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
21 May
Thu
22 May
Fri
23 May
Sat
24 May
Sun
25 May
Mon
26 May
Tue
27 May
Real-time AQI (Monitoring Station in Kunshan)
震川中学
6340
PM2.5
75 *
PM10
45
O3
0.6
CO
14
SO2
56
NO2
昆山实验小学
8260 *
PM2.5
75
PM10
43
O3
0.8
CO
9
SO2
66
NO2
Air quality in the last 12 months (Kunshan)
|
2025/04
|
48
|
65
|
47
|
45
|
67
|
67
|
64
|
64
|
77
|
86
|
68
|
98
|
89
|
72
|
52
|
56
|
62
|
61
|
60
|
42
|
44
|
49
|
57
|
76
|
53
|
34
|
39
|
53
|
44
|
51
|
|
|
2025/03
|
41
|
57
|
21
|
22
|
23
|
35
|
55
|
70
|
39
|
44
|
60
|
30
|
35
|
40
|
24
|
42
|
46
|
41
|
43
|
56
|
57
|
60
|
65
|
61
|
81
|
83
|
69
|
53
|
65
|
36
|
37
|
|
2025/02
|
25
|
63
|
73
|
70
|
51
|
37
|
52
|
33
|
44
|
53
|
32
|
81
|
44
|
34
|
75
|
98
|
58
|
42
|
48
|
29
|
33
|
61
|
66
|
75
|
94
|
118
|
130
|
63
|
|||
|
2025/01
|
73
|
49
|
57
|
46
|
81
|
92
|
69
|
70
|
31
|
43
|
61
|
71
|
95
|
113
|
40
|
59
|
75
|
78
|
103
|
167
|
139
|
47
|
42
|
41
|
29
|
47
|
50
|
44
|
94
|
59
|
42
|
|
2024/12
|
62
|
83
|
72
|
35
|
59
|
129
|
143
|
30
|
42
|
39
|
57
|
45
|
66
|
67
|
61
|
62
|
80
|
72
|
35
|
55
|
83
|
46
|
40
|
47
|
78
|
129
|
49
|
58
|
68
|
75
|
81
|
|
2024/11
|
9
|
53
|
72
|
66
|
28
|
23
|
25
|
26
|
30
|
35
|
44
|
44
|
51
|
37
|
67
|
42
|
23
|
26
|
26
|
29
|
60
|
80
|
18
|
26
|
33
|
37
|
55
|
65
|
50
|
59
|
|
|
2024/10
|
17
|
27
|
20
|
19
|
17
|
11
|
11
|
38
|
37
|
63
|
72
|
60
|
21
|
34
|
57
|
32
|
30
|
36
|
24
|
37
|
28
|
43
|
38
|
24
|
28
|
14
|
14
|
55
|
20
|
27
|
22
|
|
2024/09
|
34
|
36
|
21
|
24
|
26
|
38
|
51
|
34
|
18
|
31
|
10
|
22
|
14
|
17
|
20
|
13
|
15
|
19
|
19
|
12
|
20
|
28
|
25
|
31
|
40
|
16
|
25
|
30
|
33
|
34
|
|
|
2024/08
|
28
|
29
|
40
|
33
|
39
|
32
|
35
|
35
|
33
|
39
|
42
|
35
|
34
|
23
|
21
|
34
|
23
|
17
|
16
|
24
|
23
|
36
|
33
|
26
|
27
|
25
|
36
|
29
|
16
|
24
|
29
|
|
2024/07
|
32
|
23
|
24
|
29
|
32
|
37
|
32
|
35
|
35
|
27
|
22
|
27
|
28
|
44
|
54
|
26
|
34
|
31
|
33
|
31
|
34
|
29
|
21
|
19
|
25
|
23
|
22
|
19
|
18
|
18
|
26
|
|
2024/06
|
38
|
22
|
40
|
44
|
36
|
18
|
18
|
28
|
29
|
24
|
17
|
32
|
54
|
36
|
29
|
27
|
19
|
20
|
24
|
23
|
37
|
23
|
19
|
28
|
30
|
21
|
12
|
19
|
28
|
21
|
|
|
2024/05
|
38
|
36
|
33
|
36
|
29
|
45
|
57
|
38
|
23
|
36
|
54
|
64
|
70
|
44
|
43
|
34
|
44
|
35
|
31
|
28
|
24
|
39
|
26
|
25
|
21
|
31
|
23
|
22
|
28
|
39
|
58
|
|
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