Air Quality
Excellent
No health implications.
4
PM2.5
19
PM10
35
O3
0.8
CO
7
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Apr
52
Good
Fri
17 Apr
76
Good
Sat
18 Apr
85
Good
Sun
19 Apr
85
Good
Mon
20 Apr
58
Good
Tue
21 Apr
50
Excellent
Wed
22 Apr
27
Excellent
Air quality in the last 12 months (Hengshan)
|
2026/03
|
11
|
24
|
48
|
66
|
52
|
60
|
72
|
38
|
43
|
69
|
48
|
57
|
59
|
58
|
108
|
26
|
38
|
22
|
37
|
29
|
38
|
34
|
27
|
33
|
78
|
32
|
43
|
45
|
44
|
26
|
32
|
|
2026/02
|
49
|
57
|
61
|
81
|
104
|
85
|
69
|
58
|
59
|
60
|
60
|
69
|
68
|
61
|
60
|
21
|
97
|
73
|
57
|
46
|
52
|
63
|
56
|
36
|
50
|
27
|
23
|
24
|
|||
|
2026/01
|
34
|
55
|
64
|
62
|
61
|
82
|
70
|
62
|
68
|
89
|
101
|
94
|
111
|
87
|
101
|
121
|
139
|
154
|
32
|
23
|
55
|
65
|
71
|
51
|
72
|
79
|
143
|
87
|
60
|
32
|
45
|
|
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
|
|
|
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