A range of legislation, including the Marine Strategy Framework Directive (MSFD), is designed to ensure the ‘Good Environmental Status’ (GES) of EU seas by 2020. Researchers have assessed the MSFD in relation to existing maritime policies, concluding that coordination between directives is important to achieve GES.

Combinations of antibiotics used in veterinary medicine could harm the growth of algal communities when they pass into water bodies from treated livestock, according to recent European research. Algae play vital roles in ecosystems by cycling nutrients and producing energy from photosynthesis; veterinary use of antibiotics should, therefore, be monitored in the environment, including for any biological impacts on algal species, the study recommends.

A common anti-parasitic drug used to control gastrointestinal worms in livestock has been shown to inhibit seed germination of three common grassland species. This recent study is the first to show that anthelmintics may negatively affect plant regeneration. The researchers say that treatments should be carefully timed in order to avoid the strongest impact of the drugs on germination and the consequential negative affect on grassland regeneration.

Municipal wastewater is a major source of pharmaceuticals in the aquatic environment. Results from a recent study suggest that collecting and treating urine separately from other forms of sewage could be a cost-effective way to reduce the harmful effects of pharmaceuticals on the environment, while also providing a source of nutrients for fertilising agricultural crops.

The pathways for removal of dissolved phosphorus within biofiltration systems have been examined in a new study. Over 95% of phosphorus was removed over the study period, with the majority of phosphorus stored within plants. The researchers say the findings demonstrate the value of using suitable plant species within biofiltration systems to treat polluted water.

Biological control agents are an environmentally-friendly way of controlling pests and diseases on crops and are advocated in the EU’s Sustainable Use of Pesticides Directive1. The authors of a new review of the current state of biological control refer to a recent UN report2 which states that it is possible to produce enough food to feed a world population of nine billion with substantially less chemical pesticides — and even without these pesticides if sufficient effort is made to develop biocontrol-based Integrated Pest Management (IPM) methods. The study suggests that policy measures can speed up the development and use of environmentally-friendly crop protection.

UV treatment does not always turn hazardous water pollutants into harmless substances. Recent lab tests suggest that the toxicity of the antibiotic linezolid to microorganisms appeared to increase post-treatment. This research did find, however, that UV treatment successfully reduced the antimicrobial activity of four other antibiotics tested, plus four artificial sweeteners.

Evaluating the level of danger to human health from exposure to multiple chemicals in contaminated sites is a complex task. To address this difficulty, researchers have developed a new screening tool that can be incorporated into public health risk assessment, which may include polluted former industrial plants, waste dumps, or even land where pesticides have been used. This ‘hazard index’ approach indicates when risk to health is high, which organs are most affected, and where further evaluation should be conducted in the context of environmental or occupational exposure at such sites.

A new study has analysed the environmental impact of 15 products containing nanosilver, highlighting the contribution of this novel material to the items’ overall environmental burden. The findings show that nanosilver impacts, such as fossil fuel depletion and human-health impacts, are relative to content, and can be marginal when considered in the context of the product’s other materials. Based on their results, the researchers recommend considering the overall impacts and benefits of nano-enabled products in evaluation and environmental guidance on their development.

An investigation into the attitudes of Canadian soil-remediation experts has shown that they tend to prefer conventional remediation methods over phytoremediation — which relies on plants to clean soils — despite evidence that the latter can have advantages. The researchers behind the study highlight that this ‘status-quo bias’ poses a barrier to the uptake of novel technologies such as phytoremediation, and that scientists may need to find different ways of disseminating evidence to increase the use of new techniques among practitioners.

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.

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.

According to most EU legislation, regulatory assessment of chemicals should make use of all available and relevant studies. However, in practice, assessments tend to be predominantly based on research sponsored and provided by industry as part of their legal obligations to show safety of their products, rather than on independent peer-reviewed findings. To bridge this science–policy gap, a team of Swedish researchers, in combination with regulators at three Swedish governmental agencies, have published a list of recommendations aimed at increasing the regulatory usability and impact of academic research. This advice is aimed at researchers, for whom it clarifies relevant regulatory data requirements and quality criteria. However, it is also relevant to policymakers, in that it highlights the advantages and availability of relevant, reliable peer-reviewed research for use in the regulatory assessment of chemicals. The study’s recommendations contribute to the formulation of more science-based, sustainable policies.

