As global temperatures continue to warm, sea-levels are expected to rise, increasing the risk of saltwater inundating wetlands in low-lying coastal areas. A study in Wales, UK, describes how rising sea levels will result in a shift from a wetland rich in plant diversity to one dominated by saltwater and mud in 200 years’ time.

The importance of seagrass meadows in supporting fisheries has been highlighted by a new study in San Simón Bay, a Natura 2000 site in Spain. The research also demonstrates the benefits of stakeholder involvement in developing management plans to balance conservation with the use of natural resources.

Energy demand is on the rise globally, and this is predicted to continue in coming decades. Increasing energy production to meet this demand requires materials — both metals and non-metal minerals — from a number of countries. As some materials are in short supply, it is important to consider material dependency and availability when developing national energy plans for the future. This study is the first to address material dependency effects on a nation’s energy development plans, with the UK and Turkey as case studies.

Considering the impact on soil carbon, biodiversity and ecotoxicity is important when assessing the environmental footprint of dairy products, suggests a new study, which explored the impacts of organic and conventional milk production in three types of system established in Western Europe. The study found that organic milk production had a significantly lower impact on ecotoxicity and biodiversity than conventional milk production, and suggests that including soil carbon changes in the assessment would result in greater reductions in the carbon footprint of organic, rather than conventional, milk — in some cases by up to 18%.

Researchers have developed the first biology-based model to predict the sub-lethal effects of chemical mixtures on organisms. Sub-lethal effects do not cause death but can damage processes such as growth and reproduction. The model provided accurate predictions of the sub-lethal impacts of a chemical mixture on water fleas.

Record high prices for gold have driven a recent six-fold increase in deforestation in parts of the Peruvian Amazon with damage that can be measured from space, according to a new study. Rates of forest clearance and imports of mercury, used to process gold ore by local, small-scale miners, were both found to increase with the rising international price of gold.

A new approach to assessing the risk posed by 500 organic chemicals potentially found in the surface waters of river basins across Europe has been developed. It allows pollutants of concern, including emerging substances, to be identified and prioritised by Member States for monitoring and action as required by the Water Framework Directive.

A recent study has considered the levels at which active pharmaceutical ingredient (API) residues are safe when released into water bodies from drug manufacturing plants. It proposes that environmental reference concentrations and maximum tolerable concentrations are adopted for each API.

There are differences in the assessment and restriction of chemicals exempt from the EU’s regulatory instrument REACH. A new study has analysed the differences between several regulatory frameworks that govern these chemicals and recommended greater harmonisation in assessment criteria and regulatory follow-up.

Comparative toxic assessments across regions and countries are needed to minimise human exposure to harmful chemicals associated with consumer products. A new study has developed a US version of the EU Toxic Potential Indicator (TPI) and compared the two models for over 500 chemicals. Differences in results exist, indicating a need for more harmonisation between regulatory thresholds and guidelines.

A US study has concluded that issuing public health advice on fish consumption is the best short-term solution to reducing people’s exposure to mercury contamination. Reducing mercury emissions at source is considered a longer-term solution. Health advice should be targeted towards populations at greatest risk and consider the pollution levels of the water from which the fish came.

Debate exists as to whether environmental concentrations of the hazardous substance hexachlorobenzene (HCB) should be measured in water or in wildlife when assessing compliance with environmental quality standards (EQS). New research has proposed a method to calculate concentrations in water that best represent critical levels in wildlife, and a tiered approach to compliance assessment that minimises sampling of wildlife.

The world's first full-scale artificial wetland designed to treat both sewage effluent and mine wastewater has been found to continuously remove high levels of pollutants, a recent study concludes. Treating both types of wastewater at the same time proved to be highly beneficial because they contain pollutants which are more easily removed when mixed together.

Halogenated nitrogenous disinfection by-products (N-DBPs) in water increase bacterial resistance to antibiotics, new research shows. The study found that a strain of bacteria which can cause disease in humans, Pseudomonas aeruginosa, increased its resistance to a range of different antibiotics by an average of 5.5 times after the bacteria were exposed to chemicals which form as by-products of common water treatment procedures. The results highlight the risks to public health which these currently unregulated by-products may cause.

