Air Quality
Excellent
No health implications.
29
PM2.5
47
PM10
25
O3
0.2
CO
2
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 May
29
Excellent
Thu
15 May
87
Good
Fri
16 May
85
Good
Sat
17 May
31
Excellent
Sun
18 May
66
Good
Mon
19 May
46
Excellent
Tue
20 May
28
Excellent
Air quality in the last 12 months (Longhua)
|
2025/02
|
81
|
62
|
19
|
20
|
21
|
39
|
22
|
16
|
22
|
42
|
76
|
35
|
48
|
47
|
69
|
27
|
23
|
33
|
26
|
25
|
21
|
29
|
17
|
28
|
39
|
45
|
73
|
94
|
|||
|
2025/01
|
54
|
28
|
36
|
54
|
44
|
25
|
24
|
23
|
19
|
26
|
41
|
36
|
38
|
31
|
30
|
54
|
60
|
54
|
42
|
58
|
42
|
40
|
87
|
104
|
125
|
86
|
19
|
23
|
85
|
27
|
61
|
|
2024/12
|
46
|
26
|
36
|
34
|
26
|
32
|
21
|
34
|
40
|
50
|
46
|
67
|
23
|
32
|
37
|
34
|
24
|
26
|
51
|
49
|
25
|
30
|
47
|
68
|
64
|
25
|
25
|
41
|
63
|
55
|
41
|
|
2024/11
|
99
|
78
|
44
|
26
|
34
|
36
|
66
|
111
|
107
|
78
|
54
|
55
|
56
|
59
|
53
|
41
|
29
|
38
|
57
|
56
|
29
|
31
|
49
|
79
|
57
|
20
|
25
|
21
|
27
|
30
|
|
|
2024/10
|
19
|
17
|
20
|
37
|
65
|
46
|
20
|
30
|
44
|
23
|
38
|
56
|
87
|
73
|
28
|
44
|
58
|
37
|
20
|
30
|
44
|
21
|
31
|
42
|
65
|
107
|
28
|
32
|
43
|
29
|
77
|
|
2024/09
|
22
|
18
|
27
|
35
|
23
|
25
|
23
|
33
|
35
|
20
|
34
|
29
|
26
|
17
|
21
|
25
|
22
|
24
|
44
|
18
|
17
|
19
|
22
|
41
|
38
|
25
|
40
|
41
|
50
|
13
|
|
|
2024/08
|
21
|
28
|
27
|
19
|
27
|
29
|
40
|
43
|
41
|
43
|
33
|
17
|
20
|
25
|
24
|
31
|
42
|
24
|
20
|
11
|
18
|
26
|
24
|
31
|
27
|
21
|
33
|
42
|
35
|
35
|
33
|
|
2024/07
|
28
|
32
|
23
|
26
|
35
|
38
|
26
|
43
|
60
|
50
|
55
|
44
|
43
|
46
|
47
|
37
|
17
|
19
|
28
|
28
|
36
|
22
|
37
|
46
|
18
|
17
|
24
|
25
|
31
|
19
|
16
|
|
2024/06
|
25
|
23
|
32
|
42
|
47
|
49
|
38
|
30
|
28
|
41
|
32
|
34
|
41
|
21
|
19
|
34
|
42
|
50
|
63
|
46
|
66
|
136
|
113
|
16
|
29
|
37
|
56
|
48
|
56
|
29
|
|
|
2024/05
|
33
|
44
|
54
|
58
|
66
|
47
|
42
|
48
|
65
|
136
|
139
|
26
|
34
|
41
|
20
|
38
|
54
|
58
|
49
|
23
|
40
|
53
|
67
|
25
|
25
|
23
|
28
|
33
|
61
|
36
|
14
|
|
2024/04
|
49
|
61
|
27
|
49
|
58
|
50
|
44
|
41
|
53
|
48
|
52
|
93
|
69
|
70
|
126
|
36
|
55
|
57
|
39
|
26
|
51
|
57
|
18
|
37
|
80
|
73
|
48
|
18
|
13
|
20
|
|
|
2024/03
|
29
|
38
|
22
|
49
|
63
|
30
|
37
|
23
|
46
|
68
|
59
|
28
|
42
|
43
|
76
|
128
|
24
|
76
|
37
|
21
|
58
|
49
|
47
|
52
|
47
|
67
|
135
|
218
|
75
|
43
|
38
|
|
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