Plant diversity improves soil stability, the results of a greenhouse experiment and a long-term field study show. This study, which covered a range of different soil types, is one of the first to investigate the effects of plant diversity on soil structure, which is important for provision of ecosystem services, such as carbon storage and the mitigation of excessive run-off. The findings could help tackle the problem of soil degradation, the researchers suggest.

The prominent role of EU countries in the international trade of reptiles for pets, including many rare and illegally traded species, is highlighted in a recent study. The researchers call for better enforcement and tighter legislation to control the trade, which is a major threat to global biodiversity. In particular the researchers appeal for legislation to be passed for species protected in their native range countries, which can currently be freely traded in the EU if they are not subject to international trade conventions such as CITES.

Agri-environment schemes (AES) have been implemented throughout Europe to mitigate against the negative effects of agricultural intensification. Although these schemes have shown positive effects on the abundance and richness of certain species and taxa, the impact of AES on reproduction of target species at the local and landscape scale is poorly understood. This large-scale study looked for the effect of selected AE measures on bumblebee reproduction. Results indicate that bumblebee reproduction is significantly higher on sown flower patches when compared to conventional management. Although the increase is most pronounced at the plot scale, higher reproduction was found in landscapes surrounding larger sown plots (at least one hectare) compared to smaller sown plots.

Habitat fragmentation is a threat to biodiversity, especially in agricultural land where there are also many endangered species. Corridors between habitats are one way to counteract its effects. A study suggests that grassy field margins — established throughout Europe to improve water quality — could act as corridors. The study, which measured the effects of field margins on butterflies, concludes that agricultural schemes should include this corridor function.

This study assessed the implementation of the ‘Flowering Meadows’ agri-environment scheme in France, a results-based scheme which encourages farmers to conserve meadows in the Bauges, Haut Jura and Vercors natural parks. While there was limited change in agricultural practices, the scheme did help to maintain meadow habitats. Farmers also welcomed the results-based payments approach, which gave them greater responsibility for and flexibility in managing their farms.

The cost-effectiveness of agri-environment schemes to conserve species and habitats under the Scottish Rural Development Programme (SRDP) has been assessed by a recent study. Cost-effectiveness was found to vary widely between schemes. Improvements in cost-effectiveness relative to specific conservation objectives might be achieved with increased geographical targeting, advice and monitoring of impacts.

Agri-environment schemes (AES) are a means by which farmers can ensure greener agriculture, but their success is based on many factors, including the effectiveness of the scheme and participation by farmers. In an effort to understand how different factors affect uptake of AES, this study assessed the attitudes and values of decision-making for a sample of UK farmers involved with bird conservation. The results indicate that effectiveness and participation rates could be improved by informing farmers about the state of bird populations in their region and highlighting the impacts of different management practices on bird conservation.

Researchers have pinpointed hotspots for birds in an agricultural region of Italy. These show that hotspots for wintering birds are different to those for breeding birds — yet it is often only breeding birds’ locations that are considered in the design of protected areas. The researchers say their research highlights the importance of crop-dominated land for birds in the Mediterranean region.

The growing human population and a shift to more resource-intensive habits and behaviours are increasing the demands on global ecosystems. Natural capital is a way to describe Earth’s natural assets, including soil, air, water, and living things, existing as complex ecosystems, which provide a range of services to humans. Depleting and degrading these reserves may irreversibly reduce the availability of benefits to future generations. This In-Depth Report presents an overview of ideas, debates and progress so far in natural capital accounting, in particular in accounting for ecosystems and their services.

Woody networks in agricultural landscapes are known to harbour high intrinsic biodiversity (i.e. diversity of plant species) and functional biodiversity (i.e. ecosystem services that arise from biodiversity). In order to clarify the drivers of intrinsic and functional biodiversity in woody networks, researchers analysed the plant species diversity, pollinator resource value (PRV), and potential edibility value (PEV) of a woody network in northern Belgium. The analysis confirmed that woody elements are a rich source of intrinsic and functional biodiversity and identified several important drivers. From a policy perspective, this research highlights the value of protecting existing woody elements and thoughtfully designing and locating new ones to maximise intrinsic and functional biodiversity in the countryside.

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%.

