Air Quality
Excellent
No health implications.
30
PM2.5
34
PM10
30
O3
0.5
CO
2
SO2
19
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Apr
92
Good
Sat
18 Apr
89
Good
Sun
19 Apr
74
Good
Mon
20 Apr
52
Good
Tue
21 Apr
50
Excellent
Wed
22 Apr
57
Good
Thu
23 Apr
30
Excellent
Air quality in the last 12 months (Changping)
|
2026/03
|
99
|
111
|
84
|
51
|
72
|
24
|
72
|
75
|
23
|
92
|
39
|
110
|
94
|
40
|
73
|
63
|
142
|
26
|
45
|
47
|
65
|
61
|
115
|
125
|
163
|
131
|
36
|
75
|
66
|
27
|
48
|
|
2026/02
|
28
|
23
|
45
|
65
|
37
|
15
|
13
|
27
|
61
|
68
|
33
|
59
|
66
|
58
|
24
|
19
|
47
|
24
|
46
|
63
|
160
|
35
|
29
|
58
|
109
|
77
|
36
|
74
|
|||
|
2026/01
|
24
|
30
|
51
|
50
|
23
|
40
|
28
|
48
|
68
|
29
|
27
|
37
|
29
|
56
|
88
|
45
|
29
|
35
|
21
|
20
|
17
|
37
|
39
|
33
|
43
|
48
|
35
|
61
|
74
|
109
|
56
|
|
2025/12
|
20
|
19
|
26
|
23
|
37
|
72
|
39
|
27
|
50
|
73
|
28
|
42
|
25
|
49
|
61
|
50
|
63
|
170
|
122
|
17
|
29
|
60
|
44
|
20
|
18
|
35
|
56
|
72
|
20
|
21
|
21
|
|
2025/11
|
13
|
13
|
48
|
66
|
151
|
170
|
69
|
50
|
24
|
29
|
56
|
98
|
17
|
47
|
60
|
25
|
19
|
23
|
36
|
27
|
41
|
55
|
83
|
47
|
27
|
59
|
25
|
52
|
78
|
78
|
|
|
2025/10
|
33
|
40
|
30
|
26
|
40
|
18
|
29
|
15
|
10
|
12
|
17
|
28
|
41
|
50
|
54
|
70
|
21
|
9
|
13
|
11
|
19
|
41
|
56
|
86
|
105
|
12
|
25
|
83
|
181
|
125
|
45
|
|
2025/09
|
16
|
39
|
45
|
48
|
46
|
19
|
20
|
23
|
45
|
33
|
58
|
58
|
55
|
16
|
15
|
16
|
10
|
13
|
25
|
28
|
34
|
38
|
32
|
33
|
31
|
42
|
48
|
30
|
25
|
24
|
|
|
2025/08
|
42
|
55
|
23
|
38
|
18
|
29
|
20
|
28
|
11
|
19
|
36
|
35
|
18
|
23
|
46
|
17
|
32
|
36
|
17
|
15
|
30
|
20
|
21
|
16
|
17
|
20
|
16
|
14
|
32
|
30
|
24
|
|
2025/07
|
33
|
31
|
19
|
31
|
16
|
9
|
31
|
32
|
40
|
21
|
49
|
44
|
15
|
31
|
40
|
35
|
8
|
26
|
56
|
14
|
21
|
40
|
38
|
28
|
26
|
42
|
40
|
19
|
9
|
10
|
26
|
|
2025/06
|
65
|
14
|
11
|
15
|
39
|
23
|
20
|
49
|
40
|
25
|
44
|
68
|
60
|
48
|
11
|
12
|
29
|
58
|
30
|
20
|
14
|
21
|
43
|
49
|
63
|
54
|
69
|
49
|
46
|
45
|
|
|
2025/05
|
27
|
28
|
16
|
32
|
48
|
25
|
68
|
107
|
23
|
37
|
49
|
64
|
72
|
22
|
47
|
65
|
38
|
28
|
42
|
83
|
79
|
66
|
42
|
33
|
43
|
50
|
31
|
50
|
70
|
68
|
74
|
|
2025/04
|
22
|
19
|
55
|
53
|
20
|
57
|
50
|
34
|
36
|
64
|
103
|
64
|
62
|
45
|
48
|
84
|
57
|
17
|
33
|
69
|
74
|
20
|
42
|
24
|
41
|
79
|
14
|
47
|
58
|
28
|
|
|
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