Air Quality
Excellent
No health implications.
25
PM2.5
36
PM10
72
O3
0.5
CO
3
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Jul
62
Good
Sun
27 Jul
56
Good
Mon
28 Jul
63
Good
Tue
29 Jul
67
Good
Wed
30 Jul
59
Good
Thu
31 Jul
29
Excellent
Fri
1 Aug
25
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