Air Quality
Severe
Healthy people will experience reduced endurance in activities and may also show noticeably strong symptoms. Other illnesses may be triggered in healthy people. Elders and the sick should remain indoors and avoid exercise. Healthy individuals should avoid outdoor activities.
PM2.5
PM10
O3
CO
SO2
NO2
Healthy people will experience reduced endurance in activities and may also show noticeably strong symptoms. Other illnesses may be triggered in healthy people. Elders and the sick should remain indoors and avoid exercise. Healthy individuals should avoid outdoor activities.
Advise
Children, seniors and the sick should stay indoors and avoid physical exertion. General population should avoid outdoor activities.
Air Quality
Today
28 Oct
Thu
29 Oct
Fri
30 Oct
Sat
31 Oct
Sun
1 Nov
Mon
2 Nov
Tue
3 Nov
Air quality in the last 12 months (Hejing)
|
2026/08
|
42
|
44
|
63
|
48
|
46
|
40
|
39
|
44
|
45
|
42
|
39
|
37
|
43
|
40
|
39
|
36
|
80
|
66
|
39
|
41
|
38
|
60
|
62
|
49
|
61
|
34
|
37
|
49
|
62
|
51
|
55
|
|
2026/07
|
37
|
37
|
37
|
56
|
53
|
53
|
46
|
45
|
42
|
38
|
59
|
59
|
43
|
44
|
59
|
37
|
46
|
75
|
68
|
48
|
51
|
44
|
55
|
49
|
63
|
50
|
43
|
42
|
38
|
35
|
34
|
|
2026/06
|
121
|
51
|
42
|
34
|
36
|
44
|
50
|
37
|
36
|
44
|
45
|
48
|
48
|
43
|
41
|
85
|
59
|
43
|
69
|
64
|
37
|
43
|
35
|
66
|
57
|
61
|
61
|
39
|
35
|
43
|
|
|
2026/05
|
109
|
60
|
55
|
51
|
64
|
36
|
78
|
117
|
66
|
103
|
92
|
60
|
31
|
40
|
40
|
120
|
84
|
68
|
62
|
150
|
183
|
144
|
108
|
48
|
74
|
91
|
131
|
93
|
98
|
56
|
110
|
|
2026/04
|
90
|
65
|
60
|
59
|
44
|
43
|
86
|
87
|
63
|
87
|
60
|
58
|
64
|
61
|
73
|
92
|
85
|
55
|
44
|
80
|
73
|
70
|
84
|
83
|
53
|
52
|
68
|
38
|
53
|
97
|
|
|
2026/03
|
64
|
60
|
57
|
73
|
79
|
61
|
65
|
80
|
90
|
100
|
182
|
141
|
78
|
168
|
134
|
110
|
107
|
112
|
116
|
89
|
73
|
90
|
94
|
82
|
71
|
43
|
94
|
120
|
88
|
100
|
107
|
|
2026/02
|
65
|
66
|
86
|
76
|
65
|
72
|
107
|
140
|
122
|
168
|
193
|
149
|
118
|
85
|
58
|
67
|
89
|
114
|
195
|
128
|
104
|
85
|
117
|
71
|
84
|
83
|
101
|
76
|
|||
|
2026/01
|
46
|
84
|
80
|
63
|
41
|
44
|
53
|
56
|
64
|
66
|
36
|
59
|
58
|
57
|
63
|
52
|
52
|
60
|
63
|
103
|
178
|
170
|
157
|
140
|
131
|
117
|
108
|
101
|
78
|
75
|
69
|
|
2025/12
|
60
|
58
|
63
|
59
|
66
|
76
|
70
|
65
|
64
|
66
|
102
|
91
|
123
|
89
|
79
|
100
|
108
|
88
|
69
|
60
|
46
|
57
|
62
|
64
|
50
|
45
|
39
|
58
|
69
|
54
|
53
|
|
2025/11
|
77
|
80
|
87
|
83
|
62
|
29
|
44
|
59
|
74
|
83
|
85
|
73
|
81
|
83
|
75
|
48
|
35
|
70
|
85
|
95
|
98
|
101
|
103
|
91
|
86
|
74
|
106
|
79
|
81
|
60
|
|
|
2025/10
|
76
|
55
|
22
|
34
|
64
|
37
|
42
|
64
|
66
|
61
|
67
|
72
|
66
|
27
|
30
|
80
|
54
|
78
|
62
|
65
|
74
|
86
|
94
|
89
|
93
|
81
|
79
|
74
|
75
|
67
|
70
|
|
2025/09
|
108
|
393
|
333
|
54
|
102
|
207
|
200
|
127
|
126
|
50
|
40
|
43
|
56
|
36
|
39
|
29
|
32
|
48
|
47
|
42
|
21
|
76
|
75
|
27
|
11
|
22
|
59
|
61
|
65
|
95
|
|
|
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
*: primary pollution