Air Quality
Excellent
No health implications.
5
PM2.5
18
PM10
15
O3
0.8
CO
9
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Oct
38
Excellent
Fri
30 Oct
41
Excellent
Sat
31 Oct
40
Excellent
Sun
1 Nov
33
Excellent
Mon
2 Nov
39
Excellent
Tue
3 Nov
40
Excellent
Wed
4 Nov
42
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