Air Quality
Excellent
No health implications.
28
PM2.5
38
PM10
94
O3
0.8
CO
4
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 May
64
Good
Sat
24 May
88
Good
Sun
25 May
100
Good
Mon
26 May
108
Light
Tue
27 May
102
Light
Wed
28 May
21
Excellent
Thu
29 May
27
Excellent
Air quality in the last 12 months (Dongxihu)
|
2025/04
|
70
|
66
|
61
|
71
|
79
|
77
|
77
|
73
|
68
|
47
|
57
|
201
|
116
|
101
|
59
|
61
|
68
|
74
|
68
|
60
|
35
|
53
|
61
|
62
|
73
|
49
|
50
|
56
|
51
|
42
|
|
|
2025/03
|
75
|
38
|
15
|
41
|
39
|
69
|
80
|
89
|
79
|
70
|
65
|
72
|
62
|
51
|
31
|
45
|
36
|
48
|
52
|
55
|
56
|
61
|
64
|
61
|
53
|
63
|
97
|
73
|
72
|
72
|
72
|
|
2025/02
|
72
|
61
|
96
|
96
|
69
|
43
|
78
|
43
|
51
|
65
|
75
|
93
|
111
|
93
|
86
|
82
|
68
|
70
|
68
|
92
|
88
|
81
|
112
|
122
|
116
|
96
|
61
|
68
|
|||
|
2025/01
|
135
|
176
|
194
|
214
|
81
|
82
|
57
|
69
|
48
|
45
|
86
|
80
|
106
|
111
|
63
|
73
|
92
|
101
|
148
|
165
|
156
|
152
|
219
|
97
|
17
|
40
|
56
|
81
|
202
|
82
|
121
|
|
2024/12
|
70
|
87
|
113
|
78
|
50
|
48
|
54
|
60
|
57
|
77
|
87
|
107
|
88
|
56
|
63
|
71
|
95
|
79
|
68
|
102
|
99
|
58
|
68
|
83
|
135
|
149
|
161
|
50
|
60
|
109
|
154
|
|
2024/11
|
77
|
85
|
94
|
86
|
56
|
59
|
55
|
53
|
50
|
47
|
57
|
55
|
58
|
62
|
90
|
59
|
18
|
20
|
22
|
30
|
45
|
63
|
75
|
72
|
31
|
40
|
49
|
59
|
60
|
64
|
|
|
2024/10
|
21
|
52
|
38
|
33
|
43
|
55
|
19
|
33
|
52
|
89
|
89
|
72
|
62
|
64
|
84
|
55
|
28
|
16
|
21
|
34
|
19
|
24
|
44
|
56
|
42
|
38
|
62
|
112
|
85
|
70
|
40
|
|
2024/09
|
44
|
51
|
34
|
43
|
50
|
45
|
41
|
44
|
48
|
40
|
42
|
25
|
24
|
28
|
36
|
22
|
41
|
35
|
23
|
29
|
29
|
25
|
30
|
42
|
63
|
54
|
64
|
33
|
39
|
43
|
|
|
2024/08
|
13
|
16
|
22
|
19
|
19
|
23
|
26
|
31
|
28
|
33
|
78
|
67
|
37
|
38
|
26
|
24
|
31
|
37
|
30
|
21
|
30
|
38
|
33
|
34
|
30
|
37
|
19
|
20
|
34
|
33
|
42
|
|
2024/07
|
25
|
21
|
24
|
15
|
16
|
16
|
17
|
19
|
21
|
19
|
29
|
29
|
17
|
22
|
31
|
31
|
21
|
17
|
14
|
17
|
18
|
21
|
22
|
37
|
28
|
20
|
14
|
11
|
9
|
14
|
17
|
|
2024/06
|
34
|
37
|
31
|
25
|
27
|
39
|
33
|
36
|
25
|
18
|
17
|
26
|
36
|
31
|
32
|
39
|
39
|
31
|
10
|
22
|
18
|
14
|
19
|
25
|
17
|
28
|
18
|
11
|
9
|
16
|
|
|
2024/05
|
52
|
42
|
32
|
25
|
39
|
37
|
49
|
43
|
50
|
52
|
59
|
106
|
83
|
66
|
67
|
56
|
58
|
53
|
64
|
42
|
45
|
27
|
22
|
39
|
36
|
36
|
27
|
25
|
31
|
72
|
53
|
|
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