Air Quality
Excellent
No health implications.
13
PM2.5
23
PM10
92
O3
0.6
CO
4
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 May
83
Good
Sun
24 May
97
Good
Mon
25 May
67
Good
Tue
26 May
73
Good
Wed
27 May
85
Good
Thu
28 May
43
Excellent
Fri
29 May
39
Excellent
Air quality in the last 12 months (Changping)
|
2026/04
|
39
|
73
|
92
|
50
|
39
|
26
|
32
|
70
|
62
|
46
|
46
|
68
|
71
|
77
|
94
|
115
|
43
|
101
|
77
|
82
|
55
|
66
|
66
|
61
|
66
|
46
|
34
|
27
|
27
|
41
|
|
|
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
|
|
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