Air Quality
Excellent
No health implications.
4
PM2.5
9
PM10
79
O3
0.5
CO
6
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Apr
53
Good
Tue
15 Apr
60
Good
Wed
16 Apr
61
Good
Thu
17 Apr
59
Good
Fri
18 Apr
63
Good
Sat
19 Apr
57
Good
Sun
20 Apr
40
Excellent
Air quality in the last 12 months (Longtan)
|
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
|
|
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
|
|
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