Air Quality
Excellent
No health implications.
10
PM2.5
17
PM10
21
O3
0.6
CO
9
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Jul
51
Good
Mon
28 Jul
55
Good
Tue
29 Jul
53
Good
Wed
30 Jul
56
Good
Thu
31 Jul
52
Good
Fri
1 Aug
18
Excellent
Sat
2 Aug
34
Excellent
Air quality in the last 12 months (Chaling)
|
2025/06
|
16
|
16
|
28
|
30
|
30
|
24
|
22
|
20
|
26
|
28
|
23
|
18
|
25
|
12
|
11
|
20
|
11
|
12
|
12
|
17
|
17
|
12
|
21
|
18
|
28
|
22
|
14
|
16
|
19
|
16
|
|
|
2025/05
|
48
|
52
|
53
|
49
|
31
|
38
|
58
|
31
|
26
|
45
|
42
|
47
|
40
|
34
|
45
|
18
|
16
|
15
|
16
|
15
|
15
|
21
|
20
|
42
|
46
|
44
|
48
|
14
|
15
|
22
|
15
|
|
2025/04
|
50
|
48
|
51
|
65
|
68
|
68
|
62
|
57
|
55
|
45
|
46
|
207
|
176
|
118
|
74
|
64
|
71
|
58
|
22
|
20
|
28
|
26
|
45
|
24
|
22
|
25
|
21
|
34
|
52
|
48
|
|
|
2025/03
|
32
|
28
|
19
|
22
|
29
|
35
|
44
|
40
|
41
|
32
|
38
|
48
|
42
|
17
|
18
|
40
|
48
|
36
|
39
|
43
|
46
|
46
|
60
|
63
|
63
|
66
|
65
|
64
|
45
|
18
|
44
|
|
2025/02
|
27
|
20
|
37
|
47
|
56
|
62
|
52
|
62
|
41
|
45
|
57
|
62
|
82
|
99
|
57
|
35
|
48
|
38
|
28
|
15
|
48
|
20
|
29
|
58
|
90
|
80
|
50
|
40
|
|||
|
2025/01
|
116
|
97
|
135
|
142
|
145
|
100
|
81
|
84
|
60
|
54
|
57
|
66
|
63
|
56
|
84
|
65
|
64
|
64
|
80
|
73
|
83
|
77
|
103
|
174
|
44
|
26
|
47
|
65
|
140
|
84
|
50
|
|
2024/12
|
54
|
58
|
62
|
108
|
57
|
37
|
48
|
67
|
84
|
75
|
51
|
65
|
92
|
65
|
55
|
61
|
63
|
68
|
86
|
102
|
98
|
99
|
88
|
99
|
121
|
120
|
136
|
113
|
78
|
97
|
109
|
|
2024/11
|
52
|
74
|
64
|
62
|
70
|
53
|
49
|
44
|
49
|
61
|
47
|
52
|
53
|
55
|
44
|
56
|
28
|
15
|
23
|
34
|
47
|
46
|
51
|
61
|
43
|
29
|
39
|
42
|
44
|
49
|
|
|
2024/10
|
36
|
40
|
43
|
41
|
42
|
57
|
68
|
52
|
47
|
48
|
55
|
59
|
98
|
94
|
56
|
31
|
34
|
35
|
22
|
25
|
40
|
24
|
33
|
37
|
44
|
60
|
39
|
44
|
56
|
44
|
43
|
|
2024/09
|
34
|
38
|
40
|
34
|
38
|
30
|
21
|
21
|
23
|
25
|
33
|
35
|
27
|
37
|
31
|
37
|
44
|
45
|
41
|
38
|
33
|
33
|
35
|
40
|
43
|
41
|
49
|
46
|
39
|
43
|
|
|
2024/08
|
15
|
16
|
24
|
27
|
27
|
26
|
20
|
24
|
28
|
28
|
25
|
22
|
19
|
23
|
25
|
28
|
28
|
33
|
23
|
28
|
33
|
19
|
20
|
22
|
28
|
26
|
30
|
25
|
26
|
30
|
38
|
|
2024/07
|
15
|
14
|
19
|
13
|
12
|
15
|
16
|
16
|
19
|
20
|
17
|
19
|
16
|
16
|
21
|
15
|
11
|
12
|
15
|
14
|
18
|
20
|
20
|
30
|
31
|
25
|
16
|
11
|
13
|
14
|
14
|
|
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