Air Quality
Light
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
59
PM2.5
226
*
PM10
54
O3
0.5
CO
7
SO2
15
NO2
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
Advise
Children, seniors and individuals with respiratory or heart diseases should reduce sustained and high-intensity outdoor exercises.
Air Quality
Today
12 Mar
145
Light
Thu
13 Mar
100
Good
Fri
14 Mar
70
Good
Sat
15 Mar
68
Good
Sun
16 Mar
66
Good
Mon
17 Mar
23
Excellent
Tue
18 Mar
48
Excellent
Air quality in the last 12 months (Cheng County)
|
2025/01
|
78
|
63
|
67
|
74
|
70
|
78
|
68
|
59
|
55
|
58
|
54
|
59
|
61
|
66
|
52
|
59
|
68
|
67
|
69
|
70
|
72
|
85
|
117
|
100
|
65
|
71
|
71
|
85
|
132
|
110
|
87
|
|
2024/12
|
63
|
73
|
70
|
59
|
54
|
58
|
54
|
51
|
40
|
51
|
62
|
56
|
43
|
50
|
61
|
68
|
70
|
60
|
53
|
65
|
68
|
58
|
53
|
58
|
59
|
60
|
56
|
55
|
72
|
63
|
55
|
|
2024/11
|
33
|
28
|
42
|
45
|
39
|
36
|
42
|
42
|
43
|
45
|
43
|
47
|
40
|
30
|
38
|
42
|
33
|
18
|
26
|
38
|
39
|
36
|
43
|
31
|
36
|
50
|
54
|
57
|
54
|
62
|
|
|
2024/10
|
25
|
26
|
29
|
27
|
33
|
38
|
39
|
39
|
35
|
31
|
36
|
26
|
27
|
29
|
26
|
34
|
32
|
37
|
31
|
20
|
28
|
36
|
41
|
42
|
43
|
30
|
27
|
34
|
38
|
36
|
30
|
|
2024/09
|
22
|
34
|
33
|
25
|
16
|
27
|
23
|
28
|
21
|
22
|
28
|
29
|
26
|
25
|
35
|
32
|
27
|
31
|
31
|
28
|
24
|
29
|
33
|
36
|
29
|
25
|
50
|
59
|
30
|
20
|
|
|
2024/08
|
30
|
35
|
21
|
19
|
20
|
24
|
23
|
24
|
50
|
57
|
47
|
34
|
33
|
32
|
18
|
26
|
30
|
24
|
26
|
25
|
30
|
35
|
37
|
39
|
35
|
28
|
25
|
26
|
29
|
28
|
28
|
|
2024/07
|
22
|
26
|
18
|
19
|
29
|
35
|
19
|
16
|
24
|
25
|
24
|
22
|
25
|
24
|
16
|
15
|
16
|
19
|
18
|
18
|
13
|
23
|
21
|
56
|
70
|
56
|
48
|
38
|
27
|
29
|
27
|
|
2024/06
|
45
|
28
|
33
|
24
|
27
|
26
|
21
|
27
|
27
|
30
|
30
|
31
|
34
|
38
|
37
|
22
|
21
|
20
|
21
|
23
|
19
|
29
|
29
|
32
|
30
|
25
|
18
|
23
|
31
|
34
|
|
|
2024/05
|
25
|
24
|
21
|
28
|
39
|
46
|
44
|
37
|
30
|
40
|
62
|
60
|
55
|
51
|
45
|
49
|
49
|
48
|
29
|
33
|
28
|
34
|
38
|
39
|
31
|
32
|
40
|
37
|
29
|
42
|
62
|
|
2024/04
|
34
|
83
|
69
|
62
|
48
|
45
|
38
|
34
|
36
|
24
|
31
|
35
|
37
|
42
|
71
|
67
|
38
|
32
|
60
|
91
|
65
|
53
|
52
|
63
|
42
|
36
|
27
|
30
|
30
|
24
|
|
|
2024/03
|
47
|
40
|
43
|
47
|
64
|
65
|
83
|
71
|
54
|
46
|
55
|
50
|
37
|
39
|
34
|
156
|
78
|
66
|
71
|
61
|
54
|
51
|
77
|
44
|
34
|
41
|
46
|
48
|
40
|
54
|
44
|
|
2024/02
|
76
|
34
|
43
|
56
|
56
|
61
|
65
|
71
|
97
|
150
|
64
|
72
|
67
|
60
|
40
|
42
|
42
|
136
|
377
|
192
|
59
|
57
|
47
|
81
|
75
|
63
|
60
|
66
|
61
|
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22
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23
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24
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27
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28
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29
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30
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31
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- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
Air quality source: CNEMC
*: primary pollution