Search results for nanograms

Earth Sciences Nov 30, 2023

Researchers profile pollutants present in an important river basin in São Paulo state, Brazil

The Piracicaba, Capivari and Jundiaí (PCJ) River Basin comprises 76 municipalities in São Paulo state, Brazil, with more than 5.8 million inhabitants and a drainage area of more than 14,000 square kilometers. These three ...

Analytical Chemistry Nov 27, 2023

Researchers hijack solar cell technology to develop a simple spray test for lead

AMOLF researchers have used the special properties of perovskite semiconductors to develop a simple spray test to demonstrate the presence of lead. Perovskite is a material suitable for use in LEDs and solar cells, for example. ...

Plants & Animals Nov 21, 2023

Critically endangered Victorian dolphins suffering highest known levels of PFAS pollutants, study finds

Dolphins in the waters off Melbourne and Gippsland have been found with the highest concentrations of PFAS chemicals in dolphins reported anywhere in the world, according to new research.

Earth Sciences Nov 16, 2023

Why the Pyrenees' mountain lakes are turning green

I first set foot in the Pyrenees in 2006. Two years later, I began a large-scale survey of mountain lakes and amphibian populations: from east to west, I covered more than 100 mountain lakes located in the eastern Pyrenees ...

Earth Sciences Nov 1, 2023

Human emissions have increased mercury in the atmosphere sevenfold: Study

Humans have increased the concentration of potentially toxic mercury in the atmosphere sevenfold since the beginning of the modern era around 1500 C.E., according to new research from the Harvard John A. Paulson School of ...

Environment Aug 15, 2023

How microplastics end up in the marine atmosphere

Microplastic particles are present in the marine atmosphere even in remote parts of the world. These tiny particles come from land sources but are also re-emitted into the atmosphere from the sea, a study by a team of German ...

Biochemistry May 8, 2023

Examining the adhesion tendency of biofilm-forming bacteria on organic surfaces

A recent study by Tokyo Tech researchers has found that the biofilm-forming bacteria E. coli adheres firmly to hydrophobic and hydrophilic protein-adsorbing self-assembling monolayers (SAMs) and weakly to hydrophilic protein-resisting ...

Environment Apr 14, 2023

Methamphetamine detected in first test in Oceania for airborne drug pollution

Methamphetamine, nicotine, caffeine and tetrahydrocannabinol (THC) were detected in downtown Auckland air in the first study of its type in New Zealand and Australia.

Environment Mar 22, 2023

Trying to solve the 'forever problem' of PFAS pollution

Per- and polyfluoroalkyl substances (PFAS) can be found almost everywhere and in almost everyone and can take more than 1,000 years to break down.

Environment Feb 23, 2023

Global wildlife contaminated by 'forever chemicals'

From pandas to sea lions to tigers, hundreds of wildlife species across the globe are contaminated by potentially harmful "forever chemicals", according to a review of hundreds of peer-reviewed studies.

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