Air Quality
Excellent
No health implications.
21
PM2.5
36
PM10
97
O3
0.7
CO
4
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 May
59
Good
Sat
24 May
81
Good
Sun
25 May
90
Good
Mon
26 May
98
Good
Tue
27 May
95
Good
Wed
28 May
49
Excellent
Thu
29 May
22
Excellent
Air quality in the last 12 months (Jiayu)
|
2025/04
|
62
|
54
|
57
|
60
|
66
|
65
|
62
|
62
|
60
|
37
|
49
|
205
|
114
|
113
|
54
|
54
|
64
|
63
|
65
|
62
|
31
|
45
|
56
|
47
|
49
|
44
|
40
|
59
|
54
|
38
|
|
|
2025/03
|
51
|
36
|
11
|
31
|
42
|
49
|
55
|
59
|
52
|
43
|
40
|
57
|
43
|
35
|
27
|
43
|
30
|
38
|
42
|
39
|
41
|
48
|
55
|
51
|
49
|
61
|
87
|
63
|
66
|
65
|
65
|
|
2025/02
|
62
|
49
|
68
|
66
|
48
|
42
|
74
|
41
|
40
|
50
|
58
|
75
|
95
|
67
|
66
|
55
|
47
|
38
|
43
|
59
|
59
|
44
|
92
|
98
|
82
|
60
|
42
|
48
|
|||
|
2025/01
|
96
|
128
|
169
|
183
|
84
|
74
|
71
|
70
|
58
|
51
|
72
|
80
|
81
|
95
|
66
|
61
|
75
|
90
|
91
|
108
|
99
|
98
|
195
|
104
|
22
|
34
|
51
|
70
|
125
|
67
|
93
|
|
2024/12
|
43
|
57
|
98
|
80
|
46
|
51
|
47
|
78
|
54
|
67
|
71
|
85
|
73
|
54
|
54
|
49
|
68
|
77
|
67
|
85
|
91
|
60
|
71
|
84
|
100
|
129
|
137
|
53
|
45
|
87
|
109
|
|
2024/11
|
64
|
87
|
70
|
76
|
59
|
53
|
42
|
43
|
52
|
47
|
53
|
52
|
55
|
70
|
85
|
78
|
20
|
19
|
26
|
31
|
38
|
47
|
61
|
58
|
31
|
30
|
40
|
47
|
47
|
41
|
|
|
2024/10
|
20
|
48
|
37
|
30
|
40
|
74
|
32
|
29
|
46
|
67
|
73
|
78
|
108
|
70
|
64
|
44
|
24
|
23
|
19
|
29
|
32
|
20
|
28
|
39
|
48
|
46
|
55
|
78
|
62
|
54
|
47
|
|
2024/09
|
37
|
45
|
41
|
38
|
44
|
48
|
42
|
36
|
43
|
37
|
35
|
31
|
29
|
32
|
38
|
28
|
43
|
36
|
27
|
34
|
33
|
25
|
32
|
35
|
46
|
59
|
53
|
34
|
30
|
43
|
|
|
2024/08
|
13
|
17
|
20
|
21
|
24
|
24
|
27
|
28
|
25
|
26
|
65
|
69
|
36
|
30
|
25
|
27
|
36
|
36
|
29
|
26
|
29
|
29
|
24
|
20
|
22
|
29
|
23
|
18
|
36
|
36
|
34
|
|
2024/07
|
19
|
20
|
22
|
16
|
18
|
17
|
19
|
22
|
22
|
26
|
36
|
34
|
24
|
33
|
27
|
26
|
19
|
16
|
14
|
15
|
19
|
19
|
24
|
31
|
34
|
26
|
17
|
8
|
9
|
15
|
15
|
|
2024/06
|
21
|
37
|
30
|
19
|
25
|
26
|
29
|
32
|
23
|
15
|
19
|
28
|
27
|
25
|
27
|
30
|
34
|
24
|
11
|
19
|
20
|
11
|
15
|
16
|
19
|
21
|
14
|
12
|
11
|
13
|
|
|
2024/05
|
37
|
30
|
29
|
24
|
30
|
26
|
37
|
45
|
44
|
41
|
45
|
100
|
75
|
59
|
61
|
53
|
55
|
48
|
62
|
39
|
40
|
17
|
23
|
33
|
28
|
30
|
24
|
23
|
25
|
53
|
41
|
|
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