Air Quality
Excellent
No health implications.
6
PM2.5
19
PM10
40
O3
0.4
CO
7
SO2
17
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Apr
56
Good
Fri
1 May
70
Good
Sat
2 May
64
Good
Sun
3 May
46
Excellent
Mon
4 May
56
Good
Tue
5 May
63
Good
Wed
6 May
20
Excellent
Air quality in the last 12 months (Longquan)
|
2026/03
|
17
|
19
|
26
|
56
|
32
|
43
|
57
|
49
|
50
|
42
|
37
|
44
|
52
|
52
|
51
|
50
|
48
|
48
|
20
|
40
|
37
|
36
|
26
|
20
|
29
|
38
|
32
|
37
|
27
|
32
|
22
|
|
2026/02
|
33
|
41
|
56
|
56
|
67
|
41
|
17
|
36
|
38
|
42
|
43
|
51
|
57
|
44
|
37
|
19
|
47
|
51
|
45
|
34
|
39
|
37
|
99
|
52
|
22
|
20
|
15
|
16
|
|||
|
2026/01
|
25
|
24
|
60
|
69
|
50
|
43
|
49
|
48
|
47
|
47
|
54
|
60
|
52
|
54
|
54
|
60
|
84
|
87
|
63
|
14
|
35
|
58
|
78
|
73
|
69
|
72
|
29
|
62
|
61
|
32
|
14
|
|
2025/12
|
59
|
103
|
52
|
55
|
54
|
61
|
68
|
80
|
73
|
49
|
54
|
76
|
41
|
38
|
47
|
53
|
61
|
108
|
97
|
64
|
76
|
41
|
48
|
50
|
28
|
49
|
49
|
49
|
50
|
71
|
65
|
|
2025/11
|
39
|
50
|
60
|
26
|
32
|
45
|
36
|
40
|
16
|
40
|
34
|
19
|
34
|
41
|
64
|
61
|
50
|
25
|
30
|
36
|
46
|
54
|
53
|
47
|
66
|
79
|
68
|
66
|
59
|
53
|
|
|
2025/10
|
37
|
26
|
25
|
29
|
27
|
30
|
37
|
43
|
38
|
36
|
41
|
36
|
38
|
28
|
26
|
30
|
33
|
31
|
20
|
23
|
26
|
24
|
32
|
35
|
41
|
49
|
40
|
50
|
33
|
32
|
29
|
|
2025/09
|
24
|
23
|
26
|
30
|
27
|
22
|
18
|
20
|
21
|
15
|
17
|
21
|
26
|
19
|
27
|
21
|
21
|
21
|
19
|
25
|
25
|
32
|
24
|
18
|
25
|
25
|
29
|
30
|
37
|
40
|
|
|
2025/08
|
32
|
30
|
25
|
20
|
16
|
18
|
17
|
21
|
26
|
32
|
31
|
25
|
13
|
11
|
11
|
13
|
14
|
16
|
18
|
20
|
16
|
16
|
23
|
22
|
20
|
21
|
17
|
13
|
14
|
17
|
27
|
|
2025/07
|
11
|
16
|
25
|
27
|
20
|
16
|
15
|
22
|
16
|
17
|
21
|
19
|
20
|
21
|
27
|
31
|
30
|
25
|
16
|
14
|
11
|
16
|
20
|
22
|
27
|
14
|
17
|
17
|
21
|
24
|
22
|
|
2025/06
|
36
|
30
|
17
|
33
|
29
|
32
|
33
|
39
|
21
|
21
|
19
|
21
|
14
|
22
|
16
|
20
|
26
|
19
|
26
|
21
|
21
|
22
|
21
|
20
|
29
|
26
|
26
|
21
|
27
|
21
|
|
|
2025/05
|
43
|
45
|
50
|
49
|
35
|
43
|
81
|
47
|
33
|
40
|
39
|
40
|
38
|
37
|
51
|
44
|
34
|
27
|
31
|
24
|
28
|
32
|
25
|
29
|
57
|
60
|
54
|
32
|
17
|
33
|
41
|
|
2025/04
|
29
|
36
|
52
|
56
|
51
|
56
|
57
|
55
|
58
|
39
|
44
|
65
|
122
|
83
|
64
|
52
|
59
|
58
|
52
|
34
|
51
|
26
|
33
|
27
|
18
|
33
|
32
|
35
|
53
|
48
|
|
|
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