Air Quality
Excellent
No health implications.
18
PM2.5
35
PM10
84
O3
0.7
CO
5
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Aug
61
Good
Fri
22 Aug
63
Good
Sat
23 Aug
57
Good
Sun
24 Aug
64
Good
Mon
25 Aug
57
Good
Tue
26 Aug
56
Good
Wed
27 Aug
38
Excellent
Air quality in the last 12 months (Longcheng)
|
2025/06
|
33
|
56
|
40
|
24
|
42
|
39
|
27
|
44
|
37
|
28
|
40
|
49
|
33
|
47
|
26
|
16
|
32
|
42
|
42
|
25
|
37
|
37
|
44
|
55
|
51
|
49
|
44
|
21
|
37
|
33
|
|
|
2025/05
|
61
|
38
|
38
|
31
|
37
|
35
|
55
|
64
|
31
|
45
|
53
|
79
|
70
|
47
|
49
|
55
|
34
|
36
|
50
|
65
|
58
|
85
|
44
|
55
|
47
|
54
|
68
|
93
|
46
|
80
|
55
|
|
2025/04
|
53
|
26
|
48
|
58
|
45
|
44
|
67
|
31
|
33
|
53
|
63
|
77
|
26
|
21
|
51
|
64
|
72
|
30
|
25
|
39
|
49
|
28
|
62
|
51
|
40
|
60
|
36
|
35
|
67
|
48
|
|
|
2025/03
|
158
|
46
|
43
|
55
|
69
|
34
|
65
|
69
|
128
|
120
|
111
|
73
|
47
|
47
|
44
|
42
|
52
|
26
|
48
|
59
|
49
|
60
|
73
|
58
|
78
|
124
|
61
|
47
|
31
|
35
|
48
|
|
2025/02
|
89
|
85
|
40
|
25
|
30
|
66
|
53
|
30
|
52
|
67
|
90
|
57
|
79
|
69
|
73
|
37
|
27
|
26
|
41
|
41
|
31
|
40
|
36
|
53
|
58
|
61
|
87
|
127
|
|||
|
2025/01
|
53
|
40
|
49
|
76
|
85
|
57
|
39
|
37
|
27
|
69
|
77
|
80
|
68
|
39
|
35
|
50
|
61
|
64
|
56
|
76
|
70
|
69
|
107
|
139
|
134
|
118
|
31
|
89
|
285
|
80
|
67
|
|
2024/12
|
72
|
29
|
40
|
34
|
37
|
30
|
32
|
44
|
65
|
60
|
44
|
76
|
64
|
38
|
39
|
53
|
30
|
44
|
60
|
47
|
37
|
38
|
57
|
81
|
74
|
31
|
35
|
54
|
75
|
66
|
42
|
|
2024/11
|
63
|
52
|
57
|
29
|
39
|
43
|
89
|
147
|
85
|
73
|
42
|
48
|
57
|
64
|
55
|
33
|
32
|
33
|
53
|
68
|
53
|
46
|
56
|
111
|
71
|
18
|
27
|
41
|
42
|
54
|
|
|
2024/10
|
24
|
31
|
33
|
43
|
63
|
32
|
34
|
37
|
59
|
38
|
49
|
43
|
54
|
62
|
28
|
41
|
72
|
61
|
28
|
40
|
36
|
29
|
44
|
50
|
83
|
64
|
35
|
48
|
59
|
33
|
57
|
|
2024/09
|
29
|
28
|
29
|
34
|
23
|
35
|
24
|
27
|
42
|
25
|
45
|
40
|
44
|
16
|
34
|
35
|
31
|
39
|
48
|
14
|
22
|
34
|
31
|
42
|
35
|
37
|
45
|
55
|
39
|
20
|
|
|
2024/08
|
29
|
24
|
34
|
21
|
27
|
31
|
36
|
46
|
49
|
27
|
47
|
27
|
16
|
26
|
30
|
39
|
44
|
38
|
29
|
12
|
21
|
27
|
26
|
26
|
32
|
33
|
32
|
32
|
34
|
41
|
31
|
|
2024/07
|
46
|
55
|
35
|
36
|
48
|
64
|
32
|
56
|
58
|
66
|
69
|
76
|
53
|
43
|
35
|
29
|
40
|
38
|
45
|
41
|
53
|
37
|
33
|
30
|
20
|
19
|
24
|
29
|
36
|
43
|
27
|
|
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