Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Apr
Fri
17 Apr
Sat
18 Apr
Sun
19 Apr
Mon
20 Apr
Tue
21 Apr
Wed
22 Apr
Real-time AQI (Monitoring Station in Langfang)
药材公司
3927
PM2.5
39
PM10
89
O3
0.4
CO
3
SO2
12
NO2
开发区
3927
PM2.5
30
PM10
91
O3
0.2
CO
3
SO2
5
NO2
Air quality in the last 12 months (Langfang)
|
2026/03
|
90
|
115
|
141
|
123
|
72
|
60
|
86
|
89
|
34
|
107
|
90
|
96
|
96
|
65
|
63
|
79
|
153
|
50
|
55
|
62
|
111
|
103
|
106
|
167
|
158
|
215
|
62
|
88
|
122
|
35
|
51
|
|
2026/02
|
110
|
24
|
121
|
164
|
85
|
16
|
32
|
39
|
128
|
113
|
71
|
121
|
139
|
138
|
26
|
37
|
154
|
43
|
71
|
90
|
199
|
39
|
34
|
71
|
76
|
86
|
46
|
66
|
|||
|
2026/01
|
34
|
53
|
98
|
133
|
86
|
150
|
24
|
73
|
113
|
38
|
28
|
66
|
35
|
67
|
120
|
69
|
45
|
47
|
26
|
22
|
28
|
73
|
65
|
138
|
72
|
75
|
53
|
64
|
68
|
98
|
82
|
|
2025/12
|
39
|
22
|
44
|
44
|
60
|
136
|
98
|
29
|
88
|
116
|
73
|
42
|
43
|
76
|
157
|
103
|
144
|
215
|
188
|
25
|
35
|
72
|
66
|
30
|
22
|
70
|
79
|
201
|
38
|
34
|
20
|
|
2025/11
|
56
|
22
|
62
|
106
|
198
|
147
|
58
|
67
|
51
|
78
|
132
|
93
|
30
|
92
|
116
|
60
|
20
|
39
|
55
|
36
|
63
|
108
|
143
|
76
|
34
|
81
|
33
|
86
|
112
|
124
|
|
|
2025/10
|
59
|
56
|
56
|
63
|
87
|
24
|
41
|
33
|
11
|
15
|
20
|
42
|
49
|
47
|
80
|
65
|
37
|
17
|
22
|
21
|
33
|
59
|
77
|
104
|
155
|
52
|
42
|
176
|
179
|
168
|
80
|
|
2025/09
|
32
|
51
|
50
|
64
|
58
|
40
|
46
|
37
|
57
|
40
|
62
|
64
|
54
|
48
|
46
|
30
|
20
|
29
|
38
|
44
|
69
|
39
|
53
|
66
|
69
|
63
|
71
|
49
|
52
|
51
|
|
|
2025/08
|
59
|
55
|
36
|
39
|
36
|
56
|
42
|
40
|
30
|
38
|
48
|
54
|
35
|
43
|
45
|
30
|
47
|
45
|
34
|
34
|
39
|
39
|
36
|
21
|
33
|
43
|
32
|
21
|
38
|
33
|
31
|
|
2025/07
|
44
|
43
|
33
|
47
|
44
|
28
|
47
|
42
|
54
|
44
|
54
|
56
|
34
|
48
|
42
|
39
|
35
|
50
|
54
|
31
|
38
|
56
|
41
|
32
|
39
|
53
|
47
|
42
|
18
|
29
|
47
|
|
2025/06
|
75
|
58
|
30
|
29
|
59
|
54
|
55
|
54
|
57
|
43
|
63
|
78
|
69
|
51
|
30
|
24
|
62
|
80
|
44
|
39
|
40
|
47
|
98
|
85
|
75
|
64
|
55
|
49
|
62
|
44
|
|
|
2025/05
|
40
|
53
|
31
|
54
|
62
|
32
|
89
|
92
|
37
|
41
|
65
|
77
|
72
|
43
|
50
|
81
|
72
|
51
|
84
|
119
|
78
|
66
|
61
|
47
|
58
|
70
|
68
|
70
|
74
|
78
|
76
|
|
2025/04
|
61
|
29
|
66
|
99
|
30
|
73
|
67
|
49
|
51
|
92
|
117
|
149
|
65
|
48
|
57
|
94
|
75
|
61
|
53
|
74
|
95
|
47
|
69
|
40
|
55
|
87
|
62
|
67
|
61
|
65
|
|
|
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