Air Quality
Excellent
No health implications.
27
PM2.5
43
PM10
40
O3
0.8
CO
18
SO2
20
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Apr
49
Excellent
Mon
20 Apr
55
Good
Tue
21 Apr
50
Excellent
Wed
22 Apr
50
Excellent
Thu
23 Apr
54
Good
Fri
24 Apr
52
Good
Sat
25 Apr
26
Excellent
Air quality in the last 12 months (Longnan)
|
2026/03
|
17
|
31
|
22
|
31
|
34
|
38
|
47
|
48
|
37
|
37
|
51
|
55
|
48
|
52
|
51
|
52
|
52
|
45
|
40
|
44
|
42
|
48
|
50
|
39
|
45
|
37
|
46
|
37
|
45
|
60
|
33
|
|
2026/02
|
24
|
42
|
51
|
60
|
58
|
59
|
30
|
39
|
41
|
51
|
44
|
49
|
53
|
43
|
35
|
42
|
57
|
46
|
42
|
42
|
50
|
59
|
54
|
59
|
36
|
32
|
28
|
14
|
|||
|
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
|
|
|
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