Air Quality
Excellent
No health implications.
17
PM2.5
25
PM10
71
O3
0.8
CO
2
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 May
55
Good
Sat
24 May
87
Good
Sun
25 May
88
Good
Mon
26 May
94
Good
Tue
27 May
92
Good
Wed
28 May
59
Good
Thu
29 May
24
Excellent
Air quality in the last 12 months (Ruichang)
|
2025/04
|
65
|
58
|
63
|
66
|
70
|
66
|
63
|
64
|
65
|
55
|
50
|
188
|
110
|
105
|
49
|
55
|
68
|
70
|
74
|
67
|
36
|
40
|
56
|
44
|
46
|
39
|
36
|
53
|
54
|
55
|
|
|
2025/03
|
44
|
35
|
20
|
40
|
55
|
61
|
66
|
68
|
89
|
79
|
61
|
63
|
57
|
53
|
23
|
47
|
33
|
45
|
40
|
43
|
42
|
53
|
68
|
72
|
62
|
78
|
64
|
60
|
60
|
67
|
61
|
|
2025/02
|
54
|
40
|
74
|
59
|
54
|
44
|
70
|
40
|
38
|
62
|
66
|
103
|
85
|
57
|
65
|
58
|
64
|
68
|
52
|
58
|
47
|
44
|
78
|
93
|
103
|
78
|
74
|
50
|
|||
|
2025/01
|
114
|
113
|
185
|
138
|
96
|
80
|
59
|
75
|
53
|
43
|
64
|
77
|
79
|
76
|
66
|
52
|
68
|
73
|
85
|
120
|
103
|
97
|
192
|
125
|
43
|
39
|
51
|
67
|
143
|
70
|
73
|
|
2024/12
|
56
|
62
|
126
|
121
|
59
|
62
|
79
|
86
|
57
|
80
|
59
|
110
|
90
|
57
|
58
|
58
|
75
|
105
|
47
|
68
|
106
|
55
|
83
|
105
|
120
|
135
|
132
|
82
|
66
|
88
|
108
|
|
2024/11
|
43
|
56
|
64
|
86
|
55
|
48
|
45
|
52
|
55
|
61
|
50
|
57
|
71
|
65
|
60
|
74
|
28
|
25
|
37
|
50
|
50
|
53
|
84
|
54
|
47
|
37
|
45
|
53
|
49
|
50
|
|
|
2024/10
|
22
|
43
|
28
|
29
|
37
|
32
|
18
|
34
|
50
|
66
|
71
|
76
|
106
|
94
|
72
|
47
|
33
|
47
|
21
|
32
|
50
|
40
|
45
|
48
|
51
|
44
|
21
|
67
|
110
|
64
|
45
|
|
2024/09
|
41
|
46
|
44
|
45
|
45
|
39
|
45
|
48
|
47
|
35
|
31
|
20
|
35
|
44
|
33
|
28
|
41
|
40
|
35
|
32
|
32
|
30
|
26
|
35
|
50
|
53
|
55
|
33
|
42
|
49
|
|
|
2024/08
|
19
|
21
|
33
|
30
|
38
|
29
|
39
|
36
|
36
|
32
|
39
|
60
|
31
|
20
|
28
|
31
|
46
|
31
|
24
|
25
|
27
|
35
|
36
|
37
|
42
|
44
|
37
|
19
|
35
|
41
|
39
|
|
2024/07
|
17
|
13
|
25
|
18
|
20
|
20
|
20
|
19
|
26
|
33
|
31
|
31
|
33
|
38
|
34
|
39
|
20
|
23
|
20
|
19
|
22
|
26
|
34
|
38
|
31
|
29
|
14
|
11
|
12
|
21
|
18
|
|
2024/06
|
24
|
43
|
25
|
26
|
27
|
37
|
32
|
32
|
31
|
26
|
21
|
27
|
30
|
32
|
30
|
28
|
31
|
22
|
15
|
21
|
34
|
18
|
18
|
22
|
17
|
28
|
15
|
20
|
24
|
16
|
|
|
2024/05
|
31
|
35
|
39
|
26
|
24
|
27
|
42
|
51
|
60
|
63
|
53
|
88
|
85
|
52
|
59
|
55
|
59
|
58
|
58
|
40
|
29
|
19
|
28
|
34
|
33
|
31
|
20
|
25
|
29
|
35
|
25
|
|
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