Air Quality
Excellent
No health implications.
23
PM2.5
46
PM10
22
O3
0.7
CO
4
SO2
30
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
28 Apr
77
Good
Tue
29 Apr
57
Good
Wed
30 Apr
95
Good
Thu
1 May
103
Light
Fri
2 May
112
Light
Sat
3 May
128
Light
Sun
4 May
50
Excellent
Air quality in the last 12 months (Longquanyi)
|
2025/02
|
33
|
40
|
37
|
44
|
44
|
26
|
31
|
25
|
37
|
50
|
62
|
63
|
49
|
47
|
40
|
50
|
51
|
62
|
48
|
45
|
32
|
22
|
40
|
20
|
19
|
39
|
67
|
69
|
|||
|
2025/01
|
130
|
102
|
144
|
140
|
61
|
82
|
70
|
49
|
48
|
52
|
44
|
65
|
92
|
73
|
54
|
74
|
77
|
61
|
65
|
86
|
113
|
142
|
195
|
88
|
36
|
76
|
78
|
80
|
95
|
94
|
55
|
|
2024/12
|
62
|
97
|
98
|
76
|
40
|
29
|
22
|
15
|
29
|
51
|
49
|
61
|
45
|
46
|
53
|
65
|
89
|
112
|
85
|
91
|
91
|
56
|
67
|
68
|
64
|
74
|
99
|
69
|
65
|
58
|
67
|
|
2024/11
|
32
|
30
|
37
|
26
|
27
|
32
|
44
|
59
|
32
|
29
|
41
|
38
|
20
|
40
|
52
|
32
|
17
|
7
|
11
|
18
|
27
|
34
|
42
|
32
|
16
|
25
|
35
|
43
|
49
|
55
|
|
|
2024/10
|
16
|
26
|
15
|
22
|
33
|
44
|
25
|
28
|
49
|
36
|
25
|
30
|
32
|
27
|
32
|
43
|
19
|
30
|
22
|
8
|
9
|
26
|
30
|
36
|
47
|
30
|
21
|
24
|
46
|
46
|
43
|
|
2024/09
|
31
|
39
|
26
|
40
|
21
|
35
|
26
|
29
|
32
|
13
|
13
|
24
|
34
|
28
|
15
|
28
|
26
|
32
|
44
|
40
|
13
|
16
|
31
|
43
|
69
|
63
|
50
|
91
|
39
|
13
|
|
|
2024/08
|
28
|
26
|
25
|
11
|
16
|
23
|
22
|
29
|
31
|
26
|
43
|
58
|
47
|
50
|
35
|
29
|
37
|
25
|
23
|
33
|
53
|
51
|
46
|
38
|
40
|
42
|
39
|
47
|
38
|
38
|
41
|
|
2024/07
|
13
|
18
|
13
|
11
|
33
|
27
|
28
|
10
|
6
|
10
|
15
|
13
|
13
|
8
|
10
|
19
|
16
|
11
|
13
|
13
|
26
|
15
|
26
|
24
|
30
|
53
|
47
|
18
|
19
|
15
|
20
|
|
2024/06
|
42
|
27
|
38
|
15
|
17
|
22
|
30
|
28
|
28
|
34
|
20
|
20
|
23
|
46
|
42
|
36
|
14
|
29
|
28
|
21
|
27
|
16
|
26
|
21
|
16
|
12
|
14
|
20
|
19
|
19
|
|
|
2024/05
|
54
|
33
|
14
|
20
|
26
|
36
|
39
|
36
|
27
|
47
|
59
|
46
|
35
|
41
|
37
|
33
|
47
|
50
|
27
|
15
|
23
|
25
|
30
|
31
|
33
|
25
|
32
|
19
|
10
|
24
|
42
|
|
2024/04
|
30
|
59
|
55
|
53
|
21
|
28
|
21
|
18
|
29
|
24
|
17
|
28
|
35
|
46
|
48
|
42
|
46
|
30
|
17
|
50
|
82
|
47
|
22
|
17
|
21
|
40
|
43
|
76
|
45
|
19
|
|
|
2024/03
|
54
|
54
|
67
|
70
|
72
|
57
|
66
|
78
|
88
|
75
|
47
|
67
|
31
|
29
|
61
|
75
|
79
|
45
|
50
|
54
|
59
|
67
|
75
|
40
|
18
|
37
|
41
|
31
|
44
|
31
|
24
|
|
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