Air Quality
Excellent
No health implications.
32
PM2.5
47
PM10
45
O3
0.7
CO
6
SO2
21
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 May
98
Good
Fri
16 May
73
Good
Sat
17 May
107
Light
Sun
18 May
94
Good
Mon
19 May
114
Light
Tue
20 May
121
Light
Wed
21 May
42
Excellent
Air quality in the last 12 months (Haian)
|
2025/02
|
26
|
69
|
82
|
56
|
64
|
39
|
53
|
32
|
45
|
64
|
42
|
85
|
66
|
53
|
101
|
137
|
62
|
50
|
43
|
31
|
32
|
54
|
50
|
70
|
100
|
134
|
151
|
104
|
|||
|
2025/01
|
71
|
48
|
58
|
48
|
98
|
93
|
64
|
66
|
36
|
38
|
71
|
88
|
100
|
118
|
51
|
64
|
88
|
87
|
123
|
173
|
107
|
43
|
32
|
30
|
32
|
45
|
58
|
73
|
163
|
64
|
53
|
|
2024/12
|
82
|
96
|
49
|
39
|
91
|
134
|
139
|
37
|
51
|
43
|
67
|
46
|
74
|
55
|
65
|
73
|
97
|
61
|
35
|
63
|
86
|
46
|
51
|
71
|
98
|
112
|
57
|
58
|
79
|
96
|
73
|
|
2024/11
|
16
|
55
|
65
|
60
|
40
|
36
|
32
|
29
|
35
|
42
|
46
|
53
|
44
|
42
|
43
|
28
|
31
|
29
|
26
|
42
|
59
|
69
|
38
|
31
|
22
|
40
|
68
|
68
|
52
|
67
|
|
|
2024/10
|
17
|
26
|
19
|
28
|
23
|
11
|
12
|
35
|
36
|
61
|
75
|
67
|
28
|
28
|
60
|
46
|
30
|
34
|
25
|
27
|
15
|
28
|
37
|
37
|
35
|
23
|
28
|
39
|
37
|
35
|
31
|
|
2024/09
|
36
|
36
|
18
|
23
|
26
|
23
|
31
|
23
|
16
|
23
|
12
|
21
|
20
|
26
|
23
|
18
|
18
|
17
|
18
|
9
|
14
|
22
|
27
|
29
|
29
|
22
|
32
|
27
|
33
|
33
|
|
|
2024/08
|
31
|
28
|
39
|
40
|
35
|
27
|
38
|
32
|
31
|
45
|
49
|
46
|
37
|
19
|
19
|
25
|
25
|
19
|
17
|
20
|
24
|
43
|
45
|
28
|
20
|
21
|
23
|
22
|
17
|
22
|
22
|
|
2024/07
|
21
|
23
|
27
|
30
|
31
|
31
|
28
|
31
|
34
|
21
|
39
|
34
|
17
|
18
|
38
|
53
|
42
|
25
|
39
|
37
|
30
|
37
|
36
|
23
|
20
|
22
|
22
|
20
|
22
|
26
|
29
|
|
2024/06
|
41
|
41
|
55
|
37
|
29
|
24
|
30
|
35
|
48
|
47
|
27
|
20
|
39
|
34
|
28
|
33
|
19
|
31
|
19
|
21
|
32
|
18
|
34
|
44
|
55
|
30
|
16
|
23
|
16
|
15
|
|
|
2024/05
|
38
|
41
|
30
|
34
|
26
|
51
|
51
|
45
|
43
|
43
|
49
|
95
|
89
|
62
|
53
|
50
|
56
|
46
|
30
|
25
|
22
|
33
|
32
|
25
|
27
|
37
|
21
|
30
|
32
|
29
|
39
|
|
2024/04
|
72
|
31
|
29
|
55
|
47
|
47
|
41
|
51
|
66
|
59
|
52
|
29
|
17
|
24
|
33
|
55
|
92
|
84
|
92
|
25
|
23
|
26
|
41
|
59
|
53
|
32
|
15
|
15
|
24
|
46
|
|
|
2024/03
|
50
|
62
|
76
|
47
|
27
|
61
|
65
|
86
|
94
|
62
|
71
|
97
|
62
|
64
|
47
|
54
|
72
|
48
|
89
|
85
|
62
|
74
|
69
|
38
|
22
|
47
|
60
|
57
|
64
|
79
|
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