Related topics: water · pollution

Waiter there's a black soldier fly in my soup

It may seem a little hard to swallow but the larvae of a waste-eating fly could become a new alternative protein source for humans, according to a University of Queensland scientist.

Heavy metals make soil enzymes 3 times weaker

Heavy metals suppress enzyme activity in the soil by three to 3.5 times and have especially prominent effect on the enzymes that support carbon and sulfur circulation, according to a soil scientist from RUDN, together with ...

Trump administration finalizes coal plant pollution rollback

The Trump administration on Monday finalized its weakening of an Obama-era rule aimed at reducing polluted wastewater from coal-burning power plants that has contaminated streams, lakes and underground aquifers

How to recycle a huge ship – safely and sustainably

Shipbreaking is among the most dangerous jobs in the world, according to the International Labour Organisation. This is the process of breaking up huge old ships into spare parts. It almost always happens in developing countries ...

Pollution linked to antibiotic resistance

Antibiotic resistance is an increasing health problem, but new research suggests it is not only caused by the overuse of antibiotics. It's also caused by pollution.

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Heavy metal (chemistry)

A heavy metal is a member of an ill-defined subset of elements that exhibit metallic properties, which would mainly include the transition metals, some metalloids, lanthanides, and actinides. Many different definitions have been proposed—some based on density, some on atomic number or atomic weight, and some on chemical properties or toxicity. The term heavy metal has been called "meaningless and misleading" in an IUPAC technical report due to the contradictory definitions and its lack of a "coherent scientific basis". There is an alternative term toxic metal, for which no consensus of exact definition exists either. As discussed below, depending on context, heavy metal can include elements lighter than carbon and can exclude some of the heaviest metals. Heavy metals occur naturally in the ecosystem with large variations in concentration. Nowadays anthropogenic sources of heavy metals, i.e. pollution, have been introduced to the ecosystem. Waste derived fuels are especially prone to contain heavy metals so they should be a central concern in a consideration of their use.

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