Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Sep
Fri
19 Sep
Sat
20 Sep
Sun
21 Sep
Mon
22 Sep
Tue
23 Sep
Wed
24 Sep
Shiyan Air quality rank
Real-time AQI (Monitoring Station in Shiyan)
武当山
223
PM2.5
6
PM10
70
O3
0.5
CO
11
SO2
5
NO2
滨河新村
267
PM2.5
21
PM10
81
O3
0.5
CO
8
SO2
4
NO2
刘家沟
279
PM2.5
17
PM10
84
O3
0.5
CO
6
SO2
4
NO2
铁二处
2615
PM2.5
17
PM10
82
O3
0.5
CO
10
SO2
6
NO2
Air quality in the last 12 months (Shiyan)
|
2025/08
|
41
|
38
|
38
|
50
|
50
|
38
|
30
|
29
|
22
|
19
|
24
|
26
|
20
|
32
|
31
|
28
|
29
|
30
|
32
|
36
|
31
|
27
|
35
|
24
|
31
|
39
|
39
|
37
|
22
|
22
|
20
|
|
2025/07
|
18
|
28
|
27
|
25
|
21
|
27
|
23
|
34
|
31
|
25
|
43
|
52
|
37
|
30
|
28
|
32
|
33
|
33
|
37
|
35
|
30
|
31
|
19
|
21
|
27
|
33
|
32
|
28
|
30
|
30
|
36
|
|
2025/06
|
32
|
30
|
35
|
35
|
35
|
31
|
32
|
27
|
34
|
40
|
43
|
42
|
40
|
34
|
39
|
48
|
48
|
34
|
13
|
27
|
27
|
35
|
31
|
36
|
31
|
22
|
27
|
30
|
27
|
26
|
|
|
2025/05
|
81
|
63
|
65
|
51
|
48
|
272
|
155
|
58
|
60
|
42
|
35
|
44
|
53
|
40
|
52
|
56
|
80
|
116
|
62
|
65
|
71
|
61
|
58
|
66
|
68
|
56
|
55
|
49
|
55
|
45
|
31
|
|
2025/04
|
59
|
61
|
52
|
59
|
73
|
69
|
60
|
55
|
60
|
51
|
55
|
250
|
113
|
69
|
40
|
52
|
66
|
74
|
56
|
53
|
52
|
123
|
88
|
69
|
59
|
65
|
52
|
35
|
39
|
44
|
|
|
2025/03
|
86
|
32
|
23
|
34
|
45
|
58
|
80
|
74
|
71
|
65
|
67
|
68
|
59
|
54
|
40
|
37
|
37
|
34
|
34
|
39
|
49
|
52
|
54
|
54
|
48
|
48
|
112
|
64
|
60
|
63
|
58
|
|
2025/02
|
103
|
72
|
46
|
41
|
35
|
33
|
89
|
47
|
45
|
62
|
91
|
71
|
58
|
61
|
47
|
49
|
64
|
77
|
93
|
104
|
102
|
107
|
91
|
127
|
85
|
68
|
99
|
83
|
|||
|
2025/01
|
65
|
113
|
161
|
140
|
56
|
58
|
54
|
38
|
53
|
61
|
55
|
60
|
67
|
68
|
57
|
49
|
60
|
76
|
58
|
59
|
99
|
183
|
170
|
54
|
27
|
46
|
53
|
57
|
103
|
107
|
120
|
|
2024/12
|
42
|
46
|
70
|
62
|
38
|
35
|
42
|
81
|
76
|
72
|
72
|
105
|
48
|
36
|
36
|
45
|
58
|
73
|
49
|
69
|
65
|
51
|
43
|
60
|
68
|
69
|
100
|
48
|
54
|
50
|
48
|
|
2024/11
|
39
|
32
|
31
|
38
|
49
|
58
|
66
|
70
|
69
|
49
|
58
|
57
|
62
|
30
|
34
|
19
|
16
|
25
|
30
|
21
|
23
|
33
|
72
|
61
|
21
|
29
|
37
|
38
|
34
|
36
|
|
|
2024/10
|
28
|
34
|
37
|
35
|
43
|
40
|
34
|
48
|
46
|
38
|
47
|
44
|
50
|
38
|
41
|
71
|
49
|
23
|
26
|
26
|
20
|
20
|
26
|
33
|
44
|
46
|
33
|
39
|
54
|
64
|
52
|
|
2024/09
|
34
|
41
|
41
|
45
|
30
|
27
|
38
|
50
|
45
|
44
|
34
|
32
|
31
|
35
|
34
|
34
|
23
|
21
|
26
|
23
|
18
|
22
|
29
|
36
|
35
|
49
|
58
|
61
|
56
|
12
|
|
|
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
*: primary pollution