Air Quality
Excellent
No health implications.
27
PM2.5
44
PM10
51
O3
0.3
CO
4
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 May
85
Good
Tue
13 May
86
Good
Wed
14 May
93
Good
Thu
15 May
48
Excellent
Fri
16 May
51
Good
Sat
17 May
42
Excellent
Sun
18 May
20
Excellent
Air quality in the last 12 months (Chongren)
|
2025/02
|
42
|
30
|
53
|
59
|
53
|
54
|
64
|
50
|
37
|
49
|
67
|
72
|
85
|
69
|
49
|
43
|
54
|
49
|
45
|
27
|
31
|
24
|
32
|
47
|
70
|
68
|
55
|
41
|
|||
|
2025/01
|
108
|
85
|
105
|
107
|
107
|
97
|
68
|
60
|
59
|
45
|
51
|
57
|
63
|
59
|
72
|
57
|
55
|
66
|
67
|
74
|
73
|
69
|
66
|
113
|
57
|
30
|
58
|
85
|
162
|
78
|
58
|
|
2024/12
|
48
|
55
|
58
|
90
|
57
|
46
|
49
|
74
|
55
|
58
|
36
|
60
|
73
|
59
|
57
|
58
|
60
|
68
|
64
|
61
|
68
|
76
|
62
|
74
|
83
|
83
|
109
|
77
|
72
|
80
|
87
|
|
2024/11
|
33
|
41
|
48
|
57
|
60
|
51
|
49
|
49
|
55
|
58
|
47
|
49
|
53
|
54
|
30
|
40
|
41
|
29
|
37
|
47
|
46
|
36
|
54
|
57
|
43
|
39
|
41
|
48
|
48
|
49
|
|
|
2024/10
|
44
|
42
|
39
|
35
|
40
|
40
|
33
|
22
|
31
|
45
|
60
|
55
|
57
|
80
|
56
|
30
|
38
|
45
|
32
|
33
|
45
|
45
|
40
|
49
|
54
|
55
|
24
|
27
|
53
|
53
|
44
|
|
2024/09
|
45
|
49
|
52
|
46
|
43
|
35
|
26
|
30
|
27
|
32
|
39
|
25
|
32
|
39
|
38
|
35
|
37
|
38
|
36
|
31
|
30
|
35
|
34
|
31
|
40
|
44
|
47
|
34
|
38
|
36
|
|
|
2024/08
|
21
|
27
|
32
|
40
|
29
|
36
|
34
|
32
|
36
|
40
|
38
|
25
|
25
|
27
|
33
|
36
|
32
|
24
|
25
|
32
|
28
|
25
|
32
|
41
|
37
|
35
|
38
|
23
|
28
|
43
|
46
|
|
2024/07
|
24
|
24
|
24
|
24
|
27
|
23
|
22
|
20
|
29
|
29
|
33
|
30
|
26
|
23
|
29
|
31
|
22
|
23
|
22
|
22
|
25
|
26
|
33
|
42
|
35
|
23
|
19
|
19
|
19
|
21
|
23
|
|
2024/06
|
24
|
24
|
27
|
35
|
31
|
34
|
35
|
38
|
36
|
31
|
21
|
25
|
26
|
22
|
22
|
23
|
23
|
29
|
34
|
29
|
27
|
28
|
33
|
26
|
18
|
21
|
27
|
30
|
24
|
26
|
|
|
2024/05
|
24
|
37
|
44
|
27
|
24
|
32
|
44
|
51
|
53
|
51
|
47
|
52
|
60
|
50
|
48
|
61
|
51
|
50
|
49
|
35
|
27
|
29
|
37
|
25
|
22
|
28
|
29
|
28
|
35
|
42
|
26
|
|
2024/04
|
33
|
36
|
31
|
39
|
33
|
34
|
37
|
50
|
35
|
40
|
49
|
50
|
48
|
50
|
52
|
43
|
24
|
28
|
24
|
25
|
33
|
35
|
42
|
48
|
39
|
39
|
39
|
30
|
32
|
20
|
|
|
2024/03
|
36
|
45
|
34
|
45
|
31
|
42
|
58
|
58
|
56
|
59
|
56
|
46
|
56
|
44
|
36
|
27
|
38
|
33
|
43
|
64
|
61
|
49
|
40
|
38
|
33
|
29
|
37
|
31
|
38
|
44
|
31
|
|
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