Air Quality
Excellent
No health implications.
22
PM2.5
40
PM10
28
O3
0.4
CO
2
SO2
33
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Jul
75
Good
Mon
21 Jul
54
Good
Tue
22 Jul
55
Good
Wed
23 Jul
78
Good
Thu
24 Jul
88
Good
Fri
25 Jul
99
Good
Sat
26 Jul
21
Excellent
Air quality in the last 12 months (Yanzhou)
|
2025/06
|
54
|
47
|
48
|
56
|
65
|
63
|
60
|
51
|
59
|
44
|
66
|
49
|
49
|
43
|
28
|
35
|
46
|
44
|
26
|
23
|
34
|
37
|
41
|
42
|
54
|
35
|
30
|
33
|
14
|
19
|
|
|
2025/05
|
58
|
72
|
46
|
58
|
42
|
70
|
57
|
52
|
18
|
33
|
64
|
55
|
50
|
58
|
44
|
72
|
83
|
66
|
80
|
61
|
60
|
58
|
59
|
55
|
45
|
52
|
57
|
57
|
56
|
57
|
61
|
|
2025/04
|
75
|
43
|
56
|
75
|
76
|
75
|
86
|
86
|
74
|
79
|
68
|
152
|
59
|
57
|
59
|
85
|
97
|
95
|
42
|
59
|
40
|
59
|
77
|
70
|
75
|
73
|
71
|
66
|
61
|
85
|
|
|
2025/03
|
107
|
27
|
41
|
46
|
77
|
80
|
84
|
90
|
86
|
97
|
108
|
146
|
99
|
65
|
79
|
45
|
57
|
46
|
66
|
69
|
65
|
73
|
102
|
109
|
151
|
105
|
117
|
148
|
49
|
62
|
83
|
|
2025/02
|
81
|
149
|
105
|
51
|
51
|
77
|
58
|
44
|
69
|
72
|
75
|
132
|
105
|
87
|
108
|
85
|
62
|
78
|
62
|
63
|
108
|
85
|
65
|
48
|
78
|
117
|
120
|
126
|
|||
|
2025/01
|
136
|
132
|
88
|
138
|
176
|
58
|
59
|
56
|
51
|
55
|
102
|
118
|
106
|
121
|
58
|
75
|
85
|
122
|
134
|
108
|
168
|
185
|
117
|
100
|
108
|
81
|
47
|
92
|
224
|
118
|
112
|
|
2024/12
|
111
|
101
|
75
|
126
|
145
|
179
|
88
|
59
|
74
|
108
|
88
|
82
|
85
|
78
|
82
|
108
|
108
|
44
|
67
|
94
|
54
|
58
|
83
|
107
|
164
|
112
|
69
|
66
|
76
|
94
|
113
|
|
2024/11
|
158
|
65
|
100
|
63
|
51
|
66
|
58
|
55
|
58
|
77
|
92
|
94
|
112
|
78
|
74
|
76
|
54
|
49
|
48
|
65
|
98
|
80
|
63
|
66
|
47
|
45
|
50
|
58
|
66
|
76
|
|
|
2024/10
|
34
|
27
|
47
|
61
|
55
|
49
|
49
|
49
|
76
|
84
|
61
|
78
|
73
|
84
|
96
|
98
|
51
|
13
|
33
|
35
|
53
|
65
|
59
|
68
|
84
|
84
|
148
|
55
|
81
|
132
|
141
|
|
2024/09
|
46
|
29
|
29
|
46
|
37
|
27
|
50
|
46
|
38
|
45
|
29
|
40
|
48
|
48
|
39
|
47
|
34
|
23
|
34
|
34
|
20
|
40
|
44
|
58
|
64
|
80
|
81
|
44
|
43
|
32
|
|
|
2024/08
|
22
|
24
|
31
|
29
|
17
|
14
|
31
|
20
|
37
|
53
|
87
|
42
|
34
|
42
|
40
|
49
|
40
|
30
|
19
|
32
|
44
|
45
|
44
|
52
|
52
|
40
|
15
|
33
|
42
|
45
|
49
|
|
2024/07
|
30
|
44
|
41
|
22
|
28
|
21
|
22
|
25
|
41
|
75
|
74
|
66
|
70
|
48
|
36
|
19
|
22
|
49
|
26
|
19
|
32
|
32
|
40
|
44
|
35
|
20
|
17
|
12
|
20
|
27
|
26
|
|
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