Air Quality
Excellent
No health implications.
20
PM2.5
39
PM10
29
O3
0.5
CO
6
SO2
22
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Dec
50
Excellent
Tue
16 Dec
54
Good
Wed
17 Dec
56
Good
Thu
18 Dec
55
Good
Fri
19 Dec
51
Good
Sat
20 Dec
26
Excellent
Sun
21 Dec
35
Excellent
Longchuan Air quality rank
Air quality in the last 12 months (Longchuan)
|
2025/11
|
35
|
42
|
37
|
18
|
16
|
29
|
37
|
44
|
36
|
18
|
28
|
14
|
12
|
27
|
44
|
49
|
44
|
42
|
23
|
38
|
39
|
51
|
54
|
50
|
45
|
67
|
58
|
67
|
69
|
58
|
|
|
2025/10
|
40
|
27
|
34
|
33
|
23
|
23
|
31
|
39
|
39
|
37
|
33
|
33
|
25
|
27
|
28
|
30
|
35
|
36
|
32
|
17
|
10
|
11
|
29
|
33
|
34
|
37
|
53
|
53
|
30
|
34
|
34
|
|
2025/09
|
27
|
26
|
28
|
28
|
29
|
33
|
19
|
11
|
15
|
19
|
19
|
25
|
25
|
30
|
24
|
27
|
30
|
17
|
15
|
9
|
16
|
21
|
18
|
10
|
17
|
26
|
32
|
33
|
34
|
38
|
|
|
2025/08
|
23
|
23
|
17
|
14
|
12
|
21
|
23
|
29
|
32
|
20
|
16
|
22
|
29
|
12
|
18
|
24
|
24
|
18
|
14
|
19
|
25
|
23
|
26
|
19
|
24
|
18
|
20
|
25
|
24
|
24
|
28
|
|
2025/07
|
21
|
24
|
31
|
37
|
21
|
22
|
34
|
36
|
33
|
14
|
10
|
20
|
30
|
28
|
31
|
35
|
40
|
29
|
19
|
12
|
11
|
10
|
17
|
22
|
20
|
25
|
29
|
23
|
25
|
22
|
18
|
|
2025/06
|
30
|
27
|
14
|
27
|
35
|
38
|
38
|
35
|
30
|
26
|
22
|
26
|
16
|
17
|
17
|
18
|
14
|
22
|
20
|
15
|
15
|
18
|
22
|
21
|
22
|
17
|
20
|
21
|
19
|
18
|
|
|
2025/05
|
52
|
49
|
53
|
51
|
35
|
29
|
28
|
47
|
32
|
30
|
28
|
37
|
42
|
39
|
32
|
23
|
23
|
30
|
23
|
22
|
25
|
30
|
27
|
22
|
44
|
43
|
43
|
38
|
16
|
17
|
34
|
|
2025/04
|
19
|
36
|
50
|
58
|
38
|
51
|
58
|
64
|
70
|
52
|
49
|
56
|
145
|
100
|
92
|
86
|
65
|
59
|
38
|
41
|
39
|
39
|
37
|
31
|
16
|
19
|
37
|
38
|
43
|
57
|
|
|
2025/03
|
51
|
38
|
36
|
25
|
13
|
12
|
18
|
31
|
38
|
50
|
50
|
43
|
33
|
33
|
30
|
11
|
50
|
43
|
45
|
51
|
54
|
56
|
62
|
66
|
73
|
58
|
42
|
46
|
13
|
9
|
8
|
|
2025/02
|
55
|
35
|
13
|
27
|
47
|
45
|
20
|
53
|
41
|
43
|
50
|
56
|
47
|
46
|
52
|
62
|
45
|
48
|
36
|
44
|
26
|
25
|
16
|
27
|
46
|
60
|
66
|
56
|
|||
|
2025/01
|
72
|
69
|
63
|
53
|
62
|
69
|
66
|
67
|
62
|
51
|
47
|
47
|
57
|
56
|
62
|
72
|
57
|
55
|
59
|
58
|
59
|
61
|
59
|
49
|
38
|
21
|
25
|
57
|
123
|
61
|
50
|
|
2024/12
|
60
|
57
|
54
|
49
|
58
|
62
|
45
|
34
|
48
|
46
|
45
|
27
|
30
|
60
|
52
|
53
|
57
|
54
|
54
|
58
|
51
|
59
|
74
|
57
|
66
|
66
|
71
|
78
|
71
|
69
|
66
|
|
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