Air Quality
Excellent
No health implications.
27
PM2.5
43
PM10
34
O3
0.8
CO
9
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Mar
52
Good
Thu
13 Mar
45
Excellent
Fri
14 Mar
38
Excellent
Sat
15 Mar
32
Excellent
Sun
16 Mar
31
Excellent
Mon
17 Mar
39
Excellent
Tue
18 Mar
36
Excellent
Air quality in the last 12 months (Long'an)
|
2025/01
|
110
|
107
|
95
|
101
|
80
|
94
|
110
|
99
|
63
|
28
|
46
|
59
|
77
|
84
|
82
|
72
|
82
|
96
|
92
|
100
|
95
|
78
|
90
|
64
|
49
|
12
|
38
|
51
|
119
|
77
|
63
|
|
2024/12
|
74
|
80
|
74
|
71
|
73
|
63
|
27
|
27
|
55
|
83
|
39
|
29
|
40
|
47
|
45
|
59
|
77
|
74
|
65
|
83
|
93
|
89
|
97
|
98
|
101
|
88
|
77
|
55
|
86
|
114
|
103
|
|
2024/11
|
46
|
48
|
59
|
62
|
56
|
61
|
62
|
60
|
59
|
59
|
61
|
63
|
69
|
72
|
69
|
65
|
62
|
48
|
36
|
31
|
36
|
36
|
45
|
55
|
68
|
19
|
35
|
33
|
43
|
59
|
|
|
2024/10
|
19
|
20
|
40
|
53
|
58
|
58
|
55
|
54
|
45
|
47
|
54
|
60
|
59
|
46
|
19
|
36
|
32
|
33
|
34
|
33
|
47
|
48
|
25
|
38
|
38
|
41
|
33
|
28
|
37
|
49
|
48
|
|
2024/09
|
32
|
40
|
32
|
36
|
43
|
39
|
16
|
17
|
22
|
20
|
24
|
33
|
42
|
44
|
48
|
35
|
28
|
35
|
37
|
41
|
35
|
24
|
29
|
41
|
52
|
56
|
57
|
52
|
34
|
35
|
|
|
2024/08
|
19
|
22
|
22
|
25
|
31
|
34
|
39
|
33
|
32
|
38
|
22
|
26
|
25
|
30
|
29
|
32
|
30
|
29
|
34
|
30
|
32
|
28
|
27
|
30
|
28
|
34
|
37
|
41
|
40
|
42
|
40
|
|
2024/07
|
35
|
19
|
21
|
28
|
22
|
22
|
24
|
24
|
28
|
27
|
27
|
27
|
27
|
23
|
30
|
31
|
25
|
18
|
19
|
25
|
32
|
33
|
24
|
18
|
26
|
37
|
45
|
30
|
23
|
17
|
15
|
|
2024/06
|
34
|
45
|
31
|
22
|
17
|
34
|
29
|
25
|
18
|
19
|
31
|
32
|
36
|
34
|
30
|
33
|
33
|
19
|
32
|
29
|
33
|
29
|
27
|
19
|
15
|
15
|
22
|
21
|
25
|
28
|
|
|
2024/05
|
23
|
27
|
27
|
33
|
31
|
35
|
43
|
41
|
24
|
28
|
38
|
29
|
44
|
55
|
45
|
50
|
51
|
50
|
18
|
25
|
34
|
35
|
45
|
53
|
45
|
24
|
34
|
21
|
37
|
23
|
21
|
|
2024/04
|
65
|
69
|
77
|
67
|
32
|
36
|
25
|
22
|
43
|
47
|
50
|
53
|
51
|
57
|
55
|
47
|
50
|
37
|
53
|
49
|
27
|
35
|
34
|
47
|
60
|
55
|
66
|
53
|
69
|
68
|
|
|
2024/03
|
32
|
56
|
81
|
64
|
65
|
46
|
63
|
72
|
55
|
25
|
25
|
46
|
34
|
20
|
22
|
48
|
57
|
56
|
24
|
69
|
75
|
55
|
47
|
49
|
54
|
51
|
61
|
50
|
52
|
58
|
61
|
|
2024/02
|
51
|
46
|
47
|
45
|
27
|
19
|
16
|
21
|
31
|
102
|
58
|
61
|
62
|
61
|
53
|
29
|
60
|
46
|
50
|
51
|
56
|
50
|
21
|
15
|
20
|
21
|
24
|
17
|
15
|
||
|
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