If the EU is to combat resource scarcity, it is necessary to develop and refine strategies for substituting raw materials with sustainable alternatives, such as recovered by-products from waste. A recent study presents a new approach for evaluating the sustainability of raw materials’ substitutions, based on the quantification of the embodied energy (energy required to produce the material from ores and feedstock) and carbon dioxide footprint (greenhouse gasses produced and released into the atmosphere during the production of the material) of both the raw material and its proposed substitute. The evaluation method has been applied to a real case, where it indicates that substituting a raw material (calcite) with stabilised fly ash for use as a filler in polypropylene composites in plastic manufacturing may be sustainable. The study also highlights the need for additional policy tools and legislation to encourage Europe’s transition towards a circular economy.

Personal Care Products (PCPs) are of increasing global concern, as thousands of tonnes enter the environment every year. Similar to persistent organic pollutants (POPs), some substances used in PCPs are toxic, persist in the environment and accumulate in the bodies of organisms that take them in. This study focused on the presence of ultraviolet filters (UV-Fs) (used in PCPs such as sunscreens and cosmetics) in the unhatched eggs of wild birds.

High-quality and innovative batteries are imperative for the EU in the context of its move towards a low-carbon, climate-friendly and more circular economy. However, manufacturing and using batteries, as well as the way they are treated at the end of their life, also has environmental impacts. This Future Brief from Science for Environment Policy provides an overview of technical aspects of battery design and production which enable the environmental footprint of batteries to be lowered. It also highlights how battery technologies are evolving to deliver better performance.

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.

Parasitoid wasps (Trichogramma pretiosum) are increasingly being used as a biological control agent in agriculture. Since insecticides are often applied to the same crops, it is necessary to assess the effects of different insecticides on this insect. However, the majority of studies have focused on evaluating the lethal, but not sublethal, effects of insecticides. A new study has evaluated the sublethal effects on T. pretiosum of nine insecticides commonly used in soybean production in Brazil. Overall, just three of the nine insecticides tested did not appear to have any harmful sublethal effects on T. pretiosum. This study highlights the importance of considering sublethal, as well as lethal, effects when assessing insecticide selectivity.

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).

The presence and accumulation of micropollutants1 (anthropogenic trace contaminants) in aquatic environments is an area of policy concern for the EU. In order to better understand how these chemicals enter and are transported within water systems, this study investigated the occurrence and concentration of a broad spectrum of micropollutants across Austria’s water system. Municipal waste-water effluents were found to be the emission pathway with the highest concentrations of some micropollutants. The study also demonstrated that levels of other micropollutants are higher in rivers, atmospheric deposition and groundwater than in waste-water effluents and that these sometimes exceeded environmental quality standards for surface waters.

I like to think of geometric transformations of images (stretching, shrinking, rotating, etc.) by starting with the geometric transformations of points. You could think of a geometric point transformation as just moving a point from one location to another, like this:... read more >>

Baylis, Françoise, 1961- author

Thompson, Ken, 1954- author

After my last post on FMU import and export, someone asked me if exporting a Simulink model to an FMU was a good way to hide the model and protect intellectual property.... read more >>

Today I am happy to welcome guest blogger Quique Hernandez Hurtado Esquilas.... read more >>

Recent research has investigated the effectiveness of air quality management at the regional level in Italy and found that some of the most commonly adopted measures do not always produce the highest emissions reductions.

A recent analysis of indoor industrial air pollutants could be useful for implementing REACH (Registration, Evaluation and Authorisation of Chemicals). Implementation of REACH should be based on sound analytical methods and targeting of priority chemicals, according to the researchers.

New European research finds that the levels of several harmful air pollutants are greater indoors than outdoors, and even greater when measured on the person themselves. The levels of benzene are especially concerning and often exceed EU limits.

Reductions in air pollution in European cities significantly reduce the number of premature deaths, according to researchers. However, these results need to be communicated effectively to policy makers in order to have an impact.

One of the benefits of cycling is improved physical health. However, recent research suggests that cyclists inhale more air pollutants than motorists in traffic, mainly due to faster, deeper breathing. This suggests that town planners should carefully consider cycle routes.

New research has estimated the global footprint of emissions from commercial aircraft. In 2006 nearly 190 million tonnes of fuel were burnt and 162 million tonnes of carbon from CO2 were emitted. The vast majority of the fuel was burned in the Northern hemisphere and half the emissions were over the US, Europe and East Asia.

The policy implications of agricultural losses caused by high concentrations of ground level ozone have been highlighted by a recent study. The study modelled ozone impacts on 14 of the most important crops grown in the Greater Thessaloniki area of Greece. The results provide information about differences in scale of losses and economic impacts across the region which may be useful in designing agricultural subsidy schemes.

