Air Quality
Heavy
Healthy people will commonly show symptoms. People with respiratory or heart diseases will be significantly affected and will experience reduced endurance in activities.
58
PM2.5
359
*
PM10
63
O3
0.5
CO
4
SO2
13
NO2
Healthy people will commonly show symptoms. People with respiratory or heart diseases will be significantly affected and will experience reduced endurance in activities.
Advise
Children, seniors and individuals with heart or lung diseases should stay indoors and avoid outdoor activities. General population should reduce outdoor activities.
Air Quality
Today
27 Nov
103
Light
Fri
28 Nov
93
Good
Sat
29 Nov
93
Good
Sun
30 Nov
89
Good
Mon
1 Dec
86
Good
Tue
2 Dec
89
Good
Wed
3 Dec
40
Excellent
Air quality in the last 12 months (Hongdong)
|
2025/10
|
64
|
43
|
56
|
51
|
48
|
24
|
35
|
47
|
24
|
18
|
27
|
34
|
49
|
62
|
43
|
49
|
40
|
40
|
55
|
47
|
53
|
63
|
70
|
90
|
62
|
75
|
56
|
75
|
80
|
111
|
81
|
|
2025/09
|
55
|
53
|
31
|
28
|
34
|
70
|
71
|
67
|
54
|
53
|
26
|
32
|
49
|
58
|
54
|
43
|
27
|
32
|
28
|
54
|
37
|
36
|
53
|
60
|
55
|
41
|
45
|
63
|
67
|
70
|
|
|
2025/08
|
51
|
49
|
50
|
51
|
43
|
41
|
44
|
48
|
33
|
42
|
54
|
56
|
54
|
55
|
38
|
22
|
46
|
41
|
46
|
42
|
34
|
50
|
37
|
42
|
45
|
42
|
43
|
34
|
42
|
56
|
58
|
|
2025/07
|
48
|
38
|
38
|
40
|
24
|
39
|
36
|
41
|
44
|
51
|
56
|
54
|
53
|
55
|
56
|
53
|
50
|
49
|
51
|
46
|
52
|
58
|
32
|
28
|
39
|
43
|
45
|
44
|
49
|
49
|
41
|
|
2025/06
|
59
|
52
|
41
|
47
|
52
|
53
|
63
|
59
|
66
|
56
|
63
|
59
|
62
|
40
|
35
|
40
|
47
|
57
|
47
|
49
|
47
|
49
|
49
|
44
|
54
|
46
|
53
|
39
|
50
|
48
|
|
|
2025/05
|
71
|
87
|
46
|
61
|
179
|
148
|
107
|
73
|
55
|
43
|
52
|
54
|
68
|
51
|
54
|
73
|
136
|
64
|
78
|
70
|
69
|
63
|
44
|
37
|
53
|
52
|
50
|
60
|
62
|
62
|
61
|
|
2025/04
|
71
|
61
|
77
|
94
|
62
|
83
|
105
|
91
|
74
|
59
|
127
|
208
|
102
|
43
|
54
|
116
|
152
|
117
|
81
|
71
|
107
|
160
|
141
|
61
|
71
|
74
|
63
|
53
|
62
|
110
|
|
|
2025/03
|
83
|
88
|
47
|
46
|
72
|
75
|
75
|
79
|
78
|
82
|
109
|
237
|
111
|
91
|
47
|
34
|
45
|
39
|
47
|
43
|
58
|
69
|
114
|
335
|
321
|
245
|
230
|
174
|
49
|
53
|
67
|
|
2025/02
|
180
|
121
|
26
|
40
|
26
|
86
|
42
|
31
|
50
|
75
|
89
|
68
|
54
|
70
|
75
|
66
|
67
|
81
|
73
|
77
|
102
|
98
|
47
|
51
|
69
|
62
|
73
|
73
|
|||
|
2025/01
|
81
|
66
|
66
|
90
|
92
|
42
|
35
|
31
|
46
|
55
|
60
|
51
|
87
|
69
|
43
|
54
|
62
|
93
|
82
|
94
|
89
|
110
|
151
|
125
|
77
|
79
|
29
|
48
|
125
|
102
|
173
|
|
2024/12
|
71
|
58
|
53
|
49
|
30
|
44
|
33
|
44
|
66
|
85
|
106
|
96
|
68
|
51
|
64
|
68
|
68
|
53
|
67
|
67
|
35
|
63
|
85
|
130
|
159
|
85
|
41
|
51
|
77
|
89
|
63
|
|
2024/11
|
71
|
82
|
109
|
58
|
61
|
71
|
83
|
86
|
79
|
99
|
127
|
145
|
86
|
68
|
90
|
70
|
59
|
57
|
52
|
67
|
82
|
74
|
83
|
109
|
47
|
43
|
71
|
34
|
47
|
64
|
|
|
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