Air Quality
Light
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
81
*
PM2.5
94
PM10
40
O3
0.8
CO
4
SO2
25
NO2
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
Advise
Children, seniors and individuals with respiratory or heart diseases should reduce sustained and high-intensity outdoor exercises.
Air Quality
Today
20 Jan
117
Light
Tue
21 Jan
129
Light
Wed
22 Jan
136
Light
Thu
23 Jan
131
Light
Fri
24 Jan
99
Good
Sat
25 Jan
44
Excellent
Sun
26 Jan
36
Excellent
Air quality in the last 12 months (Bishan)
|
2024/12
|
80
|
102
|
90
|
89
|
46
|
45
|
42
|
40
|
44
|
64
|
72
|
54
|
58
|
52
|
62
|
79
|
111
|
132
|
105
|
90
|
131
|
88
|
70
|
103
|
125
|
124
|
127
|
125
|
130
|
114
|
107
|
|
2024/11
|
51
|
56
|
72
|
88
|
42
|
47
|
77
|
74
|
42
|
46
|
60
|
65
|
52
|
51
|
53
|
34
|
24
|
24
|
22
|
30
|
43
|
50
|
44
|
31
|
27
|
41
|
46
|
44
|
60
|
72
|
|
|
2024/10
|
19
|
24
|
29
|
41
|
49
|
47
|
48
|
49
|
67
|
96
|
75
|
44
|
56
|
59
|
54
|
60
|
30
|
38
|
47
|
22
|
28
|
32
|
42
|
56
|
83
|
99
|
40
|
57
|
70
|
117
|
116
|
|
2024/09
|
42
|
41
|
27
|
30
|
38
|
39
|
45
|
32
|
28
|
33
|
41
|
37
|
35
|
54
|
32
|
32
|
36
|
37
|
34
|
46
|
34
|
44
|
38
|
53
|
70
|
106
|
49
|
44
|
38
|
17
|
|
|
2024/08
|
30
|
23
|
23
|
25
|
35
|
34
|
27
|
25
|
33
|
42
|
49
|
65
|
60
|
47
|
45
|
41
|
41
|
57
|
42
|
45
|
41
|
36
|
30
|
27
|
23
|
27
|
40
|
35
|
35
|
31
|
32
|
|
2024/07
|
34
|
34
|
38
|
33
|
23
|
37
|
27
|
42
|
37
|
26
|
22
|
29
|
34
|
26
|
28
|
28
|
27
|
37
|
29
|
29
|
26
|
31
|
30
|
23
|
52
|
50
|
38
|
35
|
35
|
34
|
33
|
|
2024/06
|
58
|
30
|
33
|
27
|
35
|
29
|
29
|
34
|
37
|
33
|
40
|
45
|
48
|
54
|
49
|
44
|
37
|
31
|
26
|
31
|
25
|
34
|
41
|
40
|
42
|
35
|
17
|
17
|
28
|
41
|
|
|
2024/05
|
34
|
32
|
27
|
36
|
38
|
43
|
65
|
58
|
56
|
51
|
54
|
53
|
50
|
53
|
37
|
48
|
49
|
48
|
43
|
27
|
23
|
31
|
38
|
45
|
43
|
27
|
39
|
39
|
27
|
35
|
51
|
|
2024/04
|
51
|
37
|
32
|
27
|
25
|
27
|
26
|
27
|
33
|
45
|
46
|
38
|
44
|
49
|
72
|
32
|
32
|
38
|
26
|
43
|
53
|
41
|
34
|
40
|
41
|
40
|
47
|
36
|
24
|
22
|
|
|
2024/03
|
64
|
55
|
60
|
88
|
96
|
91
|
70
|
72
|
69
|
76
|
88
|
65
|
75
|
78
|
55
|
57
|
76
|
27
|
42
|
58
|
67
|
72
|
79
|
65
|
28
|
34
|
36
|
46
|
51
|
50
|
51
|
|
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
|
|
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