Air Quality
Excellent
No health implications.
10
PM2.5
14
PM10
81
O3
0.5
CO
6
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
1 Jun
53
Good
Mon
2 Jun
54
Good
Tue
3 Jun
49
Excellent
Wed
4 Jun
53
Good
Thu
5 Jun
59
Good
Fri
6 Jun
55
Good
Sat
7 Jun
49
Excellent
Air quality in the last 12 months (Longnan)
|
2025/04
|
26
|
44
|
53
|
63
|
52
|
56
|
61
|
68
|
89
|
63
|
51
|
65
|
151
|
103
|
91
|
79
|
67
|
61
|
42
|
39
|
44
|
37
|
30
|
34
|
25
|
23
|
37
|
43
|
50
|
61
|
|
|
2025/03
|
56
|
39
|
34
|
22
|
14
|
15
|
28
|
34
|
43
|
51
|
59
|
50
|
36
|
35
|
32
|
14
|
50
|
47
|
47
|
54
|
54
|
56
|
65
|
75
|
84
|
61
|
46
|
62
|
23
|
10
|
14
|
|
2025/02
|
48
|
24
|
18
|
34
|
54
|
58
|
22
|
51
|
41
|
40
|
47
|
56
|
53
|
53
|
59
|
61
|
46
|
54
|
39
|
37
|
23
|
21
|
22
|
34
|
52
|
70
|
76
|
60
|
|||
|
2025/01
|
73
|
71
|
70
|
58
|
70
|
73
|
68
|
70
|
65
|
57
|
49
|
51
|
62
|
60
|
70
|
78
|
62
|
58
|
58
|
60
|
65
|
71
|
69
|
52
|
47
|
23
|
25
|
46
|
124
|
56
|
50
|
|
2024/12
|
64
|
66
|
52
|
50
|
58
|
49
|
45
|
40
|
50
|
51
|
43
|
30
|
34
|
47
|
54
|
53
|
59
|
60
|
59
|
50
|
52
|
67
|
72
|
52
|
60
|
64
|
72
|
75
|
68
|
67
|
72
|
|
2024/11
|
22
|
27
|
41
|
50
|
50
|
46
|
34
|
37
|
49
|
50
|
45
|
36
|
33
|
40
|
40
|
24
|
31
|
19
|
19
|
19
|
23
|
28
|
33
|
39
|
35
|
18
|
29
|
31
|
39
|
55
|
|
|
2024/10
|
22
|
17
|
25
|
26
|
25
|
32
|
34
|
27
|
29
|
40
|
49
|
49
|
45
|
49
|
51
|
39
|
42
|
48
|
41
|
23
|
32
|
38
|
35
|
37
|
35
|
35
|
40
|
17
|
34
|
46
|
28
|
|
2024/09
|
36
|
42
|
46
|
32
|
29
|
18
|
16
|
20
|
19
|
31
|
44
|
51
|
34
|
41
|
27
|
26
|
29
|
22
|
37
|
22
|
23
|
17
|
19
|
22
|
20
|
29
|
27
|
24
|
28
|
20
|
|
|
2024/08
|
25
|
28
|
34
|
44
|
38
|
38
|
32
|
33
|
35
|
47
|
40
|
32
|
24
|
27
|
22
|
20
|
23
|
19
|
18
|
17
|
16
|
23
|
28
|
27
|
39
|
43
|
35
|
33
|
37
|
33
|
35
|
|
2024/07
|
19
|
19
|
21
|
20
|
20
|
17
|
13
|
17
|
16
|
20
|
21
|
25
|
23
|
25
|
20
|
19
|
17
|
17
|
17
|
23
|
22
|
28
|
35
|
31
|
21
|
11
|
13
|
18
|
19
|
20
|
13
|
|
2024/06
|
12
|
11
|
35
|
24
|
23
|
28
|
29
|
32
|
23
|
26
|
21
|
26
|
32
|
21
|
19
|
17
|
17
|
25
|
20
|
23
|
23
|
31
|
22
|
17
|
20
|
24
|
23
|
20
|
16
|
19
|
|
|
2024/05
|
26
|
24
|
33
|
40
|
24
|
35
|
53
|
49
|
50
|
50
|
47
|
33
|
45
|
39
|
48
|
57
|
57
|
55
|
45
|
20
|
13
|
13
|
24
|
21
|
29
|
17
|
16
|
25
|
34
|
46
|
33
|
|
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