Ha Long Bay is the most polluted oil in the country

According to the most recent report on the status of pollution in Vietnam's coastal areas, the waters of Ha Long Bay are considered to have the highest level of oil pollution.

Accordingly, Cai Lan Port waters have a time when seawater content reaches 1.75mg / l 6 times higher than TCVN (Temporary Standard: 0.3mg / l) and dozens of times higher than ASEAN standards. Up to one third of the bay area is regularly with an oil content of 1 to 1.73 mg / l. The oil content in sediments along the two banks of Cua Luc reaches the highest level of 752.85mg / kg.

In the naked eye, it can be seen, at Bai Chay Tourist Boat Harbor, Tuan Chau Ship Harbor, anchorage areas for tourist boats at tourist attractions on the Bay, anchorage areas of Vuon Dang, Lan Be and Ben Doan. , B12 petrol port, Cai Lan port, Gieng Day shipbuilding industrial zone . all have oil scattering on the sea surface.

The rapid increase in water transport means that regularly operate on Halong Bay is one of the main causes of oil pollution for the bay. According to scientific statistics, in closed bays, small gasoline-powered vessels emit 70% of the waste oil into the sea.

The National Report on Land-based Marine Pollution in 2004 indicates that the amount of mineral oil and grease discharged into the sea by industrial establishments in Ha Long City is 844 T / year. With an average growth rate of industry of 15% per year, from 2004 to now (2010), the amount of waste oil into the sea of ​​industrial establishments in Ha Long city does not stop at the above figure. Except for B12, which has invested in both wastewater and oil treatment systems, the rest, all production and service facilities with both waste and oil discharge have no treatment system.

It is known that oil pollution causes particularly serious consequences for marine ecosystems, only with oil content of 0.1mg / l in seawater has killed the phytoplankton as food for fish, shrimp and rot. , broken fish eggs, shrimp.