Air Quality
Excellent
No health implications.
5
PM2.5
13
PM10
27
O3
0.6
CO
4
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 Dec
86
Good
Sun
14 Dec
78
Good
Mon
15 Dec
79
Good
Tue
16 Dec
84
Good
Wed
17 Dec
92
Good
Thu
18 Dec
42
Excellent
Fri
19 Dec
49
Excellent
Hengdong Air quality rank
Air quality in the last 12 months (Hengdong)
|
2025/11
|
58
|
49
|
33
|
40
|
39
|
31
|
59
|
12
|
11
|
18
|
44
|
57
|
47
|
51
|
56
|
65
|
65
|
28
|
33
|
42
|
50
|
56
|
64
|
57
|
59
|
67
|
81
|
84
|
74
|
67
|
|
|
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
|
|
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