Air Quality
Excellent
No health implications.
18
PM2.5
28
PM10
50
O3
0.6
CO
6
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 Oct
64
Good
Fri
23 Oct
63
Good
Sat
24 Oct
55
Good
Sun
25 Oct
60
Good
Mon
26 Oct
58
Good
Tue
27 Oct
48
Excellent
Wed
28 Oct
20
Excellent
Real-time AQI (Monitoring Station in Shiyan)
铁二处
2818
PM2.5
28
PM10
50
O3
0.6
CO
6
SO2
15
NO2
Air quality in the last 12 months (Shiyan)
|
2026/08
|
25
|
21
|
21
|
18
|
28
|
33
|
34
|
37
|
38
|
30
|
22
|
18
|
24
|
29
|
31
|
31
|
36
|
36
|
36
|
39
|
39
|
32
|
29
|
28
|
30
|
32
|
32
|
43
|
26
|
35
|
39
|
|
2026/07
|
35
|
31
|
30
|
27
|
27
|
29
|
32
|
31
|
31
|
28
|
29
|
27
|
25
|
35
|
33
|
29
|
25
|
30
|
52
|
45
|
43
|
41
|
33
|
33
|
36
|
35
|
25
|
17
|
18
|
24
|
29
|
|
2026/06
|
36
|
46
|
44
|
53
|
50
|
42
|
26
|
20
|
27
|
30
|
30
|
27
|
27
|
32
|
56
|
46
|
39
|
32
|
25
|
25
|
27
|
31
|
29
|
30
|
29
|
30
|
35
|
32
|
34
|
36
|
|
|
2026/05
|
50
|
42
|
37
|
32
|
38
|
43
|
37
|
52
|
36
|
35
|
43
|
65
|
61
|
28
|
38
|
41
|
24
|
21
|
23
|
29
|
33
|
32
|
37
|
26
|
20
|
22
|
26
|
41
|
33
|
33
|
37
|
|
2026/04
|
42
|
52
|
57
|
85
|
67
|
76
|
66
|
49
|
37
|
51
|
62
|
47
|
47
|
46
|
43
|
43
|
55
|
57
|
111
|
105
|
52
|
23
|
27
|
36
|
41
|
52
|
56
|
50
|
43
|
39
|
|
|
2026/03
|
23
|
30
|
37
|
52
|
71
|
71
|
58
|
54
|
60
|
93
|
91
|
175
|
114
|
91
|
20
|
31
|
46
|
42
|
73
|
72
|
68
|
68
|
87
|
55
|
39
|
55
|
48
|
46
|
52
|
38
|
38
|
|
2026/02
|
76
|
66
|
73
|
87
|
67
|
124
|
93
|
87
|
75
|
88
|
93
|
83
|
66
|
59
|
71
|
29
|
54
|
47
|
51
|
41
|
48
|
90
|
148
|
79
|
41
|
28
|
45
|
52
|
|||
|
2026/01
|
53
|
75
|
108
|
65
|
48
|
39
|
42
|
45
|
45
|
53
|
65
|
61
|
66
|
85
|
65
|
60
|
138
|
110
|
60
|
60
|
80
|
86
|
78
|
105
|
94
|
99
|
123
|
118
|
87
|
78
|
71
|
|
2025/12
|
88
|
112
|
87
|
68
|
81
|
76
|
58
|
59
|
86
|
100
|
110
|
98
|
52
|
47
|
54
|
60
|
91
|
122
|
92
|
54
|
48
|
105
|
51
|
72
|
56
|
60
|
64
|
65
|
58
|
89
|
124
|
|
2025/11
|
34
|
42
|
84
|
88
|
125
|
87
|
26
|
28
|
51
|
69
|
62
|
61
|
55
|
70
|
59
|
50
|
20
|
24
|
27
|
31
|
36
|
42
|
38
|
51
|
44
|
62
|
110
|
65
|
58
|
58
|
|
|
2025/10
|
21
|
13
|
18
|
22
|
16
|
13
|
17
|
20
|
18
|
17
|
22
|
25
|
21
|
26
|
31
|
34
|
20
|
27
|
47
|
34
|
33
|
46
|
59
|
74
|
52
|
36
|
38
|
48
|
79
|
54
|
35
|
|
2025/09
|
24
|
29
|
43
|
27
|
22
|
34
|
29
|
23
|
24
|
34
|
16
|
18
|
21
|
29
|
31
|
32
|
18
|
18
|
19
|
21
|
28
|
25
|
15
|
18
|
27
|
24
|
21
|
20
|
17
|
17
|
|
|
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