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
19 Apr
Mon
20 Apr
Tue
21 Apr
Wed
22 Apr
Thu
23 Apr
Fri
24 Apr
Sat
25 Apr
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)
|
2026/03
|
24
|
22
|
38
|
22
|
41
|
50
|
40
|
30
|
40
|
29
|
38
|
41
|
66
|
43
|
33
|
47
|
61
|
43
|
53
|
51
|
36
|
50
|
45
|
45
|
81
|
40
|
43
|
46
|
59
|
42
|
46
|
|
2026/02
|
67
|
97
|
53
|
62
|
105
|
62
|
33
|
44
|
40
|
49
|
99
|
111
|
91
|
78
|
103
|
34
|
60
|
97
|
92
|
56
|
52
|
94
|
64
|
20
|
41
|
24
|
19
|
39
|
|||
|
2026/01
|
20
|
32
|
59
|
78
|
110
|
128
|
61
|
93
|
89
|
88
|
60
|
62
|
79
|
88
|
101
|
170
|
97
|
49
|
28
|
26
|
42
|
48
|
74
|
95
|
64
|
26
|
61
|
47
|
39
|
32
|
24
|
|
2025/12
|
99
|
50
|
38
|
43
|
61
|
74
|
112
|
84
|
50
|
38
|
92
|
24
|
35
|
62
|
65
|
66
|
114
|
54
|
49
|
104
|
24
|
25
|
44
|
60
|
46
|
26
|
42
|
80
|
102
|
86
|
26
|
|
2025/11
|
130
|
103
|
20
|
31
|
30
|
39
|
37
|
35
|
25
|
40
|
23
|
35
|
35
|
77
|
51
|
40
|
36
|
39
|
54
|
65
|
88
|
132
|
140
|
104
|
70
|
63
|
163
|
149
|
106
|
97
|
|
|
2025/10
|
42
|
24
|
38
|
29
|
27
|
31
|
44
|
19
|
20
|
30
|
39
|
50
|
63
|
27
|
29
|
25
|
19
|
18
|
27
|
29
|
25
|
25
|
30
|
33
|
34
|
38
|
47
|
24
|
24
|
28
|
29
|
|
2025/09
|
27
|
26
|
30
|
26
|
30
|
28
|
46
|
22
|
19
|
23
|
29
|
33
|
43
|
39
|
30
|
33
|
33
|
20
|
23
|
22
|
23
|
23
|
23
|
17
|
21
|
23
|
34
|
42
|
26
|
34
|
|
|
2025/08
|
35
|
29
|
27
|
32
|
31
|
24
|
19
|
22
|
29
|
36
|
32
|
31
|
21
|
18
|
15
|
22
|
29
|
14
|
22
|
26
|
43
|
38
|
34
|
32
|
27
|
29
|
16
|
17
|
17
|
18
|
21
|
|
2025/07
|
19
|
26
|
32
|
32
|
32
|
24
|
13
|
16
|
19
|
44
|
28
|
19
|
29
|
40
|
41
|
46
|
43
|
30
|
16
|
24
|
21
|
21
|
17
|
22
|
23
|
15
|
17
|
20
|
19
|
9
|
13
|
|
2025/06
|
14
|
11
|
37
|
61
|
42
|
41
|
36
|
20
|
19
|
21
|
25
|
17
|
12
|
31
|
14
|
24
|
48
|
45
|
34
|
22
|
24
|
13
|
13
|
23
|
41
|
44
|
28
|
33
|
28
|
20
|
|
|
2025/05
|
52
|
56
|
48
|
25
|
36
|
71
|
64
|
45
|
19
|
45
|
37
|
48
|
46
|
40
|
52
|
37
|
46
|
65
|
41
|
36
|
25
|
41
|
18
|
46
|
45
|
39
|
29
|
32
|
41
|
48
|
48
|
|
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
|
|
|
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