Air Quality
Excellent
No health implications.
10
PM2.5
22
PM10
73
O3
0.5
CO
4
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Aug
64
Good
Fri
22 Aug
49
Excellent
Sat
23 Aug
57
Good
Sun
24 Aug
75
Good
Mon
25 Aug
75
Good
Tue
26 Aug
79
Good
Wed
27 Aug
48
Excellent
Air quality in the last 12 months (Yuan'an)
|
2025/06
|
16
|
25
|
36
|
37
|
47
|
47
|
25
|
20
|
26
|
35
|
31
|
29
|
36
|
34
|
42
|
50
|
36
|
23
|
14
|
14
|
17
|
30
|
24
|
24
|
19
|
11
|
26
|
26
|
21
|
21
|
|
|
2025/05
|
76
|
76
|
63
|
47
|
42
|
243
|
165
|
35
|
45
|
52
|
49
|
63
|
66
|
40
|
52
|
49
|
66
|
115
|
84
|
59
|
50
|
27
|
49
|
59
|
62
|
63
|
58
|
41
|
41
|
32
|
18
|
|
2025/04
|
65
|
67
|
70
|
62
|
75
|
76
|
71
|
65
|
62
|
45
|
43
|
306
|
201
|
118
|
84
|
85
|
78
|
75
|
62
|
58
|
56
|
81
|
88
|
79
|
72
|
67
|
57
|
56
|
55
|
36
|
|
|
2025/03
|
128
|
77
|
25
|
38
|
52
|
51
|
78
|
94
|
72
|
69
|
87
|
90
|
77
|
58
|
45
|
47
|
53
|
52
|
47
|
51
|
51
|
59
|
60
|
61
|
55
|
61
|
130
|
65
|
74
|
72
|
69
|
|
2025/02
|
71
|
67
|
56
|
57
|
56
|
59
|
100
|
71
|
63
|
73
|
97
|
97
|
85
|
82
|
75
|
71
|
84
|
62
|
89
|
104
|
112
|
99
|
86
|
98
|
92
|
106
|
88
|
95
|
|||
|
2025/01
|
146
|
135
|
148
|
169
|
60
|
72
|
72
|
81
|
75
|
75
|
94
|
90
|
124
|
122
|
71
|
75
|
93
|
123
|
118
|
124
|
151
|
202
|
198
|
122
|
30
|
45
|
58
|
82
|
167
|
149
|
136
|
|
2024/12
|
84
|
88
|
89
|
60
|
43
|
48
|
49
|
75
|
89
|
71
|
62
|
98
|
76
|
54
|
64
|
81
|
92
|
88
|
61
|
90
|
89
|
64
|
62
|
71
|
105
|
102
|
156
|
80
|
99
|
119
|
124
|
|
2024/11
|
77
|
58
|
75
|
59
|
63
|
69
|
74
|
78
|
83
|
69
|
71
|
68
|
67
|
67
|
66
|
37
|
16
|
22
|
27
|
27
|
33
|
42
|
67
|
91
|
37
|
34
|
49
|
47
|
48
|
62
|
|
|
2024/10
|
27
|
47
|
50
|
45
|
54
|
37
|
26
|
52
|
58
|
58
|
57
|
56
|
46
|
55
|
52
|
54
|
35
|
22
|
24
|
33
|
33
|
32
|
30
|
50
|
50
|
51
|
48
|
58
|
85
|
75
|
52
|
|
2024/09
|
40
|
45
|
41
|
52
|
49
|
34
|
39
|
45
|
44
|
51
|
36
|
28
|
32
|
46
|
33
|
42
|
31
|
32
|
24
|
29
|
28
|
29
|
42
|
48
|
64
|
68
|
71
|
71
|
63
|
22
|
|
|
2024/08
|
21
|
22
|
22
|
21
|
24
|
22
|
21
|
27
|
34
|
63
|
86
|
51
|
32
|
35
|
38
|
29
|
27
|
24
|
21
|
34
|
29
|
33
|
37
|
33
|
34
|
35
|
17
|
24
|
30
|
38
|
44
|
|
2024/07
|
32
|
25
|
32
|
18
|
25
|
20
|
21
|
24
|
18
|
22
|
33
|
30
|
22
|
20
|
24
|
28
|
25
|
23
|
23
|
21
|
22
|
27
|
27
|
29
|
30
|
34
|
23
|
19
|
15
|
19
|
14
|
|
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