Air Quality
Excellent
No health implications.
17
PM2.5
44
PM10
69
O3
0.7
CO
5
SO2
27
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 May
123
Light
Thu
15 May
92
Good
Fri
16 May
82
Good
Sat
17 May
118
Light
Sun
18 May
107
Light
Mon
19 May
45
Excellent
Tue
20 May
20
Excellent
Air quality in the last 12 months (Huishan)
|
2025/02
|
22
|
67
|
70
|
67
|
56
|
36
|
56
|
31
|
43
|
56
|
41
|
86
|
67
|
46
|
86
|
100
|
66
|
50
|
53
|
36
|
32
|
55
|
68
|
79
|
97
|
95
|
97
|
97
|
|||
|
2025/01
|
84
|
59
|
65
|
58
|
91
|
91
|
71
|
69
|
31
|
53
|
67
|
71
|
81
|
110
|
54
|
65
|
71
|
76
|
97
|
162
|
135
|
72
|
41
|
41
|
30
|
42
|
56
|
51
|
83
|
63
|
49
|
|
2024/12
|
64
|
74
|
65
|
39
|
57
|
112
|
136
|
38
|
58
|
43
|
59
|
63
|
73
|
67
|
70
|
69
|
75
|
72
|
38
|
61
|
82
|
51
|
51
|
66
|
83
|
117
|
62
|
68
|
66
|
81
|
87
|
|
2024/11
|
20
|
53
|
84
|
83
|
47
|
39
|
35
|
39
|
36
|
48
|
53
|
50
|
55
|
46
|
83
|
52
|
30
|
28
|
31
|
32
|
59
|
74
|
36
|
33
|
28
|
43
|
78
|
70
|
55
|
65
|
|
|
2024/10
|
19
|
30
|
22
|
25
|
23
|
12
|
13
|
39
|
50
|
73
|
80
|
68
|
38
|
37
|
65
|
52
|
39
|
39
|
29
|
38
|
27
|
37
|
46
|
39
|
45
|
31
|
21
|
59
|
44
|
40
|
30
|
|
2024/09
|
30
|
34
|
23
|
23
|
20
|
27
|
49
|
34
|
12
|
30
|
13
|
27
|
24
|
29
|
26
|
17
|
22
|
30
|
22
|
14
|
26
|
32
|
34
|
43
|
53
|
33
|
35
|
40
|
43
|
42
|
|
|
2024/08
|
17
|
20
|
38
|
28
|
29
|
28
|
41
|
26
|
36
|
39
|
36
|
33
|
33
|
25
|
19
|
31
|
26
|
18
|
17
|
17
|
24
|
32
|
40
|
26
|
25
|
23
|
26
|
26
|
18
|
25
|
31
|
|
2024/07
|
15
|
21
|
16
|
26
|
24
|
24
|
19
|
23
|
23
|
21
|
23
|
23
|
14
|
20
|
43
|
48
|
29
|
16
|
18
|
22
|
28
|
25
|
25
|
16
|
14
|
15
|
13
|
12
|
15
|
15
|
18
|
|
2024/06
|
42
|
30
|
41
|
49
|
40
|
18
|
28
|
35
|
36
|
21
|
23
|
34
|
52
|
50
|
42
|
37
|
21
|
23
|
15
|
27
|
36
|
15
|
18
|
37
|
33
|
25
|
18
|
15
|
17
|
17
|
|
|
2024/05
|
39
|
39
|
31
|
38
|
34
|
50
|
65
|
41
|
34
|
43
|
45
|
76
|
78
|
59
|
49
|
32
|
44
|
46
|
34
|
33
|
31
|
37
|
40
|
32
|
29
|
33
|
24
|
28
|
33
|
36
|
58
|
|
2024/04
|
76
|
32
|
32
|
55
|
51
|
50
|
42
|
35
|
68
|
58
|
56
|
35
|
31
|
34
|
58
|
65
|
41
|
78
|
84
|
37
|
40
|
37
|
44
|
61
|
50
|
41
|
28
|
28
|
34
|
43
|
|
|
2024/03
|
49
|
58
|
64
|
46
|
27
|
61
|
62
|
89
|
79
|
64
|
58
|
84
|
55
|
59
|
64
|
49
|
89
|
64
|
82
|
97
|
71
|
63
|
80
|
64
|
51
|
36
|
55
|
52
|
58
|
64
|
91
|
|
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