Air Quality
Excellent
No health implications.
24
PM2.5
47
PM10
99
O3
0.6
CO
6
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
11 Feb
66
Good
Thu
12 Feb
64
Good
Fri
13 Feb
60
Good
Sat
14 Feb
51
Good
Sun
15 Feb
51
Good
Mon
16 Feb
53
Good
Tue
17 Feb
21
Excellent
Air quality in the last 12 months (Longchuan)
|
2026/01
|
59
|
57
|
48
|
48
|
52
|
54
|
53
|
61
|
59
|
57
|
55
|
55
|
51
|
50
|
48
|
53
|
47
|
60
|
60
|
52
|
50
|
48
|
55
|
52
|
58
|
57
|
50
|
55
|
53
|
54
|
51
|
|
2025/12
|
52
|
51
|
50
|
51
|
48
|
48
|
44
|
46
|
47
|
49
|
48
|
48
|
49
|
47
|
45
|
43
|
46
|
42
|
45
|
46
|
50
|
53
|
51
|
46
|
45
|
47
|
47
|
49
|
49
|
44
|
53
|
|
2025/11
|
32
|
23
|
16
|
16
|
22
|
17
|
22
|
30
|
31
|
25
|
24
|
27
|
29
|
28
|
32
|
32
|
34
|
35
|
30
|
27
|
30
|
29
|
30
|
32
|
37
|
37
|
41
|
42
|
50
|
49
|
|
|
2025/10
|
15
|
14
|
20
|
20
|
19
|
19
|
21
|
20
|
25
|
24
|
23
|
23
|
23
|
28
|
31
|
27
|
21
|
21
|
19
|
22
|
28
|
27
|
25
|
28
|
26
|
25
|
28
|
31
|
34
|
29
|
34
|
|
2025/09
|
25
|
27
|
26
|
23
|
25
|
21
|
25
|
28
|
29
|
29
|
27
|
20
|
17
|
14
|
14
|
14
|
18
|
27
|
28
|
28
|
23
|
27
|
26
|
24
|
26
|
33
|
30
|
30
|
29
|
18
|
|
|
2025/08
|
19
|
23
|
22
|
22
|
21
|
23
|
17
|
18
|
18
|
23
|
28
|
30
|
28
|
25
|
26
|
24
|
28
|
21
|
24
|
20
|
18
|
18
|
21
|
16
|
20
|
28
|
28
|
28
|
16
|
25
|
26
|
|
2025/07
|
15
|
18
|
22
|
16
|
13
|
16
|
15
|
17
|
18
|
21
|
18
|
20
|
25
|
16
|
14
|
14
|
16
|
16
|
15
|
22
|
15
|
22
|
26
|
23
|
13
|
16
|
13
|
21
|
20
|
16
|
19
|
|
2025/06
|
17
|
15
|
36
|
48
|
48
|
39
|
32
|
27
|
31
|
18
|
30
|
38
|
38
|
30
|
19
|
18
|
12
|
14
|
18
|
25
|
21
|
19
|
16
|
18
|
20
|
19
|
18
|
13
|
15
|
22
|
|
|
2025/05
|
38
|
19
|
24
|
27
|
32
|
38
|
45
|
42
|
51
|
56
|
64
|
48
|
36
|
43
|
35
|
37
|
37
|
33
|
38
|
34
|
36
|
35
|
38
|
36
|
15
|
19
|
34
|
20
|
15
|
16
|
16
|
|
2025/04
|
124
|
103
|
84
|
115
|
110
|
100
|
85
|
106
|
99
|
87
|
75
|
51
|
34
|
36
|
44
|
42
|
27
|
33
|
42
|
42
|
43
|
48
|
57
|
73
|
77
|
91
|
90
|
78
|
46
|
44
|
|
|
2025/03
|
58
|
68
|
64
|
56
|
69
|
71
|
81
|
85
|
75
|
61
|
73
|
87
|
99
|
73
|
70
|
63
|
69
|
83
|
71
|
75
|
87
|
83
|
72
|
61
|
51
|
51
|
76
|
122
|
137
|
124
|
118
|
|
2025/02
|
81
|
81
|
69
|
67
|
73
|
78
|
69
|
58
|
60
|
59
|
49
|
56
|
56
|
70
|
68
|
76
|
60
|
59
|
67
|
72
|
70
|
72
|
62
|
62
|
57
|
52
|
49
|
57
|
|||
|
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