A new study has evaluated disinfection by-products (DBPs) formed during the treatment of ballast water. As some of the DBPs produced are hazardous, the study concludes that more information is needed to ensure DBPs from treatment methods do not harm human health or aquatic environments.

New research has provided the first conclusive evidence that microplastics ingested by marine wildlife can transfer toxic pollutants to their tissues. The researchers studied lugworms fed on PVC particles contaminated with either widespread marine pollutants or plastic additives and found that these 'earthworms of the sea' absorbed the chemicals into their gut tissue, which reduced their ability to perform essential functions.

Carbon nanotubes (CNT) could be released into the environment as the plastic they are embedded in degrades, a new study suggests. The research found that general wear combined with exposure to UV light and moderate humidity would expose CNTs, posing a potential threat to human health.

A more efficient method for sorting plastic electronics waste containing harmful chemicals is proposed by a new study. The method combines two analytical techniques that together can quickly and accurately detect levels of flame retardants in plastics used by the electronics industry.

Fragments of microplastics are readily incorporated into groups of microscopic algae, altering the rate at which the plastics move through seawater, a recent study has found. In laboratory tests, polystyrene microbeads, which usually sink to the bottom of seawater at a rate of 4 mm a day, sank at a rate of several hundreds of metres a day when part of microalgae aggregates.

A novel approach for identifying and isolating anthropogenic – including microplastic – particles in fish stomachs has been devised by researchers in Belgium. The new method may enable scientists and policymakers to better assess the presence, quantity and composition of particles ingested by marine life, and improve understanding of the environmental effects of marine plastic pollution.

Lithium production has increased dramatically during the past decade. A new study has found that exposure of rainbow trout to lithium results in fast accumulation in plasma and the brain, along with decreased concentrations of ions such as sodium.

Researchers have presented a comprehensive new classification manual of asbestos-containing products (ACP), materials (ACM) and waste (ACW) in a recent study. They also mapped suitable landfill sites for the proper disposal of ACW in Italy and developed guidance on assigning ACW to correct European Waste Catalogue (EWC) codes. The research will help operators engaged in asbestos waste disposal across Europe and should contribute to aims for the total removal of asbestos from the EU.

European policy permits the application of nutrient-rich sewage sludge on agricultural land as a means of recycling1. However, contamination of sludge with microplastics may pose a risk to ecosystems. This study looked at the characteristics of microplastics in sewage sludge after three types of waste-water treatment, finding that anaerobic digestion should be explored as a method of microplastic reduction.

Researchers in Spain have analysed waste water to calculate levels of exposure to phthalates in individuals. The calculations showed that levels of four types of phthalate exceeded safe daily limits in some of the sites studied, with levels of exposure in children being of particular concern. Using the results of waste-water analysis in this way can identify areas where action may need to be taken to lower exposure.

Plastic waste in the environment presents cause for concern, but scientific understanding of its exact impacts is still in its infancy. A team of Dutch scientists has presented recommendations on how to develop a new assessment method which provides clear, specific evidence on the risks of plastic waste. Once developed, this method could inform scientifically sound policies for managing plastic waste.

Advances in nanotechnology mean that a rapidly increasing number of products are being produced using engineered nanomaterials, for example, nano-enabled thermoplastics. Many of these nano-enabled products are destined to reach their end-of-life through waste incineration or accidental fire. Now, an original study has revealed that the presence of nanofiller in thermoplastics significantly enhances both the concentration and toxicity of polycyclic aromatic hydrocarbons (PAHs) produced during thermal decomposition at the product’s end- of-life, resulting in concentrations of total PAHs and more toxic PAHs that are up to eight times higher than those found in pure (non nano-enabled) thermoplastics. This finding has significant environmental health implications.

The presence of disinfection by-products (DBPs) in drinking water is an emerging health concern. DBPs come in many classes and are chemically diverse, making them challenging to monitor. Swedish researchers have evaluated a new method for the simultaneous determination of a broader range of DBPs than typically possible using other available techniques. The method uses gas chromatography (a laboratory technique that separates and analyses vaporisable compounds in a mixture), together with a halogen-specific detector (XSD). Having been tested in real water samples from two municipal waterworks in Sweden, the method has been optimised for the simultaneous determination of a wide range of neutral DBPs.