Although there have been significant advances in the understanding and monitoring of atmospheric processes in the last decade, a recent study suggests that uncertainties in their assessment continue to grow and more complex studies are required to understand the precise relationship between atmospheric chemicals, such as air pollutants, and climate change.

The results of a new study appear to support the view that the Montreal Protocol has been effective at protecting the ozone layer. Researchers modelled the impacts of the Protocol's phasing out of ozone depleting substances and found that they matched actual changes of global ozone over the last 50 years.

A recent study assesses new methods for comparing and predicting air quality data in Helsinki, Finland and Thessaloniki, Greece, that significantly improve the capability to analyse and predict air quality in these cities. There are good indications that the methods could be applied to other European cities.

A new study has shown that life expectancy and monetary benefits increase significantly when levels of fine particles are reduced further in European cities. It also reveals that living near busy roads could be responsible for a substantial amount of poor health attributable to air pollution.

Traffic fumes can cause serious health problems, but their distribution and spread in complex urban environments can be hard to predict. Now, researchers have created the ‘STEMS-Air dispersion model’, which can be used by planners and health authorities to give accurate daily and annual estimates of exposure to traffic fumes and other forms of air pollution in cities.

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.

Ultrafine particles emitted from a waste incinerator plant in Italy have been characterised in a recent study. The results suggest that a fabric filter was efficient at cleaning particulate matter from the exhaust gases. Data produced by the study could go on to be used by scientists studying the potential health impacts of ultrafine particles.

Implementation of technology to clean the flue gases of coal-fired power plants has significantly reduced sulphur and fine particle emissions that cause environmental damage. However, recent research suggests that plants applying this technology would emit more ultrafine particles (1-10 nanometer (nm) diameter) that affect the formation of clouds, with the unintended consequence of changing the amount and intensity of rainfall downwind of fossil fuel power installations.

The Earth is now absorbing more energy from the Sun than it is radiating into space. A recent analysis indicates that most models of this energy imbalance underestimate the impacts of human-made aerosols and overestimate time lags in response to the climate. As such, the energy imbalance and future impacts on climate may be greater than predicted.

Planting trees in urban areas has been recognised as a cost-effective means of reducing air pollution for several major cities worldwide. In a new study, the impact of tree species diversity on levels of ozone pollution in Rome was assessed. The results suggest that different species of tree complement each other in providing this important ecosystem service.

Measures to control methane and black carbon (soot) emissions could improve air quality and public health, in addition to slowing the rate of climate change, according to recent research. By 2030, the reduced pollution could prevent between 700,000 and 4.7 million premature deaths each year, with 80% of the benefits occurring in Asia.

A mixture of fine particles in air leads to harmful effects on human health. Currently, particulate matter (PM) is defined in policy by particle size, but according to a new study, focusing on air pollutants and their toxic effects on cells may provide an effective way to legislate for PM.

Researchers have presented an extensive analysis of the role of nanomaterials in environmental remediation and monitoring. Nanomaterials can be used to clean up toxins and bacteria from natural waters, wastewaters and the air.

A study on the transport of radioactive isotopes from Fukushima in the two months after the nuclear incident suggests that they were at official levels of contamination for 34,000 km2 of Japan, and that 2.8% of iodine radionuclides from the event were calculated to have reached the EU.

For the first time, researchers have quantified the link between heat waves, the removal of ozone from the atmosphere by vegetation, ground-level ozone concentrations and its impact on human health and ecosystems. They found that high ozone levels, enhanced by effectively ‘turning-off’ the loss of ozone to the vegetated surface, could have caused around 460 extra deaths during a UK heat wave in 2006. In contrast, the heat wave protected ecosystems from ozone damage as plants absorbed less ozone from the atmosphere.ozone damage as plants absorbed less ozone from the atmosphere.

Danish researchers have recently revealed that crop harvesting can release high levels of Alternaria fungal spores, affecting air quality locally and, occasionally, over long distances. The fungus is known to trigger human allergic reactions, and the study calls for improved monitoring and forecasting of airborne fungal spores.

A recent study suggests that mercury deposited from the atmosphere is the main source of mercury pollution in the open oceans. Curbing mercury emissions will slowly lead to a decrease in contaminated fish, as eaten by humans, within a few years to decades after the cuts have been made, the researchers suggest.

The damaging health impacts of some key air pollutants can occur at lower atmospheric concentrations than indicated by the most recent World Health Organization (WHO) Air Quality guidelines, set in 2005 and currently used in Europe. This is according to a new WHO report, which assesses scientific evidence to help inform European air pollution policies.