Air Quality
Excellent
No health implications.
18
PM2.5
23
PM10
11
O3
0.7
CO
4
SO2
23
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Jan
45
Excellent
Tue
20 Jan
45
Excellent
Wed
21 Jan
68
Good
Thu
22 Jan
85
Good
Fri
23 Jan
116
Light
Sat
24 Jan
42
Excellent
Sun
25 Jan
15
Excellent
Air quality in the last 12 months (Hong'an)
|
2025/11
|
67
|
81
|
77
|
65
|
71
|
75
|
23
|
40
|
62
|
69
|
55
|
39
|
45
|
77
|
86
|
93
|
44
|
25
|
28
|
43
|
61
|
77
|
91
|
104
|
90
|
68
|
120
|
87
|
73
|
74
|
|
|
2025/10
|
37
|
33
|
15
|
37
|
55
|
50
|
34
|
50
|
58
|
29
|
27
|
33
|
14
|
30
|
36
|
24
|
20
|
14
|
18
|
26
|
27
|
33
|
34
|
38
|
63
|
60
|
58
|
64
|
78
|
58
|
51
|
|
2025/09
|
19
|
29
|
33
|
36
|
37
|
31
|
42
|
35
|
21
|
24
|
22
|
14
|
18
|
21
|
24
|
35
|
21
|
13
|
11
|
14
|
29
|
28
|
14
|
10
|
19
|
14
|
23
|
30
|
16
|
21
|
|
|
2025/08
|
26
|
17
|
26
|
34
|
33
|
25
|
19
|
18
|
20
|
18
|
9
|
16
|
16
|
25
|
22
|
25
|
30
|
32
|
25
|
16
|
16
|
17
|
20
|
27
|
31
|
27
|
29
|
30
|
33
|
24
|
20
|
|
2025/07
|
21
|
19
|
20
|
26
|
36
|
33
|
32
|
35
|
17
|
27
|
41
|
23
|
19
|
27
|
32
|
29
|
31
|
30
|
32
|
24
|
17
|
14
|
15
|
19
|
22
|
23
|
21
|
18
|
19
|
24
|
25
|
|
2025/06
|
18
|
24
|
47
|
55
|
43
|
41
|
23
|
20
|
17
|
20
|
29
|
42
|
35
|
26
|
31
|
47
|
36
|
21
|
11
|
18
|
13
|
14
|
22
|
24
|
33
|
23
|
20
|
19
|
12
|
20
|
|
|
2025/05
|
52
|
62
|
52
|
49
|
42
|
117
|
124
|
46
|
45
|
42
|
44
|
47
|
57
|
73
|
58
|
43
|
76
|
122
|
84
|
42
|
33
|
30
|
59
|
58
|
50
|
61
|
62
|
56
|
40
|
38
|
17
|
|
2025/04
|
68
|
70
|
62
|
83
|
81
|
69
|
69
|
70
|
73
|
61
|
53
|
191
|
115
|
88
|
55
|
59
|
67
|
66
|
57
|
59
|
45
|
63
|
68
|
70
|
69
|
52
|
46
|
48
|
44
|
42
|
|
|
2025/03
|
90
|
48
|
24
|
45
|
55
|
75
|
82
|
85
|
95
|
93
|
72
|
95
|
90
|
49
|
41
|
48
|
40
|
50
|
50
|
55
|
50
|
61
|
74
|
66
|
55
|
71
|
103
|
77
|
79
|
71
|
75
|
|
2025/02
|
81
|
73
|
108
|
88
|
70
|
45
|
80
|
50
|
53
|
67
|
72
|
95
|
91
|
82
|
83
|
91
|
79
|
75
|
89
|
86
|
71
|
79
|
112
|
104
|
98
|
100
|
73
|
88
|
|||
|
2025/01
|
122
|
171
|
175
|
210
|
80
|
81
|
61
|
65
|
53
|
54
|
76
|
87
|
98
|
114
|
66
|
67
|
80
|
93
|
145
|
133
|
128
|
167
|
188
|
84
|
31
|
55
|
60
|
92
|
216
|
85
|
130
|
|
2024/12
|
75
|
93
|
110
|
82
|
59
|
56
|
76
|
63
|
61
|
82
|
89
|
102
|
88
|
61
|
60
|
78
|
101
|
82
|
67
|
100
|
91
|
58
|
70
|
94
|
117
|
138
|
158
|
54
|
70
|
100
|
120
|
|
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