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Search results for nanograms

Earth Sciences 6 hours ago

Pollution from the Tijuana river affects air quality in San Diego, finds study

The 120-mile Tijuana River flows from Baja California into the United States and discharges millions of gallons of wastewater—including sewage, industrial waste and runoff—into the Pacific Ocean every day, making it the ...

Bio & Medicine May 14, 2025

MXene-antibody sensor enables low-cost, accurate vitamin D detection in remote regions

An electrochemical sensor designed to address a global health issue that particularly impacts people in the Middle East and North Africa (MENA) has been created by a multidisciplinary team at KAUST. The sensor detects low ...

Environment May 1, 2025

The EU has banned BPAs: Here's what you need to know about this common, toxic compound

The European Union has banned the use of bisphenol A (BPA). This came into effect with Regulation 2024/3190 in late 2024, but it took over 20 years of scientific study to cut out this silent toxin. BPA slowly enters our bodies ...

Environment Apr 15, 2025

Airborne microplastics infiltrate plant leaves, raising environmental concerns

Nankai University researchers have found that plant leaves can directly absorb microplastics (MPs) from the atmosphere, leading to a widespread presence of plastic polymers in vegetation. Concentrations of polyethylene terephthalate ...

Environment Jan 28, 2025

Aerosol monitoring site collects data in aftermath of urban firestorm

On January 9, approximately a full day after the Eaton fire devastated the foothill area of Altadena, north of the Caltech campus in Pasadena, California, several specialized scientific instruments in a shipping container ...

Environment Jan 23, 2025

French cities' tap water contaminated with harmful chemicals, study reveals

A type of "forever chemical" linked to health problems and birth defects has been found in the tap water of many French cities and towns including Paris, according to a study released on Thursday.

Earth Sciences Jan 20, 2025

Mountaineers help scientists find nanoplastics in remote glaciers

Imagine a glacier. Are you thinking "glittering snow" or "plastic pollution?" A new study underscores the pervasive nature of plastic pollution, even in such remote and apparently pristine areas.

Environment Jan 9, 2025

Arsenic's atmospheric journey: New methods reveal environmental toxin's transport pathways

On the Pic du Midi in the Pyrenees, ETH researchers have analyzed particulate matter, clouds and rainwater for traces of arsenic. Using newly developed measurement methods, they have elucidated the transport pathways of the ...

Plants & Animals Jan 7, 2025

Spiders 'smell' with their legs, new research finds

Spiders have always lived alongside humans, so it's surprising how much we still don't know about them. One long-standing mystery was related to how spiders detect smells. Now, our latest research has finally uncovered the ...

Space Exploration Dec 16, 2024

Antimatter propulsion is still far away, but it could change everything

Getting places in space quickly has been the goal of propulsion research for a long time. Rockets, our most common means of doing so, are great for providing lots of force but are extraordinarily inefficient. Other options ...

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