Air Quality
Excellent
No health implications.
28
PM2.5
40
PM10
101
O3
0.7
CO
5
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Apr
63
Good
Tue
30 Apr
60
Good
Wed
1 May
74
Good
Thu
2 May
82
Good
Fri
3 May
60
Good
Sat
4 May
48
Excellent
Sun
5 May
59
Good
Air quality in the last 12 months (Macheng)
|
2024/02
|
46
|
47
|
73
|
97
|
87
|
103
|
114
|
113
|
122
|
221
|
130
|
72
|
52
|
58
|
63
|
36
|
38
|
44
|
77
|
18
|
37
|
53
|
53
|
74
|
84
|
87
|
86
|
97
|
78
|
||
|
2024/01
|
148
|
124
|
75
|
73
|
81
|
120
|
139
|
132
|
153
|
163
|
139
|
115
|
101
|
184
|
117
|
49
|
37
|
48
|
33
|
62
|
76
|
52
|
35
|
47
|
64
|
73
|
86
|
79
|
86
|
99
|
132
|
|
2023/12
|
50
|
58
|
72
|
89
|
95
|
101
|
76
|
67
|
68
|
74
|
34
|
55
|
54
|
18
|
33
|
40
|
40
|
36
|
53
|
97
|
63
|
56
|
64
|
85
|
92
|
83
|
185
|
231
|
253
|
213
|
114
|
|
2023/11
|
74
|
63
|
91
|
99
|
68
|
40
|
47
|
46
|
63
|
55
|
42
|
60
|
70
|
72
|
77
|
83
|
98
|
81
|
70
|
72
|
64
|
70
|
77
|
57
|
56
|
74
|
87
|
90
|
84
|
52
|
|
|
2023/10
|
48
|
38
|
23
|
35
|
49
|
42
|
32
|
25
|
36
|
46
|
55
|
55
|
66
|
72
|
76
|
69
|
60
|
72
|
63
|
34
|
44
|
59
|
62
|
68
|
85
|
120
|
128
|
169
|
126
|
114
|
97
|
|
2023/09
|
41
|
42
|
50
|
49
|
35
|
29
|
34
|
46
|
58
|
58
|
49
|
34
|
30
|
29
|
37
|
48
|
47
|
47
|
42
|
24
|
25
|
25
|
18
|
25
|
21
|
30
|
42
|
47
|
51
|
26
|
|
|
2023/08
|
31
|
30
|
35
|
49
|
49
|
40
|
33
|
36
|
40
|
40
|
53
|
50
|
33
|
38
|
40
|
54
|
53
|
45
|
54
|
42
|
39
|
36
|
50
|
54
|
53
|
64
|
27
|
26
|
36
|
38
|
45
|
|
2023/07
|
39
|
38
|
36
|
29
|
34
|
33
|
29
|
27
|
25
|
32
|
37
|
43
|
38
|
30
|
46
|
55
|
42
|
28
|
26
|
25
|
26
|
21
|
33
|
40
|
44
|
33
|
25
|
21
|
16
|
24
|
29
|
|
2023/06
|
48
|
62
|
47
|
53
|
27
|
35
|
48
|
54
|
56
|
66
|
72
|
81
|
53
|
62
|
71
|
52
|
38
|
38
|
20
|
43
|
53
|
40
|
36
|
39
|
31
|
41
|
37
|
32
|
30
|
30
|
|
|
2023/05
|
78
|
63
|
42
|
36
|
25
|
40
|
46
|
49
|
54
|
48
|
51
|
61
|
61
|
71
|
74
|
62
|
28
|
44
|
59
|
65
|
66
|
61
|
68
|
44
|
49
|
34
|
33
|
40
|
30
|
28
|
32
|
|
2023/04
|
73
|
71
|
36
|
27
|
29
|
48
|
75
|
68
|
66
|
69
|
174
|
354
|
99
|
76
|
129
|
84
|
74
|
56
|
68
|
76
|
60
|
49
|
27
|
29
|
42
|
44
|
44
|
52
|
145
|
105
|
|
|
2023/03
|
121
|
118
|
103
|
104
|
93
|
75
|
77
|
86
|
87
|
79
|
75
|
108
|
69
|
76
|
111
|
116
|
28
|
40
|
59
|
68
|
59
|
78
|
247
|
125
|
54
|
73
|
93
|
91
|
94
|
85
|
71
|
|
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