Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
13
PM2.5
75
*
PM10
85
O3
0.2
CO
5
SO2
4
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
20 Apr
275
Heavy
Mon
21 Apr
288
Heavy
Tue
22 Apr
271
Heavy
Wed
23 Apr
152
Moderate
Thu
24 Apr
91
Good
Fri
25 Apr
87
Good
Sat
26 Apr
44
Excellent
Air quality in the last 12 months (Hejing)
|
2025/02
|
66
|
78
|
71
|
60
|
57
|
180
|
139
|
186
|
148
|
110
|
211
|
275
|
155
|
155
|
149
|
137
|
117
|
102
|
118
|
108
|
84
|
68
|
75
|
221
|
223
|
173
|
154
|
113
|
|||
|
2025/01
|
101
|
85
|
72
|
77
|
72
|
68
|
62
|
63
|
55
|
44
|
36
|
34
|
69
|
59
|
45
|
61
|
75
|
69
|
67
|
80
|
91
|
82
|
62
|
51
|
141
|
418
|
240
|
246
|
163
|
153
|
114
|
|
2024/12
|
76
|
76
|
61
|
60
|
51
|
51
|
58
|
56
|
50
|
23
|
29
|
38
|
32
|
42
|
49
|
44
|
42
|
51
|
49
|
54
|
55
|
61
|
68
|
78
|
74
|
64
|
62
|
87
|
95
|
82
|
75
|
|
2024/11
|
65
|
72
|
75
|
73
|
91
|
86
|
81
|
56
|
47
|
60
|
66
|
66
|
75
|
51
|
33
|
51
|
63
|
61
|
72
|
70
|
60
|
66
|
56
|
48
|
42
|
41
|
55
|
87
|
72
|
79
|
|
|
2024/10
|
75
|
69
|
72
|
42
|
39
|
58
|
69
|
71
|
67
|
75
|
88
|
88
|
68
|
62
|
73
|
75
|
58
|
40
|
34
|
41
|
39
|
66
|
92
|
84
|
63
|
73
|
72
|
79
|
46
|
35
|
45
|
|
2024/09
|
84
|
55
|
15
|
24
|
108
|
94
|
88
|
41
|
91
|
49
|
51
|
76
|
71
|
68
|
43
|
66
|
80
|
74
|
59
|
64
|
72
|
85
|
47
|
34
|
37
|
63
|
32
|
33
|
45
|
39
|
|
|
2024/08
|
40
|
56
|
52
|
39
|
39
|
55
|
20
|
19
|
46
|
56
|
31
|
26
|
33
|
30
|
56
|
46
|
58
|
64
|
49
|
51
|
73
|
52
|
47
|
57
|
75
|
50
|
58
|
46
|
51
|
38
|
31
|
|
2024/07
|
47
|
39
|
21
|
38
|
41
|
53
|
31
|
43
|
42
|
28
|
48
|
46
|
29
|
31
|
31
|
50
|
45
|
43
|
62
|
70
|
74
|
57
|
63
|
61
|
60
|
47
|
37
|
43
|
46
|
47
|
52
|
|
2024/06
|
28
|
57
|
68
|
30
|
32
|
59
|
63
|
53
|
37
|
57
|
53
|
39
|
31
|
32
|
42
|
30
|
36
|
79
|
129
|
52
|
57
|
47
|
44
|
48
|
44
|
49
|
53
|
50
|
46
|
52
|
|
|
2024/05
|
88
|
119
|
61
|
72
|
83
|
77
|
71
|
76
|
63
|
69
|
61
|
76
|
70
|
63
|
119
|
234
|
154
|
131
|
110
|
77
|
78
|
64
|
55
|
53
|
47
|
35
|
35
|
100
|
62
|
46
|
29
|
|
2024/04
|
41
|
27
|
52
|
53
|
38
|
50
|
81
|
60
|
99
|
68
|
37
|
80
|
409
|
374
|
215
|
125
|
92
|
49
|
32
|
63
|
77
|
53
|
64
|
57
|
58
|
48
|
78
|
90
|
56
|
54
|
|
|
2024/03
|
217
|
128
|
129
|
104
|
220
|
162
|
149
|
153
|
140
|
154
|
116
|
125
|
120
|
99
|
52
|
45
|
135
|
247
|
191
|
234
|
157
|
98
|
79
|
46
|
70
|
58
|
71
|
107
|
93
|
62
|
55
|
|
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