Air Quality
Excellent
No health implications.
21
PM2.5
28
PM10
50
O3
0.7
CO
7
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Feb
97
Good
Wed
18 Feb
76
Good
Thu
19 Feb
67
Good
Fri
20 Feb
53
Good
Sat
21 Feb
54
Good
Sun
22 Feb
55
Good
Mon
23 Feb
42
Excellent
Longnan Air quality rank
Air quality in the last 12 months (Longnan)
|
2026/01
|
35
|
17
|
36
|
51
|
42
|
35
|
42
|
51
|
56
|
56
|
60
|
65
|
62
|
66
|
74
|
78
|
71
|
84
|
79
|
38
|
32
|
41
|
40
|
50
|
54
|
65
|
49
|
39
|
49
|
55
|
28
|
|
2025/12
|
53
|
60
|
57
|
54
|
58
|
56
|
57
|
57
|
62
|
61
|
60
|
61
|
33
|
35
|
55
|
54
|
55
|
65
|
65
|
52
|
75
|
50
|
50
|
50
|
23
|
36
|
42
|
49
|
50
|
51
|
58
|
|
2025/11
|
33
|
47
|
37
|
14
|
17
|
30
|
44
|
46
|
43
|
20
|
35
|
18
|
19
|
33
|
46
|
53
|
53
|
41
|
24
|
39
|
42
|
55
|
55
|
56
|
47
|
71
|
63
|
74
|
79
|
62
|
|
|
2025/10
|
46
|
29
|
37
|
39
|
30
|
24
|
36
|
38
|
40
|
38
|
38
|
42
|
31
|
32
|
31
|
34
|
41
|
40
|
26
|
17
|
14
|
15
|
26
|
31
|
36
|
49
|
53
|
50
|
31
|
45
|
40
|
|
2025/09
|
35
|
27
|
29
|
35
|
34
|
32
|
19
|
13
|
14
|
20
|
20
|
31
|
30
|
36
|
34
|
29
|
30
|
21
|
21
|
12
|
21
|
21
|
21
|
14
|
20
|
24
|
33
|
36
|
39
|
49
|
|
|
2025/08
|
26
|
27
|
20
|
17
|
15
|
21
|
30
|
32
|
28
|
25
|
20
|
29
|
27
|
11
|
19
|
25
|
31
|
22
|
20
|
19
|
25
|
20
|
27
|
23
|
25
|
17
|
23
|
26
|
26
|
28
|
35
|
|
2025/07
|
27
|
25
|
34
|
38
|
20
|
25
|
33
|
38
|
35
|
15
|
12
|
21
|
34
|
26
|
28
|
35
|
39
|
29
|
18
|
16
|
12
|
13
|
19
|
21
|
23
|
24
|
22
|
20
|
22
|
19
|
19
|
|
2025/06
|
32
|
23
|
14
|
27
|
38
|
37
|
33
|
40
|
27
|
32
|
32
|
26
|
23
|
17
|
16
|
23
|
18
|
24
|
22
|
14
|
18
|
20
|
23
|
25
|
24
|
19
|
20
|
20
|
22
|
23
|
|
|
2025/05
|
61
|
53
|
49
|
47
|
30
|
33
|
38
|
56
|
34
|
32
|
31
|
43
|
46
|
43
|
34
|
23
|
20
|
24
|
25
|
26
|
27
|
32
|
32
|
27
|
49
|
49
|
45
|
41
|
11
|
25
|
41
|
|
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
|
|||
|
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