Air Quality
Excellent
No health implications.
20
PM2.5
22
PM10
100
O3
0.5
CO
5
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 May
53
Good
Mon
5 May
80
Good
Tue
6 May
49
Excellent
Wed
7 May
54
Good
Thu
8 May
65
Good
Fri
9 May
68
Good
Sat
10 May
38
Excellent
Air quality in the last 12 months (Honghuagang)
|
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
|
|
2024/04
|
42
|
45
|
28
|
26
|
29
|
25
|
31
|
32
|
46
|
44
|
42
|
35
|
42
|
49
|
58
|
46
|
31
|
24
|
31
|
33
|
48
|
53
|
37
|
46
|
37
|
46
|
32
|
36
|
47
|
27
|
|
|
2024/03
|
57
|
63
|
57
|
51
|
41
|
36
|
58
|
64
|
51
|
59
|
56
|
57
|
37
|
41
|
32
|
34
|
25
|
22
|
41
|
69
|
66
|
61
|
53
|
52
|
42
|
27
|
32
|
39
|
46
|
47
|
51
|
|
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