Air Quality
Excellent
No health implications.
7
PM2.5
34
PM10
121
O3
0.4
CO
4
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
28 Jun
119
Light
Mon
29 Jun
117
Light
Tue
30 Jun
123
Light
Wed
1 Jul
103
Light
Thu
2 Jul
100
Good
Fri
3 Jul
16
Excellent
Sat
4 Jul
43
Excellent
Air quality in the last 12 months (Hongdong)
|
2026/05
|
52
|
41
|
48
|
58
|
53
|
59
|
53
|
52
|
56
|
64
|
82
|
75
|
80
|
64
|
57
|
41
|
32
|
49
|
58
|
47
|
49
|
42
|
55
|
58
|
40
|
40
|
62
|
54
|
61
|
65
|
61
|
|
2026/04
|
50
|
60
|
121
|
72
|
100
|
72
|
76
|
65
|
72
|
69
|
60
|
62
|
60
|
57
|
64
|
59
|
70
|
64
|
178
|
121
|
62
|
59
|
59
|
59
|
66
|
72
|
118
|
76
|
59
|
60
|
|
|
2026/03
|
57
|
70
|
101
|
74
|
58
|
43
|
48
|
80
|
102
|
113
|
74
|
73
|
133
|
94
|
68
|
77
|
83
|
73
|
69
|
86
|
79
|
109
|
77
|
80
|
86
|
87
|
89
|
72
|
55
|
67
|
58
|
|
2026/02
|
123
|
66
|
72
|
101
|
109
|
93
|
45
|
46
|
69
|
88
|
81
|
91
|
103
|
95
|
65
|
78
|
176
|
89
|
61
|
73
|
130
|
340
|
100
|
87
|
67
|
83
|
40
|
35
|
|||
|
2026/01
|
121
|
123
|
159
|
237
|
155
|
37
|
62
|
65
|
87
|
86
|
53
|
87
|
105
|
111
|
119
|
90
|
93
|
103
|
57
|
49
|
54
|
65
|
95
|
97
|
186
|
162
|
130
|
137
|
133
|
176
|
157
|
|
2025/12
|
101
|
69
|
44
|
72
|
92
|
131
|
114
|
73
|
87
|
133
|
105
|
59
|
92
|
122
|
114
|
138
|
105
|
84
|
115
|
54
|
60
|
102
|
133
|
92
|
45
|
58
|
80
|
113
|
106
|
69
|
80
|
|
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
|
|
|
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