Air Quality
Excellent
No health implications.
11
PM2.5
15
PM10
73
O3
0.7
CO
6
SO2
24
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
28 Apr
86
Good
Mon
29 Apr
95
Good
Tue
30 Apr
78
Good
Wed
1 May
81
Good
Thu
2 May
89
Good
Fri
3 May
91
Good
Sat
4 May
90
Good
Air quality in the last 12 months (Huqiu)
|
2024/02
|
22
|
27
|
27
|
39
|
53
|
88
|
63
|
86
|
167
|
170
|
112
|
70
|
48
|
48
|
58
|
28
|
30
|
31
|
36
|
19
|
16
|
30
|
49
|
58
|
75
|
82
|
56
|
47
|
28
|
||
|
2024/01
|
130
|
80
|
101
|
114
|
102
|
200
|
88
|
32
|
108
|
129
|
122
|
98
|
132
|
131
|
34
|
30
|
58
|
51
|
37
|
55
|
64
|
37
|
32
|
51
|
61
|
85
|
115
|
108
|
117
|
57
|
29
|
|
2023/12
|
50
|
60
|
84
|
102
|
97
|
81
|
89
|
61
|
70
|
69
|
22
|
45
|
55
|
80
|
35
|
42
|
25
|
32
|
51
|
66
|
37
|
40
|
48
|
85
|
102
|
109
|
128
|
166
|
113
|
110
|
199
|
|
2023/11
|
55
|
40
|
53
|
43
|
36
|
25
|
48
|
57
|
70
|
24
|
26
|
42
|
32
|
56
|
95
|
94
|
78
|
36
|
50
|
72
|
85
|
74
|
109
|
36
|
32
|
52
|
76
|
95
|
80
|
25
|
|
|
2023/10
|
30
|
26
|
25
|
31
|
34
|
29
|
23
|
29
|
49
|
56
|
36
|
41
|
28
|
47
|
51
|
68
|
86
|
65
|
68
|
26
|
39
|
49
|
37
|
47
|
76
|
85
|
66
|
29
|
39
|
44
|
63
|
|
2023/09
|
32
|
43
|
44
|
28
|
29
|
30
|
45
|
43
|
42
|
54
|
56
|
33
|
22
|
22
|
21
|
26
|
35
|
59
|
45
|
27
|
25
|
22
|
20
|
26
|
44
|
46
|
55
|
52
|
43
|
34
|
|
|
2023/08
|
19
|
24
|
23
|
24
|
31
|
40
|
29
|
39
|
34
|
61
|
70
|
79
|
57
|
32
|
27
|
40
|
35
|
38
|
33
|
30
|
38
|
40
|
36
|
62
|
59
|
44
|
28
|
21
|
25
|
27
|
36
|
|
2023/07
|
29
|
40
|
32
|
28
|
38
|
34
|
27
|
24
|
34
|
26
|
45
|
52
|
41
|
42
|
36
|
43
|
18
|
25
|
23
|
23
|
27
|
17
|
25
|
33
|
29
|
19
|
15
|
14
|
14
|
18
|
22
|
|
2023/06
|
45
|
77
|
58
|
38
|
39
|
35
|
52
|
42
|
71
|
75
|
51
|
41
|
28
|
63
|
82
|
65
|
30
|
19
|
23
|
35
|
81
|
56
|
43
|
24
|
21
|
17
|
30
|
32
|
35
|
23
|
|
|
2023/05
|
71
|
48
|
38
|
37
|
36
|
36
|
29
|
40
|
50
|
43
|
44
|
54
|
69
|
68
|
62
|
67
|
25
|
31
|
37
|
51
|
54
|
76
|
103
|
46
|
53
|
60
|
38
|
50
|
53
|
40
|
32
|
|
2023/04
|
50
|
50
|
45
|
28
|
36
|
51
|
54
|
57
|
51
|
62
|
122
|
175
|
119
|
83
|
59
|
75
|
77
|
69
|
45
|
34
|
44
|
70
|
81
|
44
|
48
|
63
|
64
|
55
|
58
|
63
|
|
|
2023/03
|
91
|
81
|
36
|
67
|
72
|
72
|
75
|
76
|
67
|
84
|
59
|
64
|
54
|
54
|
70
|
68
|
30
|
45
|
37
|
55
|
27
|
45
|
62
|
86
|
55
|
65
|
88
|
69
|
56
|
54
|
66
|
|
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