Macao’s two beaches were closed on Friday until further notice after authorities found excessive levels of E.coli in local waters.
The Macau Post Daily cited a statement from the Marine and Water Bureau, which said that red flags had been hoisted at Hac Sa and Cheoc Van beaches.
The bureau said that water quality at the beaches can be degraded by heavy rainfall, which the city has been experiencing for several days.
[See more: Macao threw away 15 percent more rubbish last year]
Last year, flooding and high rainfall in the upper reaches of the Pearl River caused tonnes of trash to wash up on Hac Sa beach.
Poor waste management in communities along the Pearl River can also affect Macao’s water quality.
Forecasters say the weather will improve this week, with sunny periods and only occasional showers.