Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
48
*
PM2.5
81
PM10
30
O3
0.8
CO
8
SO2
28
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
31 Dec
106
Light
Thu
1 Jan
127
Light
Fri
2 Jan
127
Light
Sat
3 Jan
135
Light
Sun
4 Jan
119
Light
Mon
5 Jan
104
Light
Tue
6 Jan
18
Excellent
Hongdong Air quality rank
Air quality in the last 12 months (Hongdong)
|
2025/11
|
68
|
66
|
79
|
91
|
100
|
93
|
78
|
64
|
83
|
74
|
88
|
89
|
60
|
80
|
107
|
66
|
28
|
23
|
60
|
76
|
64
|
91
|
124
|
152
|
81
|
201
|
217
|
148
|
126
|
91
|
|
|
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
|
|
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