Air Quality
Excellent
No health implications.
3
PM2.5
7
PM10
49
O3
0.7
CO
5
SO2
22
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 May
50
Excellent
Mon
25 May
51
Good
Tue
26 May
54
Good
Wed
27 May
84
Good
Thu
28 May
94
Good
Fri
29 May
103
Light
Sat
30 May
45
Excellent
Air quality in the last 12 months (Runzhou)
|
2026/04
|
81
|
77
|
52
|
61
|
81
|
78
|
44
|
51
|
46
|
54
|
66
|
39
|
31
|
42
|
52
|
44
|
57
|
39
|
45
|
42
|
74
|
31
|
31
|
50
|
65
|
55
|
67
|
41
|
32
|
48
|
|
|
2026/03
|
36
|
34
|
58
|
38
|
51
|
59
|
49
|
42
|
59
|
54
|
65
|
58
|
83
|
84
|
53
|
62
|
69
|
56
|
87
|
107
|
76
|
67
|
60
|
62
|
80
|
94
|
62
|
63
|
68
|
51
|
85
|
|
2026/02
|
69
|
87
|
80
|
86
|
108
|
51
|
40
|
43
|
45
|
59
|
89
|
102
|
90
|
70
|
83
|
29
|
51
|
77
|
59
|
52
|
39
|
122
|
83
|
35
|
58
|
38
|
18
|
43
|
|||
|
2026/01
|
28
|
45
|
50
|
103
|
141
|
157
|
50
|
77
|
75
|
85
|
57
|
65
|
81
|
89
|
95
|
162
|
116
|
58
|
25
|
34
|
50
|
47
|
78
|
105
|
92
|
29
|
60
|
62
|
51
|
34
|
27
|
|
2025/12
|
96
|
54
|
37
|
54
|
70
|
78
|
74
|
83
|
62
|
57
|
109
|
26
|
40
|
63
|
67
|
78
|
111
|
78
|
86
|
132
|
29
|
33
|
44
|
88
|
61
|
31
|
57
|
73
|
96
|
109
|
29
|
|
2025/11
|
147
|
66
|
27
|
51
|
45
|
49
|
65
|
27
|
46
|
54
|
28
|
40
|
70
|
117
|
105
|
66
|
29
|
38
|
50
|
54
|
73
|
101
|
108
|
85
|
77
|
69
|
202
|
151
|
95
|
87
|
|
|
2025/10
|
38
|
41
|
23
|
29
|
59
|
66
|
43
|
30
|
32
|
34
|
60
|
62
|
28
|
22
|
43
|
20
|
32
|
18
|
23
|
24
|
21
|
24
|
30
|
40
|
38
|
37
|
53
|
48
|
35
|
34
|
35
|
|
2025/09
|
27
|
20
|
34
|
45
|
52
|
49
|
37
|
40
|
21
|
28
|
36
|
33
|
19
|
40
|
21
|
42
|
25
|
20
|
29
|
25
|
26
|
26
|
41
|
23
|
15
|
22
|
44
|
34
|
30
|
36
|
|
|
2025/08
|
21
|
20
|
21
|
23
|
37
|
39
|
15
|
21
|
29
|
19
|
14
|
23
|
46
|
18
|
21
|
24
|
32
|
31
|
28
|
31
|
44
|
26
|
21
|
25
|
25
|
19
|
39
|
27
|
39
|
30
|
19
|
|
2025/07
|
30
|
31
|
31
|
43
|
39
|
45
|
29
|
19
|
19
|
49
|
39
|
27
|
29
|
28
|
33
|
36
|
28
|
29
|
21
|
21
|
22
|
19
|
24
|
32
|
30
|
19
|
19
|
18
|
23
|
14
|
11
|
|
2025/06
|
24
|
13
|
40
|
51
|
54
|
45
|
39
|
26
|
31
|
41
|
36
|
43
|
22
|
35
|
20
|
40
|
41
|
47
|
18
|
16
|
13
|
29
|
28
|
25
|
41
|
49
|
28
|
15
|
16
|
31
|
|
|
2025/05
|
56
|
60
|
47
|
42
|
47
|
69
|
77
|
51
|
22
|
39
|
43
|
44
|
51
|
64
|
133
|
49
|
51
|
70
|
63
|
51
|
29
|
48
|
36
|
49
|
56
|
48
|
48
|
53
|
64
|
57
|
66
|
|
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