Nano-sized particles of plastic can be more damaging to marine species than larger sized microplastics, a new study shows. Lab tests revealed that nanoplastics can damage cell membranes in tiny marine creatures called rotifers (Rotifera), disrupting their natural defences against toxicants. The researchers found that rotifers that had been exposed to nanoparticles of polystyrene were significantly more susceptible to the lethal effects of persistent organic pollutants (POPs).

Microplastics, polymer-based particles of less than five millimetres in size, have become an archetypal sign of anthropogenic waste and environmental pollution. This German study explores how microplastics in soil affect plants, screening the potential effects of six different microplastics on the soil environment, plant traits and function using a terrestrial plant-soil model based on the spring onion (Allium fistulosum). The researchers find that plants react strongly to microplastic exposure, with significant changes observed in the physical parameters of soil, plant root and leaf traits and plant biomass.

The most important findings from over a decade of research into environmentally persistent free radicals (EPFRs), a new class of environmental pollutants, are presented in a recent review. These toxic particles could be partly responsible for some of the health problems, such as asthma, associated with particulate matter (PM) exposure. The researchers issue a warning that some engineered nanomaterials (ENMs) could increase levels of EPFRs in the environment.

Scientists have discovered a novel way to produce bioplastic, which could be more cost-effective on a commercial scale than current techniques. The new technique, which uses microscopic algae to synthesise a widely used polyester, has the potential to revolutionise plastic production, say the researchers.

Myke has read _Triggers_, Grey tries to deal with a backlog, and they have amazing new merch available.

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THE craftsmanship of the 1900s is on display here in this charming, two-level West Hobart home.

The post Launching Australia’s first digital shipbuilding class appeared first on The Lead SA.

Last week, a brand new and highly topical exhibition of contemporary art opened to the public at the University of Hertfordshire. Visually stunning and extremely thought-provoking, Plastic Matter is a unique group exhibition that explores plastic’s potential to become something more treasured, looks at how hastily we consume and dispose of it, its environmental impact and its future role in society.

The post Aussie dairy plan to trace milk from grass to glass appeared first on The Lead SA.

Steven Finn feels Middlesex’s Vitality Blast side possess similar qualities to the team that clinched the county’s first and only T20 triumph 11 years ago.

Dawid Malan’s imperious unbeaten knock of 91 steered Middlesex to a rare Vitality Blast victory against Gloucestershire at Radlett as they climbed to second place in the South Group.

Driving up the long curved path up to The Grove always feels like a treat, and none more so than on last Friday evening when I was invited to try the hotel’s newly refurbished restaurant.

If The Florist is cool and charming, its new downstairs neighbour, Las Iguanas, is all about fun and colour.

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000
ACCA62 TJSJ 302335
TWOSPN

Perspectiva sobre las Condiciones del Tiempo Tropical
Emitido por El Centro Nacional de Huracanes Miami, FL
Traducido por el Servicio Nacional de Meteorologia San Juan, PR
700 PM EST sabado 30 de noviembre de 2019

Para el Atlantico Norte...Mar Caribe y Golfo de Mexico:

No se espera formacion de ciclon tropical durante los proximos 5
dias.

Esta es la ultima Perspectiva sobre las Condiciones del Tiempo
Tropical regular de la Temporada de Huracanes 2019. Las perspectivas
rutinarias sobre las condiciones del tiempo tropical comenzaran
nuevamente en junio 1, 2020. Fuera de la temporada, Perspectivas
Especiales sobre las Condiciones del Tiempo seran emitidas de ser
necesarias.

$$

Pronosticador Beven
Traduccion RVazquez

It set 2020 capital outlays at $800 million, 33 percent below previous guidance and the first sub-$1 billion budget since 2016.

Equinor ASA became the first major oil company to cut its dividend amid an historic market rout.

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Scientists and engineers from NTU Singapore and the University of Leeds in the U.K. have created the first electrically driven topological laser, which has the ability to route light particles around corners and to cope with defects in the manufacture of the device....

Fresh graduates from the Class of 2019 at Nanyang Technological University, Singapore (NTU) continue to be sought after by employers, with graduates from business and computing courses again being in highest demand....

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NTU has announced the second part of its COVID-19 Relief Package aimed at supporting final-year undergraduates as they enter a tight job market amid the pandemic....

On the same day OPEC-style oil quotas in Texas were pronounced dead on arrival, shale drillers disclosed more supply cuts.

Classroom management gets social with sites like Twitter, Facebook and Pinterest helping teachers and students communicate and share knowledge.