Air Quality
Excellent
No health implications.
3
PM2.5
6
PM10
30
O3
0.9
CO
4
SO2
21
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Mar
61
Good
Thu
19 Mar
68
Good
Fri
20 Mar
62
Good
Sat
21 Mar
50
Excellent
Sun
22 Mar
48
Excellent
Mon
23 Mar
47
Excellent
Tue
24 Mar
39
Excellent
Kecheng Air quality rank
Air quality in the last 12 months (Kecheng)
|
2026/02
|
46
|
53
|
76
|
80
|
90
|
43
|
28
|
48
|
46
|
51
|
54
|
63
|
71
|
45
|
40
|
19
|
55
|
45
|
47
|
38
|
40
|
47
|
147
|
56
|
28
|
29
|
15
|
19
|
|||
|
2026/01
|
21
|
32
|
85
|
92
|
57
|
55
|
54
|
54
|
55
|
52
|
65
|
66
|
59
|
66
|
64
|
83
|
120
|
121
|
71
|
15
|
43
|
67
|
94
|
102
|
113
|
119
|
26
|
97
|
80
|
35
|
15
|
|
2025/12
|
83
|
141
|
60
|
62
|
64
|
75
|
89
|
100
|
74
|
64
|
75
|
79
|
40
|
45
|
57
|
65
|
85
|
171
|
136
|
92
|
63
|
47
|
57
|
46
|
38
|
55
|
57
|
63
|
65
|
107
|
56
|
|
2025/11
|
45
|
58
|
63
|
35
|
40
|
44
|
37
|
55
|
11
|
49
|
34
|
32
|
44
|
59
|
90
|
79
|
64
|
27
|
33
|
42
|
51
|
69
|
59
|
49
|
71
|
99
|
86
|
90
|
70
|
65
|
|
|
2025/10
|
41
|
36
|
37
|
37
|
38
|
36
|
48
|
56
|
42
|
43
|
49
|
52
|
51
|
24
|
40
|
33
|
38
|
32
|
18
|
27
|
30
|
31
|
35
|
43
|
50
|
55
|
41
|
58
|
46
|
41
|
31
|
|
2025/09
|
33
|
31
|
32
|
36
|
32
|
30
|
28
|
23
|
22
|
18
|
20
|
22
|
28
|
19
|
31
|
33
|
30
|
31
|
24
|
27
|
27
|
33
|
32
|
21
|
28
|
28
|
37
|
37
|
42
|
39
|
|
|
2025/08
|
39
|
44
|
35
|
31
|
24
|
18
|
23
|
28
|
31
|
41
|
40
|
33
|
16
|
16
|
18
|
22
|
23
|
25
|
27
|
26
|
27
|
24
|
21
|
30
|
25
|
30
|
27
|
19
|
24
|
27
|
31
|
|
2025/07
|
13
|
22
|
33
|
41
|
32
|
21
|
21
|
22
|
23
|
28
|
23
|
20
|
23
|
29
|
32
|
44
|
36
|
29
|
23
|
20
|
17
|
24
|
25
|
28
|
28
|
15
|
21
|
17
|
26
|
25
|
28
|
|
2025/06
|
43
|
21
|
16
|
45
|
40
|
36
|
42
|
52
|
26
|
25
|
26
|
26
|
20
|
24
|
13
|
28
|
37
|
23
|
31
|
30
|
28
|
32
|
17
|
14
|
36
|
20
|
24
|
20
|
27
|
27
|
|
|
2025/05
|
49
|
45
|
50
|
46
|
34
|
47
|
116
|
60
|
21
|
45
|
47
|
53
|
50
|
49
|
74
|
50
|
28
|
50
|
45
|
23
|
17
|
33
|
13
|
37
|
69
|
74
|
71
|
48
|
28
|
43
|
49
|
|
2025/04
|
45
|
43
|
75
|
72
|
58
|
61
|
64
|
58
|
60
|
44
|
54
|
102
|
172
|
101
|
62
|
53
|
61
|
61
|
58
|
52
|
71
|
14
|
47
|
33
|
30
|
45
|
41
|
36
|
56
|
57
|
|
|
2025/03
|
50
|
45
|
42
|
14
|
41
|
41
|
62
|
65
|
88
|
104
|
108
|
76
|
13
|
35
|
15
|
34
|
38
|
43
|
56
|
46
|
48
|
50
|
55
|
64
|
65
|
70
|
72
|
62
|
40
|
56
|
46
|
|
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