Air Quality
Excellent
No health implications.
21
PM2.5
46
PM10
142
O3
0.6
CO
7
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 May
95
Good
Wed
14 May
82
Good
Thu
15 May
82
Good
Fri
16 May
69
Good
Sat
17 May
57
Good
Sun
18 May
49
Excellent
Mon
19 May
44
Excellent
Air quality in the last 12 months (Huadian)
|
2025/02
|
83
|
91
|
59
|
49
|
57
|
48
|
47
|
37
|
42
|
47
|
52
|
60
|
59
|
54
|
64
|
51
|
31
|
36
|
39
|
42
|
39
|
44
|
46
|
41
|
78
|
57
|
65
|
96
|
|||
|
2025/01
|
55
|
38
|
40
|
47
|
82
|
79
|
56
|
52
|
48
|
56
|
70
|
76
|
68
|
51
|
38
|
50
|
48
|
55
|
65
|
98
|
86
|
94
|
71
|
69
|
79
|
66
|
42
|
70
|
73
|
56
|
69
|
|
2024/12
|
48
|
27
|
30
|
29
|
31
|
42
|
38
|
42
|
49
|
54
|
41
|
42
|
53
|
46
|
31
|
36
|
47
|
47
|
50
|
54
|
54
|
40
|
47
|
35
|
51
|
49
|
41
|
38
|
38
|
62
|
38
|
|
2024/11
|
71
|
75
|
59
|
36
|
24
|
29
|
34
|
46
|
51
|
43
|
78
|
38
|
34
|
35
|
26
|
42
|
45
|
45
|
42
|
60
|
59
|
59
|
59
|
51
|
51
|
39
|
35
|
56
|
38
|
49
|
|
|
2024/10
|
12
|
22
|
24
|
25
|
31
|
46
|
32
|
31
|
29
|
32
|
29
|
43
|
35
|
32
|
16
|
21
|
48
|
55
|
25
|
28
|
27
|
43
|
52
|
47
|
62
|
101
|
74
|
28
|
37
|
73
|
52
|
|
2024/09
|
22
|
20
|
22
|
24
|
17
|
21
|
28
|
22
|
26
|
22
|
26
|
23
|
20
|
23
|
23
|
29
|
28
|
29
|
28
|
21
|
19
|
27
|
20
|
19
|
21
|
14
|
20
|
24
|
34
|
26
|
|
|
2024/08
|
21
|
25
|
28
|
24
|
18
|
21
|
34
|
36
|
32
|
31
|
22
|
25
|
24
|
32
|
36
|
35
|
35
|
37
|
26
|
24
|
18
|
19
|
19
|
31
|
35
|
26
|
28
|
21
|
23
|
23
|
23
|
|
2024/07
|
51
|
41
|
14
|
29
|
29
|
23
|
26
|
51
|
53
|
57
|
65
|
78
|
74
|
64
|
61
|
42
|
19
|
24
|
34
|
30
|
25
|
22
|
17
|
23
|
22
|
12
|
11
|
10
|
15
|
28
|
20
|
|
2024/06
|
25
|
26
|
21
|
34
|
38
|
31
|
30
|
24
|
20
|
23
|
31
|
31
|
26
|
25
|
19
|
25
|
30
|
28
|
43
|
38
|
39
|
44
|
39
|
22
|
19
|
28
|
38
|
44
|
33
|
35
|
|
|
2024/05
|
38
|
52
|
58
|
48
|
43
|
32
|
37
|
30
|
49
|
47
|
59
|
43
|
38
|
45
|
27
|
30
|
35
|
53
|
33
|
26
|
26
|
41
|
35
|
27
|
26
|
19
|
13
|
24
|
31
|
29
|
23
|
|
2024/04
|
64
|
66
|
65
|
59
|
62
|
65
|
62
|
60
|
55
|
68
|
52
|
53
|
51
|
59
|
96
|
140
|
81
|
76
|
127
|
143
|
85
|
58
|
84
|
53
|
54
|
74
|
66
|
45
|
43
|
34
|
|
|
2024/03
|
52
|
54
|
44
|
47
|
43
|
44
|
41
|
44
|
44
|
61
|
77
|
44
|
49
|
51
|
64
|
61
|
51
|
43
|
41
|
42
|
40
|
46
|
44
|
35
|
31
|
39
|
51
|
279
|
105
|
60
|
55
|
|
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