Air Quality
Excellent
No health implications.
12
PM2.5
36
PM10
116
O3
0.3
CO
7
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 May
76
Good
Mon
5 May
54
Good
Tue
6 May
76
Good
Wed
7 May
65
Good
Thu
8 May
66
Good
Fri
9 May
43
Excellent
Sat
10 May
40
Excellent
Air quality in the last 12 months (Zhenhai)
|
2025/02
|
18
|
44
|
64
|
57
|
43
|
43
|
54
|
35
|
37
|
50
|
27
|
66
|
44
|
42
|
51
|
64
|
66
|
34
|
51
|
44
|
26
|
41
|
46
|
80
|
91
|
98
|
75
|
33
|
|||
|
2025/01
|
72
|
62
|
57
|
54
|
63
|
91
|
79
|
83
|
46
|
37
|
62
|
74
|
84
|
73
|
59
|
53
|
70
|
75
|
82
|
132
|
144
|
59
|
41
|
48
|
37
|
37
|
42
|
34
|
89
|
48
|
31
|
|
2024/12
|
54
|
68
|
77
|
50
|
39
|
64
|
96
|
30
|
41
|
56
|
29
|
64
|
51
|
79
|
60
|
60
|
65
|
77
|
33
|
58
|
82
|
63
|
54
|
46
|
66
|
97
|
44
|
58
|
58
|
66
|
83
|
|
2024/11
|
8
|
29
|
52
|
50
|
31
|
24
|
21
|
22
|
26
|
20
|
29
|
31
|
48
|
33
|
27
|
16
|
15
|
22
|
22
|
24
|
38
|
56
|
31
|
34
|
33
|
27
|
43
|
57
|
47
|
52
|
|
|
2024/10
|
21
|
22
|
17
|
20
|
19
|
13
|
11
|
40
|
40
|
53
|
69
|
56
|
42
|
45
|
53
|
34
|
38
|
37
|
24
|
34
|
45
|
36
|
30
|
16
|
25
|
15
|
16
|
36
|
29
|
24
|
19
|
|
2024/09
|
33
|
32
|
27
|
25
|
22
|
32
|
40
|
30
|
28
|
28
|
15
|
20
|
15
|
19
|
19
|
11
|
15
|
21
|
18
|
14
|
17
|
25
|
26
|
32
|
44
|
35
|
24
|
36
|
36
|
20
|
|
|
2024/08
|
20
|
29
|
33
|
30
|
25
|
28
|
32
|
30
|
27
|
27
|
32
|
48
|
40
|
29
|
31
|
37
|
28
|
19
|
17
|
18
|
15
|
21
|
27
|
33
|
25
|
21
|
30
|
23
|
25
|
29
|
26
|
|
2024/07
|
31
|
27
|
32
|
23
|
29
|
22
|
26
|
23
|
24
|
30
|
37
|
44
|
36
|
27
|
29
|
15
|
17
|
25
|
24
|
18
|
19
|
14
|
12
|
15
|
20
|
24
|
17
|
14
|
13
|
11
|
16
|
|
2024/06
|
30
|
24
|
37
|
57
|
41
|
23
|
30
|
39
|
36
|
22
|
12
|
16
|
32
|
21
|
28
|
32
|
14
|
17
|
17
|
21
|
22
|
28
|
26
|
25
|
19
|
18
|
21
|
18
|
19
|
28
|
|
|
2024/05
|
29
|
36
|
34
|
28
|
36
|
46
|
61
|
54
|
28
|
25
|
33
|
39
|
57
|
46
|
54
|
34
|
28
|
37
|
32
|
25
|
30
|
44
|
29
|
35
|
14
|
17
|
31
|
21
|
33
|
34
|
35
|
|
2024/04
|
59
|
23
|
22
|
28
|
45
|
45
|
55
|
28
|
50
|
56
|
49
|
28
|
33
|
23
|
60
|
62
|
29
|
51
|
89
|
62
|
44
|
33
|
32
|
36
|
25
|
39
|
47
|
21
|
43
|
27
|
|
|
2024/03
|
32
|
57
|
56
|
35
|
38
|
39
|
62
|
87
|
77
|
55
|
40
|
74
|
43
|
65
|
57
|
42
|
57
|
67
|
57
|
100
|
77
|
61
|
64
|
64
|
66
|
29
|
32
|
33
|
44
|
53
|
67
|
|
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