Singapore, 19 September 2021 Last Updated on 19 Sep 2021 1PM Next update at 6AM North 6 µg/m3 Normal South 4 µg/m3 Normal East 7 µg/m3 Normal West 4 µg/m3 Normal Central 5 µg/m3 Normal Legends: 0 - 55: Normal 😄56 - 150: Elevated 😥151 - 250: High 😱Above 250: Very High 🤯