Air Quality
Excellent
No health implications.
25
PM2.5
49
PM10
66
O3
0.4
CO
3
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Mar
66
Good
Sun
16 Mar
68
Good
Mon
17 Mar
79
Good
Tue
18 Mar
75
Good
Wed
19 Mar
85
Good
Thu
20 Mar
44
Excellent
Fri
21 Mar
30
Excellent
Air quality in the last 12 months (Sanyuan)
|
2025/01
|
119
|
102
|
83
|
125
|
114
|
71
|
55
|
69
|
60
|
77
|
72
|
78
|
115
|
98
|
38
|
74
|
96
|
111
|
120
|
162
|
152
|
205
|
208
|
133
|
55
|
84
|
61
|
116
|
276
|
216
|
254
|
|
2024/12
|
82
|
79
|
68
|
96
|
73
|
80
|
74
|
50
|
89
|
127
|
163
|
139
|
54
|
61
|
71
|
110
|
125
|
89
|
88
|
115
|
55
|
81
|
100
|
112
|
137
|
111
|
60
|
54
|
79
|
76
|
83
|
|
2024/11
|
98
|
77
|
79
|
55
|
72
|
101
|
129
|
144
|
110
|
173
|
180
|
181
|
96
|
66
|
48
|
55
|
26
|
29
|
53
|
53
|
59
|
97
|
132
|
118
|
34
|
53
|
75
|
73
|
61
|
63
|
|
|
2024/10
|
49
|
60
|
58
|
57
|
76
|
133
|
139
|
142
|
103
|
65
|
80
|
111
|
64
|
93
|
103
|
99
|
70
|
44
|
34
|
33
|
40
|
36
|
56
|
98
|
86
|
68
|
45
|
69
|
117
|
128
|
91
|
|
2024/09
|
67
|
51
|
40
|
47
|
37
|
46
|
42
|
40
|
49
|
62
|
51
|
37
|
39
|
42
|
55
|
40
|
49
|
46
|
31
|
33
|
33
|
49
|
63
|
89
|
138
|
110
|
96
|
67
|
38
|
35
|
|
|
2024/08
|
46
|
47
|
38
|
34
|
38
|
39
|
32
|
32
|
53
|
121
|
60
|
47
|
45
|
48
|
45
|
43
|
55
|
41
|
45
|
46
|
35
|
45
|
56
|
57
|
49
|
27
|
29
|
38
|
37
|
40
|
39
|
|
2024/07
|
26
|
30
|
39
|
40
|
43
|
48
|
33
|
16
|
25
|
50
|
39
|
50
|
60
|
57
|
41
|
19
|
16
|
20
|
32
|
26
|
41
|
31
|
39
|
71
|
84
|
72
|
44
|
56
|
43
|
26
|
41
|
|
2024/06
|
78
|
34
|
56
|
51
|
49
|
69
|
46
|
48
|
48
|
52
|
53
|
53
|
57
|
54
|
63
|
47
|
39
|
47
|
45
|
47
|
23
|
52
|
61
|
77
|
101
|
74
|
63
|
63
|
39
|
49
|
|
|
2024/05
|
51
|
53
|
39
|
41
|
46
|
45
|
56
|
63
|
52
|
53
|
90
|
71
|
74
|
60
|
83
|
63
|
72
|
70
|
56
|
54
|
58
|
60
|
55
|
54
|
59
|
46
|
58
|
58
|
36
|
60
|
83
|
|
2024/04
|
70
|
70
|
63
|
74
|
69
|
80
|
75
|
81
|
65
|
53
|
61
|
59
|
50
|
44
|
90
|
87
|
75
|
69
|
112
|
104
|
116
|
91
|
262
|
129
|
80
|
64
|
71
|
69
|
44
|
28
|
|
|
2024/03
|
52
|
58
|
80
|
90
|
123
|
73
|
85
|
67
|
87
|
88
|
70
|
64
|
88
|
103
|
72
|
272
|
194
|
84
|
139
|
109
|
85
|
115
|
106
|
51
|
40
|
67
|
85
|
71
|
62
|
68
|
83
|
|
2024/02
|
150
|
93
|
114
|
99
|
105
|
139
|
130
|
142
|
147
|
198
|
84
|
117
|
131
|
120
|
56
|
66
|
85
|
327
|
400
|
50
|
63
|
74
|
70
|
99
|
143
|
111
|
101
|
127
|
79
|
||
|
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