Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
48
PM2.5
109
*
PM10
81
O3
0.8
CO
5
SO2
19
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
17 Jan
127
Light
Sun
18 Jan
128
Light
Mon
19 Jan
109
Light
Tue
20 Jan
107
Light
Wed
21 Jan
127
Light
Thu
22 Jan
134
Light
Fri
23 Jan
48
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