Air Quality
Excellent
No health implications.
22
PM2.5
45
PM10
57
O3
0.6
CO
5
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Jan
61
Good
Wed
21 Jan
87
Good
Thu
22 Jan
139
Light
Fri
23 Jan
158
Moderate
Sat
24 Jan
170
Moderate
Sun
25 Jan
19
Excellent
Mon
26 Jan
37
Excellent
Si County Air quality rank
Air quality in the last 12 months (Si County)
|
2025/11
|
140
|
101
|
56
|
79
|
66
|
53
|
49
|
27
|
86
|
66
|
46
|
52
|
101
|
158
|
121
|
108
|
36
|
50
|
61
|
71
|
124
|
122
|
99
|
112
|
71
|
81
|
263
|
134
|
94
|
118
|
|
|
2025/10
|
34
|
29
|
20
|
39
|
49
|
55
|
40
|
42
|
34
|
62
|
58
|
40
|
22
|
43
|
32
|
25
|
27
|
25
|
34
|
28
|
29
|
37
|
47
|
54
|
73
|
74
|
69
|
54
|
50
|
47
|
103
|
|
2025/09
|
23
|
23
|
27
|
33
|
36
|
37
|
46
|
31
|
26
|
26
|
26
|
18
|
28
|
29
|
32
|
33
|
18
|
21
|
17
|
26
|
41
|
28
|
42
|
15
|
33
|
29
|
31
|
31
|
42
|
42
|
|
|
2025/08
|
11
|
11
|
25
|
35
|
30
|
36
|
26
|
20
|
24
|
13
|
11
|
16
|
21
|
29
|
30
|
31
|
33
|
34
|
34
|
29
|
33
|
31
|
24
|
19
|
16
|
18
|
30
|
35
|
32
|
24
|
16
|
|
2025/07
|
26
|
22
|
28
|
30
|
37
|
37
|
40
|
23
|
21
|
47
|
49
|
34
|
35
|
30
|
41
|
37
|
32
|
38
|
31
|
23
|
24
|
22
|
25
|
26
|
29
|
25
|
23
|
18
|
24
|
22
|
15
|
|
2025/06
|
31
|
15
|
51
|
65
|
60
|
54
|
33
|
43
|
35
|
52
|
46
|
43
|
58
|
35
|
38
|
57
|
47
|
34
|
13
|
12
|
24
|
38
|
41
|
35
|
33
|
50
|
28
|
16
|
12
|
17
|
|
|
2025/05
|
61
|
68
|
48
|
50
|
45
|
76
|
76
|
50
|
21
|
33
|
49
|
49
|
51
|
64
|
91
|
52
|
73
|
68
|
77
|
62
|
46
|
62
|
65
|
60
|
57
|
67
|
69
|
55
|
60
|
61
|
71
|
|
2025/04
|
62
|
58
|
50
|
73
|
72
|
68
|
65
|
81
|
82
|
83
|
74
|
181
|
89
|
65
|
52
|
63
|
73
|
80
|
78
|
55
|
53
|
76
|
84
|
81
|
63
|
55
|
55
|
58
|
56
|
60
|
|
|
2025/03
|
107
|
52
|
42
|
68
|
93
|
76
|
78
|
96
|
94
|
81
|
117
|
158
|
98
|
54
|
56
|
44
|
54
|
49
|
57
|
59
|
57
|
63
|
76
|
111
|
95
|
76
|
111
|
126
|
86
|
65
|
58
|
|
2025/02
|
88
|
96
|
116
|
87
|
61
|
55
|
62
|
40
|
51
|
65
|
95
|
114
|
61
|
86
|
108
|
99
|
56
|
59
|
66
|
46
|
50
|
71
|
64
|
58
|
76
|
114
|
114
|
121
|
|||
|
2025/01
|
93
|
143
|
87
|
105
|
151
|
84
|
56
|
76
|
42
|
54
|
85
|
96
|
101
|
132
|
65
|
72
|
112
|
116
|
147
|
143
|
172
|
137
|
58
|
46
|
45
|
91
|
39
|
70
|
141
|
96
|
111
|
|
2024/12
|
84
|
115
|
56
|
86
|
126
|
164
|
121
|
44
|
62
|
94
|
86
|
66
|
95
|
74
|
80
|
99
|
141
|
65
|
65
|
88
|
85
|
59
|
75
|
108
|
134
|
130
|
79
|
73
|
68
|
104
|
105
|
|
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