The central city’s environmental protection sub-department has been testing the quality of water samples taken from the ocean beside Đà Nẵng and at waste water discharge outlets after local residents and tourists suffered rashes after swimming at public beaches in recent scorching days.

Mass fish deaths along rivers in the southernmost province of Cà Mau have recurred in Đầm Dơi District, the local People’s Committee reported yesterday.

Đồng Nai Province plans to offer VNĐ10 billion (US$438,115) to fish farmers affected by mass fish deaths on the La Ngà River caused by a natural disaster two weeks ago.

Southern Đồng Nai Province’s agriculture department said the unsual high level of NH4 (Amoni) and NO2 (Nitrite) may be the reason behind Monday’s mass fish deaths on the La Ngà River based on a test done on water sample collected at the site.

Over 1,500 tonnes of fish have been found dead in the southern Đồng Nai Province, causing estimated damage of billions of dong, according to competent authorities.

Efforts to stabilise lives, production and businesses in the central provinces affected by the Formosa-related marine environmental incident have paid off, said Prime Minister Nguyễn Xuân Phúc at a national conference in Quảng Trị Province on May 17.

Hundreds of households living along Khe Cạn Channel in central Đà Nẵng City have been complaining about the foul odour emitting from the polluted canal.

Dozens of fish were found dead in four detention basins in the past few weeks in the coastal province of Quảng Ninh, emanating a stench.

Sharp reduction of oxygen is blamed for the death of over 20 tonnes of fish at Bình Hà 1 Dam’s reservoir in the southern province of Bình Phước’s Đa Kia Commune since Monday.

Agencies in the central province of Hà Tĩnh have been trying to identify the cause of the mass fish deaths in the local coastal breeding cages on Saturday morning.