Air Quality
Excellent
No health implications.
16
PM2.5
40
PM10
45
O3
0.4
CO
16
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
7 Sep
72
Good
Mon
8 Sep
73
Good
Tue
9 Sep
78
Good
Wed
10 Sep
67
Good
Thu
11 Sep
68
Good
Fri
12 Sep
66
Good
Sat
13 Sep
40
Excellent
Air quality in the last 12 months (Yanchi)
|
2025/08
|
41
|
38
|
38
|
42
|
48
|
50
|
41
|
23
|
33
|
35
|
52
|
42
|
46
|
32
|
40
|
30
|
25
|
24
|
25
|
55
|
29
|
39
|
15
|
26
|
23
|
27
|
21
|
26
|
22
|
22
|
28
|
|
2025/07
|
26
|
22
|
50
|
75
|
24
|
30
|
23
|
47
|
24
|
40
|
34
|
41
|
45
|
48
|
57
|
29
|
36
|
34
|
44
|
24
|
26
|
28
|
31
|
17
|
26
|
35
|
26
|
32
|
29
|
24
|
45
|
|
2025/06
|
43
|
46
|
27
|
27
|
25
|
49
|
60
|
41
|
56
|
38
|
50
|
68
|
52
|
55
|
54
|
51
|
46
|
50
|
37
|
30
|
37
|
44
|
40
|
39
|
36
|
24
|
25
|
36
|
40
|
28
|
|
|
2025/05
|
92
|
120
|
41
|
97
|
322
|
158
|
95
|
106
|
63
|
41
|
45
|
62
|
83
|
68
|
57
|
176
|
152
|
66
|
60
|
67
|
82
|
181
|
43
|
55
|
43
|
34
|
49
|
66
|
48
|
83
|
42
|
|
2025/04
|
56
|
58
|
129
|
103
|
59
|
108
|
87
|
114
|
89
|
73
|
296
|
165
|
103
|
44
|
87
|
215
|
114
|
83
|
98
|
104
|
192
|
102
|
65
|
53
|
61
|
67
|
46
|
42
|
92
|
189
|
|
|
2025/03
|
86
|
50
|
42
|
50
|
48
|
42
|
72
|
82
|
242
|
96
|
267
|
114
|
97
|
62
|
47
|
36
|
41
|
31
|
39
|
53
|
61
|
74
|
272
|
422
|
434
|
478
|
168
|
103
|
43
|
51
|
47
|
|
2025/02
|
59
|
26
|
29
|
37
|
41
|
98
|
45
|
32
|
52
|
66
|
84
|
49
|
52
|
62
|
67
|
84
|
70
|
63
|
39
|
52
|
49
|
38
|
32
|
46
|
66
|
65
|
62
|
71
|
|||
|
2025/01
|
60
|
60
|
58
|
86
|
73
|
31
|
37
|
35
|
40
|
48
|
74
|
96
|
227
|
31
|
34
|
44
|
47
|
62
|
63
|
52
|
69
|
71
|
93
|
141
|
79
|
68
|
49
|
60
|
53
|
49
|
45
|
|
2024/12
|
43
|
37
|
58
|
34
|
34
|
29
|
29
|
26
|
52
|
47
|
61
|
63
|
56
|
44
|
59
|
54
|
87
|
42
|
52
|
44
|
31
|
41
|
59
|
83
|
69
|
53
|
33
|
50
|
79
|
70
|
61
|
|
2024/11
|
41
|
40
|
48
|
46
|
60
|
66
|
72
|
50
|
63
|
59
|
56
|
44
|
67
|
40
|
70
|
41
|
40
|
37
|
47
|
64
|
53
|
42
|
71
|
48
|
53
|
73
|
71
|
42
|
33
|
42
|
|
|
2024/10
|
58
|
41
|
42
|
25
|
39
|
43
|
40
|
44
|
51
|
51
|
55
|
43
|
44
|
58
|
49
|
54
|
42
|
30
|
18
|
48
|
26
|
29
|
41
|
45
|
50
|
47
|
48
|
44
|
49
|
31
|
38
|
|
2024/09
|
34
|
29
|
35
|
39
|
37
|
23
|
21
|
34
|
57
|
39
|
28
|
37
|
24
|
19
|
23
|
26
|
29
|
43
|
48
|
40
|
26
|
33
|
43
|
53
|
39
|
46
|
62
|
64
|
45
|
55
|
|
|
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