Air Quality
Excellent
No health implications.
4
PM2.5
7
PM10
78
O3
0.4
CO
7
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Mar
86
Good
Mon
30 Mar
64
Good
Tue
31 Mar
86
Good
Wed
1 Apr
75
Good
Thu
2 Apr
62
Good
Fri
3 Apr
71
Good
Sat
4 Apr
42
Excellent
Air quality in the last 12 months (Longcheng)
|
2026/02
|
72
|
42
|
52
|
61
|
70
|
30
|
52
|
38
|
63
|
82
|
60
|
98
|
120
|
101
|
55
|
119
|
141
|
26
|
60
|
81
|
185
|
65
|
31
|
61
|
84
|
52
|
42
|
35
|
|||
|
2026/01
|
68
|
69
|
101
|
92
|
59
|
51
|
45
|
55
|
78
|
35
|
26
|
51
|
29
|
96
|
62
|
36
|
35
|
34
|
39
|
49
|
58
|
61
|
65
|
61
|
42
|
69
|
35
|
53
|
64
|
60
|
88
|
|
2025/12
|
35
|
26
|
36
|
58
|
46
|
85
|
71
|
46
|
52
|
75
|
33
|
69
|
95
|
71
|
81
|
67
|
72
|
114
|
102
|
30
|
34
|
57
|
58
|
43
|
38
|
53
|
78
|
78
|
41
|
43
|
39
|
|
2025/11
|
58
|
24
|
52
|
58
|
105
|
54
|
50
|
45
|
44
|
41
|
44
|
76
|
42
|
69
|
89
|
56
|
35
|
48
|
49
|
35
|
53
|
53
|
83
|
110
|
30
|
49
|
33
|
73
|
72
|
49
|
|
|
2025/10
|
51
|
58
|
53
|
40
|
30
|
19
|
35
|
20
|
23
|
34
|
52
|
35
|
44
|
62
|
51
|
29
|
34
|
21
|
32
|
28
|
42
|
52
|
46
|
58
|
74
|
51
|
42
|
45
|
101
|
59
|
59
|
|
2025/09
|
41
|
39
|
49
|
59
|
59
|
44
|
33
|
29
|
39
|
33
|
49
|
43
|
44
|
38
|
30
|
33
|
28
|
36
|
40
|
41
|
37
|
34
|
33
|
36
|
37
|
46
|
77
|
57
|
44
|
51
|
|
|
2025/08
|
40
|
48
|
32
|
23
|
22
|
24
|
27
|
31
|
27
|
33
|
40
|
40
|
25
|
30
|
41
|
31
|
23
|
38
|
39
|
26
|
33
|
25
|
40
|
21
|
27
|
34
|
32
|
15
|
34
|
41
|
41
|
|
2025/07
|
37
|
31
|
26
|
35
|
41
|
28
|
34
|
40
|
38
|
35
|
37
|
41
|
25
|
35
|
33
|
29
|
21
|
27
|
36
|
23
|
27
|
32
|
33
|
26
|
35
|
40
|
37
|
25
|
22
|
19
|
32
|
|
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
|
|
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