Air Quality
Excellent
No health implications.
10
PM2.5
24
PM10
98
O3
0.3
CO
4
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 May
50
Excellent
Mon
5 May
54
Good
Tue
6 May
53
Good
Wed
7 May
89
Good
Thu
8 May
62
Good
Fri
9 May
57
Good
Sat
10 May
28
Excellent
Air quality in the last 12 months (Kaiyuan)
|
2025/02
|
120
|
165
|
78
|
69
|
61
|
65
|
56
|
53
|
74
|
64
|
68
|
49
|
71
|
81
|
95
|
52
|
34
|
33
|
46
|
56
|
54
|
60
|
57
|
59
|
96
|
64
|
86
|
125
|
|||
|
2025/01
|
47
|
39
|
55
|
69
|
98
|
118
|
57
|
36
|
64
|
70
|
73
|
89
|
95
|
74
|
41
|
52
|
63
|
68
|
76
|
61
|
73
|
88
|
102
|
78
|
79
|
98
|
126
|
65
|
100
|
83
|
94
|
|
2024/12
|
30
|
21
|
39
|
32
|
41
|
33
|
51
|
57
|
65
|
70
|
45
|
68
|
76
|
57
|
42
|
39
|
43
|
60
|
53
|
64
|
72
|
63
|
66
|
53
|
73
|
43
|
46
|
51
|
58
|
67
|
46
|
|
2024/11
|
74
|
96
|
106
|
31
|
37
|
36
|
47
|
65
|
61
|
46
|
39
|
48
|
44
|
34
|
33
|
34
|
27
|
26
|
38
|
78
|
73
|
58
|
91
|
68
|
49
|
25
|
39
|
43
|
49
|
51
|
|
|
2024/10
|
20
|
24
|
33
|
43
|
49
|
54
|
32
|
46
|
43
|
25
|
43
|
47
|
73
|
47
|
18
|
36
|
68
|
49
|
28
|
42
|
29
|
31
|
40
|
63
|
100
|
86
|
33
|
52
|
79
|
99
|
103
|
|
2024/09
|
21
|
18
|
24
|
35
|
20
|
27
|
26
|
29
|
36
|
20
|
23
|
23
|
33
|
17
|
23
|
30
|
43
|
35
|
28
|
11
|
18
|
28
|
30
|
39
|
25
|
20
|
32
|
39
|
43
|
17
|
|
|
2024/08
|
18
|
17
|
25
|
31
|
18
|
26
|
40
|
42
|
33
|
22
|
23
|
20
|
20
|
26
|
30
|
27
|
31
|
33
|
29
|
22
|
13
|
14
|
22
|
32
|
20
|
24
|
19
|
23
|
29
|
39
|
30
|
|
2024/07
|
59
|
49
|
14
|
45
|
51
|
39
|
30
|
54
|
46
|
50
|
61
|
64
|
65
|
56
|
60
|
36
|
14
|
42
|
41
|
17
|
33
|
21
|
31
|
22
|
20
|
9
|
14
|
12
|
22
|
42
|
21
|
|
2024/06
|
21
|
19
|
26
|
41
|
46
|
39
|
35
|
29
|
29
|
35
|
45
|
43
|
36
|
26
|
17
|
29
|
45
|
45
|
46
|
39
|
40
|
44
|
42
|
11
|
25
|
31
|
49
|
38
|
28
|
28
|
|
|
2024/05
|
40
|
60
|
62
|
58
|
35
|
48
|
45
|
44
|
70
|
71
|
85
|
34
|
47
|
63
|
31
|
20
|
44
|
53
|
27
|
18
|
36
|
44
|
25
|
24
|
22
|
15
|
15
|
27
|
47
|
39
|
15
|
|
2024/04
|
63
|
69
|
54
|
82
|
103
|
81
|
122
|
139
|
153
|
136
|
66
|
73
|
52
|
60
|
203
|
162
|
77
|
54
|
62
|
188
|
117
|
66
|
68
|
53
|
58
|
64
|
63
|
22
|
37
|
49
|
|
|
2024/03
|
38
|
45
|
41
|
53
|
37
|
38
|
46
|
40
|
47
|
93
|
83
|
51
|
65
|
96
|
93
|
114
|
69
|
94
|
85
|
64
|
94
|
41
|
89
|
36
|
69
|
74
|
79
|
178
|
93
|
73
|
60
|
|
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