Air Quality
Excellent
No health implications.
13
PM2.5
21
PM10
119
O3
0.2
CO
12
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
1 Jun
97
Good
Mon
2 Jun
97
Good
Tue
3 Jun
95
Good
Wed
4 Jun
87
Good
Thu
5 Jun
87
Good
Fri
6 Jun
86
Good
Sat
7 Jun
99
Good
Air quality in the last 12 months (Yongchang)
|
2025/04
|
128
|
103
|
160
|
77
|
91
|
105
|
107
|
139
|
60
|
64
|
273
|
289
|
43
|
40
|
100
|
96
|
144
|
149
|
93
|
99
|
68
|
50
|
38
|
51
|
58
|
36
|
64
|
63
|
119
|
112
|
|
|
2025/03
|
63
|
37
|
70
|
63
|
36
|
64
|
108
|
67
|
202
|
99
|
219
|
86
|
60
|
35
|
30
|
46
|
51
|
45
|
62
|
71
|
65
|
74
|
113
|
192
|
302
|
201
|
68
|
68
|
50
|
55
|
119
|
|
2025/02
|
56
|
45
|
49
|
29
|
35
|
39
|
110
|
70
|
81
|
52
|
127
|
86
|
71
|
50
|
74
|
79
|
66
|
69
|
75
|
64
|
68
|
64
|
45
|
69
|
63
|
61
|
54
|
61
|
|||
|
2025/01
|
73
|
66
|
70
|
84
|
60
|
57
|
59
|
65
|
76
|
64
|
87
|
174
|
183
|
33
|
53
|
93
|
96
|
75
|
51
|
54
|
58
|
67
|
70
|
77
|
66
|
92
|
105
|
97
|
119
|
43
|
46
|
|
2024/12
|
37
|
57
|
54
|
57
|
57
|
49
|
41
|
70
|
85
|
45
|
78
|
60
|
64
|
57
|
64
|
53
|
51
|
57
|
61
|
56
|
56
|
69
|
97
|
69
|
59
|
54
|
43
|
68
|
72
|
65
|
53
|
|
2024/11
|
55
|
47
|
67
|
58
|
71
|
81
|
81
|
86
|
76
|
75
|
62
|
54
|
46
|
78
|
119
|
48
|
65
|
61
|
59
|
56
|
74
|
78
|
76
|
59
|
34
|
51
|
83
|
40
|
47
|
41
|
|
|
2024/10
|
34
|
25
|
42
|
45
|
48
|
35
|
46
|
50
|
51
|
46
|
50
|
36
|
50
|
59
|
63
|
68
|
60
|
55
|
96
|
59
|
43
|
45
|
39
|
47
|
40
|
44
|
42
|
44
|
42
|
50
|
50
|
|
2024/09
|
24
|
30
|
56
|
12
|
18
|
27
|
22
|
52
|
27
|
38
|
33
|
26
|
21
|
41
|
51
|
34
|
37
|
41
|
55
|
20
|
25
|
47
|
40
|
163
|
50
|
31
|
57
|
69
|
27
|
21
|
|
|
2024/08
|
32
|
25
|
22
|
23
|
34
|
45
|
33
|
114
|
73
|
25
|
32
|
37
|
48
|
38
|
26
|
28
|
40
|
28
|
27
|
39
|
33
|
56
|
46
|
69
|
74
|
75
|
33
|
41
|
38
|
102
|
104
|
|
2024/07
|
18
|
29
|
34
|
83
|
46
|
40
|
32
|
64
|
75
|
66
|
51
|
47
|
38
|
36
|
31
|
29
|
61
|
38
|
35
|
300
|
101
|
54
|
51
|
34
|
37
|
41
|
38
|
49
|
68
|
92
|
31
|
|
2024/06
|
52
|
52
|
42
|
38
|
43
|
36
|
40
|
31
|
31
|
33
|
31
|
32
|
57
|
42
|
71
|
53
|
47
|
89
|
48
|
17
|
28
|
27
|
37
|
73
|
89
|
65
|
55
|
39
|
65
|
30
|
|
|
2024/05
|
51
|
60
|
61
|
49
|
64
|
88
|
68
|
81
|
78
|
25
|
26
|
46
|
49
|
301
|
412
|
198
|
146
|
168
|
123
|
113
|
103
|
102
|
103
|
149
|
74
|
110
|
57
|
55
|
28
|
25
|
42
|
|
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