/02
|
29
|
43
|
29
|
28
|
79
|
103
|
111
|
128
|
183
|
177
|
171
|
140
|
102
|
109
|
33
|
63
|
56
|
50
|
35
|
39
|
30
|
28
|
27
|
64
|
103
|
63
|
55
|
84
|
66
|
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1
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2
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4
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5
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6
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7
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8
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9
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10
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11
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12
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13
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14
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15
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16
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17
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18
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19
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20
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21
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22
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23
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24
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25
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26
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27
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28
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29
|
30
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31
|
- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
Air quality source: CNEMC
*: primary pollution