Air Quality
Excellent
No health implications.
24
PM2.5
43
PM10
36
O3
0.6
CO
5
SO2
32
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Mar
64
Good
Thu
20 Mar
66
Good
Fri
21 Mar
72
Good
Sat
22 Mar
70
Good
Sun
23 Mar
86
Good
Mon
24 Mar
42
Excellent
Tue
25 Mar
30
Excellent
Air quality in the last 12 months (Heyang)
|
2025/02
|
146
|
119
|
39
|
46
|
41
|
76
|
71
|
35
|
59
|
77
|
82
|
84
|
77
|
79
|
78
|
77
|
79
|
85
|
81
|
84
|
102
|
101
|
57
|
62
|
73
|
69
|
74
|
84
|
|||
|
2025/01
|
111
|
75
|
86
|
108
|
98
|
59
|
56
|
56
|
52
|
75
|
76
|
74
|
92
|
70
|
40
|
65
|
94
|
103
|
105
|
119
|
123
|
151
|
145
|
101
|
46
|
74
|
45
|
79
|
160
|
136
|
168
|
|
2024/12
|
70
|
70
|
62
|
76
|
63
|
69
|
54
|
56
|
81
|
93
|
96
|
114
|
61
|
59
|
65
|
84
|
100
|
71
|
71
|
87
|
46
|
69
|
98
|
123
|
120
|
86
|
58
|
57
|
76
|
83
|
84
|
|
2024/11
|
90
|
69
|
76
|
59
|
66
|
72
|
86
|
89
|
78
|
117
|
118
|
125
|
61
|
52
|
61
|
58
|
38
|
43
|
45
|
55
|
67
|
84
|
101
|
101
|
44
|
47
|
70
|
60
|
49
|
57
|
|
|
2024/10
|
65
|
55
|
50
|
56
|
63
|
85
|
82
|
84
|
101
|
66
|
70
|
69
|
59
|
83
|
85
|
108
|
65
|
41
|
30
|
24
|
34
|
30
|
48
|
57
|
62
|
68
|
52
|
60
|
80
|
82
|
84
|
|
2024/09
|
50
|
44
|
36
|
42
|
37
|
37
|
35
|
43
|
45
|
48
|
40
|
32
|
45
|
37
|
46
|
39
|
39
|
44
|
32
|
34
|
28
|
44
|
50
|
66
|
89
|
81
|
85
|
62
|
36
|
25
|
|
|
2024/08
|
41
|
40
|
30
|
29
|
31
|
34
|
24
|
32
|
46
|
120
|
50
|
36
|
39
|
40
|
36
|
43
|
45
|
39
|
31
|
36
|
32
|
41
|
47
|
49
|
39
|
21
|
23
|
30
|
33
|
33
|
34
|
|
2024/07
|
28
|
41
|
42
|
41
|
29
|
36
|
37
|
28
|
33
|
48
|
49
|
47
|
55
|
55
|
37
|
31
|
27
|
21
|
27
|
19
|
30
|
28
|
36
|
43
|
67
|
58
|
42
|
52
|
32
|
20
|
38
|
|
2024/06
|
65
|
49
|
58
|
43
|
32
|
48
|
55
|
60
|
58
|
56
|
74
|
69
|
60
|
53
|
61
|
51
|
40
|
38
|
38
|
40
|
34
|
53
|
64
|
98
|
92
|
82
|
64
|
62
|
55
|
53
|
|
|
2024/05
|
40
|
40
|
43
|
45
|
50
|
46
|
56
|
58
|
59
|
48
|
129
|
66
|
67
|
64
|
78
|
58
|
72
|
68
|
50
|
56
|
58
|
56
|
53
|
60
|
71
|
57
|
56
|
52
|
41
|
55
|
77
|
|
2024/04
|
66
|
62
|
54
|
67
|
64
|
78
|
75
|
65
|
60
|
57
|
53
|
51
|
51
|
45
|
87
|
78
|
71
|
66
|
77
|
89
|
94
|
86
|
164
|
91
|
79
|
65
|
62
|
63
|
53
|
33
|
|
|
2024/03
|
50
|
57
|
66
|
69
|
115
|
70
|
87
|
64
|
75
|
84
|
76
|
70
|
85
|
76
|
68
|
207
|
118
|
94
|
134
|
90
|
80
|
115
|
100
|
43
|
41
|
62
|
69
|
78
|
73
|
73
|
79
|
|
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