Air Quality
Excellent
No health implications.
3
PM2.5
27
PM10
107
O3
0.3
CO
9
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 May
69
Good
Mon
19 May
63
Good
Tue
20 May
66
Good
Wed
21 May
58
Good
Thu
22 May
58
Good
Fri
23 May
60
Good
Sat
24 May
40
Excellent
Air quality in the last 12 months (Qinghemen)
|
2025/02
|
75
|
77
|
39
|
31
|
47
|
66
|
64
|
44
|
49
|
92
|
106
|
47
|
88
|
89
|
121
|
53
|
30
|
32
|
42
|
46
|
41
|
42
|
44
|
82
|
79
|
79
|
140
|
212
|
|||
|
2025/01
|
47
|
40
|
71
|
95
|
82
|
67
|
41
|
38
|
35
|
54
|
76
|
90
|
99
|
47
|
44
|
68
|
97
|
134
|
59
|
80
|
59
|
68
|
122
|
124
|
93
|
96
|
57
|
46
|
130
|
49
|
65
|
|
2024/12
|
75
|
28
|
51
|
49
|
64
|
35
|
42
|
55
|
101
|
53
|
55
|
86
|
61
|
50
|
34
|
63
|
34
|
54
|
68
|
63
|
38
|
62
|
48
|
79
|
99
|
38
|
36
|
43
|
92
|
87
|
57
|
|
2024/11
|
65
|
54
|
56
|
31
|
49
|
54
|
99
|
131
|
74
|
44
|
60
|
67
|
66
|
39
|
53
|
27
|
27
|
30
|
73
|
83
|
66
|
43
|
84
|
156
|
74
|
30
|
47
|
52
|
68
|
85
|
|
|
2024/10
|
26
|
28
|
33
|
48
|
62
|
28
|
34
|
37
|
57
|
30
|
44
|
43
|
60
|
43
|
25
|
49
|
59
|
40
|
30
|
42
|
41
|
28
|
31
|
48
|
78
|
48
|
31
|
72
|
84
|
37
|
76
|
|
2024/09
|
20
|
19
|
32
|
30
|
17
|
30
|
27
|
33
|
39
|
25
|
41
|
37
|
37
|
14
|
32
|
39
|
30
|
29
|
46
|
9
|
16
|
24
|
35
|
48
|
38
|
39
|
44
|
50
|
38
|
15
|
|
|
2024/08
|
27
|
18
|
45
|
21
|
21
|
26
|
37
|
44
|
45
|
31
|
45
|
23
|
15
|
23
|
26
|
34
|
46
|
46
|
30
|
20
|
17
|
21
|
28
|
47
|
26
|
28
|
23
|
29
|
38
|
43
|
23
|
|
2024/07
|
52
|
53
|
24
|
39
|
60
|
49
|
25
|
53
|
56
|
52
|
61
|
70
|
52
|
50
|
46
|
21
|
24
|
36
|
50
|
36
|
43
|
28
|
36
|
25
|
21
|
9
|
15
|
16
|
29
|
42
|
31
|
|
2024/06
|
26
|
42
|
38
|
44
|
46
|
46
|
37
|
36
|
37
|
51
|
57
|
53
|
32
|
26
|
16
|
31
|
59
|
59
|
48
|
29
|
26
|
67
|
73
|
14
|
23
|
43
|
61
|
46
|
29
|
27
|
|
|
2024/05
|
46
|
50
|
61
|
58
|
47
|
66
|
61
|
72
|
74
|
84
|
85
|
46
|
58
|
64
|
41
|
56
|
64
|
61
|
30
|
26
|
51
|
49
|
29
|
27
|
52
|
36
|
19
|
35
|
54
|
41
|
15
|
|
2024/04
|
62
|
71
|
37
|
49
|
81
|
69
|
69
|
61
|
79
|
87
|
90
|
110
|
53
|
36
|
179
|
55
|
65
|
57
|
45
|
84
|
88
|
50
|
29
|
29
|
53
|
57
|
30
|
15
|
38
|
41
|
|
|
2024/03
|
31
|
49
|
45
|
76
|
48
|
49
|
66
|
45
|
80
|
118
|
86
|
55
|
83
|
115
|
88
|
213
|
84
|
50
|
24
|
28
|
77
|
51
|
65
|
20
|
25
|
67
|
99
|
189
|
94
|
77
|
75
|
|
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