Air Quality
Excellent
No health implications.
18
PM2.5
28
PM10
73
O3
0.5
CO
58
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Jul
91
Good
Sat
19 Jul
75
Good
Sun
20 Jul
59
Good
Mon
21 Jul
77
Good
Tue
22 Jul
60
Good
Wed
23 Jul
59
Good
Thu
24 Jul
44
Excellent
Air quality in the last 12 months (Huaying)
|
2025/06
|
14
|
21
|
41
|
52
|
44
|
47
|
44
|
25
|
17
|
34
|
37
|
40
|
44
|
37
|
37
|
43
|
39
|
23
|
15
|
30
|
26
|
12
|
18
|
20
|
43
|
25
|
21
|
25
|
21
|
20
|
|
|
2025/05
|
52
|
62
|
79
|
27
|
41
|
60
|
65
|
28
|
60
|
67
|
56
|
56
|
59
|
50
|
63
|
76
|
68
|
70
|
72
|
63
|
58
|
30
|
54
|
65
|
51
|
38
|
28
|
25
|
26
|
29
|
21
|
|
2025/04
|
41
|
62
|
63
|
74
|
71
|
72
|
74
|
67
|
71
|
68
|
36
|
369
|
308
|
161
|
115
|
91
|
88
|
71
|
54
|
40
|
41
|
43
|
60
|
54
|
60
|
45
|
41
|
48
|
46
|
38
|
|
|
2025/03
|
100
|
86
|
29
|
20
|
18
|
21
|
36
|
52
|
66
|
61
|
56
|
77
|
51
|
50
|
32
|
29
|
28
|
37
|
53
|
58
|
69
|
109
|
110
|
73
|
62
|
64
|
111
|
56
|
18
|
23
|
29
|
|
2025/02
|
95
|
43
|
38
|
40
|
53
|
38
|
39
|
39
|
57
|
76
|
95
|
78
|
49
|
39
|
49
|
68
|
73
|
49
|
61
|
43
|
41
|
48
|
33
|
47
|
73
|
89
|
75
|
80
|
|||
|
2025/01
|
160
|
224
|
208
|
138
|
68
|
102
|
88
|
50
|
61
|
50
|
69
|
74
|
107
|
144
|
98
|
87
|
101
|
125
|
126
|
137
|
151
|
200
|
253
|
113
|
22
|
47
|
63
|
94
|
261
|
215
|
133
|
|
2024/12
|
94
|
116
|
100
|
60
|
28
|
27
|
28
|
33
|
46
|
58
|
61
|
53
|
52
|
59
|
73
|
77
|
106
|
151
|
105
|
89
|
132
|
105
|
84
|
99
|
142
|
131
|
116
|
119
|
138
|
145
|
127
|
|
2024/11
|
41
|
43
|
57
|
59
|
30
|
42
|
61
|
74
|
35
|
34
|
57
|
46
|
41
|
37
|
38
|
27
|
10
|
11
|
15
|
21
|
29
|
39
|
37
|
32
|
18
|
40
|
48
|
56
|
75
|
97
|
|
|
2024/10
|
20
|
31
|
36
|
49
|
68
|
56
|
44
|
41
|
57
|
69
|
45
|
34
|
39
|
45
|
47
|
56
|
28
|
29
|
43
|
11
|
15
|
22
|
38
|
48
|
65
|
83
|
42
|
55
|
63
|
87
|
61
|
|
2024/09
|
48
|
38
|
31
|
29
|
48
|
42
|
33
|
29
|
24
|
34
|
34
|
32
|
37
|
47
|
40
|
25
|
32
|
46
|
41
|
45
|
24
|
32
|
31
|
48
|
63
|
81
|
67
|
52
|
38
|
9
|
|
|
2024/08
|
29
|
26
|
17
|
19
|
17
|
24
|
28
|
27
|
29
|
35
|
60
|
62
|
53
|
49
|
45
|
49
|
54
|
52
|
49
|
46
|
48
|
41
|
38
|
38
|
27
|
32
|
44
|
37
|
32
|
38
|
29
|
|
2024/07
|
31
|
33
|
29
|
21
|
17
|
25
|
27
|
23
|
21
|
23
|
18
|
21
|
26
|
19
|
22
|
25
|
28
|
26
|
24
|
25
|
24
|
26
|
24
|
24
|
61
|
54
|
37
|
38
|
36
|
30
|
33
|
|
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