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
30 Aug
Sun
31 Aug
Mon
1 Sep
Tue
2 Sep
Wed
3 Sep
Thu
4 Sep
Fri
5 Sep
Yan'an Air quality rank
Real-time AQI (Monitoring Station in Yan'an)
枣园
317
PM2.5
31
PM10
7
O3
0.1
CO
6
SO2
29
NO2
延大医附院
276
PM2.5
27
PM10
4
O3
0.6
CO
4
SO2
35
NO2
百米大道
328
PM2.5
32
PM10
10
O3
0.6
CO
2
SO2
35
NO2
西北局旧址
2711
PM2.5
27
PM10
11
O3
0.6
CO
8
SO2
28
NO2
Air quality in the last 12 months (Yan'an)
|
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
|
|
|
2025/05
|
75
|
105
|
42
|
91
|
285
|
269
|
146
|
133
|
65
|
48
|
43
|
56
|
67
|
75
|
61
|
136
|
156
|
73
|
63
|
58
|
60
|
183
|
65
|
63
|
45
|
25
|
37
|
47
|
52
|
53
|
24
|
|
2025/04
|
58
|
59
|
85
|
107
|
62
|
81
|
98
|
119
|
112
|
59
|
172
|
207
|
140
|
49
|
47
|
123
|
104
|
81
|
77
|
74
|
224
|
158
|
68
|
48
|
61
|
56
|
41
|
38
|
64
|
137
|
|
|
2025/03
|
84
|
67
|
30
|
36
|
46
|
53
|
71
|
78
|
65
|
66
|
268
|
164
|
74
|
52
|
49
|
31
|
41
|
41
|
37
|
44
|
56
|
65
|
128
|
325
|
223
|
304
|
187
|
181
|
44
|
48
|
51
|
|
2025/02
|
63
|
50
|
41
|
56
|
38
|
121
|
48
|
33
|
51
|
62
|
78
|
67
|
63
|
63
|
62
|
72
|
66
|
70
|
63
|
57
|
65
|
41
|
39
|
47
|
60
|
65
|
62
|
62
|
|||
|
2025/01
|
61
|
59
|
60
|
71
|
105
|
45
|
46
|
43
|
46
|
52
|
65
|
69
|
87
|
41
|
38
|
48
|
57
|
66
|
62
|
57
|
58
|
78
|
109
|
143
|
66
|
59
|
34
|
71
|
118
|
66
|
59
|
|
2024/12
|
46
|
53
|
53
|
55
|
53
|
46
|
41
|
41
|
60
|
52
|
49
|
57
|
48
|
43
|
43
|
49
|
53
|
45
|
70
|
60
|
41
|
50
|
69
|
86
|
75
|
45
|
48
|
52
|
56
|
69
|
69
|
|
2024/11
|
32
|
29
|
35
|
40
|
42
|
50
|
64
|
73
|
80
|
73
|
73
|
52
|
38
|
35
|
70
|
60
|
41
|
49
|
38
|
40
|
48
|
60
|
86
|
74
|
51
|
48
|
62
|
46
|
42
|
43
|
|
|
2024/10
|
59
|
37
|
34
|
45
|
51
|
49
|
34
|
42
|
50
|
37
|
47
|
53
|
50
|
45
|
50
|
67
|
62
|
28
|
27
|
20
|
22
|
27
|
38
|
45
|
54
|
42
|
47
|
43
|
50
|
45
|
35
|
|
2024/09
|
31
|
47
|
37
|
40
|
33
|
40
|
20
|
40
|
61
|
32
|
35
|
41
|
35
|
23
|
43
|
38
|
33
|
34
|
38
|
20
|
24
|
33
|
44
|
49
|
51
|
52
|
78
|
63
|
29
|
36
|
|
|
2024/08
|
27
|
42
|
28
|
24
|
27
|
28
|
16
|
31
|
50
|
100
|
38
|
30
|
34
|
36
|
27
|
29
|
36
|
19
|
22
|
25
|
27
|
37
|
41
|
44
|
41
|
20
|
27
|
30
|
36
|
37
|
40
|
|
2024/07
|
32
|
35
|
37
|
23
|
31
|
37
|
42
|
41
|
37
|
39
|
38
|
40
|
40
|
55
|
38
|
20
|
26
|
23
|
32
|
22
|
40
|
42
|
30
|
19
|
42
|
39
|
44
|
46
|
40
|
24
|
33
|
|
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