Air Quality
Excellent
No health implications.
9
PM2.5
13
PM10
28
O3
0.5
CO
8
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Nov
53
Good
Wed
19 Nov
59
Good
Thu
20 Nov
64
Good
Fri
21 Nov
81
Good
Sat
22 Nov
65
Good
Sun
23 Nov
49
Excellent
Mon
24 Nov
36
Excellent
Air quality in the last 12 months (Hengdong)
|
2025/10
|
59
|
53
|
37
|
53
|
45
|
28
|
50
|
56
|
51
|
58
|
67
|
130
|
94
|
59
|
70
|
57
|
48
|
20
|
10
|
11
|
14
|
28
|
38
|
43
|
59
|
76
|
79
|
71
|
79
|
89
|
72
|
|
2025/09
|
27
|
29
|
34
|
37
|
35
|
37
|
43
|
34
|
22
|
26
|
24
|
25
|
26
|
39
|
44
|
42
|
37
|
36
|
31
|
22
|
24
|
24
|
32
|
12
|
15
|
25
|
38
|
50
|
56
|
47
|
|
|
2025/08
|
36
|
42
|
24
|
22
|
21
|
15
|
16
|
21
|
27
|
31
|
39
|
44
|
32
|
23
|
15
|
25
|
26
|
23
|
14
|
18
|
19
|
23
|
28
|
25
|
22
|
25
|
26
|
32
|
27
|
29
|
27
|
|
2025/07
|
18
|
16
|
24
|
30
|
42
|
42
|
48
|
41
|
36
|
24
|
25
|
26
|
31
|
32
|
26
|
25
|
31
|
33
|
30
|
25
|
15
|
14
|
16
|
23
|
25
|
33
|
20
|
22
|
25
|
20
|
26
|
|
2025/06
|
19
|
24
|
39
|
45
|
47
|
38
|
31
|
24
|
36
|
40
|
35
|
22
|
31
|
18
|
14
|
25
|
17
|
14
|
16
|
24
|
24
|
13
|
25
|
20
|
37
|
30
|
17
|
17
|
25
|
21
|
|
|
2025/05
|
59
|
63
|
67
|
62
|
49
|
55
|
74
|
45
|
33
|
53
|
54
|
70
|
61
|
48
|
71
|
23
|
25
|
25
|
29
|
19
|
22
|
27
|
28
|
53
|
55
|
53
|
58
|
15
|
23
|
32
|
17
|
|
2025/04
|
60
|
60
|
66
|
93
|
91
|
86
|
78
|
72
|
79
|
67
|
62
|
240
|
191
|
133
|
87
|
74
|
80
|
65
|
30
|
36
|
39
|
38
|
57
|
31
|
29
|
37
|
34
|
47
|
66
|
56
|
|
|
2025/03
|
35
|
35
|
15
|
30
|
43
|
52
|
55
|
49
|
50
|
46
|
47
|
58
|
64
|
22
|
24
|
48
|
47
|
41
|
44
|
55
|
60
|
59
|
81
|
81
|
77
|
83
|
85
|
61
|
51
|
21
|
51
|
|
2025/02
|
40
|
31
|
55
|
62
|
67
|
77
|
66
|
54
|
47
|
50
|
70
|
77
|
104
|
121
|
58
|
46
|
58
|
43
|
37
|
27
|
87
|
30
|
45
|
83
|
110
|
98
|
60
|
46
|
|||
|
2025/01
|
145
|
124
|
169
|
187
|
142
|
101
|
91
|
84
|
60
|
60
|
66
|
83
|
81
|
75
|
90
|
68
|
79
|
86
|
116
|
106
|
112
|
113
|
176
|
230
|
31
|
32
|
54
|
79
|
224
|
119
|
57
|
|
2024/12
|
66
|
73
|
92
|
130
|
43
|
46
|
58
|
75
|
93
|
70
|
57
|
79
|
99
|
64
|
60
|
72
|
79
|
85
|
100
|
124
|
117
|
107
|
90
|
107
|
136
|
130
|
149
|
119
|
97
|
124
|
133
|
|
2024/11
|
72
|
118
|
92
|
90
|
105
|
72
|
65
|
53
|
63
|
85
|
64
|
78
|
66
|
90
|
88
|
107
|
23
|
13
|
21
|
39
|
54
|
55
|
67
|
84
|
40
|
29
|
42
|
48
|
53
|
58
|
|
|
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