Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
1 Jul
Thu
2 Jul
Fri
3 Jul
Sat
4 Jul
Sun
5 Jul
Mon
6 Jul
Tue
7 Jul
Real-time AQI (Monitoring Station in Yan'an)
延大医附院
149
PM2.5
14
PM10
17
O3
0.3
CO
2
SO2
6
NO2
百米大道
1810
PM2.5
18
PM10
16
O3
0.5
CO
3
SO2
9
NO2
志丹路
226
PM2.5
22
PM10
20
O3
0.5
CO
2
SO2
11
NO2
Air quality in the last 12 months (Yan'an)
|
2026/05
|
48
|
28
|
42
|
41
|
43
|
59
|
46
|
40
|
52
|
68
|
62
|
63
|
53
|
39
|
84
|
48
|
26
|
36
|
38
|
45
|
47
|
34
|
41
|
43
|
28
|
42
|
62
|
43
|
38
|
39
|
64
|
|
2026/04
|
51
|
57
|
129
|
67
|
79
|
64
|
64
|
61
|
64
|
57
|
52
|
47
|
39
|
62
|
51
|
36
|
43
|
55
|
200
|
108
|
56
|
43
|
49
|
62
|
62
|
61
|
175
|
61
|
44
|
50
|
|
|
2026/03
|
25
|
22
|
39
|
65
|
65
|
33
|
42
|
59
|
50
|
64
|
46
|
77
|
244
|
74
|
54
|
55
|
60
|
90
|
69
|
76
|
78
|
95
|
69
|
63
|
62
|
65
|
57
|
57
|
52
|
53
|
41
|
|
2026/02
|
61
|
43
|
59
|
67
|
67
|
64
|
30
|
38
|
75
|
105
|
86
|
77
|
62
|
66
|
48
|
55
|
97
|
45
|
57
|
72
|
186
|
468
|
171
|
81
|
83
|
99
|
67
|
29
|
|||
|
2026/01
|
70
|
51
|
41
|
60
|
51
|
42
|
53
|
56
|
53
|
68
|
59
|
59
|
58
|
79
|
72
|
60
|
77
|
58
|
28
|
28
|
58
|
65
|
68
|
70
|
222
|
209
|
103
|
110
|
104
|
83
|
84
|
|
2025/12
|
73
|
41
|
50
|
57
|
66
|
61
|
60
|
69
|
76
|
75
|
74
|
71
|
108
|
74
|
71
|
68
|
64
|
74
|
62
|
59
|
66
|
72
|
83
|
64
|
50
|
58
|
62
|
60
|
57
|
50
|
48
|
|
2025/11
|
47
|
47
|
57
|
64
|
83
|
80
|
38
|
46
|
95
|
89
|
69
|
52
|
51
|
55
|
59
|
52
|
18
|
32
|
42
|
51
|
53
|
59
|
67
|
109
|
66
|
213
|
205
|
72
|
70
|
81
|
|
|
2025/10
|
42
|
25
|
32
|
24
|
19
|
23
|
20
|
27
|
10
|
10
|
20
|
24
|
28
|
38
|
21
|
36
|
33
|
31
|
41
|
37
|
35
|
32
|
52
|
50
|
33
|
37
|
47
|
48
|
48
|
49
|
48
|
|
2025/09
|
30
|
39
|
14
|
14
|
55
|
29
|
50
|
49
|
48
|
41
|
35
|
19
|
33
|
42
|
49
|
34
|
24
|
23
|
17
|
25
|
21
|
12
|
19
|
27
|
32
|
41
|
29
|
39
|
36
|
41
|
|
|
2025/08
|
35
|
43
|
43
|
32
|
37
|
45
|
43
|
38
|
25
|
26
|
35
|
36
|
33
|
42
|
37
|
25
|
36
|
34
|
37
|
25
|
46
|
33
|
15
|
27
|
31
|
35
|
19
|
19
|
16
|
16
|
24
|
|
2025/07
|
22
|
24
|
21
|
25
|
23
|
30
|
27
|
28
|
36
|
39
|
43
|
45
|
44
|
39
|
48
|
37
|
32
|
44
|
40
|
21
|
27
|
42
|
32
|
27
|
28
|
18
|
27
|
37
|
38
|
33
|
42
|
|
2025/06
|
34
|
32
|
27
|
28
|
38
|
41
|
45
|
33
|
51
|
45
|
49
|
50
|
58
|
42
|
47
|
48
|
41
|
38
|
30
|
30
|
29
|
36
|
33
|
44
|
37
|
29
|
29
|
22
|
39
|
22
|
|
|
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
*: primary pollution