Air Quality
Excellent
No health implications.
14
PM2.5
21
PM10
80
O3
0.5
CO
5
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Apr
48
Excellent
Wed
30 Apr
74
Good
Thu
1 May
90
Good
Fri
2 May
97
Good
Sat
3 May
93
Good
Sun
4 May
84
Good
Mon
5 May
20
Excellent
Air quality in the last 12 months (Longchang)
|
2025/02
|
45
|
45
|
47
|
42
|
49
|
29
|
27
|
36
|
52
|
59
|
77
|
64
|
54
|
50
|
56
|
69
|
79
|
70
|
66
|
63
|
62
|
49
|
54
|
43
|
53
|
56
|
76
|
81
|
|||
|
2025/01
|
146
|
157
|
151
|
147
|
132
|
106
|
95
|
48
|
52
|
48
|
49
|
52
|
90
|
93
|
85
|
88
|
98
|
87
|
80
|
112
|
142
|
178
|
206
|
120
|
44
|
53
|
58
|
78
|
196
|
132
|
96
|
|
2024/12
|
104
|
142
|
107
|
100
|
51
|
38
|
38
|
25
|
49
|
56
|
65
|
66
|
47
|
55
|
59
|
72
|
102
|
141
|
103
|
112
|
129
|
107
|
82
|
91
|
100
|
93
|
118
|
103
|
92
|
86
|
90
|
|
2024/11
|
40
|
42
|
59
|
51
|
47
|
63
|
53
|
56
|
57
|
52
|
39
|
32
|
46
|
43
|
52
|
39
|
25
|
21
|
19
|
23
|
36
|
47
|
56
|
39
|
25
|
33
|
36
|
54
|
63
|
75
|
|
|
2024/10
|
23
|
27
|
22
|
34
|
46
|
53
|
46
|
57
|
66
|
65
|
50
|
42
|
32
|
45
|
69
|
123
|
30
|
34
|
37
|
26
|
27
|
25
|
38
|
62
|
65
|
50
|
28
|
52
|
74
|
64
|
61
|
|
2024/09
|
35
|
49
|
31
|
37
|
33
|
31
|
37
|
26
|
23
|
33
|
24
|
27
|
47
|
58
|
47
|
44
|
37
|
45
|
39
|
52
|
29
|
43
|
56
|
82
|
82
|
86
|
71
|
78
|
78
|
13
|
|
|
2024/08
|
37
|
27
|
24
|
19
|
24
|
26
|
29
|
29
|
40
|
35
|
49
|
68
|
60
|
55
|
52
|
35
|
44
|
46
|
50
|
60
|
59
|
62
|
43
|
41
|
30
|
37
|
55
|
58
|
39
|
47
|
51
|
|
2024/07
|
23
|
24
|
28
|
23
|
19
|
26
|
30
|
28
|
12
|
17
|
17
|
22
|
31
|
11
|
20
|
25
|
29
|
20
|
23
|
28
|
29
|
19
|
32
|
26
|
39
|
49
|
49
|
29
|
23
|
24
|
35
|
|
2024/06
|
54
|
30
|
31
|
21
|
26
|
33
|
25
|
24
|
34
|
28
|
32
|
26
|
40
|
45
|
43
|
45
|
26
|
42
|
27
|
21
|
21
|
25
|
28
|
29
|
26
|
31
|
13
|
19
|
24
|
32
|
|
|
2024/05
|
39
|
36
|
30
|
24
|
32
|
70
|
64
|
62
|
39
|
44
|
48
|
44
|
41
|
51
|
47
|
40
|
54
|
49
|
29
|
21
|
23
|
29
|
39
|
52
|
49
|
20
|
32
|
28
|
28
|
26
|
39
|
|
2024/04
|
39
|
37
|
42
|
49
|
29
|
25
|
19
|
26
|
34
|
25
|
32
|
46
|
45
|
50
|
55
|
28
|
26
|
40
|
29
|
50
|
58
|
47
|
39
|
29
|
29
|
38
|
65
|
71
|
16
|
19
|
|
|
2024/03
|
71
|
64
|
77
|
77
|
90
|
67
|
64
|
71
|
75
|
88
|
76
|
73
|
63
|
70
|
76
|
58
|
95
|
30
|
44
|
55
|
65
|
74
|
83
|
64
|
24
|
43
|
38
|
43
|
53
|
56
|
57
|
|
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