Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
13
PM2.5
54
*
PM10
73
O3
0.3
CO
7
SO2
13
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
26 Apr
172
Moderately
Sat
27 Apr
173
Moderately
Sun
28 Apr
146
Lightly
Mon
29 Apr
142
Lightly
Tue
30 Apr
116
Lightly
Wed
1 May
150
Lightly
Air quality in the last 12 months (Tiemenguan)
|
2024/02
|
97
|
78
|
68
|
75
|
66
|
72
|
79
|
93
|
98
|
89
|
88
|
73
|
67
|
121
|
145
|
205
|
395
|
494
|
485
|
418
|
233
|
229
|
245
|
245
|
259
|
217
|
183
|
123
|
207
|
||
|
2024/01
|
120
|
110
|
116
|
85
|
86
|
104
|
109
|
127
|
120
|
114
|
101
|
97
|
88
|
76
|
80
|
80
|
87
|
87
|
91
|
76
|
55
|
48
|
51
|
61
|
77
|
77
|
92
|
101
|
110
|
107
|
104
|
|
2023/12
|
87
|
75
|
83
|
80
|
95
|
104
|
85
|
69
|
48
|
54
|
56
|
66
|
111
|
119
|
159
|
119
|
131
|
146
|
150
|
125
|
111
|
128
|
127
|
236
|
318
|
263
|
222
|
204
|
174
|
147
|
116
|
|
2023/11
|
73
|
99
|
59
|
81
|
295
|
139
|
196
|
248
|
202
|
99
|
45
|
99
|
98
|
80
|
103
|
127
|
104
|
104
|
93
|
102
|
94
|
94
|
65
|
73
|
74
|
94
|
94
|
98
|
74
|
70
|
|
|
2023/10
|
66
|
65
|
65
|
68
|
72
|
58
|
59
|
64
|
61
|
49
|
68
|
85
|
80
|
76
|
63
|
43
|
60
|
102
|
130
|
119
|
108
|
122
|
112
|
89
|
78
|
90
|
91
|
80
|
75
|
78
|
83
|
|
2023/09
|
74
|
70
|
62
|
68
|
66
|
50
|
67
|
87
|
61
|
54
|
79
|
59
|
54
|
41
|
43
|
40
|
50
|
50
|
56
|
81
|
47
|
37
|
26
|
30
|
38
|
166
|
104
|
74
|
56
|
52
|
|
|
2023/08
|
75
|
44
|
73
|
48
|
56
|
75
|
56
|
70
|
54
|
48
|
61
|
67
|
54
|
42
|
41
|
48
|
55
|
60
|
62
|
64
|
70
|
63
|
51
|
47
|
51
|
55
|
50
|
50
|
82
|
81
|
79
|
|
2023/07
|
37
|
70
|
115
|
74
|
47
|
54
|
66
|
56
|
66
|
54
|
39
|
58
|
80
|
83
|
58
|
54
|
60
|
56
|
64
|
65
|
53
|
56
|
52
|
55
|
48
|
72
|
71
|
71
|
43
|
69
|
85
|
|
2023/06
|
46
|
62
|
45
|
54
|
82
|
71
|
61
|
60
|
58
|
64
|
74
|
76
|
56
|
60
|
56
|
47
|
79
|
60
|
65
|
71
|
56
|
47
|
47
|
59
|
58
|
53
|
46
|
74
|
67
|
53
|
|
|
2023/05
|
62
|
61
|
52
|
75
|
54
|
32
|
76
|
63
|
62
|
62
|
108
|
153
|
81
|
72
|
64
|
72
|
68
|
73
|
75
|
46
|
73
|
79
|
41
|
49
|
58
|
42
|
51
|
64
|
37
|
44
|
61
|
|
2023/04
|
149
|
456
|
280
|
216
|
263
|
500
|
500
|
482
|
440
|
163
|
272
|
84
|
113
|
187
|
178
|
133
|
73
|
86
|
60
|
175
|
155
|
219
|
71
|
108
|
112
|
47
|
90
|
80
|
102
|
134
|
|
|
2023/03
|
140
|
134
|
134
|
127
|
124
|
131
|
136
|
131
|
88
|
170
|
230
|
227
|
294
|
143
|
87
|
77
|
102
|
80
|
112
|
249
|
135
|
200
|
205
|
133
|
131
|
154
|
167
|
172
|
135
|
113
|
73
|
|
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