Air Quality
Excellent
No health implications.
7
PM2.5
20
PM10
50
O3
0.4
CO
5
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
11 Aug
68
Good
Tue
12 Aug
57
Good
Wed
13 Aug
59
Good
Thu
14 Aug
59
Good
Fri
15 Aug
56
Good
Sat
16 Aug
59
Good
Sun
17 Aug
21
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