Air Quality
Excellent
No health implications.
14
PM2.5
28
PM10
122
O3
0.5
CO
8
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 May
64
Good
Wed
14 May
66
Good
Thu
15 May
75
Good
Fri
16 May
80
Good
Sat
17 May
81
Good
Sun
18 May
79
Good
Mon
19 May
27
Excellent
Air quality in the last 12 months (Huyanghe)
|
2025/02
|
52
|
92
|
68
|
65
|
92
|
120
|
153
|
114
|
135
|
92
|
162
|
133
|
55
|
71
|
92
|
72
|
82
|
146
|
132
|
94
|
76
|
104
|
85
|
125
|
121
|
107
|
50
|
58
|
|||
|
2025/01
|
206
|
206
|
107
|
131
|
112
|
115
|
93
|
101
|
35
|
56
|
54
|
53
|
127
|
98
|
54
|
75
|
141
|
144
|
123
|
153
|
182
|
133
|
46
|
30
|
34
|
39
|
41
|
85
|
219
|
139
|
88
|
|
2024/12
|
71
|
66
|
54
|
33
|
24
|
30
|
48
|
63
|
24
|
18
|
19
|
57
|
54
|
63
|
89
|
69
|
37
|
59
|
45
|
59
|
77
|
76
|
65
|
130
|
137
|
124
|
88
|
55
|
136
|
127
|
144
|
|
2024/11
|
41
|
50
|
54
|
43
|
49
|
57
|
48
|
12
|
16
|
21
|
45
|
43
|
43
|
19
|
27
|
47
|
49
|
51
|
76
|
107
|
82
|
53
|
15
|
33
|
59
|
52
|
55
|
100
|
130
|
105
|
|
|
2024/10
|
33
|
35
|
35
|
26
|
27
|
36
|
38
|
25
|
32
|
48
|
57
|
31
|
23
|
32
|
44
|
42
|
13
|
9
|
12
|
18
|
24
|
44
|
56
|
22
|
26
|
30
|
25
|
42
|
10
|
19
|
38
|
|
2024/09
|
30
|
33
|
11
|
17
|
27
|
33
|
26
|
12
|
23
|
27
|
29
|
16
|
33
|
19
|
33
|
38
|
38
|
44
|
47
|
43
|
47
|
55
|
42
|
40
|
41
|
16
|
11
|
13
|
15
|
23
|
|
|
2024/08
|
23
|
25
|
30
|
28
|
31
|
31
|
19
|
19
|
22
|
32
|
29
|
25
|
24
|
31
|
33
|
33
|
32
|
33
|
15
|
22
|
30
|
26
|
35
|
41
|
27
|
32
|
52
|
39
|
27
|
14
|
22
|
|
2024/07
|
24
|
20
|
20
|
40
|
31
|
24
|
18
|
29
|
22
|
16
|
16
|
22
|
28
|
34
|
29
|
27
|
17
|
27
|
19
|
23
|
32
|
28
|
24
|
31
|
23
|
32
|
27
|
33
|
28
|
57
|
24
|
|
2024/06
|
16
|
32
|
30
|
22
|
18
|
21
|
23
|
23
|
35
|
32
|
27
|
24
|
18
|
14
|
15
|
29
|
24
|
19
|
18
|
21
|
26
|
28
|
32
|
33
|
33
|
26
|
39
|
32
|
33
|
43
|
|
|
2024/05
|
29
|
40
|
50
|
48
|
47
|
47
|
31
|
21
|
21
|
26
|
36
|
43
|
37
|
38
|
46
|
52
|
51
|
42
|
41
|
36
|
13
|
19
|
19
|
16
|
20
|
31
|
14
|
12
|
33
|
21
|
19
|
|
2024/04
|
10
|
16
|
31
|
14
|
19
|
19
|
28
|
28
|
41
|
21
|
14
|
125
|
246
|
195
|
160
|
101
|
25
|
20
|
21
|
29
|
36
|
44
|
43
|
52
|
67
|
30
|
40
|
21
|
26
|
34
|
|
|
2024/03
|
69
|
50
|
52
|
61
|
48
|
98
|
48
|
48
|
76
|
77
|
55
|
69
|
54
|
11
|
28
|
53
|
58
|
43
|
40
|
54
|
58
|
24
|
19
|
46
|
32
|
29
|
40
|
47
|
47
|
35
|
17
|
|
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