Air Quality
Excellent
No health implications.
10
PM2.5
26
PM10
77
O3
0.8
CO
5
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 May
57
Good
Sat
24 May
86
Good
Sun
25 May
101
Light
Mon
26 May
110
Light
Tue
27 May
100
Good
Wed
28 May
32
Excellent
Thu
29 May
29
Excellent
Air quality in the last 12 months (Hongshan)
|
2025/04
|
76
|
68
|
61
|
73
|
82
|
76
|
74
|
77
|
77
|
53
|
56
|
191
|
118
|
101
|
56
|
63
|
74
|
73
|
70
|
59
|
36
|
53
|
61
|
60
|
61
|
47
|
45
|
58
|
49
|
46
|
|
|
2025/03
|
70
|
43
|
13
|
38
|
53
|
73
|
79
|
93
|
83
|
67
|
64
|
63
|
58
|
42
|
30
|
46
|
34
|
48
|
52
|
54
|
58
|
60
|
67
|
61
|
57
|
77
|
104
|
72
|
73
|
76
|
79
|
|
2025/02
|
70
|
58
|
86
|
83
|
64
|
42
|
74
|
42
|
45
|
59
|
78
|
96
|
125
|
80
|
88
|
84
|
64
|
77
|
67
|
94
|
99
|
89
|
122
|
130
|
119
|
98
|
65
|
75
|
|||
|
2025/01
|
121
|
173
|
196
|
212
|
75
|
85
|
57
|
58
|
46
|
44
|
74
|
83
|
101
|
98
|
53
|
58
|
90
|
91
|
131
|
155
|
133
|
118
|
228
|
110
|
25
|
40
|
58
|
58
|
178
|
71
|
131
|
|
2024/12
|
70
|
88
|
132
|
91
|
50
|
51
|
60
|
71
|
61
|
83
|
94
|
103
|
85
|
53
|
57
|
65
|
91
|
83
|
74
|
108
|
93
|
59
|
63
|
91
|
118
|
138
|
156
|
41
|
58
|
108
|
142
|
|
2024/11
|
68
|
114
|
122
|
90
|
56
|
52
|
47
|
48
|
53
|
59
|
69
|
53
|
55
|
68
|
84
|
54
|
16
|
20
|
24
|
29
|
44
|
69
|
80
|
64
|
33
|
36
|
44
|
53
|
53
|
57
|
|
|
2024/10
|
14
|
42
|
35
|
29
|
42
|
59
|
23
|
27
|
47
|
77
|
80
|
61
|
67
|
71
|
69
|
49
|
25
|
16
|
20
|
30
|
42
|
29
|
47
|
61
|
45
|
41
|
57
|
96
|
79
|
71
|
41
|
|
2024/09
|
39
|
51
|
41
|
42
|
49
|
51
|
46
|
43
|
46
|
40
|
41
|
21
|
30
|
38
|
41
|
25
|
40
|
33
|
29
|
31
|
26
|
21
|
28
|
40
|
58
|
56
|
55
|
30
|
33
|
41
|
|
|
2024/08
|
29
|
27
|
24
|
24
|
27
|
29
|
31
|
34
|
29
|
34
|
86
|
73
|
41
|
36
|
30
|
33
|
37
|
37
|
33
|
26
|
30
|
38
|
36
|
34
|
30
|
37
|
20
|
19
|
40
|
31
|
44
|
|
2024/07
|
23
|
22
|
27
|
19
|
20
|
21
|
22
|
22
|
31
|
33
|
41
|
41
|
21
|
30
|
37
|
40
|
34
|
21
|
17
|
19
|
24
|
25
|
27
|
43
|
39
|
30
|
19
|
14
|
12
|
21
|
19
|
|
2024/06
|
28
|
32
|
28
|
22
|
29
|
42
|
40
|
38
|
24
|
23
|
19
|
31
|
33
|
34
|
37
|
40
|
38
|
32
|
13
|
26
|
21
|
15
|
20
|
36
|
18
|
29
|
17
|
10
|
9
|
20
|
|
|
2024/05
|
41
|
33
|
29
|
29
|
40
|
36
|
49
|
48
|
50
|
65
|
65
|
99
|
75
|
61
|
69
|
52
|
58
|
60
|
70
|
50
|
44
|
25
|
26
|
38
|
35
|
38
|
30
|
22
|
27
|
97
|
55
|
|
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