Wastewater sludge is widely used to remove toxic polycyclic aromatic hydrocarbons (PAHs) from soil, and yet the mechanisms underlying this process remain unclear. A new study reveals the extent of PAH removal following different treatments, and could provide a useful resource for those looking to diminish the effects that these pollutants have both on people and on the environment.

Oestrogens are ‘female’ hormones that can enter the aquatic environment after excretion by humans and animals, causing ‘feminisation’ of male fish. This study carried out a risk assessment for oestrogen-like endocrine disruption in the UK in the 2050s, based on likely changes to the human population, river flows and temperature. The authors found that risk is likely to increase under future conditions and recommend further research to assess whether improving sewage treatment could reduce oestrogen pollution.

Researchers have experimented with microwave heating as a way of cleaning soils polluted with fuels, such as diesel and petrol. Soil type and moisture levels, as well as the strength of microwaves used, had a strong bearing on the overall effectiveness of the cleaning. The research shows that, at certain depths and in certain types of soil, microwaves can be a cost-effective way of cleaning polluted soils.

New research has shown that flooding of soils contaminated with arsenic, which may occur as sea levels rise due to climate change, could lead to the mobilisation of this toxic element in the environment. The study shows that arsenic is more stable in soil flooded with saltwater, compared to river water, as salt stabilises mineral oxides and could inhibit microbial activity. However, microbes that transform arsenic into water-soluble forms may adapt to saline conditions, and the risk of arsenic entering waters due to rising sea levels should receive further attention.

A recent study has assessed the environmental impact of a group of technology-critical elements (TCEs) — niobium (Nb), tantalum (Ta), gallium (Ga), indium (In), germanium (Ge) and tellurium (Te) — that, to date, have been relatively under-researched. The researchers reviewed published concentrations of these elements in environmental archives and evaluated trends over time in surface waters. Overall, they found no evidence that the rising use of these elements in modern technologies is causing environmental concentrations to increase on a global level. These findings are relevant to future policy discussions regarding the source, usage and presence of less-studied TCEs, particularly in relation to critical raw metals.

The presence of organic pollutants in waste water and drinking water can have alarming environmental and public health implications. Current water treatment methods have limitations: they can only remove certain contaminants, to certain extents, and also produce harmful by-products. New and improved methods are required. A recent review paper presents radiation processing as a promising approach, providing strong evidence of its efficacy, efficiency, safety, and feasibility. Focusing particularly on the use of electron-beam processing for the removal of organic pollutants from waste water and drinking water, the researchers present a compelling picture, relevant to stakeholders involved in water treatment and management.

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).

In my first year of writing this blog (2006!), I showed how to overlay a color onto an image based on a mask. This was the example I gave back then:... read more >>

The 3rd edition of Digital Image Processing Using MATLAB (DIPUM3E) has just been published, at long last. The new edition includes extensive new coverage of image transforms, spectral color models, geometric transformations, clustering, superpixels, graph cuts, active contours, maximally-stable extremal regions, SURF and similar feature detection, and deep learning networks.... read more >>

In a previous post, I introduced a model simulating the exponential spread of a phenomenon like COVID-19. With more and more talks in the news about deconfinement plans, I thought it would be interesting to run multiple simulations with different deconfinement scenarios and observe the potential outcomes.... read more >>

A recent study has analysed the physical and chemical characteristics of particulate matter (PM) from 60 sites across Europe. The results suggest there is no single ratio between PM_2.5 and PM₁₀ mass concentrations for all the sites, and that PM mass cannot be directly related to the concentration of particle numbers.

A new study has analysed trends in ozone levels in the European troposphere from 1996 to 2005. It indicated that average levels have been increasing despite reductions in pollutants that influence ozone formation. However, it also identified year-by-year variations, caused by climate and weather events, and suggested they could be masking the impact of emission reductions on long-term ozone trends.

Our lifestyles determine how often we are exposed to cancer-causing chemicals, such as those in traffic emissions and cigarette smoke. A Swedish study reveals how exposure to these chemicals varies from person to person. Among its findings, the amount of time a person spends in traffic or refuelling their car significantly affects how much benzene and butadiene they could inhale.

