Air Quality
Excellent
No health implications.
8
PM2.5
22
PM10
141
O3
0.3
CO
10
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 May
61
Good
Fri
16 May
64
Good
Sat
17 May
63
Good
Sun
18 May
65
Good
Mon
19 May
66
Good
Tue
20 May
61
Good
Wed
21 May
94
Good
Air quality in the last 12 months (Huangyuan)
|
2025/02
|
47
|
57
|
42
|
40
|
44
|
50
|
52
|
51
|
51
|
44
|
61
|
66
|
59
|
51
|
41
|
40
|
39
|
49
|
60
|
59
|
57
|
66
|
64
|
55
|
50
|
41
|
45
|
48
|
|||
|
2025/01
|
50
|
45
|
48
|
51
|
41
|
51
|
57
|
66
|
65
|
62
|
51
|
41
|
40
|
48
|
53
|
42
|
44
|
45
|
41
|
42
|
53
|
47
|
57
|
60
|
94
|
54
|
47
|
49
|
96
|
42
|
39
|
|
2024/12
|
44
|
47
|
51
|
55
|
57
|
61
|
63
|
65
|
64
|
57
|
54
|
56
|
58
|
67
|
55
|
39
|
44
|
57
|
56
|
54
|
75
|
68
|
68
|
75
|
75
|
62
|
50
|
47
|
55
|
59
|
43
|
|
2024/11
|
48
|
34
|
43
|
46
|
40
|
44
|
37
|
43
|
58
|
68
|
60
|
55
|
43
|
49
|
67
|
49
|
49
|
47
|
52
|
55
|
56
|
41
|
50
|
52
|
48
|
48
|
36
|
41
|
51
|
53
|
|
|
2024/10
|
21
|
36
|
39
|
43
|
41
|
45
|
47
|
39
|
34
|
33
|
40
|
32
|
33
|
37
|
48
|
25
|
26
|
36
|
37
|
41
|
60
|
34
|
38
|
42
|
43
|
37
|
33
|
34
|
48
|
52
|
41
|
|
2024/09
|
37
|
34
|
35
|
19
|
16
|
21
|
29
|
42
|
20
|
24
|
25
|
28
|
19
|
23
|
38
|
21
|
24
|
34
|
39
|
22
|
27
|
34
|
28
|
35
|
41
|
33
|
50
|
46
|
25
|
20
|
|
|
2024/08
|
35
|
28
|
27
|
28
|
33
|
30
|
39
|
31
|
36
|
21
|
26
|
29
|
36
|
22
|
28
|
30
|
27
|
26
|
29
|
30
|
35
|
48
|
43
|
27
|
28
|
31
|
39
|
40
|
25
|
34
|
33
|
|
2024/07
|
22
|
28
|
24
|
26
|
39
|
49
|
52
|
30
|
44
|
38
|
32
|
39
|
36
|
32
|
42
|
39
|
26
|
30
|
27
|
36
|
141
|
55
|
36
|
49
|
58
|
51
|
40
|
22
|
24
|
26
|
23
|
|
2024/06
|
46
|
35
|
33
|
27
|
33
|
25
|
38
|
27
|
29
|
30
|
28
|
31
|
28
|
26
|
34
|
25
|
28
|
22
|
40
|
30
|
25
|
31
|
30
|
29
|
36
|
31
|
38
|
26
|
30
|
24
|
|
|
2024/05
|
38
|
40
|
41
|
39
|
52
|
56
|
52
|
46
|
44
|
39
|
24
|
30
|
40
|
33
|
77
|
60
|
67
|
48
|
50
|
38
|
44
|
41
|
56
|
86
|
34
|
41
|
39
|
33
|
20
|
28
|
40
|
|
2024/04
|
58
|
69
|
56
|
59
|
44
|
31
|
39
|
44
|
42
|
41
|
42
|
38
|
42
|
77
|
227
|
93
|
60
|
44
|
43
|
39
|
48
|
38
|
35
|
36
|
33
|
59
|
58
|
201
|
52
|
33
|
|
|
2024/03
|
64
|
55
|
52
|
76
|
61
|
62
|
56
|
71
|
64
|
55
|
38
|
42
|
46
|
49
|
82
|
169
|
77
|
76
|
47
|
48
|
41
|
55
|
75
|
39
|
35
|
40
|
44
|
35
|
32
|
84
|
63
|
|
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