Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
6 Jul
Mon
7 Jul
Tue
8 Jul
Wed
9 Jul
Thu
10 Jul
Fri
11 Jul
Sat
12 Jul
Real-time AQI (Monitoring Station in Zhangjiagang)
城北小学
7252 *
PM2.5
63
PM10
68
O3
1.0
CO
11
SO2
32
NO2
张家港市监测站
7051 *
PM2.5
61
PM10
62
O3
0.9
CO
13
SO2
34
NO2
Air quality in the last 12 months (Zhangjiagang)
|
2025/05
|
50
|
56
|
49
|
27
|
33
|
73
|
65
|
42
|
18
|
40
|
41
|
47
|
47
|
45
|
66
|
27
|
52
|
65
|
51
|
38
|
24
|
42
|
20
|
49
|
51
|
42
|
35
|
37
|
53
|
52
|
52
|
|
2025/04
|
45
|
62
|
47
|
53
|
67
|
69
|
75
|
67
|
90
|
84
|
73
|
138
|
97
|
71
|
55
|
52
|
60
|
67
|
63
|
43
|
49
|
48
|
63
|
75
|
55
|
42
|
43
|
53
|
54
|
56
|
|
|
2025/03
|
55
|
65
|
17
|
16
|
25
|
37
|
58
|
70
|
49
|
44
|
68
|
41
|
39
|
40
|
28
|
44
|
49
|
40
|
49
|
58
|
59
|
60
|
67
|
65
|
81
|
79
|
86
|
48
|
72
|
36
|
38
|
|
2025/02
|
21
|
65
|
74
|
63
|
57
|
35
|
55
|
31
|
42
|
54
|
38
|
83
|
58
|
44
|
88
|
118
|
64
|
48
|
48
|
32
|
32
|
53
|
59
|
75
|
96
|
112
|
118
|
97
|
|||
|
2025/01
|
73
|
52
|
58
|
52
|
95
|
87
|
69
|
68
|
31
|
45
|
65
|
74
|
85
|
115
|
49
|
62
|
77
|
75
|
109
|
180
|
126
|
59
|
37
|
38
|
28
|
44
|
57
|
60
|
111
|
60
|
50
|
|
2024/12
|
67
|
82
|
59
|
35
|
68
|
127
|
138
|
36
|
52
|
39
|
62
|
50
|
73
|
62
|
66
|
71
|
86
|
66
|
36
|
61
|
83
|
46
|
47
|
62
|
87
|
114
|
57
|
60
|
67
|
83
|
80
|
|
2024/11
|
11
|
54
|
78
|
71
|
40
|
33
|
30
|
32
|
33
|
42
|
47
|
47
|
48
|
40
|
69
|
38
|
29
|
26
|
25
|
31
|
59
|
76
|
31
|
29
|
26
|
40
|
71
|
68
|
53
|
65
|
|
|
2024/10
|
15
|
25
|
17
|
22
|
20
|
9
|
11
|
35
|
41
|
63
|
77
|
67
|
28
|
31
|
57
|
45
|
32
|
35
|
26
|
32
|
23
|
33
|
42
|
35
|
34
|
23
|
20
|
54
|
33
|
33
|
26
|
|
2024/09
|
29
|
34
|
16
|
20
|
21
|
24
|
45
|
28
|
12
|
25
|
8
|
21
|
17
|
20
|
18
|
10
|
15
|
20
|
15
|
10
|
20
|
25
|
25
|
30
|
37
|
20
|
29
|
30
|
33
|
32
|
|
|
2024/08
|
21
|
24
|
35
|
29
|
30
|
25
|
35
|
26
|
30
|
38
|
37
|
31
|
32
|
18
|
14
|
26
|
22
|
14
|
14
|
17
|
25
|
34
|
37
|
21
|
19
|
20
|
25
|
21
|
14
|
21
|
25
|
|
2024/07
|
15
|
20
|
17
|
26
|
29
|
28
|
24
|
26
|
31
|
17
|
20
|
19
|
13
|
19
|
47
|
43
|
29
|
20
|
30
|
27
|
29
|
28
|
23
|
14
|
13
|
15
|
15
|
11
|
15
|
15
|
20
|
|
2024/06
|
43
|
29
|
42
|
41
|
31
|
16
|
23
|
29
|
33
|
22
|
21
|
26
|
44
|
37
|
31
|
30
|
16
|
20
|
16
|
22
|
34
|
16
|
20
|
32
|
34
|
19
|
15
|
16
|
18
|
14
|
|
|
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
*: primary pollution