Air Quality
Excellent
No health implications.
13
PM2.5
38
PM10
104
O3
0.4
CO
7
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
25 Apr
86
Good
Sun
26 Apr
91
Good
Mon
27 Apr
90
Good
Tue
28 Apr
91
Good
Wed
29 Apr
81
Good
Thu
30 Apr
16
Excellent
Fri
1 May
28
Excellent
Air quality in the last 12 months (Ruzhou)
|
2026/03
|
46
|
60
|
91
|
133
|
91
|
97
|
71
|
76
|
124
|
140
|
167
|
145
|
155
|
140
|
49
|
75
|
114
|
71
|
77
|
84
|
87
|
111
|
109
|
84
|
69
|
82
|
71
|
66
|
71
|
79
|
80
|
|
2026/02
|
100
|
76
|
135
|
91
|
91
|
73
|
64
|
94
|
88
|
92
|
94
|
98
|
94
|
82
|
78
|
37
|
66
|
57
|
57
|
59
|
87
|
238
|
233
|
59
|
49
|
44
|
72
|
63
|
|||
|
2026/01
|
74
|
126
|
122
|
94
|
61
|
42
|
48
|
63
|
59
|
83
|
71
|
76
|
86
|
92
|
78
|
108
|
96
|
69
|
62
|
78
|
114
|
124
|
148
|
197
|
167
|
178
|
176
|
164
|
175
|
138
|
123
|
|
2025/12
|
160
|
110
|
65
|
86
|
105
|
103
|
84
|
96
|
150
|
159
|
146
|
56
|
91
|
75
|
71
|
114
|
153
|
172
|
148
|
88
|
122
|
85
|
105
|
92
|
64
|
103
|
101
|
112
|
71
|
170
|
78
|
|
2025/11
|
55
|
67
|
106
|
128
|
109
|
97
|
48
|
39
|
81
|
100
|
95
|
83
|
83
|
95
|
90
|
87
|
33
|
35
|
42
|
49
|
57
|
66
|
74
|
138
|
93
|
130
|
224
|
114
|
85
|
90
|
|
|
2025/10
|
22
|
12
|
36
|
38
|
17
|
17
|
28
|
39
|
13
|
17
|
34
|
32
|
35
|
63
|
50
|
56
|
18
|
31
|
52
|
42
|
44
|
67
|
88
|
124
|
106
|
66
|
118
|
113
|
126
|
125
|
116
|
|
2025/09
|
35
|
43
|
35
|
17
|
17
|
49
|
49
|
26
|
28
|
44
|
12
|
26
|
41
|
41
|
42
|
31
|
35
|
18
|
12
|
23
|
43
|
15
|
11
|
20
|
42
|
37
|
22
|
17
|
25
|
33
|
|
|
2025/08
|
38
|
34
|
39
|
41
|
43
|
22
|
26
|
26
|
19
|
30
|
27
|
40
|
41
|
34
|
34
|
22
|
31
|
40
|
30
|
28
|
28
|
39
|
35
|
31
|
47
|
46
|
34
|
33
|
22
|
24
|
25
|
|
2025/07
|
15
|
20
|
20
|
25
|
23
|
34
|
36
|
37
|
30
|
40
|
52
|
49
|
41
|
38
|
34
|
47
|
38
|
45
|
47
|
41
|
28
|
30
|
16
|
23
|
32
|
33
|
32
|
32
|
35
|
34
|
37
|
|
2025/06
|
48
|
50
|
49
|
51
|
50
|
54
|
60
|
62
|
60
|
68
|
68
|
59
|
53
|
46
|
50
|
60
|
56
|
22
|
25
|
38
|
44
|
54
|
45
|
52
|
52
|
27
|
36
|
27
|
26
|
28
|
|
|
2025/05
|
74
|
99
|
65
|
65
|
127
|
203
|
174
|
102
|
99
|
52
|
49
|
59
|
66
|
71
|
61
|
66
|
162
|
106
|
104
|
70
|
88
|
70
|
85
|
68
|
63
|
61
|
91
|
88
|
89
|
59
|
45
|
|
2025/04
|
69
|
65
|
73
|
90
|
76
|
90
|
75
|
92
|
110
|
106
|
98
|
272
|
101
|
81
|
60
|
105
|
104
|
89
|
70
|
83
|
67
|
138
|
125
|
77
|
89
|
78
|
74
|
56
|
57
|
103
|
|
|
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