Air Quality
Excellent
No health implications.
17
PM2.5
31
PM10
48
O3
0.4
CO
5
SO2
42
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Mar
50
Excellent
Sun
22 Mar
56
Good
Mon
23 Mar
50
Excellent
Tue
24 Mar
53
Good
Wed
25 Mar
50
Excellent
Thu
26 Mar
49
Excellent
Fri
27 Mar
31
Excellent
Air quality in the last 12 months (Longwan)
|
2026/02
|
27
|
39
|
54
|
46
|
49
|
41
|
18
|
37
|
35
|
39
|
51
|
69
|
57
|
37
|
31
|
26
|
58
|
44
|
60
|
50
|
45
|
39
|
114
|
50
|
23
|
33
|
19
|
24
|
|||
|
2026/01
|
26
|
27
|
57
|
65
|
40
|
51
|
55
|
65
|
71
|
69
|
65
|
71
|
71
|
83
|
63
|
73
|
72
|
51
|
40
|
12
|
36
|
50
|
50
|
60
|
73
|
51
|
23
|
40
|
39
|
40
|
14
|
|
2025/12
|
69
|
66
|
53
|
50
|
51
|
51
|
56
|
64
|
39
|
50
|
55
|
52
|
41
|
43
|
67
|
59
|
69
|
78
|
65
|
63
|
58
|
29
|
56
|
61
|
30
|
41
|
41
|
48
|
54
|
64
|
36
|
|
2025/11
|
32
|
57
|
37
|
24
|
21
|
37
|
43
|
47
|
31
|
41
|
24
|
13
|
22
|
51
|
50
|
49
|
33
|
18
|
38
|
51
|
57
|
65
|
59
|
59
|
64
|
88
|
84
|
96
|
94
|
74
|
|
|
2025/10
|
20
|
18
|
17
|
15
|
26
|
33
|
28
|
35
|
27
|
29
|
32
|
28
|
24
|
25
|
18
|
32
|
23
|
30
|
11
|
16
|
17
|
27
|
40
|
30
|
37
|
44
|
38
|
29
|
20
|
34
|
19
|
|
2025/09
|
22
|
19
|
19
|
28
|
23
|
20
|
18
|
22
|
23
|
23
|
22
|
32
|
41
|
27
|
25
|
18
|
18
|
18
|
15
|
20
|
18
|
20
|
22
|
24
|
23
|
20
|
24
|
27
|
21
|
22
|
|
|
2025/08
|
40
|
39
|
41
|
30
|
23
|
36
|
45
|
49
|
44
|
43
|
36
|
26
|
24
|
15
|
16
|
19
|
22
|
17
|
22
|
39
|
29
|
31
|
24
|
20
|
17
|
16
|
17
|
17
|
16
|
14
|
15
|
|
2025/07
|
19
|
26
|
24
|
24
|
17
|
14
|
9
|
10
|
15
|
18
|
21
|
28
|
29
|
40
|
45
|
40
|
33
|
21
|
21
|
18
|
12
|
17
|
24
|
21
|
15
|
15
|
16
|
17
|
19
|
20
|
40
|
|
2025/06
|
37
|
50
|
21
|
32
|
36
|
39
|
39
|
36
|
32
|
18
|
7
|
29
|
22
|
33
|
29
|
20
|
43
|
34
|
25
|
22
|
34
|
37
|
21
|
34
|
31
|
30
|
28
|
24
|
20
|
15
|
|
|
2025/05
|
38
|
45
|
59
|
30
|
36
|
48
|
57
|
54
|
51
|
29
|
31
|
40
|
31
|
34
|
31
|
38
|
48
|
18
|
36
|
40
|
27
|
26
|
39
|
25
|
58
|
44
|
23
|
37
|
20
|
46
|
46
|
|
2025/04
|
32
|
52
|
57
|
50
|
45
|
56
|
57
|
58
|
62
|
54
|
48
|
56
|
85
|
91
|
68
|
57
|
80
|
62
|
49
|
45
|
49
|
41
|
26
|
41
|
27
|
45
|
50
|
44
|
44
|
41
|
|
|
2025/03
|
52
|
54
|
52
|
31
|
21
|
19
|
40
|
54
|
53
|
44
|
56
|
47
|
32
|
35
|
22
|
29
|
44
|
47
|
47
|
58
|
50
|
53
|
58
|
74
|
76
|
57
|
58
|
28
|
44
|
28
|
26
|
|
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