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
18 Jul
Sun
19 Jul
Mon
20 Jul
Tue
21 Jul
Wed
22 Jul
Thu
23 Jul
Fri
24 Jul
Real-time AQI (Monitoring Station in Langfang)
药材公司
4314
PM2.5
17
PM10
135
O3
0.2
CO
2
SO2
2
NO2
开发区
4515
PM2.5
23
PM10
144
O3
0.3
CO
3
SO2
2
NO2
北华航天学院
4611
PM2.5
18
PM10
146
O3
0.3
CO
3
SO2
2
NO2
河北工业大学
4616
PM2.5
19
PM10
146
O3
0.3
CO
1
SO2
2
NO2
Air quality in the last 12 months (Langfang)
|
2026/06
|
75
|
92
|
50
|
31
|
31
|
31
|
21
|
36
|
26
|
38
|
32
|
68
|
52
|
46
|
69
|
43
|
42
|
87
|
81
|
34
|
34
|
69
|
65
|
66
|
37
|
45
|
63
|
87
|
63
|
45
|
|
|
2026/05
|
71
|
52
|
28
|
48
|
66
|
56
|
47
|
55
|
64
|
66
|
81
|
79
|
86
|
84
|
71
|
53
|
39
|
28
|
38
|
31
|
39
|
43
|
41
|
75
|
40
|
32
|
43
|
32
|
39
|
61
|
73
|
|
2026/04
|
70
|
81
|
118
|
70
|
51
|
27
|
35
|
69
|
71
|
61
|
69
|
82
|
101
|
80
|
108
|
109
|
80
|
120
|
91
|
93
|
69
|
44
|
61
|
60
|
63
|
60
|
52
|
39
|
34
|
53
|
|
|
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
|
|
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