Air Quality
Excellent
No health implications.
10
PM2.5
21
PM10
62
O3
0.3
CO
5
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Jul
54
Good
Fri
18 Jul
62
Good
Sat
19 Jul
60
Good
Sun
20 Jul
62
Good
Mon
21 Jul
61
Good
Tue
22 Jul
56
Good
Wed
23 Jul
26
Excellent
Air quality in the last 12 months (Longsha)
|
2025/06
|
27
|
30
|
19
|
21
|
24
|
15
|
21
|
28
|
17
|
25
|
26
|
39
|
30
|
27
|
30
|
21
|
21
|
32
|
21
|
17
|
18
|
28
|
41
|
41
|
47
|
32
|
48
|
36
|
31
|
34
|
|
|
2025/05
|
27
|
24
|
25
|
18
|
23
|
27
|
36
|
47
|
50
|
39
|
56
|
68
|
65
|
42
|
64
|
68
|
24
|
28
|
33
|
35
|
25
|
26
|
30
|
36
|
41
|
46
|
46
|
67
|
64
|
72
|
39
|
|
2025/04
|
53
|
55
|
54
|
98
|
75
|
50
|
61
|
46
|
62
|
117
|
61
|
14
|
14
|
25
|
27
|
42
|
41
|
23
|
27
|
65
|
93
|
20
|
26
|
17
|
20
|
33
|
55
|
26
|
100
|
24
|
|
|
2025/03
|
23
|
26
|
34
|
52
|
95
|
59
|
55
|
46
|
82
|
95
|
45
|
33
|
19
|
16
|
22
|
25
|
32
|
26
|
53
|
24
|
25
|
31
|
123
|
36
|
36
|
45
|
17
|
20
|
17
|
26
|
45
|
|
2025/02
|
70
|
121
|
51
|
20
|
32
|
39
|
14
|
14
|
21
|
38
|
91
|
72
|
32
|
30
|
28
|
26
|
20
|
19
|
21
|
29
|
31
|
31
|
27
|
39
|
36
|
22
|
42
|
27
|
|||
|
2025/01
|
98
|
39
|
41
|
118
|
123
|
67
|
25
|
31
|
26
|
29
|
59
|
163
|
236
|
64
|
29
|
32
|
89
|
188
|
188
|
134
|
88
|
68
|
208
|
271
|
222
|
204
|
26
|
35
|
51
|
27
|
27
|
|
2024/12
|
36
|
16
|
21
|
19
|
22
|
17
|
23
|
32
|
78
|
40
|
22
|
33
|
47
|
29
|
21
|
25
|
26
|
27
|
31
|
48
|
28
|
25
|
23
|
40
|
39
|
25
|
22
|
26
|
50
|
117
|
114
|
|
2024/11
|
48
|
58
|
38
|
29
|
29
|
70
|
79
|
185
|
171
|
119
|
126
|
47
|
117
|
191
|
106
|
44
|
25
|
26
|
44
|
42
|
22
|
31
|
65
|
188
|
144
|
46
|
23
|
37
|
21
|
24
|
|
|
2024/10
|
21
|
24
|
33
|
37
|
40
|
42
|
63
|
32
|
52
|
23
|
26
|
25
|
48
|
53
|
20
|
36
|
27
|
35
|
23
|
46
|
34
|
37
|
42
|
51
|
44
|
98
|
46
|
38
|
57
|
44
|
53
|
|
2024/09
|
15
|
20
|
27
|
26
|
21
|
24
|
33
|
34
|
42
|
24
|
22
|
30
|
19
|
27
|
33
|
27
|
25
|
26
|
18
|
24
|
29
|
29
|
34
|
36
|
30
|
38
|
31
|
31
|
50
|
21
|
|
|
2024/08
|
25
|
25
|
25
|
22
|
18
|
28
|
33
|
24
|
37
|
36
|
18
|
21
|
24
|
30
|
32
|
30
|
31
|
26
|
21
|
23
|
21
|
26
|
33
|
27
|
31
|
16
|
17
|
24
|
25
|
17
|
17
|
|
2024/07
|
35
|
49
|
58
|
64
|
61
|
51
|
60
|
79
|
70
|
70
|
81
|
85
|
92
|
65
|
57
|
51
|
22
|
37
|
30
|
36
|
26
|
29
|
25
|
25
|
30
|
23
|
13
|
21
|
21
|
27
|
27
|
|
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