Air Quality
Excellent
No health implications.
7
PM2.5
12
PM10
46
O3
0.5
CO
5
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
3 Mar
50
Excellent
Tue
4 Mar
48
Excellent
Wed
5 Mar
52
Good
Thu
6 Mar
60
Good
Fri
7 Mar
63
Good
Sat
8 Mar
74
Good
Sun
9 Mar
35
Excellent
Air quality in the last 12 months (Hengdong)
|
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
|
|
|
2024/10
|
33
|
52
|
54
|
51
|
52
|
77
|
74
|
55
|
57
|
64
|
74
|
81
|
162
|
78
|
51
|
46
|
49
|
44
|
30
|
33
|
46
|
24
|
37
|
44
|
54
|
72
|
66
|
89
|
80
|
55
|
57
|
|
2024/09
|
45
|
45
|
50
|
47
|
44
|
45
|
33
|
31
|
39
|
37
|
42
|
35
|
28
|
41
|
40
|
43
|
48
|
47
|
42
|
44
|
36
|
33
|
38
|
46
|
60
|
63
|
63
|
57
|
47
|
50
|
|
|
2024/08
|
18
|
19
|
29
|
30
|
34
|
30
|
28
|
29
|
35
|
35
|
27
|
30
|
26
|
31
|
36
|
35
|
42
|
48
|
30
|
37
|
47
|
23
|
24
|
27
|
34
|
34
|
40
|
26
|
30
|
35
|
45
|
|
2024/07
|
19
|
17
|
25
|
17
|
15
|
17
|
20
|
17
|
21
|
22
|
23
|
26
|
23
|
19
|
28
|
19
|
16
|
16
|
17
|
21
|
24
|
28
|
28
|
38
|
41
|
33
|
20
|
11
|
16
|
15
|
16
|
|
2024/06
|
22
|
27
|
35
|
20
|
22
|
32
|
39
|
38
|
40
|
25
|
25
|
20
|
19
|
22
|
20
|
26
|
14
|
18
|
18
|
23
|
22
|
21
|
23
|
20
|
9
|
16
|
25
|
25
|
19
|
21
|
|
|
2024/05
|
24
|
40
|
37
|
17
|
38
|
58
|
81
|
82
|
66
|
82
|
35
|
76
|
86
|
65
|
61
|
65
|
57
|
50
|
28
|
26
|
44
|
35
|
37
|
35
|
33
|
27
|
18
|
30
|
28
|
18
|
25
|
|
2024/04
|
35
|
50
|
29
|
30
|
35
|
40
|
48
|
49
|
45
|
40
|
54
|
52
|
47
|
57
|
57
|
44
|
27
|
46
|
30
|
29
|
38
|
49
|
40
|
45
|
37
|
34
|
44
|
53
|
46
|
12
|
|
|
2024/03
|
80
|
63
|
45
|
41
|
50
|
110
|
73
|
66
|
56
|
67
|
60
|
52
|
52
|
51
|
48
|
40
|
50
|
19
|
53
|
67
|
74
|
46
|
28
|
33
|
30
|
27
|
48
|
30
|
39
|
46
|
35
|
|
2024/02
|
40
|
16
|
20
|
40
|
71
|
31
|
60
|
111
|
133
|
192
|
113
|
89
|
49
|
51
|
55
|
41
|
39
|
30
|
52
|
49
|
14
|
25
|
35
|
40
|
62
|
52
|
75
|
44
|
54
|
||
|
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