Air Quality
Excellent
No health implications.
4
PM2.5
9
PM10
28
O3
0.6
CO
2
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
25 May
58
Good
Tue
26 May
58
Good
Wed
27 May
74
Good
Thu
28 May
90
Good
Fri
29 May
90
Good
Sat
30 May
87
Good
Sun
31 May
35
Excellent
Air quality in the last 12 months (Huiji)
|
2026/04
|
65
|
55
|
100
|
64
|
91
|
90
|
78
|
55
|
48
|
69
|
62
|
62
|
44
|
53
|
46
|
68
|
66
|
68
|
84
|
93
|
46
|
36
|
50
|
47
|
48
|
66
|
93
|
71
|
41
|
59
|
|
|
2026/03
|
59
|
75
|
122
|
160
|
106
|
76
|
65
|
89
|
119
|
150
|
150
|
162
|
142
|
117
|
47
|
64
|
131
|
64
|
70
|
85
|
76
|
81
|
98
|
115
|
77
|
72
|
81
|
85
|
50
|
74
|
68
|
|
2026/02
|
109
|
92
|
120
|
99
|
99
|
66
|
60
|
99
|
74
|
88
|
84
|
94
|
92
|
102
|
78
|
34
|
99
|
70
|
59
|
51
|
86
|
215
|
198
|
72
|
45
|
48
|
83
|
76
|
|||
|
2026/01
|
54
|
125
|
131
|
122
|
120
|
41
|
43
|
63
|
58
|
70
|
51
|
73
|
89
|
103
|
83
|
114
|
71
|
65
|
52
|
51
|
84
|
120
|
164
|
177
|
182
|
175
|
214
|
180
|
191
|
109
|
134
|
|
2025/12
|
152
|
70
|
45
|
61
|
102
|
99
|
69
|
78
|
117
|
168
|
149
|
39
|
67
|
82
|
67
|
146
|
142
|
206
|
206
|
176
|
103
|
62
|
88
|
100
|
76
|
99
|
112
|
148
|
88
|
187
|
51
|
|
2025/11
|
59
|
71
|
86
|
96
|
69
|
121
|
83
|
49
|
75
|
85
|
78
|
79
|
78
|
83
|
73
|
81
|
46
|
45
|
40
|
46
|
55
|
56
|
75
|
124
|
81
|
136
|
211
|
139
|
81
|
85
|
|
|
2025/10
|
35
|
17
|
38
|
25
|
17
|
12
|
27
|
30
|
10
|
11
|
31
|
19
|
22
|
53
|
37
|
44
|
14
|
25
|
41
|
37
|
40
|
56
|
70
|
75
|
63
|
83
|
94
|
94
|
92
|
124
|
125
|
|
2025/09
|
40
|
34
|
29
|
15
|
18
|
53
|
61
|
46
|
29
|
34
|
21
|
27
|
46
|
42
|
37
|
29
|
20
|
14
|
11
|
31
|
35
|
10
|
22
|
32
|
50
|
42
|
14
|
25
|
38
|
52
|
|
|
2025/08
|
36
|
27
|
35
|
34
|
47
|
26
|
31
|
30
|
24
|
31
|
36
|
33
|
35
|
27
|
32
|
24
|
28
|
35
|
37
|
28
|
26
|
32
|
31
|
22
|
37
|
35
|
33
|
31
|
31
|
34
|
30
|
|
2025/07
|
17
|
26
|
23
|
32
|
28
|
33
|
39
|
30
|
31
|
46
|
55
|
48
|
47
|
45
|
45
|
42
|
27
|
40
|
47
|
45
|
28
|
25
|
16
|
19
|
28
|
31
|
33
|
32
|
36
|
32
|
33
|
|
2025/06
|
47
|
53
|
54
|
62
|
54
|
59
|
88
|
84
|
65
|
63
|
61
|
48
|
53
|
47
|
53
|
49
|
49
|
31
|
25
|
31
|
42
|
48
|
35
|
43
|
60
|
23
|
37
|
35
|
22
|
29
|
|
|
2025/05
|
71
|
96
|
56
|
53
|
144
|
167
|
158
|
86
|
81
|
43
|
51
|
61
|
72
|
69
|
48
|
74
|
168
|
88
|
120
|
70
|
75
|
70
|
95
|
58
|
61
|
55
|
64
|
62
|
70
|
69
|
56
|
|
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