Air Quality
Excellent
No health implications.
13
PM2.5
27
PM10
103
O3
0.3
CO
7
SO2
17
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
5 Jun
64
Good
Fri
6 Jun
63
Good
Sat
7 Jun
53
Good
Sun
8 Jun
86
Good
Mon
9 Jun
84
Good
Tue
10 Jun
50
Excellent
Wed
11 Jun
17
Excellent
Air quality in the last 12 months (Longtan)
|
2025/04
|
63
|
59
|
61
|
50
|
36
|
61
|
45
|
70
|
68
|
96
|
79
|
40
|
15
|
24
|
33
|
35
|
54
|
49
|
33
|
64
|
138
|
27
|
30
|
74
|
31
|
54
|
53
|
55
|
60
|
58
|
|
|
2025/03
|
54
|
32
|
57
|
34
|
51
|
73
|
57
|
69
|
95
|
77
|
64
|
102
|
58
|
44
|
43
|
59
|
90
|
79
|
70
|
82
|
66
|
80
|
56
|
99
|
96
|
65
|
43
|
30
|
37
|
43
|
70
|
|
2025/02
|
111
|
145
|
74
|
46
|
59
|
66
|
45
|
31
|
41
|
69
|
67
|
62
|
64
|
54
|
67
|
42
|
32
|
35
|
42
|
43
|
43
|
46
|
46
|
32
|
80
|
66
|
75
|
107
|
|||
|
2025/01
|
35
|
31
|
34
|
62
|
94
|
98
|
70
|
73
|
64
|
64
|
107
|
118
|
66
|
62
|
39
|
50
|
40
|
52
|
77
|
167
|
108
|
129
|
99
|
128
|
169
|
90
|
45
|
71
|
76
|
39
|
69
|
|
2024/12
|
47
|
22
|
21
|
28
|
28
|
48
|
41
|
44
|
55
|
51
|
47
|
49
|
99
|
40
|
26
|
37
|
50
|
50
|
54
|
85
|
92
|
40
|
53
|
32
|
51
|
36
|
33
|
33
|
47
|
54
|
43
|
|
2024/11
|
84
|
83
|
63
|
40
|
26
|
44
|
52
|
63
|
55
|
47
|
108
|
52
|
45
|
32
|
36
|
29
|
56
|
57
|
36
|
54
|
53
|
55
|
79
|
49
|
49
|
67
|
29
|
55
|
33
|
43
|
|
|
2024/10
|
21
|
20
|
27
|
28
|
39
|
47
|
46
|
38
|
37
|
25
|
26
|
54
|
42
|
33
|
24
|
30
|
51
|
55
|
30
|
30
|
20
|
49
|
53
|
58
|
70
|
181
|
65
|
42
|
50
|
96
|
61
|
|
2024/09
|
18
|
21
|
24
|
31
|
18
|
17
|
23
|
29
|
30
|
18
|
23
|
24
|
26
|
25
|
32
|
24
|
34
|
33
|
26
|
24
|
25
|
38
|
30
|
28
|
29
|
31
|
37
|
38
|
31
|
20
|
|
|
2024/08
|
16
|
22
|
26
|
20
|
14
|
19
|
28
|
37
|
26
|
29
|
19
|
26
|
19
|
27
|
38
|
40
|
36
|
38
|
21
|
19
|
15
|
20
|
19
|
38
|
28
|
21
|
27
|
28
|
29
|
34
|
24
|
|
2024/07
|
67
|
48
|
15
|
31
|
29
|
21
|
39
|
66
|
56
|
63
|
78
|
100
|
89
|
70
|
63
|
41
|
19
|
28
|
32
|
28
|
24
|
17
|
11
|
29
|
16
|
10
|
8
|
10
|
12
|
20
|
18
|
|
2024/06
|
26
|
33
|
32
|
45
|
50
|
36
|
38
|
21
|
26
|
23
|
33
|
38
|
36
|
20
|
20
|
23
|
26
|
32
|
44
|
34
|
41
|
60
|
39
|
10
|
18
|
32
|
40
|
47
|
34
|
55
|
|
|
2024/05
|
31
|
60
|
66
|
55
|
39
|
46
|
42
|
36
|
44
|
50
|
65
|
38
|
38
|
49
|
30
|
33
|
35
|
49
|
24
|
46
|
19
|
48
|
31
|
29
|
29
|
17
|
13
|
26
|
34
|
30
|
20
|
|
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