Air Quality
Excellent
No health implications.
3
PM2.5
6
PM10
26
O3
0.6
CO
3
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
31 Jul
54
Good
Fri
1 Aug
55
Good
Sat
2 Aug
53
Good
Sun
3 Aug
52
Good
Mon
4 Aug
87
Good
Tue
5 Aug
97
Good
Wed
6 Aug
21
Excellent
Air quality in the last 12 months (Huqiu)
|
2025/06
|
12
|
12
|
38
|
49
|
43
|
36
|
46
|
19
|
18
|
23
|
30
|
16
|
12
|
23
|
11
|
22
|
44
|
43
|
28
|
20
|
21
|
11
|
16
|
28
|
36
|
32
|
17
|
20
|
20
|
23
|
|
|
2025/05
|
49
|
55
|
49
|
26
|
37
|
69
|
71
|
42
|
16
|
39
|
31
|
39
|
45
|
44
|
70
|
38
|
30
|
72
|
48
|
35
|
13
|
43
|
21
|
44
|
49
|
37
|
26
|
35
|
38
|
43
|
49
|
|
2025/04
|
42
|
59
|
42
|
51
|
64
|
66
|
65
|
58
|
73
|
83
|
67
|
127
|
94
|
79
|
51
|
49
|
58
|
60
|
68
|
45
|
45
|
41
|
44
|
67
|
58
|
37
|
43
|
55
|
43
|
51
|
|
|
2025/03
|
44
|
51
|
21
|
18
|
34
|
44
|
57
|
89
|
51
|
59
|
73
|
32
|
33
|
41
|
27
|
42
|
33
|
41
|
53
|
53
|
40
|
43
|
55
|
57
|
77
|
87
|
71
|
62
|
65
|
45
|
34
|
|
2025/02
|
26
|
63
|
74
|
65
|
43
|
40
|
50
|
34
|
43
|
61
|
40
|
94
|
59
|
40
|
90
|
89
|
62
|
41
|
54
|
38
|
34
|
61
|
83
|
76
|
117
|
103
|
94
|
81
|
|||
|
2025/01
|
83
|
52
|
66
|
56
|
95
|
80
|
68
|
67
|
32
|
50
|
62
|
67
|
76
|
111
|
41
|
56
|
64
|
78
|
93
|
146
|
170
|
74
|
43
|
42
|
27
|
50
|
45
|
44
|
85
|
66
|
53
|
|
2024/12
|
60
|
68
|
72
|
38
|
57
|
116
|
158
|
31
|
53
|
46
|
59
|
55
|
75
|
71
|
59
|
57
|
75
|
76
|
31
|
52
|
79
|
47
|
43
|
60
|
88
|
135
|
55
|
60
|
64
|
79
|
81
|
|
2024/11
|
10
|
48
|
62
|
65
|
35
|
30
|
24
|
28
|
33
|
36
|
39
|
41
|
45
|
38
|
64
|
42
|
21
|
26
|
29
|
35
|
55
|
75
|
19
|
28
|
33
|
31
|
60
|
65
|
45
|
49
|
|
|
2024/10
|
20
|
27
|
22
|
28
|
22
|
14
|
18
|
34
|
42
|
50
|
60
|
54
|
20
|
36
|
56
|
36
|
26
|
33
|
28
|
44
|
26
|
33
|
44
|
25
|
30
|
20
|
19
|
52
|
27
|
30
|
23
|
|
2024/09
|
32
|
35
|
26
|
28
|
26
|
36
|
54
|
41
|
18
|
35
|
9
|
26
|
14
|
21
|
20
|
14
|
16
|
21
|
21
|
11
|
22
|
27
|
27
|
43
|
52
|
24
|
27
|
34
|
34
|
35
|
|
|
2024/08
|
22
|
18
|
39
|
34
|
37
|
36
|
43
|
38
|
40
|
41
|
41
|
29
|
35
|
25
|
22
|
35
|
26
|
20
|
17
|
19
|
23
|
30
|
39
|
26
|
34
|
28
|
27
|
28
|
18
|
28
|
32
|
|
2024/07
|
22
|
23
|
17
|
25
|
21
|
30
|
21
|
28
|
32
|
20
|
25
|
23
|
16
|
18
|
48
|
32
|
30
|
24
|
27
|
28
|
32
|
31
|
26
|
19
|
23
|
18
|
16
|
20
|
17
|
23
|
23
|
|
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