Air Quality
Excellent
No health implications.
6
PM2.5
21
PM10
62
O3
0.5
CO
7
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Jul
64
Good
Tue
22 Jul
63
Good
Wed
23 Jul
59
Good
Thu
24 Jul
52
Good
Fri
25 Jul
52
Good
Sat
26 Jul
50
Excellent
Sun
27 Jul
28
Excellent
Air quality in the last 12 months (Haian)
|
2025/06
|
23
|
8
|
44
|
67
|
61
|
54
|
39
|
17
|
17
|
25
|
18
|
22
|
18
|
25
|
25
|
40
|
42
|
50
|
38
|
23
|
16
|
19
|
18
|
21
|
47
|
52
|
29
|
26
|
25
|
36
|
|
|
2025/05
|
54
|
58
|
51
|
32
|
30
|
66
|
63
|
44
|
14
|
34
|
43
|
56
|
55
|
52
|
68
|
22
|
60
|
57
|
62
|
54
|
29
|
37
|
29
|
49
|
52
|
51
|
49
|
43
|
50
|
60
|
73
|
|
2025/04
|
50
|
65
|
50
|
55
|
65
|
63
|
85
|
78
|
88
|
65
|
70
|
114
|
87
|
59
|
53
|
61
|
62
|
71
|
59
|
37
|
43
|
39
|
58
|
72
|
53
|
50
|
43
|
39
|
60
|
62
|
|
|
2025/03
|
67
|
67
|
20
|
12
|
36
|
39
|
59
|
76
|
63
|
41
|
73
|
59
|
46
|
43
|
33
|
45
|
52
|
40
|
51
|
69
|
59
|
63
|
74
|
77
|
93
|
86
|
103
|
44
|
83
|
38
|
43
|
|
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
|
|
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