Air Quality
Excellent
No health implications.
15
PM2.5
27
PM10
108
O3
0.4
CO
4
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Jun
72
Good
Tue
1 Jul
88
Good
Wed
2 Jul
90
Good
Thu
3 Jul
102
Light
Fri
4 Jul
115
Light
Sat
5 Jul
98
Good
Sun
6 Jul
39
Excellent
Air quality in the last 12 months (Yanshi)
|
2025/05
|
70
|
109
|
72
|
60
|
133
|
169
|
153
|
92
|
90
|
45
|
45
|
56
|
69
|
67
|
55
|
64
|
130
|
88
|
101
|
79
|
88
|
71
|
91
|
68
|
56
|
54
|
73
|
72
|
81
|
62
|
52
|
|
2025/04
|
53
|
52
|
62
|
80
|
60
|
76
|
79
|
84
|
92
|
87
|
87
|
219
|
96
|
49
|
52
|
99
|
115
|
98
|
77
|
84
|
57
|
117
|
125
|
82
|
75
|
80
|
71
|
59
|
53
|
114
|
|
|
2025/03
|
110
|
52
|
44
|
62
|
89
|
109
|
87
|
88
|
109
|
125
|
105
|
122
|
155
|
77
|
53
|
47
|
37
|
51
|
48
|
37
|
42
|
61
|
83
|
244
|
134
|
158
|
114
|
134
|
65
|
50
|
64
|
|
2025/02
|
103
|
157
|
87
|
37
|
40
|
53
|
63
|
41
|
79
|
110
|
150
|
80
|
59
|
64
|
67
|
70
|
86
|
99
|
66
|
84
|
131
|
138
|
118
|
106
|
83
|
81
|
119
|
151
|
|||
|
2025/01
|
111
|
159
|
133
|
126
|
80
|
69
|
58
|
51
|
73
|
71
|
66
|
63
|
91
|
83
|
40
|
48
|
77
|
86
|
78
|
118
|
162
|
189
|
84
|
115
|
118
|
63
|
34
|
60
|
167
|
180
|
122
|
|
2024/12
|
53
|
61
|
67
|
114
|
43
|
48
|
59
|
72
|
122
|
125
|
116
|
123
|
65
|
52
|
49
|
62
|
89
|
82
|
79
|
82
|
59
|
79
|
104
|
132
|
100
|
102
|
78
|
42
|
59
|
69
|
81
|
|
2024/11
|
66
|
67
|
65
|
57
|
58
|
89
|
112
|
87
|
78
|
122
|
168
|
208
|
172
|
74
|
94
|
71
|
42
|
56
|
48
|
54
|
56
|
109
|
127
|
87
|
51
|
45
|
67
|
50
|
39
|
45
|
|
|
2024/10
|
52
|
52
|
61
|
67
|
77
|
90
|
108
|
144
|
134
|
63
|
93
|
134
|
134
|
118
|
124
|
130
|
84
|
19
|
31
|
28
|
48
|
31
|
42
|
61
|
89
|
80
|
57
|
154
|
143
|
152
|
207
|
|
2024/09
|
47
|
27
|
39
|
56
|
34
|
29
|
54
|
61
|
60
|
35
|
28
|
32
|
41
|
56
|
34
|
51
|
58
|
46
|
29
|
36
|
17
|
31
|
54
|
74
|
86
|
112
|
114
|
75
|
50
|
16
|
|
|
2024/08
|
33
|
40
|
32
|
29
|
38
|
29
|
31
|
34
|
30
|
113
|
70
|
30
|
43
|
40
|
47
|
53
|
43
|
37
|
32
|
30
|
25
|
38
|
55
|
53
|
44
|
32
|
21
|
32
|
47
|
51
|
49
|
|
2024/07
|
35
|
26
|
55
|
30
|
29
|
25
|
49
|
23
|
43
|
69
|
55
|
50
|
51
|
71
|
55
|
41
|
29
|
20
|
38
|
33
|
48
|
38
|
39
|
42
|
47
|
30
|
37
|
33
|
18
|
18
|
24
|
|
2024/06
|
63
|
54
|
52
|
65
|
49
|
70
|
66
|
58
|
48
|
54
|
55
|
70
|
63
|
56
|
53
|
47
|
32
|
46
|
54
|
53
|
34
|
42
|
57
|
101
|
103
|
80
|
57
|
58
|
41
|
52
|
|
|
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