Air Quality
Excellent
No health implications.
8
PM2.5
16
PM10
55
O3
0.7
CO
5
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
25 May
38
Excellent
Mon
26 May
43
Excellent
Tue
27 May
41
Excellent
Wed
28 May
41
Excellent
Thu
29 May
51
Good
Fri
30 May
56
Good
Sat
31 May
28
Excellent
Air quality in the last 12 months (Longchuan)
|
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
|
|||
|
2025/01
|
56
|
50
|
48
|
51
|
55
|
53
|
52
|
50
|
45
|
48
|
52
|
53
|
53
|
51
|
53
|
50
|
53
|
50
|
50
|
47
|
50
|
53
|
58
|
49
|
52
|
71
|
54
|
54
|
121
|
74
|
63
|
|
2024/12
|
40
|
38
|
38
|
35
|
36
|
39
|
48
|
49
|
49
|
42
|
54
|
58
|
44
|
44
|
37
|
35
|
39
|
39
|
40
|
38
|
47
|
69
|
40
|
39
|
46
|
51
|
54
|
56
|
48
|
47
|
48
|
|
2024/11
|
41
|
47
|
40
|
36
|
31
|
24
|
25
|
24
|
26
|
29
|
28
|
26
|
27
|
25
|
28
|
31
|
36
|
34
|
34
|
35
|
31
|
32
|
37
|
40
|
37
|
34
|
38
|
37
|
42
|
34
|
|
|
2024/10
|
19
|
15
|
26
|
19
|
18
|
21
|
21
|
23
|
26
|
26
|
27
|
28
|
33
|
38
|
44
|
34
|
26
|
34
|
41
|
40
|
28
|
31
|
32
|
32
|
27
|
29
|
37
|
36
|
28
|
30
|
37
|
|
2024/09
|
19
|
27
|
21
|
28
|
22
|
24
|
33
|
30
|
29
|
29
|
19
|
23
|
25
|
21
|
30
|
29
|
34
|
32
|
34
|
42
|
40
|
32
|
31
|
31
|
36
|
27
|
22
|
21
|
25
|
18
|
|
|
2024/08
|
13
|
12
|
14
|
18
|
14
|
13
|
16
|
19
|
16
|
19
|
18
|
21
|
27
|
30
|
31
|
23
|
24
|
18
|
15
|
16
|
19
|
15
|
20
|
18
|
19
|
19
|
22
|
20
|
26
|
25
|
16
|
|
2024/07
|
15
|
14
|
15
|
11
|
18
|
21
|
19
|
21
|
18
|
18
|
10
|
15
|
26
|
22
|
22
|
25
|
27
|
18
|
16
|
14
|
13
|
12
|
15
|
19
|
18
|
18
|
15
|
17
|
15
|
15
|
20
|
|
2024/06
|
49
|
36
|
36
|
41
|
40
|
35
|
32
|
31
|
37
|
46
|
47
|
29
|
13
|
16
|
23
|
38
|
33
|
30
|
35
|
40
|
31
|
27
|
22
|
22
|
17
|
27
|
16
|
18
|
20
|
20
|
|
|
2024/05
|
78
|
57
|
46
|
61
|
72
|
34
|
53
|
54
|
56
|
45
|
34
|
44
|
44
|
49
|
49
|
49
|
43
|
48
|
57
|
58
|
38
|
41
|
39
|
33
|
30
|
22
|
19
|
24
|
39
|
41
|
49
|
|
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