Air Quality
Excellent
No health implications.
26
PM2.5
30
PM10
29
O3
0.9
CO
14
SO2
19
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Apr
84
Good
Mon
21 Apr
90
Good
Tue
22 Apr
48
Excellent
Wed
23 Apr
67
Good
Thu
24 Apr
67
Good
Fri
25 Apr
37
Excellent
Sat
26 Apr
18
Excellent
Air quality in the last 12 months (Hongwei)
|
2025/02
|
156
|
176
|
62
|
39
|
41
|
63
|
51
|
49
|
63
|
56
|
54
|
50
|
68
|
69
|
90
|
48
|
28
|
28
|
43
|
40
|
51
|
52
|
45
|
53
|
88
|
59
|
85
|
119
|
|||
|
2025/01
|
44
|
55
|
57
|
44
|
155
|
128
|
78
|
42
|
33
|
75
|
91
|
109
|
86
|
64
|
44
|
53
|
62
|
48
|
73
|
93
|
86
|
78
|
95
|
123
|
136
|
159
|
121
|
52
|
147
|
101
|
120
|
|
2024/12
|
35
|
20
|
29
|
34
|
47
|
33
|
43
|
48
|
57
|
83
|
50
|
68
|
68
|
67
|
50
|
60
|
28
|
54
|
59
|
74
|
47
|
52
|
48
|
63
|
82
|
46
|
49
|
63
|
54
|
78
|
51
|
|
2024/11
|
86
|
90
|
53
|
28
|
26
|
40
|
35
|
44
|
43
|
41
|
53
|
49
|
28
|
24
|
30
|
25
|
24
|
26
|
31
|
77
|
53
|
49
|
78
|
52
|
43
|
16
|
30
|
44
|
48
|
54
|
|
|
2024/10
|
20
|
31
|
25
|
29
|
38
|
52
|
34
|
48
|
36
|
24
|
35
|
55
|
42
|
29
|
22
|
49
|
46
|
45
|
27
|
44
|
24
|
33
|
35
|
62
|
80
|
101
|
38
|
64
|
62
|
66
|
87
|
|
2024/09
|
27
|
18
|
33
|
31
|
22
|
30
|
31
|
34
|
34
|
31
|
42
|
48
|
46
|
21
|
29
|
43
|
56
|
50
|
48
|
21
|
19
|
34
|
38
|
22
|
28
|
35
|
49
|
41
|
29
|
16
|
|
|
2024/08
|
17
|
27
|
35
|
18
|
13
|
27
|
28
|
44
|
44
|
18
|
39
|
43
|
36
|
40
|
43
|
41
|
43
|
35
|
20
|
23
|
25
|
24
|
29
|
46
|
43
|
25
|
33
|
38
|
34
|
38
|
41
|
|
2024/07
|
43
|
54
|
23
|
49
|
74
|
27
|
42
|
45
|
52
|
54
|
63
|
62
|
48
|
54
|
47
|
18
|
22
|
39
|
29
|
16
|
25
|
16
|
22
|
23
|
15
|
17
|
15
|
12
|
37
|
44
|
14
|
|
2024/06
|
26
|
26
|
39
|
43
|
33
|
24
|
23
|
22
|
37
|
36
|
40
|
27
|
23
|
25
|
24
|
40
|
57
|
51
|
33
|
26
|
39
|
24
|
74
|
15
|
26
|
36
|
39
|
30
|
17
|
29
|
|
|
2024/05
|
35
|
54
|
58
|
46
|
28
|
39
|
53
|
51
|
96
|
52
|
84
|
32
|
56
|
73
|
34
|
34
|
39
|
30
|
24
|
34
|
29
|
21
|
17
|
33
|
34
|
16
|
20
|
36
|
55
|
29
|
18
|
|
2024/04
|
80
|
90
|
64
|
70
|
116
|
89
|
90
|
97
|
205
|
121
|
60
|
31
|
21
|
28
|
183
|
121
|
54
|
57
|
65
|
124
|
77
|
38
|
37
|
35
|
36
|
43
|
58
|
34
|
39
|
57
|
|
|
2024/03
|
48
|
44
|
53
|
59
|
53
|
51
|
75
|
52
|
57
|
61
|
75
|
73
|
89
|
98
|
99
|
123
|
120
|
100
|
54
|
41
|
45
|
21
|
74
|
62
|
67
|
104
|
71
|
243
|
126
|
60
|
84
|
|
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