Air Quality
Excellent
No health implications.
17
PM2.5
40
PM10
11
O3
0.7
CO
5
SO2
38
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
8 Jan
62
Good
Thu
9 Jan
90
Good
Fri
10 Jan
120
Light
Sat
11 Jan
126
Light
Sun
12 Jan
97
Good
Mon
13 Jan
22
Excellent
Tue
14 Jan
21
Excellent
Hongdong Air quality rank
Air quality in the last 12 months (Hongdong)
|
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
|
|
|
2024/10
|
63
|
49
|
47
|
63
|
76
|
90
|
77
|
67
|
59
|
54
|
55
|
71
|
79
|
86
|
79
|
103
|
62
|
38
|
33
|
27
|
45
|
32
|
53
|
60
|
71
|
74
|
72
|
80
|
74
|
75
|
68
|
|
2024/09
|
60
|
51
|
56
|
57
|
28
|
42
|
49
|
50
|
53
|
45
|
44
|
35
|
49
|
41
|
49
|
45
|
46
|
52
|
36
|
42
|
32
|
53
|
63
|
64
|
61
|
76
|
83
|
61
|
39
|
21
|
|
|
2024/08
|
50
|
53
|
44
|
40
|
48
|
41
|
29
|
43
|
30
|
63
|
29
|
35
|
43
|
45
|
45
|
44
|
38
|
39
|
49
|
30
|
38
|
41
|
50
|
51
|
51
|
25
|
31
|
48
|
54
|
56
|
56
|
|
2024/07
|
44
|
54
|
49
|
49
|
48
|
50
|
46
|
42
|
50
|
57
|
52
|
52
|
52
|
57
|
67
|
38
|
30
|
34
|
44
|
29
|
40
|
45
|
43
|
41
|
60
|
49
|
53
|
45
|
40
|
21
|
39
|
|
2024/06
|
69
|
55
|
58
|
60
|
59
|
64
|
62
|
57
|
73
|
66
|
71
|
61
|
80
|
57
|
65
|
57
|
51
|
50
|
49
|
48
|
40
|
61
|
69
|
117
|
101
|
91
|
64
|
59
|
64
|
51
|
|
|
2024/05
|
55
|
52
|
56
|
45
|
69
|
48
|
54
|
67
|
69
|
62
|
127
|
81
|
80
|
72
|
85
|
62
|
72
|
79
|
66
|
71
|
67
|
68
|
62
|
70
|
67
|
66
|
68
|
60
|
64
|
61
|
68
|
|
2024/04
|
86
|
82
|
73
|
66
|
64
|
83
|
86
|
78
|
78
|
71
|
69
|
68
|
64
|
57
|
97
|
73
|
89
|
79
|
54
|
38
|
77
|
99
|
115
|
81
|
83
|
74
|
77
|
68
|
63
|
48
|
|
|
2024/03
|
45
|
65
|
63
|
91
|
158
|
65
|
71
|
46
|
66
|
93
|
88
|
60
|
90
|
87
|
78
|
168
|
82
|
122
|
77
|
67
|
79
|
115
|
90
|
43
|
56
|
70
|
66
|
93
|
84
|
70
|
81
|
|
2024/02
|
149
|
173
|
127
|
87
|
152
|
179
|
163
|
190
|
185
|
227
|
81
|
71
|
71
|
75
|
87
|
56
|
62
|
155
|
227
|
57
|
48
|
51
|
43
|
108
|
107
|
101
|
85
|
104
|
120
|
||
|
2024/01
|
103
|
105
|
64
|
79
|
68
|
57
|
52
|
96
|
108
|
67
|
93
|
109
|
138
|
121
|
95
|
127
|
103
|
141
|
93
|
102
|
28
|
28
|
53
|
60
|
68
|
59
|
68
|
74
|
70
|
115
|
166
|
|
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