Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
36
PM2.5
60
*
PM10
30
O3
0.7
CO
5
SO2
33
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
25 Apr
56
Good
Fri
26 Apr
74
Good
Sat
27 Apr
94
Good
Sun
28 Apr
100
Good
Mon
29 Apr
65
Good
Tue
30 Apr
50
Excellent
Wed
1 May
59
Good
Air quality in the last 12 months (Bishan)
|
2024/02
|
113
|
85
|
46
|
37
|
41
|
53
|
50
|
50
|
54
|
122
|
102
|
95
|
96
|
106
|
39
|
38
|
42
|
65
|
97
|
185
|
57
|
20
|
27
|
37
|
50
|
43
|
58
|
73
|
79
|
||
|
2024/01
|
78
|
83
|
69
|
71
|
90
|
126
|
113
|
88
|
87
|
97
|
101
|
117
|
133
|
147
|
159
|
57
|
44
|
57
|
54
|
51
|
31
|
23
|
34
|
40
|
61
|
61
|
71
|
86
|
90
|
98
|
104
|
|
2023/12
|
27
|
40
|
55
|
56
|
54
|
84
|
78
|
108
|
118
|
131
|
94
|
37
|
44
|
59
|
42
|
56
|
55
|
59
|
65
|
60
|
63
|
77
|
98
|
100
|
110
|
128
|
136
|
170
|
207
|
157
|
164
|
|
2023/11
|
52
|
59
|
64
|
45
|
45
|
56
|
53
|
55
|
76
|
50
|
28
|
25
|
20
|
37
|
40
|
46
|
58
|
68
|
76
|
73
|
95
|
92
|
119
|
143
|
125
|
62
|
56
|
82
|
75
|
52
|
|
|
2023/10
|
35
|
23
|
30
|
21
|
17
|
17
|
24
|
32
|
31
|
36
|
40
|
31
|
33
|
41
|
53
|
62
|
70
|
79
|
24
|
40
|
51
|
55
|
60
|
87
|
81
|
54
|
21
|
34
|
52
|
51
|
53
|
|
2023/09
|
56
|
56
|
61
|
76
|
63
|
43
|
41
|
35
|
38
|
48
|
56
|
19
|
29
|
43
|
44
|
56
|
51
|
65
|
56
|
23
|
21
|
19
|
17
|
20
|
18
|
30
|
38
|
36
|
31
|
38
|
|
|
2023/08
|
33
|
28
|
27
|
36
|
39
|
32
|
29
|
32
|
32
|
35
|
45
|
27
|
29
|
39
|
35
|
44
|
49
|
58
|
51
|
53
|
38
|
54
|
58
|
48
|
32
|
22
|
26
|
31
|
42
|
37
|
54
|
|
2023/07
|
33
|
26
|
30
|
27
|
44
|
42
|
54
|
53
|
44
|
40
|
39
|
37
|
38
|
25
|
39
|
60
|
58
|
50
|
30
|
29
|
20
|
42
|
54
|
29
|
28
|
31
|
19
|
18
|
27
|
38
|
54
|
|
2023/06
|
24
|
25
|
20
|
21
|
28
|
47
|
43
|
54
|
63
|
56
|
60
|
48
|
42
|
48
|
37
|
28
|
32
|
43
|
60
|
61
|
33
|
37
|
47
|
38
|
45
|
55
|
38
|
31
|
30
|
41
|
|
|
2023/05
|
64
|
63
|
67
|
49
|
49
|
42
|
29
|
30
|
36
|
38
|
36
|
47
|
51
|
73
|
74
|
56
|
57
|
54
|
70
|
68
|
49
|
29
|
39
|
44
|
55
|
74
|
80
|
64
|
57
|
54
|
37
|
|
2023/04
|
48
|
54
|
47
|
31
|
33
|
49
|
63
|
66
|
72
|
86
|
75
|
57
|
63
|
71
|
63
|
74
|
72
|
50
|
61
|
47
|
64
|
23
|
19
|
24
|
36
|
51
|
43
|
52
|
64
|
66
|
|
|
2023/03
|
85
|
100
|
83
|
68
|
85
|
99
|
79
|
94
|
89
|
47
|
53
|
58
|
36
|
45
|
75
|
57
|
37
|
32
|
38
|
35
|
50
|
66
|
36
|
25
|
26
|
31
|
28
|
34
|
51
|
48
|
55
|
|
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