Air Quality
Excellent
No health implications.
12
PM2.5
24
PM10
38
O3
0.5
CO
6
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
8 Jul
44
Excellent
Wed
9 Jul
44
Excellent
Thu
10 Jul
47
Excellent
Fri
11 Jul
51
Good
Sat
12 Jul
64
Good
Sun
13 Jul
68
Good
Mon
14 Jul
16
Excellent
Air quality in the last 12 months (Bishan)
|
2025/06
|
30
|
27
|
41
|
48
|
56
|
57
|
42
|
25
|
20
|
34
|
37
|
38
|
35
|
39
|
34
|
38
|
29
|
25
|
17
|
26
|
26
|
20
|
20
|
21
|
16
|
27
|
26
|
25
|
24
|
20
|
|
|
2025/05
|
49
|
60
|
86
|
68
|
48
|
76
|
56
|
39
|
61
|
61
|
54
|
54
|
61
|
73
|
86
|
78
|
66
|
78
|
66
|
64
|
60
|
42
|
58
|
65
|
47
|
46
|
30
|
27
|
31
|
31
|
27
|
|
2025/04
|
37
|
48
|
55
|
57
|
76
|
79
|
67
|
64
|
75
|
71
|
54
|
266
|
250
|
151
|
109
|
78
|
77
|
65
|
49
|
37
|
46
|
45
|
48
|
41
|
50
|
53
|
43
|
43
|
48
|
38
|
|
|
2025/03
|
102
|
98
|
36
|
30
|
25
|
24
|
39
|
54
|
69
|
60
|
56
|
84
|
86
|
64
|
42
|
37
|
29
|
30
|
42
|
52
|
66
|
79
|
64
|
59
|
60
|
60
|
98
|
80
|
23
|
31
|
35
|
|
2025/02
|
100
|
66
|
38
|
34
|
63
|
37
|
34
|
39
|
54
|
61
|
80
|
80
|
36
|
43
|
45
|
50
|
56
|
45
|
50
|
46
|
45
|
40
|
39
|
44
|
72
|
70
|
69
|
73
|
|||
|
2025/01
|
140
|
187
|
188
|
172
|
131
|
121
|
89
|
46
|
51
|
47
|
51
|
63
|
95
|
111
|
106
|
97
|
109
|
134
|
115
|
123
|
148
|
200
|
239
|
108
|
40
|
42
|
53
|
75
|
172
|
192
|
118
|
|
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
|
|
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