Air Quality
Excellent
No health implications.
15
PM2.5
43
PM10
154
O3
0.6
CO
8
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
5 Sep
81
Good
Sun
6 Sep
76
Good
Mon
7 Sep
76
Good
Tue
8 Sep
75
Good
Wed
9 Sep
70
Good
Thu
10 Sep
57
Good
Fri
11 Sep
35
Excellent
Air quality in the last 12 months (Bishan)
|
2026/08
|
33
|
27
|
20
|
24
|
38
|
28
|
40
|
32
|
39
|
40
|
44
|
43
|
43
|
40
|
36
|
40
|
62
|
84
|
37
|
46
|
53
|
58
|
50
|
50
|
50
|
41
|
39
|
36
|
26
|
34
|
47
|
|
2026/07
|
37
|
37
|
39
|
42
|
35
|
35
|
45
|
36
|
35
|
29
|
28
|
33
|
37
|
35
|
34
|
33
|
30
|
31
|
42
|
55
|
54
|
46
|
43
|
41
|
30
|
33
|
32
|
28
|
30
|
30
|
30
|
|
2026/06
|
34
|
43
|
46
|
71
|
57
|
64
|
38
|
25
|
32
|
49
|
51
|
40
|
48
|
50
|
62
|
60
|
41
|
22
|
34
|
40
|
40
|
21
|
26
|
31
|
29
|
18
|
29
|
34
|
26
|
39
|
|
|
2026/05
|
50
|
34
|
46
|
43
|
53
|
47
|
45
|
30
|
45
|
60
|
69
|
59
|
41
|
63
|
54
|
34
|
33
|
28
|
34
|
37
|
35
|
34
|
28
|
32
|
31
|
35
|
36
|
39
|
38
|
48
|
40
|
|
2026/04
|
40
|
39
|
35
|
45
|
53
|
48
|
35
|
38
|
40
|
49
|
44
|
37
|
40
|
39
|
35
|
38
|
51
|
49
|
48
|
88
|
50
|
24
|
39
|
41
|
57
|
55
|
44
|
31
|
23
|
34
|
|
|
2026/03
|
41
|
42
|
36
|
33
|
51
|
46
|
38
|
41
|
33
|
29
|
45
|
46
|
54
|
41
|
28
|
36
|
32
|
26
|
36
|
45
|
47
|
46
|
48
|
35
|
37
|
48
|
40
|
33
|
41
|
36
|
27
|
|
2026/02
|
64
|
84
|
78
|
80
|
94
|
115
|
70
|
53
|
50
|
70
|
65
|
78
|
83
|
87
|
106
|
62
|
97
|
93
|
99
|
80
|
79
|
98
|
104
|
45
|
42
|
51
|
46
|
24
|
|||
|
2026/01
|
24
|
19
|
36
|
45
|
54
|
56
|
64
|
72
|
109
|
160
|
175
|
180
|
157
|
176
|
177
|
186
|
194
|
215
|
121
|
22
|
26
|
58
|
59
|
64
|
76
|
79
|
71
|
85
|
87
|
45
|
45
|
|
2025/12
|
131
|
171
|
76
|
61
|
59
|
67
|
74
|
89
|
128
|
120
|
91
|
106
|
42
|
55
|
63
|
83
|
102
|
105
|
121
|
64
|
37
|
36
|
33
|
47
|
42
|
42
|
55
|
63
|
74
|
89
|
45
|
|
2025/11
|
35
|
42
|
45
|
37
|
38
|
28
|
20
|
23
|
30
|
30
|
38
|
43
|
49
|
55
|
33
|
46
|
26
|
24
|
37
|
50
|
59
|
68
|
51
|
57
|
59
|
56
|
69
|
72
|
97
|
111
|
|
|
2025/10
|
45
|
26
|
32
|
25
|
29
|
32
|
47
|
48
|
30
|
55
|
62
|
40
|
21
|
30
|
28
|
36
|
33
|
21
|
16
|
15
|
17
|
21
|
19
|
33
|
26
|
30
|
32
|
34
|
37
|
35
|
40
|
|
2025/09
|
36
|
50
|
47
|
57
|
64
|
21
|
32
|
16
|
32
|
40
|
29
|
18
|
13
|
24
|
26
|
28
|
41
|
25
|
15
|
18
|
32
|
26
|
22
|
27
|
46
|
32
|
35
|
35
|
18
|
31
|
|
|
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