Air Quality
Excellent
No health implications.
8
PM2.5
15
PM10
46
O3
0.4
CO
6
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
3 Mar
51
Good
Tue
4 Mar
52
Good
Wed
5 Mar
57
Good
Thu
6 Mar
62
Good
Fri
7 Mar
63
Good
Sat
8 Mar
78
Good
Sun
9 Mar
26
Excellent
Air quality in the last 12 months (Hengshan)
|
2025/01
|
140
|
126
|
168
|
190
|
129
|
96
|
91
|
80
|
58
|
57
|
66
|
81
|
80
|
76
|
86
|
66
|
76
|
87
|
118
|
111
|
113
|
113
|
192
|
225
|
25
|
33
|
55
|
84
|
253
|
123
|
59
|
|
2024/12
|
67
|
76
|
103
|
135
|
43
|
50
|
60
|
78
|
91
|
68
|
58
|
83
|
101
|
62
|
60
|
72
|
79
|
86
|
98
|
123
|
115
|
103
|
86
|
104
|
131
|
127
|
149
|
114
|
96
|
123
|
135
|
|
2024/11
|
79
|
128
|
98
|
96
|
110
|
77
|
68
|
56
|
70
|
91
|
71
|
85
|
72
|
102
|
105
|
126
|
23
|
13
|
23
|
41
|
56
|
59
|
73
|
92
|
40
|
29
|
42
|
49
|
55
|
58
|
|
|
2024/10
|
32
|
53
|
56
|
51
|
54
|
82
|
74
|
56
|
60
|
69
|
79
|
90
|
176
|
75
|
55
|
53
|
52
|
45
|
30
|
34
|
47
|
23
|
37
|
45
|
57
|
75
|
75
|
104
|
86
|
59
|
61
|
|
2024/09
|
45
|
45
|
52
|
51
|
44
|
47
|
35
|
33
|
42
|
39
|
43
|
33
|
26
|
42
|
42
|
44
|
48
|
47
|
41
|
45
|
35
|
33
|
38
|
48
|
63
|
71
|
68
|
58
|
47
|
51
|
|
|
2024/08
|
17
|
19
|
27
|
31
|
34
|
29
|
29
|
30
|
35
|
35
|
28
|
30
|
27
|
33
|
37
|
34
|
43
|
47
|
30
|
36
|
47
|
25
|
24
|
27
|
34
|
36
|
41
|
26
|
29
|
35
|
44
|
|
2024/07
|
20
|
18
|
25
|
18
|
16
|
17
|
20
|
18
|
22
|
23
|
25
|
28
|
25
|
19
|
28
|
20
|
16
|
16
|
16
|
21
|
24
|
27
|
27
|
39
|
42
|
34
|
21
|
11
|
16
|
15
|
16
|
|
2024/06
|
22
|
28
|
38
|
22
|
24
|
33
|
39
|
38
|
39
|
23
|
25
|
21
|
20
|
22
|
22
|
28
|
14
|
18
|
16
|
24
|
23
|
22
|
23
|
20
|
8
|
16
|
25
|
26
|
20
|
20
|
|
|
2024/05
|
27
|
44
|
40
|
17
|
39
|
56
|
79
|
79
|
66
|
81
|
39
|
81
|
87
|
64
|
60
|
67
|
59
|
51
|
29
|
27
|
47
|
36
|
38
|
37
|
34
|
28
|
20
|
30
|
29
|
18
|
27
|
|
2024/04
|
34
|
48
|
30
|
34
|
42
|
44
|
51
|
51
|
45
|
42
|
56
|
54
|
49
|
56
|
59
|
43
|
28
|
48
|
31
|
29
|
40
|
49
|
40
|
46
|
40
|
37
|
46
|
52
|
46
|
12
|
|
|
2024/03
|
83
|
63
|
46
|
42
|
54
|
107
|
71
|
65
|
57
|
68
|
63
|
54
|
53
|
56
|
52
|
42
|
52
|
19
|
53
|
68
|
75
|
48
|
28
|
36
|
29
|
28
|
50
|
31
|
40
|
48
|
36
|
|
2024/02
|
38
|
16
|
20
|
43
|
70
|
33
|
65
|
112
|
139
|
217
|
124
|
93
|
53
|
53
|
56
|
42
|
40
|
32
|
57
|
42
|
14
|
26
|
35
|
42
|
64
|
55
|
78
|
49
|
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