Air Quality
Excellent
No health implications.
5
PM2.5
18
PM10
34
O3
0.6
CO
5
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Jun
44
Excellent
Sun
15 Jun
50
Excellent
Mon
16 Jun
51
Good
Tue
17 Jun
51
Good
Wed
18 Jun
52
Good
Thu
19 Jun
51
Good
Fri
20 Jun
25
Excellent
Air quality in the last 12 months (Longchuan)
|
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
|
|
2024/11
|
22
|
20
|
39
|
45
|
43
|
46
|
37
|
36
|
47
|
52
|
49
|
37
|
33
|
30
|
37
|
22
|
26
|
19
|
19
|
17
|
19
|
26
|
31
|
41
|
29
|
15
|
28
|
31
|
39
|
54
|
|
|
2024/10
|
23
|
18
|
28
|
29
|
29
|
34
|
32
|
31
|
32
|
35
|
46
|
51
|
52
|
47
|
46
|
36
|
36
|
42
|
43
|
28
|
28
|
32
|
25
|
32
|
37
|
42
|
45
|
16
|
25
|
37
|
31
|
|
2024/09
|
28
|
36
|
36
|
25
|
24
|
14
|
15
|
17
|
18
|
25
|
39
|
44
|
30
|
30
|
21
|
25
|
23
|
21
|
31
|
23
|
16
|
13
|
12
|
17
|
23
|
28
|
28
|
23
|
26
|
20
|
|
|
2024/08
|
23
|
29
|
31
|
38
|
28
|
37
|
35
|
36
|
39
|
40
|
34
|
32
|
17
|
19
|
19
|
20
|
24
|
15
|
16
|
16
|
14
|
20
|
23
|
26
|
30
|
36
|
38
|
33
|
32
|
29
|
26
|
|
2024/07
|
22
|
20
|
18
|
21
|
21
|
18
|
15
|
20
|
22
|
23
|
20
|
20
|
19
|
24
|
18
|
17
|
16
|
18
|
18
|
22
|
22
|
23
|
29
|
30
|
24
|
14
|
12
|
13
|
16
|
19
|
13
|
|
2024/06
|
14
|
11
|
30
|
19
|
22
|
23
|
25
|
25
|
24
|
24
|
21
|
28
|
35
|
30
|
19
|
23
|
24
|
25
|
20
|
20
|
22
|
29
|
24
|
17
|
19
|
21
|
21
|
20
|
15
|
18
|
|
|
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