Air Quality
Excellent
No health implications.
17
PM2.5
20
PM10
94
O3
0.6
CO
4
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 May
56
Good
Sun
24 May
97
Good
Mon
25 May
53
Good
Tue
26 May
58
Good
Wed
27 May
56
Good
Thu
28 May
47
Excellent
Fri
29 May
45
Excellent
Air quality in the last 12 months (Yongji)
|
2026/04
|
107
|
170
|
222
|
46
|
38
|
34
|
36
|
40
|
61
|
56
|
30
|
57
|
51
|
73
|
92
|
77
|
63
|
49
|
64
|
106
|
58
|
42
|
56
|
69
|
65
|
37
|
30
|
39
|
34
|
39
|
|
|
2026/03
|
39
|
77
|
84
|
52
|
54
|
47
|
53
|
52
|
64
|
54
|
74
|
96
|
62
|
107
|
161
|
168
|
157
|
55
|
55
|
83
|
101
|
133
|
111
|
69
|
111
|
190
|
127
|
150
|
117
|
51
|
72
|
|
2026/02
|
77
|
60
|
59
|
107
|
77
|
49
|
55
|
43
|
44
|
87
|
68
|
84
|
119
|
85
|
39
|
46
|
90
|
59
|
44
|
55
|
72
|
130
|
79
|
50
|
52
|
49
|
47
|
35
|
|||
|
2026/01
|
67
|
56
|
85
|
107
|
58
|
40
|
40
|
40
|
70
|
90
|
54
|
41
|
33
|
36
|
64
|
94
|
52
|
63
|
37
|
41
|
46
|
33
|
35
|
48
|
82
|
73
|
66
|
65
|
82
|
76
|
73
|
|
2025/12
|
51
|
32
|
21
|
34
|
29
|
66
|
53
|
28
|
69
|
78
|
44
|
49
|
77
|
108
|
65
|
67
|
88
|
65
|
42
|
29
|
40
|
37
|
42
|
73
|
48
|
57
|
60
|
79
|
28
|
25
|
46
|
|
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
|
|
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