Air Quality
Excellent
No health implications.
13
PM2.5
24
PM10
26
O3
0.8
CO
1
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Jan
68
Good
Sat
31 Jan
59
Good
Sun
1 Feb
59
Good
Mon
2 Feb
65
Good
Tue
3 Feb
69
Good
Wed
4 Feb
68
Good
Thu
5 Feb
29
Excellent
Air quality in the last 12 months (Hengshan)
|
2025/12
|
91
|
113
|
84
|
62
|
76
|
91
|
105
|
128
|
131
|
145
|
135
|
151
|
29
|
56
|
56
|
63
|
82
|
112
|
101
|
95
|
99
|
90
|
52
|
57
|
63
|
62
|
75
|
80
|
91
|
141
|
159
|
|
2025/11
|
60
|
50
|
34
|
44
|
45
|
32
|
65
|
11
|
11
|
19
|
46
|
56
|
46
|
52
|
57
|
69
|
65
|
27
|
32
|
44
|
51
|
57
|
67
|
59
|
61
|
69
|
84
|
86
|
75
|
70
|
|
|
2025/10
|
59
|
54
|
38
|
51
|
48
|
31
|
53
|
59
|
51
|
59
|
72
|
143
|
92
|
59
|
71
|
55
|
45
|
16
|
9
|
10
|
13
|
28
|
38
|
42
|
63
|
76
|
78
|
71
|
79
|
90
|
73
|
|
2025/09
|
30
|
30
|
33
|
38
|
36
|
37
|
45
|
35
|
24
|
27
|
25
|
25
|
27
|
38
|
43
|
41
|
36
|
35
|
28
|
22
|
25
|
23
|
30
|
12
|
15
|
24
|
38
|
49
|
55
|
44
|
|
|
2025/08
|
38
|
45
|
25
|
22
|
22
|
15
|
16
|
21
|
27
|
32
|
39
|
44
|
33
|
23
|
14
|
25
|
28
|
24
|
14
|
17
|
18
|
22
|
28
|
25
|
22
|
25
|
26
|
32
|
28
|
31
|
29
|
|
2025/07
|
16
|
15
|
23
|
29
|
42
|
42
|
49
|
43
|
38
|
24
|
24
|
25
|
29
|
31
|
26
|
25
|
29
|
33
|
30
|
24
|
15
|
13
|
16
|
22
|
25
|
32
|
19
|
23
|
25
|
20
|
26
|
|
2025/06
|
18
|
24
|
40
|
47
|
49
|
40
|
32
|
23
|
35
|
40
|
34
|
21
|
31
|
18
|
15
|
25
|
16
|
14
|
15
|
21
|
23
|
13
|
24
|
19
|
36
|
29
|
16
|
17
|
22
|
20
|
|
|
2025/05
|
61
|
63
|
67
|
64
|
53
|
57
|
77
|
46
|
34
|
53
|
52
|
67
|
61
|
51
|
75
|
24
|
26
|
26
|
31
|
19
|
22
|
28
|
29
|
53
|
56
|
52
|
59
|
16
|
24
|
31
|
19
|
|
2025/04
|
60
|
60
|
66
|
95
|
94
|
87
|
78
|
75
|
84
|
74
|
64
|
246
|
181
|
134
|
88
|
75
|
80
|
67
|
32
|
42
|
39
|
41
|
59
|
33
|
31
|
39
|
38
|
50
|
68
|
56
|
|
|
2025/03
|
34
|
36
|
13
|
31
|
43
|
55
|
54
|
50
|
53
|
49
|
49
|
64
|
68
|
22
|
26
|
48
|
46
|
42
|
45
|
55
|
61
|
60
|
84
|
81
|
77
|
86
|
89
|
63
|
54
|
21
|
51
|
|
2025/02
|
43
|
33
|
58
|
63
|
68
|
77
|
67
|
51
|
46
|
52
|
71
|
79
|
106
|
120
|
58
|
49
|
58
|
44
|
40
|
32
|
96
|
31
|
49
|
83
|
110
|
97
|
64
|
50
|
|||
|
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
|
|
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