Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
22
PM2.5
138
*
PM10
108
O3
0.2
CO
6
SO2
3
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
12 May
84
Good
Wed
13 May
102
Light
Thu
14 May
97
Good
Fri
15 May
100
Good
Sat
16 May
88
Good
Sun
17 May
22
Excellent
Mon
18 May
42
Excellent
Air quality in the last 12 months (Hejing)
|
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
|
|
|
2025/08
|
32
|
31
|
30
|
36
|
42
|
23
|
37
|
44
|
24
|
45
|
33
|
34
|
32
|
36
|
33
|
24
|
41
|
37
|
30
|
43
|
42
|
23
|
26
|
43
|
53
|
27
|
35
|
96
|
61
|
46
|
61
|
|
2025/07
|
30
|
22
|
18
|
56
|
66
|
62
|
27
|
25
|
27
|
23
|
49
|
30
|
97
|
60
|
51
|
49
|
43
|
22
|
66
|
73
|
57
|
46
|
63
|
81
|
43
|
47
|
54
|
53
|
56
|
65
|
37
|
|
2025/06
|
28
|
26
|
27
|
39
|
54
|
55
|
48
|
49
|
41
|
51
|
52
|
35
|
15
|
31
|
28
|
46
|
43
|
20
|
31
|
33
|
30
|
25
|
37
|
45
|
29
|
46
|
39
|
16
|
52
|
35
|
|
|
2025/05
|
83
|
81
|
33
|
246
|
346
|
65
|
94
|
163
|
70
|
67
|
62
|
45
|
38
|
73
|
76
|
55
|
68
|
133
|
101
|
39
|
80
|
94
|
89
|
67
|
54
|
76
|
79
|
60
|
128
|
94
|
76
|
|
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