Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
PM2.5
PM10
O3
CO
SO2
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
23 Dec
Tue
24 Dec
Wed
25 Dec
Thu
26 Dec
Fri
27 Dec
Sat
28 Dec
Sun
29 Dec
Real-time AQI (Monitoring Station in Yan'an)
枣园
5234
PM2.5
53 *
PM10
4
O3
1.2
CO
2
SO2
48
NO2
延大医附院
5328
PM2.5
55 *
PM10
4
O3
1.0
CO
9
SO2
53
NO2
百米大道
6845
PM2.5
86 *
PM10
4
O3
1.3
CO
8
SO2
54
NO2
西北局旧址
6338
PM2.5
76 *
PM10
6
O3
1.2
CO
7
SO2
55
NO2
Air quality in the last 12 months (Yan'an)
|
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
|
|
2024/06
|
50
|
31
|
31
|
33
|
26
|
40
|
28
|
30
|
31
|
30
|
40
|
42
|
50
|
56
|
47
|
43
|
33
|
33
|
34
|
40
|
41
|
53
|
66
|
76
|
85
|
80
|
62
|
61
|
52
|
32
|
|
|
2024/05
|
37
|
40
|
51
|
29
|
28
|
47
|
48
|
50
|
52
|
70
|
116
|
50
|
47
|
57
|
75
|
56
|
79
|
70
|
58
|
55
|
56
|
55
|
46
|
53
|
45
|
44
|
38
|
44
|
39
|
56
|
46
|
|
2024/04
|
68
|
43
|
38
|
55
|
66
|
58
|
61
|
60
|
55
|
46
|
44
|
48
|
45
|
61
|
81
|
51
|
66
|
66
|
78
|
80
|
64
|
121
|
131
|
83
|
62
|
62
|
60
|
53
|
53
|
33
|
|
|
2024/03
|
49
|
59
|
59
|
75
|
67
|
53
|
97
|
54
|
69
|
66
|
67
|
51
|
65
|
56
|
69
|
123
|
73
|
178
|
92
|
69
|
78
|
125
|
109
|
28
|
46
|
50
|
79
|
73
|
85
|
57
|
63
|
|
2024/02
|
110
|
97
|
93
|
102
|
91
|
82
|
73
|
76
|
106
|
132
|
64
|
65
|
64
|
151
|
66
|
60
|
60
|
391
|
282
|
60
|
51
|
56
|
54
|
80
|
98
|
101
|
87
|
94
|
60
|
||
|
2024/01
|
63
|
60
|
70
|
55
|
53
|
51
|
55
|
71
|
68
|
70
|
70
|
68
|
75
|
72
|
54
|
85
|
94
|
71
|
81
|
65
|
24
|
29
|
41
|
41
|
47
|
68
|
63
|
62
|
68
|
84
|
87
|
|
2023/12
|
48
|
57
|
68
|
63
|
121
|
129
|
77
|
70
|
71
|
84
|
47
|
63
|
57
|
54
|
53
|
53
|
47
|
63
|
62
|
52
|
40
|
53
|
64
|
62
|
66
|
69
|
83
|
97
|
109
|
71
|
56
|
|
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