Air Quality
Excellent
No health implications.
4
PM2.5
13
PM10
28
O3
0.4
CO
4
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Jul
49
Excellent
Sun
20 Jul
41
Excellent
Mon
21 Jul
46
Excellent
Tue
22 Jul
49
Excellent
Wed
23 Jul
46
Excellent
Thu
24 Jul
51
Good
Fri
25 Jul
16
Excellent
Air quality in the last 12 months (Zhenhai)
|
2025/06
|
18
|
20
|
26
|
33
|
28
|
28
|
39
|
42
|
25
|
20
|
15
|
18
|
11
|
17
|
12
|
14
|
35
|
36
|
20
|
16
|
19
|
25
|
20
|
25
|
28
|
26
|
30
|
23
|
19
|
10
|
|
|
2025/05
|
45
|
57
|
58
|
38
|
27
|
63
|
67
|
31
|
20
|
39
|
35
|
37
|
30
|
19
|
23
|
22
|
36
|
48
|
20
|
32
|
21
|
35
|
14
|
44
|
42
|
28
|
19
|
24
|
25
|
48
|
36
|
|
2025/04
|
40
|
56
|
53
|
35
|
52
|
80
|
56
|
58
|
56
|
49
|
48
|
146
|
102
|
80
|
58
|
57
|
55
|
58
|
49
|
59
|
33
|
31
|
38
|
59
|
44
|
38
|
29
|
32
|
33
|
33
|
|
|
2025/03
|
29
|
38
|
37
|
16
|
20
|
26
|
39
|
65
|
49
|
36
|
42
|
28
|
25
|
44
|
17
|
37
|
43
|
46
|
47
|
47
|
49
|
51
|
55
|
58
|
64
|
71
|
59
|
53
|
50
|
52
|
32
|
|
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
|
|
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