Air Quality
Excellent
No health implications.
6
PM2.5
8
PM10
41
O3
0.5
CO
6
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Oct
37
Excellent
Wed
22 Oct
43
Excellent
Thu
23 Oct
40
Excellent
Fri
24 Oct
41
Excellent
Sat
25 Oct
47
Excellent
Sun
26 Oct
48
Excellent
Mon
27 Oct
49
Excellent
Air quality in the last 12 months (Long'an)
|
2025/08
|
24
|
27
|
37
|
34
|
33
|
23
|
21
|
31
|
28
|
26
|
28
|
33
|
34
|
34
|
17
|
17
|
25
|
18
|
11
|
20
|
25
|
27
|
30
|
31
|
24
|
23
|
27
|
29
|
33
|
29
|
27
|
|
2025/07
|
20
|
17
|
23
|
28
|
36
|
41
|
34
|
29
|
36
|
22
|
21
|
24
|
28
|
22
|
30
|
31
|
29
|
46
|
43
|
30
|
21
|
13
|
14
|
16
|
26
|
30
|
32
|
38
|
40
|
44
|
29
|
|
2025/06
|
36
|
34
|
25
|
37
|
48
|
36
|
32
|
30
|
23
|
23
|
34
|
30
|
21
|
26
|
32
|
25
|
25
|
28
|
28
|
23
|
24
|
24
|
26
|
26
|
25
|
27
|
24
|
23
|
24
|
19
|
|
|
2025/05
|
33
|
48
|
48
|
42
|
41
|
29
|
39
|
50
|
29
|
30
|
26
|
42
|
48
|
37
|
27
|
25
|
30
|
24
|
22
|
30
|
32
|
30
|
21
|
26
|
36
|
32
|
49
|
45
|
18
|
31
|
37
|
|
2025/04
|
41
|
59
|
64
|
48
|
65
|
99
|
85
|
72
|
55
|
53
|
52
|
46
|
149
|
145
|
105
|
92
|
80
|
67
|
55
|
46
|
43
|
49
|
36
|
38
|
33
|
39
|
44
|
29
|
47
|
44
|
|
|
2025/03
|
46
|
45
|
58
|
59
|
39
|
24
|
35
|
47
|
52
|
58
|
60
|
36
|
37
|
39
|
22
|
20
|
51
|
33
|
39
|
54
|
67
|
74
|
70
|
80
|
88
|
66
|
65
|
79
|
37
|
17
|
27
|
|
2025/02
|
48
|
28
|
18
|
39
|
76
|
34
|
13
|
35
|
59
|
74
|
108
|
75
|
31
|
83
|
52
|
32
|
48
|
26
|
41
|
40
|
17
|
28
|
14
|
28
|
47
|
22
|
40
|
53
|
|||
|
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
|
|
|
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