Air Quality
Excellent
No health implications.
5
PM2.5
8
PM10
22
O3
0.7
CO
4
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 May
56
Good
Wed
20 May
56
Good
Thu
21 May
75
Good
Fri
22 May
58
Good
Sat
23 May
67
Good
Sun
24 May
54
Good
Mon
25 May
33
Excellent
Air quality in the last 12 months (Longzihu)
|
2026/04
|
92
|
69
|
59
|
58
|
77
|
75
|
56
|
42
|
50
|
56
|
65
|
52
|
25
|
43
|
55
|
64
|
62
|
61
|
53
|
61
|
58
|
23
|
33
|
45
|
50
|
50
|
52
|
46
|
41
|
50
|
|
|
2026/03
|
41
|
37
|
90
|
59
|
55
|
90
|
54
|
54
|
111
|
89
|
83
|
96
|
100
|
112
|
83
|
91
|
81
|
84
|
116
|
123
|
119
|
79
|
100
|
87
|
81
|
95
|
101
|
74
|
65
|
83
|
114
|
|
2026/02
|
75
|
100
|
120
|
91
|
119
|
74
|
52
|
52
|
43
|
73
|
106
|
87
|
77
|
79
|
102
|
49
|
126
|
88
|
75
|
69
|
45
|
219
|
118
|
25
|
52
|
37
|
29
|
41
|
|||
|
2026/01
|
51
|
60
|
71
|
77
|
162
|
118
|
59
|
81
|
70
|
108
|
67
|
71
|
91
|
106
|
106
|
109
|
107
|
63
|
34
|
40
|
52
|
66
|
78
|
113
|
100
|
29
|
87
|
87
|
69
|
40
|
55
|
|
2025/12
|
125
|
65
|
60
|
63
|
83
|
93
|
115
|
108
|
69
|
88
|
141
|
36
|
58
|
84
|
67
|
75
|
130
|
121
|
126
|
159
|
59
|
37
|
55
|
83
|
72
|
53
|
68
|
74
|
113
|
128
|
38
|
|
2025/11
|
126
|
103
|
43
|
59
|
70
|
48
|
40
|
22
|
102
|
78
|
44
|
49
|
121
|
169
|
114
|
115
|
39
|
51
|
62
|
70
|
110
|
107
|
106
|
123
|
85
|
86
|
315
|
130
|
85
|
109
|
|
|
2025/10
|
25
|
32
|
15
|
38
|
50
|
60
|
48
|
41
|
36
|
61
|
58
|
58
|
20
|
40
|
34
|
27
|
20
|
25
|
30
|
27
|
25
|
34
|
46
|
53
|
72
|
89
|
84
|
54
|
55
|
50
|
100
|
|
2025/09
|
28
|
20
|
27
|
38
|
37
|
38
|
47
|
31
|
14
|
22
|
26
|
22
|
19
|
24
|
24
|
35
|
15
|
16
|
17
|
23
|
42
|
26
|
43
|
11
|
31
|
28
|
33
|
31
|
32
|
39
|
|
|
2025/08
|
11
|
8
|
17
|
28
|
29
|
35
|
23
|
21
|
25
|
12
|
10
|
16
|
20
|
28
|
24
|
27
|
31
|
32
|
31
|
22
|
28
|
27
|
21
|
19
|
16
|
10
|
27
|
33
|
24
|
18
|
14
|
|
2025/07
|
19
|
17
|
21
|
27
|
40
|
35
|
40
|
23
|
14
|
35
|
43
|
29
|
28
|
30
|
33
|
30
|
22
|
35
|
27
|
19
|
17
|
13
|
19
|
20
|
25
|
20
|
19
|
15
|
22
|
17
|
13
|
|
2025/06
|
28
|
15
|
52
|
63
|
48
|
37
|
20
|
27
|
26
|
43
|
38
|
44
|
47
|
35
|
36
|
52
|
51
|
21
|
9
|
7
|
10
|
24
|
38
|
34
|
26
|
34
|
24
|
11
|
9
|
14
|
|
|
2025/05
|
62
|
70
|
58
|
48
|
49
|
90
|
80
|
51
|
28
|
36
|
50
|
50
|
46
|
57
|
103
|
49
|
83
|
73
|
75
|
55
|
42
|
58
|
62
|
68
|
66
|
83
|
86
|
55
|
63
|
77
|
83
|
|
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