Air Quality
Excellent
No health implications.
5
PM2.5
13
PM10
37
O3
0.6
CO
7
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Nov
51
Good
Tue
19 Nov
56
Good
Wed
20 Nov
68
Good
Thu
21 Nov
78
Good
Fri
22 Nov
83
Good
Sat
23 Nov
89
Good
Air quality in the last 12 months (Hengdong)
|
2024/10
|
33
|
52
|
54
|
51
|
52
|
77
|
74
|
55
|
57
|
64
|
74
|
81
|
162
|
78
|
51
|
46
|
49
|
44
|
30
|
33
|
46
|
24
|
37
|
44
|
54
|
72
|
66
|
89
|
80
|
55
|
57
|
|
2024/09
|
45
|
45
|
50
|
47
|
44
|
45
|
33
|
31
|
39
|
37
|
42
|
35
|
28
|
41
|
40
|
43
|
48
|
47
|
42
|
44
|
36
|
33
|
38
|
46
|
60
|
63
|
63
|
57
|
47
|
50
|
|
|
2024/08
|
18
|
19
|
29
|
30
|
34
|
30
|
28
|
29
|
35
|
35
|
27
|
30
|
26
|
31
|
36
|
35
|
42
|
48
|
30
|
37
|
47
|
23
|
24
|
27
|
34
|
34
|
40
|
26
|
30
|
35
|
45
|
|
2024/07
|
19
|
17
|
25
|
17
|
15
|
17
|
20
|
17
|
21
|
22
|
23
|
26
|
23
|
19
|
28
|
19
|
16
|
16
|
17
|
21
|
24
|
28
|
28
|
38
|
41
|
33
|
20
|
11
|
16
|
15
|
16
|
|
2024/06
|
22
|
27
|
35
|
20
|
22
|
32
|
39
|
38
|
40
|
25
|
25
|
20
|
19
|
22
|
20
|
26
|
14
|
18
|
18
|
23
|
22
|
21
|
23
|
20
|
9
|
16
|
25
|
25
|
19
|
21
|
|
|
2024/05
|
24
|
40
|
37
|
17
|
38
|
58
|
81
|
82
|
66
|
82
|
35
|
76
|
86
|
65
|
61
|
65
|
57
|
50
|
28
|
26
|
44
|
35
|
37
|
35
|
33
|
27
|
18
|
30
|
28
|
18
|
25
|
|
2024/04
|
35
|
50
|
29
|
30
|
35
|
40
|
48
|
49
|
45
|
40
|
54
|
52
|
47
|
57
|
57
|
44
|
27
|
46
|
30
|
29
|
38
|
49
|
40
|
45
|
37
|
34
|
44
|
53
|
46
|
12
|
|
|
2024/03
|
80
|
63
|
45
|
41
|
50
|
110
|
73
|
66
|
56
|
67
|
60
|
52
|
52
|
51
|
48
|
40
|
50
|
19
|
53
|
67
|
74
|
46
|
28
|
33
|
30
|
27
|
48
|
30
|
39
|
46
|
35
|
|
2024/02
|
40
|
16
|
20
|
40
|
71
|
31
|
60
|
111
|
133
|
192
|
113
|
89
|
49
|
51
|
55
|
41
|
39
|
30
|
52
|
49
|
14
|
25
|
35
|
40
|
62
|
52
|
75
|
44
|
54
|
||
|
2024/01
|
93
|
110
|
66
|
65
|
76
|
93
|
107
|
124
|
123
|
115
|
89
|
92
|
97
|
93
|
206
|
167
|
101
|
33
|
16
|
30
|
72
|
41
|
52
|
51
|
57
|
67
|
86
|
91
|
78
|
45
|
70
|
|
2023/12
|
50
|
65
|
74
|
64
|
46
|
63
|
66
|
64
|
67
|
64
|
15
|
43
|
55
|
57
|
19
|
32
|
39
|
35
|
62
|
55
|
68
|
56
|
63
|
77
|
79
|
89
|
94
|
157
|
223
|
233
|
195
|
|
2023/11
|
67
|
61
|
68
|
82
|
69
|
22
|
41
|
34
|
30
|
20
|
13
|
13
|
59
|
76
|
60
|
47
|
65
|
69
|
68
|
64
|
62
|
62
|
77
|
71
|
69
|
75
|
82
|
82
|
68
|
72
|
|
|
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