Air Quality
Excellent
No health implications.
23
PM2.5
47
PM10
97
O3
0.5
CO
5
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 May
50
Excellent
Mon
5 May
57
Good
Tue
6 May
55
Good
Wed
7 May
47
Excellent
Thu
8 May
51
Good
Fri
9 May
38
Excellent
Sat
10 May
50
Excellent
Air quality in the last 12 months (Long'an)
|
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
|
|
|
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
|
|
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