Air Quality
Excellent
No health implications.
8
PM2.5
24
PM10
84
O3
0.3
CO
6
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Jun
81
Good
Mon
16 Jun
89
Good
Tue
17 Jun
96
Good
Wed
18 Jun
75
Good
Thu
19 Jun
77
Good
Fri
20 Jun
84
Good
Sat
21 Jun
32
Excellent
Air quality in the last 12 months (Hengshan)
|
2025/05
|
70
|
97
|
37
|
82
|
284
|
126
|
97
|
122
|
53
|
40
|
44
|
64
|
75
|
51
|
60
|
206
|
101
|
62
|
66
|
66
|
66
|
189
|
53
|
64
|
47
|
42
|
37
|
53
|
56
|
55
|
31
|
|
2025/04
|
55
|
46
|
113
|
106
|
52
|
83
|
85
|
86
|
86
|
61
|
289
|
164
|
107
|
38
|
59
|
252
|
121
|
71
|
68
|
74
|
240
|
142
|
71
|
39
|
60
|
62
|
43
|
33
|
89
|
160
|
|
|
2025/03
|
68
|
61
|
28
|
40
|
47
|
43
|
59
|
71
|
80
|
62
|
246
|
124
|
74
|
51
|
41
|
28
|
35
|
28
|
27
|
31
|
57
|
72
|
247
|
448
|
430
|
432
|
312
|
103
|
36
|
40
|
47
|
|
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
|
|
|
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