Air Quality
Excellent
No health implications.
28
PM2.5
44
PM10
99
O3
0.6
CO
8
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 May
67
Good
Sun
25 May
70
Good
Mon
26 May
68
Good
Tue
27 May
60
Good
Wed
28 May
49
Excellent
Thu
29 May
46
Excellent
Fri
30 May
28
Excellent
Air quality in the last 12 months (Longhui)
|
2025/04
|
53
|
59
|
67
|
123
|
123
|
84
|
87
|
106
|
96
|
66
|
60
|
206
|
224
|
127
|
100
|
98
|
76
|
71
|
34
|
39
|
46
|
32
|
53
|
36
|
43
|
44
|
30
|
44
|
61
|
49
|
|
|
2025/03
|
48
|
41
|
19
|
24
|
28
|
39
|
45
|
56
|
55
|
53
|
52
|
54
|
56
|
29
|
20
|
45
|
40
|
41
|
49
|
52
|
65
|
68
|
78
|
73
|
85
|
97
|
112
|
73
|
46
|
23
|
47
|
|
2025/02
|
26
|
17
|
59
|
68
|
77
|
76
|
57
|
67
|
46
|
53
|
71
|
68
|
79
|
88
|
43
|
53
|
41
|
45
|
42
|
32
|
96
|
35
|
46
|
96
|
83
|
50
|
46
|
40
|
|||
|
2025/01
|
129
|
136
|
145
|
174
|
160
|
101
|
94
|
87
|
54
|
60
|
77
|
83
|
82
|
91
|
75
|
67
|
84
|
101
|
110
|
105
|
113
|
129
|
166
|
221
|
34
|
30
|
60
|
92
|
276
|
151
|
50
|
|
2024/12
|
79
|
79
|
98
|
129
|
35
|
38
|
49
|
66
|
107
|
48
|
35
|
68
|
80
|
51
|
55
|
64
|
79
|
70
|
94
|
119
|
109
|
91
|
84
|
111
|
115
|
105
|
95
|
140
|
138
|
136
|
108
|
|
2024/11
|
58
|
85
|
83
|
77
|
87
|
72
|
66
|
67
|
79
|
78
|
71
|
73
|
71
|
88
|
97
|
82
|
20
|
12
|
15
|
29
|
40
|
48
|
62
|
68
|
22
|
26
|
41
|
45
|
55
|
66
|
|
|
2024/10
|
21
|
49
|
58
|
55
|
57
|
71
|
53
|
52
|
56
|
63
|
77
|
78
|
120
|
56
|
36
|
34
|
44
|
32
|
15
|
22
|
32
|
19
|
32
|
51
|
52
|
53
|
50
|
57
|
70
|
59
|
58
|
|
2024/09
|
47
|
43
|
56
|
49
|
54
|
51
|
41
|
38
|
31
|
38
|
42
|
38
|
33
|
41
|
49
|
41
|
41
|
46
|
40
|
44
|
31
|
34
|
39
|
46
|
68
|
75
|
71
|
68
|
61
|
62
|
|
|
2024/08
|
13
|
18
|
21
|
29
|
30
|
30
|
31
|
31
|
30
|
33
|
29
|
37
|
41
|
42
|
49
|
39
|
49
|
49
|
34
|
40
|
43
|
26
|
25
|
25
|
40
|
39
|
41
|
29
|
37
|
40
|
51
|
|
2024/07
|
21
|
13
|
21
|
23
|
22
|
20
|
22
|
22
|
24
|
28
|
29
|
29
|
33
|
27
|
29
|
28
|
22
|
19
|
13
|
22
|
28
|
29
|
25
|
29
|
37
|
30
|
30
|
21
|
16
|
16
|
15
|
|
2024/06
|
30
|
22
|
55
|
25
|
18
|
28
|
39
|
43
|
35
|
25
|
18
|
16
|
21
|
22
|
33
|
38
|
16
|
13
|
19
|
26
|
26
|
24
|
29
|
16
|
10
|
18
|
26
|
28
|
18
|
14
|
|
|
2024/05
|
22
|
40
|
26
|
13
|
28
|
41
|
61
|
52
|
56
|
58
|
35
|
53
|
62
|
66
|
65
|
72
|
63
|
50
|
23
|
23
|
39
|
56
|
45
|
44
|
45
|
28
|
21
|
37
|
29
|
12
|
23
|
|
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