Air Quality
Excellent
No health implications.
7
PM2.5
15
PM10
50
O3
0.2
CO
9
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Oct
45
Excellent
Mon
20 Oct
68
Good
Tue
21 Oct
64
Good
Wed
22 Oct
66
Good
Thu
23 Oct
65
Good
Fri
24 Oct
67
Good
Sat
25 Oct
31
Excellent
Air quality in the last 12 months (Huairen)
|
2025/08
|
51
|
41
|
42
|
37
|
34
|
51
|
39
|
20
|
28
|
40
|
50
|
46
|
33
|
52
|
50
|
28
|
43
|
32
|
27
|
27
|
33
|
48
|
26
|
28
|
49
|
40
|
14
|
34
|
50
|
49
|
47
|
|
2025/07
|
32
|
41
|
31
|
42
|
16
|
29
|
21
|
33
|
31
|
30
|
43
|
50
|
39
|
51
|
43
|
20
|
29
|
47
|
46
|
15
|
40
|
42
|
36
|
22
|
31
|
20
|
23
|
32
|
20
|
29
|
48
|
|
2025/06
|
39
|
24
|
26
|
31
|
42
|
40
|
36
|
39
|
42
|
39
|
60
|
64
|
30
|
31
|
13
|
19
|
43
|
48
|
31
|
31
|
38
|
42
|
47
|
53
|
54
|
55
|
45
|
37
|
43
|
44
|
|
|
2025/05
|
44
|
39
|
27
|
48
|
74
|
42
|
70
|
74
|
25
|
55
|
42
|
57
|
75
|
21
|
50
|
124
|
50
|
57
|
63
|
78
|
53
|
63
|
59
|
54
|
48
|
49
|
47
|
56
|
58
|
63
|
23
|
|
2025/04
|
51
|
35
|
96
|
121
|
36
|
68
|
66
|
53
|
55
|
48
|
198
|
37
|
31
|
21
|
51
|
139
|
210
|
32
|
52
|
73
|
58
|
54
|
60
|
30
|
54
|
71
|
26
|
44
|
59
|
58
|
|
|
2025/03
|
107
|
59
|
41
|
52
|
50
|
48
|
65
|
75
|
78
|
93
|
177
|
101
|
92
|
71
|
34
|
30
|
36
|
31
|
46
|
42
|
52
|
63
|
209
|
150
|
118
|
125
|
98
|
44
|
22
|
38
|
50
|
|
2025/02
|
82
|
39
|
27
|
39
|
42
|
84
|
22
|
48
|
70
|
71
|
78
|
56
|
52
|
64
|
82
|
38
|
58
|
53
|
43
|
42
|
51
|
35
|
37
|
64
|
58
|
84
|
90
|
83
|
|||
|
2025/01
|
76
|
47
|
47
|
57
|
86
|
33
|
35
|
22
|
47
|
67
|
64
|
48
|
76
|
38
|
40
|
70
|
85
|
65
|
78
|
65
|
71
|
84
|
117
|
119
|
114
|
122
|
24
|
60
|
208
|
114
|
99
|
|
2024/12
|
55
|
34
|
52
|
49
|
37
|
41
|
27
|
56
|
82
|
68
|
62
|
75
|
62
|
50
|
56
|
61
|
51
|
44
|
80
|
53
|
41
|
81
|
88
|
90
|
57
|
45
|
43
|
62
|
93
|
114
|
69
|
|
2024/11
|
77
|
71
|
44
|
38
|
59
|
63
|
91
|
112
|
137
|
60
|
76
|
77
|
77
|
59
|
62
|
69
|
54
|
69
|
64
|
55
|
57
|
60
|
80
|
94
|
27
|
29
|
30
|
29
|
44
|
56
|
|
|
2024/10
|
25
|
39
|
56
|
61
|
69
|
56
|
41
|
64
|
54
|
48
|
65
|
72
|
72
|
61
|
45
|
76
|
84
|
24
|
25
|
38
|
53
|
33
|
62
|
70
|
72
|
55
|
41
|
77
|
61
|
74
|
72
|
|
2024/09
|
22
|
22
|
36
|
27
|
17
|
34
|
25
|
40
|
43
|
23
|
32
|
34
|
42
|
23
|
34
|
38
|
42
|
50
|
52
|
19
|
18
|
43
|
68
|
68
|
35
|
66
|
70
|
59
|
39
|
20
|
|
|
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