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Preventing water crises
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Preventing water crises

Giant dead zone in the Gulf of Mexico

Dead zone areas in the region are not new phenomena, but in 2019, the area affected by hypoxia, a condition of low oxygen that can no longer support any form of life has grown much larger than expected, and the cause is likely to be human activities.

This year, researchers found an astonishingly large, 3360 square kilometre dead zone in the Gulf of Mexico, where the Mississippi River meats the Atlantic Ocean. The zone, which is larger than Luxembourg, is the second largest ever detected in the region by marine biologists.

Although low-oxygen water conditions can arise due to natural causes as well, over recent decades, human activities have rendered the phenomenon much worse. The changes in the Gulf are caused by the Mississippi River, which, as the country’s longest river, almost bisects the United States completely as it flows north to south through ten states.

During its journey, the river picks up tremendous amounts of agricultural waste, particularly phosphorus and nitrogen, which have a devastating effect on marine life as they cause eutrophication and hypoxic conditions.

Sunset over the Gulf of Mexico Photo: Shutterstock
Further information: IFLScience

Hungarian water treatment plant in Vietnam

It was announced in 2010 that the Vietnamese government would like to build a water treatment plant in Central Vietnam. Hungary is famous for its water treatment technology so they decided on a Hungarian partner.

The Biopolus BioMakery in the Netherlands

The Trappist monks of Koningshoeven Abbey have been brewing beer since 1881, and in recent years, they have also been baking bread and making chocolate, honey and cheese. The water to be treated is the wastewater from these brewing and manufacturing activities, together with the municipal wastewater from the Abbey and the visiting centre.

Over two tonnes of golf balls collected from Monterey Bay

Specialists believe almost 30 kilograms of microplastics has eroded from such a quantity of golf balls into the water.

Algal blooms grow more severe in the great lakes of the world

Over the last three decades, summer algal blooms in all large fresh-water lakes around the world have grown more severe – this is the conclusion of a global study, the longest ever of its kind, conducted by researchers from the Carnegie Institution for Science and NASA. 

The Pacific cleanup may succeed

The system created by a Dutch inventor called System 101, whose first trial run, conducted a year ago, had failed, has started collecting plastic waste on the Pacific again.

Hungarian innovation to filter pharmaceutical residues

Many studies worldwide have shown that the active compounds of medications are released into the environment with wastewater and can easily be reintroduced into the human food chain from there. Filtering these residues out is an increasingly acute concern, but, thankfully, the world of science has already responded to the problem.

Garbage from Asia has inundated an island in the middle of the Atlantic

Researchers from Canada and Africa have found a massive amount of plastic bottles, originating form Asia, mainly from China, on Inaccessible Island, located in the South Atlantic Ocean. The bottles were probably discarded into the water and then washed up on the island from cargo ships passing the region.

Pharmaceutical residues in Hungarian waters

In Hungary, too, the active ingredients of various medications are discharged continuously into the environment with wastewater, so they can now be detected in surface and underground waters as well as in soils.

What can we do against pharmaceutical residues in our waters?

After being introduced into human and animal organisms, some pharmaceutical compounds are secreted via urine unchanged, and then, through wastewater, those compounds may reach surface waters that serve as drinking water supplies, representing a risk for both aquatic ecosystems and for the purity of drinking water.

Microplastics from an unexpected source

We’ve known for a long time that plastic food packaging, wearing car tyres and clothing made of synthetic fibres are all sources of microplastic pollution. However, a new study has identified a new source of pollution in our kitchens, or more precisely in our teacups.

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