Air Quality
Excellent
No health implications.
21
PM2.5
29
PM10
67
O3
0.9
CO
6
SO2
17
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Mar
60
Good
Mon
30 Mar
55
Good
Tue
31 Mar
54
Good
Wed
1 Apr
59
Good
Thu
2 Apr
54
Good
Fri
3 Apr
57
Good
Sat
4 Apr
40
Excellent
Air quality in the last 12 months (Longchuan)
|
2026/02
|
20
|
32
|
46
|
57
|
54
|
47
|
27
|
30
|
38
|
46
|
40
|
38
|
49
|
39
|
30
|
41
|
46
|
37
|
42
|
45
|
54
|
56
|
53
|
58
|
43
|
34
|
33
|
13
|
|||
|
2026/01
|
51
|
17
|
34
|
47
|
41
|
35
|
44
|
43
|
52
|
50
|
54
|
60
|
59
|
61
|
63
|
64
|
66
|
75
|
72
|
55
|
26
|
32
|
40
|
50
|
50
|
52
|
56
|
35
|
43
|
44
|
31
|
|
2025/12
|
47
|
48
|
58
|
62
|
60
|
58
|
59
|
55
|
58
|
53
|
55
|
53
|
42
|
33
|
44
|
46
|
52
|
57
|
55
|
47
|
61
|
69
|
54
|
52
|
21
|
34
|
42
|
46
|
46
|
49
|
53
|
|
2025/11
|
35
|
42
|
37
|
18
|
16
|
29
|
37
|
44
|
36
|
18
|
28
|
14
|
12
|
27
|
44
|
49
|
44
|
42
|
23
|
38
|
39
|
51
|
54
|
50
|
45
|
67
|
58
|
67
|
69
|
58
|
|
|
2025/10
|
40
|
27
|
34
|
33
|
23
|
23
|
31
|
39
|
39
|
37
|
33
|
33
|
25
|
27
|
28
|
30
|
35
|
36
|
32
|
17
|
10
|
11
|
29
|
33
|
34
|
37
|
53
|
53
|
30
|
34
|
34
|
|
2025/09
|
27
|
26
|
28
|
28
|
29
|
33
|
19
|
11
|
15
|
19
|
19
|
25
|
25
|
30
|
24
|
27
|
30
|
17
|
15
|
9
|
16
|
21
|
18
|
10
|
17
|
26
|
32
|
33
|
34
|
38
|
|
|
2025/08
|
23
|
23
|
17
|
14
|
12
|
21
|
23
|
29
|
32
|
20
|
16
|
22
|
29
|
12
|
18
|
24
|
24
|
18
|
14
|
19
|
25
|
23
|
26
|
19
|
24
|
18
|
20
|
25
|
24
|
24
|
28
|
|
2025/07
|
21
|
24
|
31
|
37
|
21
|
22
|
34
|
36
|
33
|
14
|
10
|
20
|
30
|
28
|
31
|
35
|
40
|
29
|
19
|
12
|
11
|
10
|
17
|
22
|
20
|
25
|
29
|
23
|
25
|
22
|
18
|
|
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
|
|
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