Air Quality
Excellent
No health implications.
14
PM2.5
33
PM10
84
O3
0.3
CO
5
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Mar
47
Excellent
Sat
15 Mar
54
Good
Sun
16 Mar
58
Good
Mon
17 Mar
63
Good
Tue
18 Mar
61
Good
Wed
19 Mar
69
Good
Thu
20 Mar
32
Excellent
Air quality in the last 12 months (Longtan)
|
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
|
|
2024/04
|
70
|
76
|
74
|
57
|
78
|
74
|
66
|
49
|
66
|
70
|
63
|
67
|
54
|
75
|
154
|
113
|
71
|
97
|
178
|
180
|
125
|
78
|
122
|
71
|
62
|
120
|
71
|
58
|
58
|
31
|
|
|
2024/03
|
45
|
47
|
34
|
39
|
44
|
52
|
38
|
35
|
40
|
64
|
95
|
41
|
47
|
45
|
55
|
69
|
26
|
43
|
43
|
42
|
36
|
32
|
39
|
24
|
27
|
47
|
52
|
309
|
108
|
57
|
50
|
|
2024/02
|
115
|
131
|
221
|
126
|
171
|
169
|
128
|
105
|
157
|
263
|
94
|
51
|
84
|
50
|
62
|
38
|
35
|
35
|
34
|
38
|
56
|
64
|
71
|
100
|
137
|
53
|
49
|
85
|
78
|
||
|
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