Air Quality
Excellent
No health implications.
32
PM2.5
47
PM10
154
O3
0.4
CO
5
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 May
90
Good
Sun
25 May
101
Light
Mon
26 May
101
Light
Tue
27 May
112
Light
Wed
28 May
110
Light
Thu
29 May
113
Light
Fri
30 May
30
Excellent
Air quality in the last 12 months (Zhengyang)
|
2025/04
|
63
|
61
|
56
|
81
|
70
|
73
|
69
|
69
|
87
|
85
|
56
|
212
|
121
|
71
|
50
|
65
|
71
|
69
|
49
|
58
|
53
|
59
|
85
|
89
|
65
|
61
|
62
|
50
|
45
|
61
|
|
|
2025/03
|
93
|
68
|
38
|
47
|
64
|
77
|
80
|
74
|
92
|
93
|
74
|
106
|
113
|
47
|
58
|
51
|
38
|
51
|
46
|
42
|
34
|
54
|
57
|
66
|
48
|
65
|
114
|
132
|
81
|
67
|
73
|
|
2025/02
|
99
|
104
|
138
|
67
|
58
|
46
|
94
|
58
|
55
|
65
|
81
|
97
|
77
|
74
|
72
|
78
|
83
|
80
|
110
|
81
|
75
|
97
|
121
|
78
|
73
|
92
|
84
|
84
|
|||
|
2025/01
|
111
|
156
|
146
|
216
|
92
|
74
|
60
|
60
|
53
|
61
|
73
|
72
|
86
|
127
|
63
|
59
|
68
|
86
|
112
|
120
|
122
|
224
|
122
|
86
|
79
|
72
|
54
|
102
|
184
|
137
|
124
|
|
2024/12
|
59
|
83
|
76
|
96
|
70
|
60
|
98
|
54
|
68
|
89
|
108
|
112
|
85
|
60
|
51
|
65
|
95
|
75
|
57
|
76
|
78
|
59
|
83
|
110
|
104
|
160
|
159
|
49
|
68
|
87
|
82
|
|
2024/11
|
121
|
101
|
87
|
77
|
61
|
74
|
59
|
57
|
68
|
79
|
89
|
88
|
76
|
105
|
111
|
70
|
36
|
41
|
39
|
50
|
50
|
75
|
84
|
58
|
52
|
41
|
60
|
51
|
38
|
53
|
|
|
2024/10
|
44
|
67
|
57
|
52
|
61
|
34
|
50
|
79
|
55
|
91
|
101
|
101
|
135
|
65
|
63
|
103
|
45
|
20
|
41
|
47
|
56
|
46
|
51
|
51
|
63
|
90
|
128
|
126
|
90
|
72
|
55
|
|
2024/09
|
36
|
42
|
35
|
41
|
50
|
40
|
55
|
54
|
49
|
51
|
38
|
27
|
29
|
53
|
53
|
50
|
49
|
29
|
26
|
54
|
33
|
36
|
54
|
55
|
56
|
58
|
55
|
53
|
56
|
42
|
|
|
2024/08
|
13
|
13
|
20
|
20
|
21
|
14
|
18
|
25
|
28
|
43
|
83
|
30
|
35
|
40
|
30
|
25
|
31
|
39
|
25
|
21
|
23
|
34
|
34
|
36
|
35
|
35
|
21
|
26
|
32
|
31
|
33
|
|
2024/07
|
40
|
22
|
29
|
13
|
23
|
19
|
21
|
26
|
15
|
39
|
34
|
24
|
29
|
29
|
21
|
35
|
28
|
14
|
19
|
17
|
20
|
21
|
24
|
31
|
34
|
33
|
16
|
9
|
12
|
16
|
14
|
|
2024/06
|
72
|
62
|
52
|
53
|
47
|
47
|
37
|
49
|
50
|
41
|
40
|
43
|
36
|
43
|
61
|
55
|
45
|
52
|
49
|
30
|
25
|
29
|
36
|
99
|
84
|
54
|
49
|
13
|
11
|
20
|
|
|
2024/05
|
55
|
50
|
47
|
50
|
49
|
45
|
57
|
56
|
52
|
56
|
131
|
126
|
97
|
75
|
108
|
43
|
65
|
59
|
61
|
61
|
56
|
51
|
48
|
45
|
61
|
52
|
56
|
50
|
56
|
66
|
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