Blackish rainwater during haze: Is tap water still safe to drink? Grace Fu answers
Between Oct 5 and 18, Singapore experienced a run of poor air quality, with the 24-hour Pollutant Standards Index (PSI) remaining in the unhealthy to very unhealthy range.And during that period, some residents in Singapore took to social media to share how rainwater collected in their pails were blackish grey, sparking discussions on whether drinking water may be affected.