Air Quality
Excellent
No health implications.
11
PM2.5
33
PM10
85
O3
0.4
CO
29
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
31 Mar
61
Good
Tue
1 Apr
67
Good
Wed
2 Apr
75
Good
Thu
3 Apr
81
Good
Fri
4 Apr
96
Good
Sat
5 Apr
78
Good
Sun
6 Apr
43
Excellent
Air quality in the last 12 months (Hengshan)
|
2025/02
|
48
|
25
|
30
|
44
|
37
|
127
|
39
|
25
|
43
|
61
|
72
|
50
|
50
|
58
|
71
|
57
|
61
|
53
|
48
|
42
|
47
|
25
|
30
|
46
|
57
|
50
|
58
|
57
|
|||
|
2025/01
|
48
|
44
|
50
|
70
|
66
|
29
|
26
|
27
|
43
|
42
|
63
|
56
|
113
|
27
|
29
|
42
|
48
|
54
|
56
|
59
|
57
|
62
|
96
|
136
|
102
|
77
|
31
|
54
|
92
|
53
|
44
|
|
2024/12
|
50
|
33
|
54
|
33
|
31
|
28
|
25
|
43
|
48
|
51
|
37
|
59
|
64
|
40
|
49
|
53
|
48
|
38
|
49
|
36
|
38
|
50
|
51
|
72
|
60
|
41
|
31
|
40
|
65
|
67
|
63
|
|
2024/11
|
52
|
30
|
29
|
38
|
49
|
47
|
60
|
55
|
74
|
65
|
67
|
58
|
66
|
49
|
75
|
48
|
43
|
49
|
43
|
59
|
46
|
57
|
75
|
59
|
69
|
97
|
82
|
40
|
32
|
45
|
|
|
2024/10
|
68
|
40
|
35
|
38
|
46
|
43
|
30
|
42
|
47
|
42
|
50
|
53
|
48
|
53
|
57
|
76
|
48
|
28
|
22
|
24
|
24
|
26
|
32
|
45
|
43
|
45
|
53
|
50
|
48
|
41
|
48
|
|
2024/09
|
35
|
33
|
34
|
47
|
34
|
34
|
19
|
35
|
69
|
35
|
29
|
30
|
25
|
23
|
39
|
27
|
38
|
34
|
36
|
25
|
21
|
42
|
49
|
46
|
44
|
50
|
69
|
59
|
27
|
47
|
|
|
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
|
|
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