Air Quality
Excellent
No health implications.
12
PM2.5
24
PM10
45
O3
0.5
CO
7
SO2
20
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 May
50
Excellent
Fri
23 May
50
Excellent
Sat
24 May
49
Excellent
Sun
25 May
76
Good
Mon
26 May
74
Good
Tue
27 May
38
Excellent
Wed
28 May
35
Excellent
Air quality in the last 12 months (Honghuagang)
|
2025/04
|
37
|
48
|
56
|
59
|
60
|
65
|
65
|
77
|
77
|
72
|
60
|
111
|
187
|
91
|
78
|
68
|
49
|
59
|
23
|
27
|
42
|
25
|
32
|
23
|
38
|
30
|
19
|
31
|
42
|
16
|
|
|
2025/03
|
54
|
82
|
52
|
31
|
31
|
31
|
43
|
47
|
36
|
38
|
33
|
55
|
48
|
37
|
28
|
31
|
30
|
33
|
33
|
46
|
55
|
59
|
61
|
59
|
64
|
60
|
58
|
64
|
30
|
29
|
39
|
|
2025/02
|
37
|
30
|
39
|
43
|
46
|
37
|
39
|
45
|
50
|
60
|
51
|
69
|
50
|
26
|
38
|
47
|
44
|
38
|
33
|
27
|
30
|
26
|
33
|
41
|
30
|
49
|
48
|
54
|
|||
|
2025/01
|
92
|
97
|
90
|
82
|
87
|
94
|
62
|
53
|
40
|
52
|
57
|
56
|
58
|
76
|
67
|
70
|
60
|
54
|
61
|
80
|
88
|
88
|
82
|
60
|
32
|
31
|
51
|
52
|
146
|
52
|
51
|
|
2024/12
|
80
|
88
|
59
|
37
|
32
|
41
|
38
|
39
|
33
|
23
|
35
|
45
|
64
|
62
|
52
|
60
|
69
|
63
|
74
|
92
|
114
|
69
|
62
|
79
|
81
|
60
|
92
|
82
|
79
|
53
|
62
|
|
2024/11
|
56
|
48
|
68
|
52
|
52
|
64
|
70
|
70
|
59
|
59
|
58
|
61
|
65
|
58
|
70
|
56
|
43
|
37
|
38
|
44
|
40
|
45
|
44
|
36
|
38
|
44
|
46
|
44
|
47
|
60
|
|
|
2024/10
|
23
|
29
|
41
|
44
|
45
|
48
|
43
|
35
|
38
|
52
|
55
|
51
|
37
|
33
|
37
|
34
|
34
|
44
|
25
|
24
|
31
|
32
|
39
|
45
|
46
|
51
|
58
|
57
|
56
|
60
|
60
|
|
2024/09
|
40
|
40
|
42
|
33
|
37
|
43
|
37
|
31
|
26
|
36
|
41
|
40
|
41
|
35
|
32
|
44
|
35
|
35
|
41
|
45
|
44
|
38
|
40
|
43
|
51
|
58
|
53
|
49
|
38
|
27
|
|
|
2024/08
|
20
|
19
|
19
|
15
|
20
|
25
|
20
|
27
|
27
|
30
|
40
|
52
|
41
|
39
|
40
|
36
|
34
|
34
|
41
|
41
|
34
|
39
|
44
|
41
|
39
|
39
|
38
|
30
|
33
|
36
|
34
|
|
2024/07
|
22
|
23
|
18
|
16
|
18
|
17
|
22
|
19
|
19
|
21
|
19
|
24
|
20
|
19
|
17
|
19
|
21
|
19
|
13
|
19
|
18
|
20
|
20
|
21
|
24
|
32
|
30
|
21
|
16
|
19
|
24
|
|
2024/06
|
36
|
26
|
23
|
21
|
37
|
31
|
23
|
22
|
19
|
24
|
24
|
23
|
32
|
35
|
36
|
31
|
24
|
20
|
19
|
24
|
27
|
23
|
23
|
27
|
30
|
19
|
12
|
17
|
12
|
27
|
|
|
2024/05
|
30
|
31
|
25
|
27
|
48
|
46
|
35
|
48
|
44
|
40
|
27
|
27
|
34
|
47
|
39
|
45
|
49
|
29
|
24
|
33
|
19
|
25
|
40
|
44
|
38
|
27
|
36
|
36
|
35
|
24
|
34
|
|
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