Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
PM2.5
PM10
O3
CO
SO2
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
25 May
Mon
26 May
Tue
27 May
Wed
28 May
Thu
29 May
Fri
30 May
Sat
31 May
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)
|
2025/04
|
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
|
|
|
2024/05
|
36
|
34
|
28
|
34
|
28
|
48
|
56
|
37
|
32
|
41
|
43
|
76
|
78
|
53
|
43
|
32
|
49
|
41
|
27
|
26
|
24
|
33
|
32
|
24
|
23
|
30
|
20
|
25
|
29
|
31
|
48
|
|
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