Air Quality
Excellent
No health implications.
4
PM2.5
11
PM10
54
O3
0.8
CO
5
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Jul
51
Good
Tue
15 Jul
48
Excellent
Wed
16 Jul
48
Excellent
Thu
17 Jul
48
Excellent
Fri
18 Jul
45
Excellent
Sat
19 Jul
48
Excellent
Sun
20 Jul
33
Excellent
Air quality in the last 12 months (Longjing)
|
2025/06
|
41
|
39
|
21
|
15
|
36
|
39
|
39
|
22
|
36
|
20
|
15
|
20
|
36
|
36
|
33
|
15
|
18
|
27
|
32
|
16
|
16
|
25
|
28
|
37
|
36
|
31
|
41
|
47
|
39
|
27
|
|
|
2025/05
|
21
|
22
|
16
|
12
|
16
|
22
|
37
|
47
|
42
|
16
|
21
|
35
|
50
|
46
|
23
|
28
|
19
|
23
|
22
|
17
|
35
|
42
|
19
|
33
|
25
|
19
|
32
|
25
|
33
|
38
|
37
|
|
2025/04
|
52
|
42
|
30
|
36
|
34
|
26
|
21
|
31
|
38
|
42
|
51
|
35
|
13
|
12
|
20
|
19
|
24
|
30
|
28
|
22
|
30
|
16
|
16
|
37
|
54
|
46
|
60
|
38
|
58
|
35
|
|
|
2025/03
|
99
|
21
|
25
|
33
|
35
|
41
|
50
|
48
|
69
|
77
|
101
|
106
|
62
|
32
|
48
|
28
|
32
|
35
|
49
|
45
|
58
|
27
|
29
|
54
|
90
|
40
|
34
|
24
|
22
|
26
|
36
|
|
2025/02
|
41
|
56
|
44
|
30
|
29
|
20
|
25
|
22
|
31
|
35
|
55
|
55
|
45
|
53
|
50
|
58
|
32
|
26
|
26
|
28
|
31
|
29
|
27
|
43
|
123
|
94
|
68
|
82
|
|||
|
2025/01
|
39
|
41
|
39
|
48
|
67
|
43
|
37
|
32
|
35
|
36
|
42
|
45
|
52
|
45
|
31
|
38
|
42
|
62
|
62
|
71
|
68
|
56
|
49
|
47
|
49
|
47
|
31
|
22
|
49
|
30
|
35
|
|
2024/12
|
43
|
19
|
27
|
29
|
22
|
29
|
27
|
28
|
39
|
33
|
23
|
36
|
37
|
39
|
38
|
32
|
39
|
28
|
37
|
48
|
35
|
30
|
28
|
33
|
48
|
60
|
30
|
33
|
34
|
57
|
38
|
|
2024/11
|
43
|
37
|
35
|
29
|
18
|
34
|
32
|
46
|
63
|
58
|
110
|
53
|
49
|
61
|
63
|
26
|
33
|
27
|
30
|
45
|
38
|
22
|
38
|
44
|
48
|
21
|
16
|
29
|
24
|
19
|
|
|
2024/10
|
8
|
18
|
24
|
23
|
26
|
42
|
15
|
26
|
30
|
30
|
27
|
30
|
33
|
32
|
19
|
20
|
36
|
32
|
29
|
26
|
41
|
46
|
17
|
31
|
38
|
48
|
34
|
26
|
32
|
41
|
49
|
|
2024/09
|
25
|
14
|
21
|
25
|
15
|
14
|
22
|
16
|
22
|
18
|
18
|
17
|
18
|
12
|
16
|
21
|
19
|
21
|
33
|
12
|
10
|
11
|
17
|
19
|
22
|
19
|
23
|
22
|
24
|
25
|
|
|
2024/08
|
21
|
20
|
18
|
14
|
12
|
15
|
16
|
25
|
24
|
20
|
9
|
9
|
19
|
28
|
22
|
17
|
15
|
21
|
21
|
8
|
11
|
14
|
12
|
28
|
36
|
26
|
17
|
19
|
25
|
22
|
17
|
|
2024/07
|
31
|
28
|
12
|
24
|
28
|
22
|
11
|
30
|
44
|
52
|
58
|
67
|
56
|
45
|
40
|
31
|
20
|
16
|
21
|
33
|
25
|
22
|
18
|
15
|
16
|
10
|
15
|
13
|
13
|
17
|
21
|
|
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