Air Quality
Excellent
No health implications.
18
PM2.5
23
PM10
52
O3
0.5
CO
9
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Dec
98
Good
Sat
20 Dec
55
Good
Sun
21 Dec
57
Good
Mon
22 Dec
59
Good
Tue
23 Dec
61
Good
Wed
24 Dec
59
Good
Thu
25 Dec
18
Excellent
Air quality in the last 12 months (Yongji)
|
2025/11
|
58
|
38
|
47
|
67
|
100
|
107
|
52
|
80
|
34
|
49
|
153
|
106
|
42
|
118
|
181
|
52
|
108
|
50
|
36
|
40
|
55
|
57
|
132
|
282
|
490
|
258
|
67
|
43
|
38
|
47
|
|
|
2025/10
|
42
|
52
|
33
|
26
|
17
|
19
|
23
|
22
|
34
|
35
|
20
|
38
|
121
|
243
|
75
|
65
|
61
|
31
|
23
|
24
|
36
|
45
|
60
|
70
|
73
|
44
|
30
|
91
|
172
|
43
|
44
|
|
2025/09
|
17
|
28
|
26
|
28
|
30
|
19
|
18
|
17
|
20
|
21
|
26
|
37
|
41
|
28
|
18
|
25
|
22
|
23
|
22
|
25
|
26
|
23
|
31
|
24
|
29
|
23
|
27
|
29
|
33
|
31
|
|
|
2025/08
|
20
|
24
|
17
|
16
|
17
|
20
|
14
|
20
|
19
|
14
|
21
|
27
|
25
|
23
|
30
|
23
|
16
|
20
|
31
|
21
|
17
|
17
|
23
|
15
|
14
|
21
|
26
|
18
|
16
|
29
|
26
|
|
2025/07
|
19
|
17
|
17
|
18
|
23
|
16
|
24
|
30
|
36
|
30
|
30
|
34
|
28
|
22
|
18
|
11
|
18
|
16
|
19
|
22
|
17
|
19
|
15
|
15
|
23
|
29
|
19
|
21
|
19
|
13
|
17
|
|
2025/06
|
35
|
42
|
21
|
28
|
25
|
31
|
28
|
27
|
36
|
19
|
22
|
22
|
30
|
33
|
29
|
19
|
37
|
29
|
33
|
27
|
13
|
20
|
27
|
38
|
41
|
32
|
52
|
30
|
36
|
31
|
|
|
2025/05
|
29
|
19
|
23
|
22
|
29
|
26
|
45
|
46
|
48
|
29
|
37
|
47
|
47
|
46
|
39
|
31
|
24
|
31
|
24
|
30
|
47
|
43
|
29
|
32
|
30
|
34
|
42
|
34
|
40
|
39
|
52
|
|
2025/04
|
67
|
57
|
58
|
52
|
31
|
52
|
43
|
65
|
67
|
88
|
84
|
35
|
11
|
30
|
30
|
39
|
57
|
46
|
29
|
69
|
116
|
29
|
28
|
74
|
36
|
60
|
58
|
60
|
70
|
57
|
|
|
2025/03
|
70
|
27
|
43
|
35
|
46
|
68
|
63
|
69
|
89
|
76
|
65
|
96
|
47
|
40
|
40
|
52
|
78
|
78
|
69
|
83
|
59
|
73
|
68
|
83
|
101
|
67
|
41
|
20
|
32
|
37
|
62
|
|
2025/02
|
108
|
123
|
74
|
48
|
65
|
59
|
51
|
37
|
42
|
57
|
69
|
48
|
54
|
60
|
69
|
43
|
27
|
29
|
33
|
37
|
39
|
44
|
49
|
35
|
82
|
56
|
70
|
111
|
|||
|
2025/01
|
35
|
33
|
34
|
60
|
99
|
110
|
71
|
67
|
61
|
76
|
102
|
110
|
83
|
61
|
28
|
49
|
42
|
54
|
68
|
144
|
112
|
127
|
96
|
92
|
118
|
85
|
47
|
74
|
78
|
46
|
72
|
|
2024/12
|
50
|
19
|
17
|
20
|
24
|
39
|
39
|
41
|
55
|
63
|
46
|
41
|
61
|
39
|
26
|
36
|
40
|
49
|
59
|
66
|
76
|
37
|
52
|
35
|
49
|
35
|
31
|
28
|
38
|
52
|
38
|
|
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