Air Quality
Excellent
No health implications.
25
PM2.5
45
PM10
37
O3
0.9
CO
22
SO2
33
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Apr
57
Good
Wed
16 Apr
59
Good
Thu
17 Apr
66
Good
Fri
18 Apr
60
Good
Sat
19 Apr
59
Good
Sun
20 Apr
62
Good
Mon
21 Apr
25
Excellent
Air quality in the last 12 months (Huinan)
|
2025/02
|
88
|
91
|
53
|
61
|
67
|
55
|
43
|
35
|
50
|
60
|
53
|
69
|
76
|
67
|
68
|
50
|
34
|
47
|
52
|
51
|
49
|
52
|
56
|
50
|
73
|
53
|
58
|
83
|
|||
|
2025/01
|
58
|
41
|
47
|
57
|
82
|
77
|
57
|
44
|
47
|
58
|
68
|
79
|
77
|
51
|
41
|
47
|
51
|
56
|
62
|
82
|
89
|
84
|
73
|
70
|
71
|
71
|
49
|
72
|
77
|
66
|
81
|
|
2024/12
|
47
|
29
|
35
|
31
|
33
|
39
|
44
|
52
|
59
|
62
|
48
|
51
|
57
|
50
|
32
|
38
|
48
|
53
|
58
|
60
|
51
|
48
|
54
|
45
|
55
|
45
|
44
|
45
|
46
|
60
|
40
|
|
2024/11
|
74
|
103
|
79
|
31
|
27
|
32
|
34
|
52
|
48
|
39
|
60
|
39
|
42
|
34
|
26
|
44
|
41
|
46
|
41
|
56
|
59
|
58
|
56
|
53
|
50
|
45
|
39
|
52
|
39
|
51
|
|
|
2024/10
|
15
|
25
|
28
|
31
|
34
|
49
|
30
|
37
|
35
|
36
|
35
|
45
|
45
|
37
|
18
|
29
|
55
|
54
|
28
|
36
|
25
|
40
|
43
|
50
|
60
|
86
|
57
|
34
|
52
|
66
|
60
|
|
2024/09
|
20
|
18
|
23
|
22
|
15
|
22
|
28
|
21
|
26
|
22
|
25
|
21
|
20
|
22
|
24
|
30
|
26
|
29
|
27
|
21
|
19
|
26
|
24
|
24
|
25
|
17
|
26
|
30
|
27
|
26
|
|
|
2024/08
|
18
|
22
|
22
|
23
|
17
|
16
|
28
|
33
|
29
|
29
|
23
|
24
|
24
|
28
|
31
|
28
|
31
|
33
|
25
|
25
|
17
|
17
|
18
|
28
|
31
|
25
|
25
|
21
|
23
|
24
|
24
|
|
2024/07
|
45
|
38
|
14
|
28
|
31
|
24
|
23
|
46
|
48
|
52
|
61
|
66
|
67
|
62
|
60
|
36
|
16
|
22
|
32
|
26
|
21
|
20
|
18
|
17
|
17
|
12
|
11
|
9
|
15
|
24
|
20
|
|
2024/06
|
26
|
20
|
22
|
30
|
33
|
26
|
27
|
22
|
21
|
25
|
30
|
28
|
25
|
22
|
17
|
24
|
30
|
27
|
43
|
34
|
36
|
42
|
35
|
19
|
18
|
26
|
37
|
38
|
26
|
28
|
|
|
2024/05
|
35
|
46
|
50
|
40
|
35
|
29
|
34
|
30
|
50
|
46
|
56
|
39
|
35
|
42
|
22
|
29
|
35
|
49
|
28
|
20
|
24
|
38
|
31
|
26
|
24
|
17
|
13
|
25
|
34
|
32
|
21
|
|
2024/04
|
57
|
65
|
62
|
64
|
74
|
63
|
69
|
73
|
61
|
104
|
46
|
49
|
43
|
45
|
97
|
135
|
80
|
62
|
98
|
152
|
88
|
48
|
60
|
44
|
48
|
58
|
56
|
34
|
34
|
33
|
|
|
2024/03
|
43
|
50
|
41
|
48
|
40
|
41
|
39
|
39
|
43
|
58
|
65
|
40
|
45
|
50
|
55
|
58
|
51
|
43
|
37
|
39
|
45
|
47
|
45
|
37
|
32
|
39
|
53
|
181
|
86
|
55
|
52
|
|
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