Air Quality
Excellent
No health implications.
19
PM2.5
33
PM10
56
O3
0.4
CO
5
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Jul
66
Good
Thu
17 Jul
61
Good
Fri
18 Jul
88
Good
Sat
19 Jul
89
Good
Sun
20 Jul
92
Good
Mon
21 Jul
18
Excellent
Tue
22 Jul
33
Excellent
Air quality in the last 12 months (Huaiyuan)
|
2025/06
|
30
|
18
|
51
|
68
|
54
|
43
|
27
|
33
|
28
|
46
|
40
|
45
|
50
|
36
|
40
|
54
|
55
|
20
|
11
|
8
|
15
|
31
|
46
|
44
|
31
|
36
|
30
|
15
|
13
|
20
|
|
|
2025/05
|
64
|
71
|
58
|
53
|
50
|
89
|
81
|
52
|
35
|
42
|
53
|
51
|
54
|
68
|
93
|
62
|
94
|
80
|
83
|
64
|
46
|
57
|
72
|
75
|
67
|
84
|
84
|
63
|
62
|
66
|
77
|
|
2025/04
|
68
|
67
|
55
|
75
|
91
|
81
|
67
|
84
|
89
|
102
|
83
|
207
|
107
|
72
|
55
|
68
|
74
|
79
|
76
|
58
|
55
|
79
|
86
|
90
|
63
|
54
|
58
|
67
|
58
|
61
|
|
|
2025/03
|
105
|
81
|
45
|
73
|
93
|
87
|
74
|
92
|
102
|
89
|
120
|
171
|
129
|
48
|
60
|
59
|
55
|
52
|
64
|
65
|
56
|
62
|
74
|
116
|
85
|
71
|
119
|
157
|
110
|
80
|
62
|
|
2025/02
|
116
|
92
|
120
|
102
|
65
|
54
|
82
|
44
|
55
|
64
|
78
|
122
|
81
|
94
|
115
|
101
|
58
|
67
|
88
|
53
|
51
|
83
|
102
|
59
|
76
|
122
|
95
|
96
|
|||
|
2025/01
|
92
|
164
|
124
|
133
|
149
|
93
|
67
|
80
|
51
|
67
|
90
|
85
|
105
|
141
|
72
|
76
|
109
|
119
|
163
|
148
|
130
|
185
|
83
|
57
|
39
|
94
|
54
|
111
|
170
|
78
|
134
|
|
2024/12
|
88
|
121
|
71
|
85
|
122
|
160
|
128
|
49
|
60
|
85
|
116
|
100
|
111
|
92
|
79
|
99
|
137
|
87
|
68
|
93
|
97
|
70
|
86
|
111
|
144
|
163
|
103
|
96
|
73
|
99
|
115
|
|
2024/11
|
69
|
137
|
107
|
103
|
65
|
71
|
50
|
44
|
54
|
55
|
53
|
65
|
88
|
93
|
89
|
61
|
43
|
38
|
30
|
51
|
66
|
107
|
46
|
50
|
38
|
53
|
83
|
66
|
63
|
77
|
|
|
2024/10
|
37
|
49
|
47
|
42
|
34
|
19
|
19
|
52
|
53
|
75
|
79
|
79
|
70
|
61
|
71
|
65
|
41
|
25
|
42
|
54
|
67
|
80
|
68
|
48
|
60
|
69
|
106
|
122
|
90
|
62
|
60
|
|
2024/09
|
47
|
41
|
34
|
38
|
50
|
43
|
40
|
37
|
29
|
34
|
36
|
15
|
30
|
45
|
36
|
42
|
11
|
28
|
23
|
29
|
32
|
37
|
42
|
52
|
58
|
47
|
37
|
36
|
43
|
47
|
|
|
2024/08
|
21
|
21
|
29
|
34
|
33
|
27
|
28
|
35
|
40
|
45
|
80
|
54
|
47
|
25
|
27
|
26
|
27
|
35
|
30
|
28
|
46
|
47
|
46
|
42
|
47
|
41
|
15
|
20
|
27
|
32
|
36
|
|
2024/07
|
20
|
29
|
39
|
16
|
27
|
29
|
30
|
27
|
20
|
46
|
41
|
27
|
21
|
21
|
17
|
41
|
36
|
19
|
31
|
25
|
28
|
29
|
38
|
37
|
27
|
25
|
15
|
18
|
20
|
25
|
28
|
|
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