Changes in the home that increase energy efficiency, such as improved insulation and ventilation control, have the potential to reduce indoor air pollution. This study assessed the health impact of interventions in the UK arising from changes to indoor concentrations of fine particulate matter and found that such changes could improve health and increase life expectancy for men and women by three and two months, respectively.

Congestion charges are an effective means of reducing road traffic, but are often strongly opposed by the public. This study combined quantitative and qualitative methods to explore attitudes towards congestion charging in Spain, finding that opposition is reduced when revenues are spent on environmental improvements.

Nitrogen deposited from the atmosphere is in decline in Western Europe due to targeted policies on emissions, with emissions 25% lower than their peak in 1990. Policy measures to lower nitrogen air pollution — which damages plant diversity, buildings and human health — have made an impact and are forecast to continue to lower nitrogen levels in the future, offering an opportunity to evaluate their impact. This study uses the UK as a case study to answer the policy question: what is the economic impact on biodiversity of forecast reductions in nitrogen pollution?

Polycyclic aromatic hydrocarbons (PAHs) enter the environment in large quantities via the combustion of fossil fuels and organic matter. They are a cause for concern given their known toxicity, potential to cause cancer and ability to move large distances in the atmosphere — meaning that they are found in remote or protected areas, such as the Arctic, even if not emitted there. This study explores how PAH levels in the Arctic atmosphere have changed over the past 20 years at three sites in Canada, Norway and Finland. The results show that, despite a global decrease in PAH emissions in the same timeframe, the air concentrations in the Arctic are not significantly declining — possibly partly as a result of local warming causing more volatile PAHs to move from the surface to the air.

Some types of bacteria show the potential to act as self-healing agents in concrete, according to a recent study. This could make the construction material more durable and therefore more sustainable.

Bioremediation is a technique that harnesses the power of nature to treat contaminated soils and groundwater. This study explored a technology that is effective at capturing groundwater pollutants and shows promise in extreme environments — the Permeable Reactive Barrier (PRB).

Engineering at the nanoscale brings the promise of radical technological development — clean energy, highly effective medicines and space travel. But technology at this scale also brings safety challenges. Nano-sized particles are not inherently more toxic than larger particles, but the effects are complex and vary based on particle properties as well as chemical toxicity. This Report brings together the latest science on environmental safety considerations specific to manufactured nanoscale materials, and some possible implications for policy and research.

There’s a growing phenomenon in CIOs’ lives, and it’s called Shadow IT: other departments like finance and marketing bypassing the IT department and buying their own technology.

SASOL has adopted telepresence for collaboration between far-flung executives in Europe, North America and Africa. Running over the BT IP Connect global network it also enables federation with customers and suppliers. The solution’s earned Alec’s team a special recognition award from the CEO for bringing the company’s One SASOL philosophy and vision vibrantly to life

Every year some of the world’s best young musicians would jet into London to audition for a bursary with the Southbank Sinfonia. Simon Over wanted to cut down on those thousands of air miles and hours in transit. He also didn’t want to miss out on youngsters who couldn’t afford the fare.

New tool helps Housing Connector place individuals and families experiencing homelessness into privately owned homes and apartments quickly and efficiently

New York Times

THE small pool of houses for sale in Greater Hobart is getting smaller.

Zillow Group Mortgage analysis shows that the mortgage payment on the typical home in most of the country's housing market would increase by $25 or less should interest rates rise to 4.25%

Despite increased concerns over rising rates, most Americans will move forward with a home purchase should rising rates increase their monthly payment by $100

Government assistance appears to be crucial to keeping many from falling into housing insecurity

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FREDERICKSBURG , Va. – An additional evening of work is required this week for an ongoing pin replacement on the Robert O. Norris Bridge, and...

FREDERICKSBURG , Va. – An additional evening of work is required this week for an ongoing pin replacement on the Robert O. Norris Bridge, and...

NOV. 12, 2018 UPDATE: All lanes of Route 3 over the Rappahannock River between Lancaster and Middlesex counties will remain open this evening, Nov....

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