Air Quality
Excellent
No health implications.
5
PM2.5
8
PM10
52
O3
0.4
CO
4
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Aug
53
Good
Fri
15 Aug
46
Excellent
Sat
16 Aug
58
Good
Sun
17 Aug
59
Good
Mon
18 Aug
58
Good
Tue
19 Aug
57
Good
Wed
20 Aug
41
Excellent
Air quality in the last 12 months (Longchuan)
|
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
|
|
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
|
|
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