Air Quality
Excellent
No health implications.
27
PM2.5
39
PM10
106
O3
0.5
CO
9
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Apr
62
Good
Wed
1 May
77
Good
Thu
2 May
87
Good
Fri
3 May
80
Good
Sat
4 May
100
Good
Sun
5 May
87
Good
Mon
6 May
89
Good
Air quality in the last 12 months (Huinan)
|
2024/02
|
79
|
80
|
86
|
80
|
76
|
100
|
98
|
85
|
124
|
279
|
94
|
66
|
80
|
53
|
48
|
41
|
33
|
35
|
36
|
40
|
38
|
43
|
46
|
113
|
111
|
58
|
52
|
70
|
60
|
||
|
2024/01
|
97
|
75
|
85
|
55
|
44
|
49
|
40
|
48
|
61
|
60
|
49
|
48
|
62
|
42
|
58
|
62
|
70
|
63
|
79
|
54
|
55
|
52
|
57
|
55
|
66
|
73
|
67
|
61
|
83
|
101
|
71
|
|
2023/12
|
47
|
51
|
45
|
62
|
72
|
48
|
35
|
67
|
43
|
36
|
35
|
50
|
54
|
40
|
43
|
39
|
45
|
63
|
74
|
63
|
60
|
60
|
76
|
75
|
71
|
50
|
68
|
82
|
77
|
80
|
90
|
|
2023/11
|
64
|
49
|
39
|
56
|
75
|
32
|
46
|
38
|
32
|
32
|
39
|
44
|
41
|
50
|
54
|
36
|
27
|
43
|
37
|
32
|
47
|
52
|
31
|
34
|
34
|
41
|
68
|
38
|
39
|
38
|
|
|
2023/10
|
29
|
34
|
34
|
26
|
26
|
33
|
37
|
41
|
39
|
35
|
42
|
47
|
46
|
46
|
40
|
39
|
43
|
43
|
28
|
25
|
27
|
39
|
50
|
64
|
72
|
42
|
47
|
53
|
84
|
94
|
92
|
|
2023/09
|
27
|
37
|
33
|
37
|
31
|
32
|
29
|
39
|
41
|
28
|
28
|
24
|
30
|
28
|
31
|
34
|
36
|
34
|
22
|
23
|
28
|
29
|
29
|
32
|
27
|
29
|
33
|
31
|
27
|
25
|
|
|
2023/08
|
27
|
24
|
32
|
27
|
20
|
17
|
18
|
24
|
31
|
22
|
15
|
17
|
19
|
21
|
25
|
25
|
27
|
30
|
31
|
33
|
25
|
24
|
23
|
27
|
24
|
28
|
25
|
19
|
18
|
20
|
26
|
|
2023/07
|
41
|
37
|
43
|
37
|
35
|
43
|
33
|
35
|
29
|
22
|
21
|
23
|
29
|
19
|
23
|
18
|
18
|
33
|
45
|
47
|
43
|
37
|
24
|
27
|
30
|
29
|
22
|
16
|
19
|
13
|
24
|
|
2023/06
|
44
|
36
|
31
|
30
|
35
|
33
|
33
|
26
|
25
|
26
|
25
|
33
|
29
|
43
|
56
|
60
|
67
|
68
|
62
|
28
|
24
|
25
|
32
|
39
|
42
|
38
|
24
|
42
|
38
|
44
|
|
|
2023/05
|
42
|
44
|
49
|
44
|
35
|
32
|
41
|
45
|
44
|
43
|
48
|
51
|
46
|
42
|
48
|
56
|
39
|
27
|
33
|
102
|
96
|
38
|
38
|
39
|
41
|
39
|
37
|
45
|
32
|
32
|
39
|
|
2023/04
|
94
|
79
|
71
|
142
|
198
|
232
|
63
|
52
|
63
|
65
|
193
|
116
|
134
|
72
|
98
|
72
|
68
|
64
|
53
|
86
|
115
|
51
|
45
|
48
|
49
|
31
|
37
|
35
|
36
|
29
|
|
|
2023/03
|
48
|
39
|
50
|
47
|
61
|
81
|
81
|
55
|
64
|
73
|
94
|
37
|
47
|
55
|
56
|
42
|
49
|
60
|
60
|
68
|
68
|
178
|
150
|
67
|
64
|
54
|
78
|
60
|
76
|
81
|
92
|
|
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