Air Quality
Excellent
No health implications.
17
PM2.5
25
PM10
43
O3
0.6
CO
5
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 May
38
Excellent
Tue
19 May
41
Excellent
Wed
20 May
42
Excellent
Thu
21 May
52
Good
Fri
22 May
50
Excellent
Sat
23 May
49
Excellent
Sun
24 May
50
Excellent
Air quality in the last 12 months (Macheng)
|
2026/04
|
55
|
52
|
29
|
60
|
68
|
70
|
66
|
44
|
21
|
38
|
54
|
45
|
29
|
23
|
33
|
45
|
54
|
66
|
61
|
51
|
34
|
20
|
22
|
31
|
42
|
43
|
55
|
29
|
27
|
39
|
|
|
2026/03
|
31
|
35
|
63
|
94
|
66
|
68
|
78
|
78
|
85
|
86
|
75
|
82
|
71
|
81
|
107
|
52
|
30
|
46
|
70
|
82
|
74
|
70
|
83
|
75
|
78
|
73
|
66
|
67
|
67
|
45
|
65
|
|
2026/02
|
57
|
77
|
79
|
76
|
87
|
85
|
50
|
66
|
56
|
75
|
88
|
94
|
74
|
95
|
96
|
45
|
123
|
82
|
94
|
66
|
45
|
98
|
107
|
31
|
32
|
24
|
48
|
41
|
|||
|
2026/01
|
33
|
55
|
64
|
66
|
74
|
59
|
48
|
54
|
62
|
84
|
69
|
64
|
88
|
78
|
88
|
105
|
143
|
93
|
22
|
47
|
51
|
63
|
86
|
93
|
104
|
122
|
85
|
73
|
66
|
37
|
46
|
|
2025/12
|
94
|
88
|
62
|
65
|
79
|
82
|
82
|
101
|
99
|
103
|
152
|
76
|
44
|
57
|
57
|
70
|
174
|
177
|
115
|
178
|
65
|
42
|
49
|
84
|
71
|
57
|
65
|
82
|
93
|
136
|
67
|
|
2025/11
|
67
|
78
|
72
|
63
|
75
|
76
|
22
|
39
|
61
|
64
|
51
|
37
|
43
|
73
|
89
|
89
|
44
|
23
|
28
|
44
|
61
|
75
|
85
|
101
|
84
|
65
|
122
|
86
|
70
|
70
|
|
|
2025/10
|
40
|
37
|
19
|
39
|
57
|
53
|
42
|
56
|
60
|
37
|
34
|
40
|
17
|
32
|
44
|
26
|
26
|
13
|
17
|
25
|
24
|
30
|
31
|
36
|
57
|
58
|
58
|
66
|
79
|
72
|
55
|
|
2025/09
|
21
|
30
|
36
|
40
|
39
|
35
|
44
|
38
|
23
|
26
|
23
|
18
|
20
|
25
|
25
|
36
|
27
|
14
|
14
|
14
|
29
|
32
|
20
|
9
|
17
|
14
|
25
|
33
|
19
|
22
|
|
|
2025/08
|
26
|
20
|
28
|
34
|
34
|
26
|
22
|
22
|
24
|
22
|
12
|
17
|
20
|
26
|
21
|
27
|
31
|
32
|
27
|
19
|
18
|
18
|
21
|
29
|
30
|
24
|
29
|
29
|
32
|
25
|
22
|
|
2025/07
|
23
|
24
|
26
|
32
|
43
|
36
|
34
|
35
|
18
|
28
|
40
|
22
|
20
|
29
|
33
|
31
|
33
|
30
|
34
|
24
|
18
|
16
|
17
|
21
|
24
|
25
|
24
|
21
|
21
|
25
|
24
|
|
2025/06
|
16
|
21
|
45
|
53
|
41
|
39
|
26
|
18
|
17
|
22
|
31
|
42
|
36
|
29
|
30
|
46
|
40
|
22
|
13
|
20
|
15
|
13
|
22
|
26
|
37
|
31
|
22
|
20
|
13
|
22
|
|
|
2025/05
|
55
|
61
|
53
|
52
|
44
|
113
|
120
|
46
|
40
|
39
|
40
|
47
|
54
|
70
|
58
|
39
|
74
|
114
|
80
|
43
|
32
|
31
|
57
|
60
|
51
|
67
|
65
|
56
|
42
|
40
|
21
|
|
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