Air Quality
Excellent
No health implications.
5
PM2.5
17
PM10
65
O3
0.3
CO
9
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Sep
36
Excellent
Sun
22 Sep
49
Excellent
Mon
23 Sep
54
Good
Tue
24 Sep
57
Good
Wed
25 Sep
48
Excellent
Thu
26 Sep
44
Excellent
Fri
27 Sep
44
Excellent
Air quality in the last 12 months (Hengshan)
|
2024/08
|
36
|
34
|
26
|
28
|
32
|
27
|
14
|
22
|
61
|
72
|
18
|
24
|
37
|
36
|
37
|
27
|
34
|
27
|
36
|
30
|
36
|
45
|
40
|
39
|
36
|
16
|
22
|
28
|
30
|
33
|
39
|
|
2024/07
|
40
|
35
|
43
|
24
|
40
|
43
|
36
|
43
|
34
|
40
|
47
|
46
|
56
|
55
|
35
|
24
|
29
|
36
|
28
|
28
|
152
|
95
|
57
|
78
|
48
|
46
|
43
|
47
|
38
|
27
|
30
|
|
2024/06
|
46
|
31
|
27
|
30
|
31
|
31
|
22
|
38
|
42
|
36
|
48
|
51
|
63
|
42
|
41
|
43
|
31
|
35
|
42
|
46
|
41
|
88
|
93
|
85
|
68
|
73
|
52
|
58
|
30
|
30
|
|
|
2024/05
|
31
|
35
|
41
|
24
|
42
|
44
|
44
|
54
|
55
|
117
|
118
|
47
|
49
|
79
|
62
|
69
|
106
|
83
|
73
|
63
|
59
|
57
|
48
|
51
|
42
|
37
|
33
|
42
|
49
|
54
|
37
|
|
2024/04
|
67
|
60
|
37
|
54
|
56
|
52
|
57
|
55
|
54
|
44
|
38
|
41
|
64
|
100
|
87
|
55
|
63
|
62
|
60
|
43
|
58
|
174
|
75
|
73
|
67
|
67
|
59
|
60
|
38
|
29
|
|
|
2024/03
|
45
|
54
|
57
|
62
|
59
|
51
|
77
|
47
|
64
|
69
|
65
|
46
|
58
|
63
|
94
|
192
|
66
|
195
|
63
|
59
|
84
|
157
|
96
|
46
|
59
|
45
|
106
|
196
|
79
|
51
|
60
|
|
2024/02
|
110
|
109
|
122
|
103
|
96
|
55
|
56
|
73
|
88
|
94
|
59
|
54
|
56
|
232
|
55
|
52
|
60
|
499
|
182
|
76
|
49
|
45
|
65
|
61
|
81
|
98
|
88
|
87
|
48
|
||
|
2024/01
|
62
|
52
|
48
|
50
|
48
|
28
|
46
|
64
|
53
|
53
|
63
|
61
|
75
|
56
|
57
|
85
|
91
|
73
|
99
|
46
|
20
|
27
|
34
|
23
|
43
|
57
|
53
|
66
|
62
|
76
|
79
|
|
2023/12
|
40
|
56
|
64
|
62
|
144
|
155
|
122
|
71
|
54
|
74
|
52
|
60
|
65
|
57
|
45
|
44
|
41
|
64
|
60
|
36
|
33
|
54
|
43
|
49
|
56
|
73
|
94
|
103
|
142
|
71
|
50
|
|
2023/11
|
59
|
87
|
58
|
55
|
52
|
44
|
46
|
58
|
51
|
43
|
41
|
31
|
44
|
56
|
132
|
79
|
46
|
52
|
60
|
59
|
65
|
88
|
45
|
46
|
76
|
92
|
65
|
53
|
23
|
27
|
|
|
2023/10
|
43
|
31
|
37
|
46
|
43
|
24
|
27
|
30
|
38
|
44
|
43
|
44
|
37
|
35
|
43
|
47
|
43
|
49
|
43
|
38
|
39
|
40
|
54
|
57
|
49
|
48
|
55
|
51
|
54
|
53
|
57
|
|
2023/09
|
40
|
35
|
41
|
50
|
50
|
50
|
64
|
52
|
31
|
44
|
50
|
47
|
45
|
42
|
36
|
30
|
31
|
46
|
50
|
44
|
31
|
33
|
35
|
27
|
34
|
44
|
49
|
43
|
52
|
34
|
|
|
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