Many here in Massachusetts started social distancing about a month ago and we have no end in sight yet. If you live alone, maybe you are ready to match up with someone after you get through this hardship. Today's guest blogger, Toshi Takeuchi, has a perfect algorithm for you. I love that this was inspired by a problem that, at first glance, doesn't seem very technical or relevant. But it is!... read more >>

Surface water is considered to be of good ecological quality if the Maximum Permissible Concentrations (MPCs) of contaminants in the water are not exceeded. However, new research suggests that even when each individual contaminant does not exceed its MPC, water quality may be compromised by the combined effects of contaminants.

EU pesticide regulations have encouraged farmers in developing countries to adopt alternative pest management practices and employ safer means of handling pesticides, according to a recent study which investigated green bean farming in Kenya.

Governments and industry must act quickly to address the impacts of rapidly rising volumes of 'nanowaste', according to research. The study warns against continuing unabated release of nanomaterials into the environment and outlines a number of practical steps that should be taken in order to start dealing with the problem.

Electronic waste (e-waste) contains a large variety of heavy metals which threaten the environment and human health. New research has assessed environmental and technological preferences for materials in products of individuals within the US electronics industry. Strict international legislation, such as the EU's RoHS Directive, was found to reduce the use of lead for companies that market their products abroad.

A new study has developed risk assessment criteria for engineered nanomaterials (ENMs) to help inform innovation and policy decisions. It illustrates that product design can influence the unintended release of ENMs and that combining knowledge about the product life cycle with a systematic assessment of the potential hazards may enable responsible choices for future product developments to be made.

The official criteria used to assess how easily a chemical is taken up by biological organisms, known as the bioaccumulation potential, are considered reliable for most types of chemical. However, according to a new analysis, the criteria need updating to include uptake from contaminated sediment and food in order to reflect the realistic bioaccumulation risk for all chemicals.

New research has shed light on the source of highly toxic monomethylmercury (MMHg) in Arctic marine waters. A study of polar seawater suggests that relatively harmless inorganic mercury is being transformed into the toxic MMHg within the water itself.

Unprotected workers exposed to airborne nanoparticles face a potential health risk from carbon black and titanium dioxide nanoparticles, according to a recent study. Reducing airborne nanoparticle contamination to acceptable levels can be achieved by using a workplace filter ventilation system and personal respirators.

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.

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.

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.

A recent study has described a simple method to screen the toxicity of materials used in consumer products. Using utility meter products as examples, the study found, for example, that stainless steel and polyvinyl chloride (PVC) had high toxicity potentials and suggests less toxic, but equally effective and priced, alternatives that could be used instead.

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 public places a high value on the use of scientific information, especially regarding climate change, in the management of groundwater resources, a case study in Finland indicates. This suggests that incorporating scientific research into management policies is likely to have the support of stakeholders in the region.

A technique that can detect the array of pesticides bees might be exposed to has been developed in Poland. The simplicity, speed and small sample sizes required for screening makes this technique an improvement over other methods, say the researchers behind its development.

Farmers could help to maintain populations of bees and other pollinators by sowing inexpensive seed mixes on their land, a new study suggests. Researchers surveyed pollinators visiting study plots in Berkshire, UK, and explored how sowing different seed mixes and using different management techniques affected the flowers produced and the pollinators visiting them.

The Deepwater Horizon oil spill is likely to have damaged large numbers of tuna and amberjack fish embryos, new research suggests. Fish embryos exposed to oil samples taken during the spill developed abnormalities in their hearts and, consequently, their spines, fins and eyes. This is likely to have caused population declines in these commercially important species, the researchers conclude.

Oil spills can decimate seabird populations. Some birds can be saved, if the oil is washed from their feathers in time; however, this long process is stressful for the birds and requires numerous volunteers. Researchers have now developed a ‘bird-washing machine’ which reduces the washing time from two hours to four minutes. When trialled on oiled birds rescued from the Caspian Sea this resulted in a substantial increase in survival: 88.5% survival after seven days compared to 50% survival with current washing techniques.

Rodents poisoned by pest control substances may pose a threat to protected birds if the carcasses are not removed quickly enough. A new study found that dead water voles on farmland were scavenged rapidly by red kites and buzzards, suggesting that regular removal is needed to reduce poisoning risks.

Neonicotinoid and fipronil insecticides have a range of impacts on birds, mammals and fish, a new review of scientific literature has found. A house sparrow would need to eat just one and a half beet seeds treated with a common neonicotinoid to receive a lethal dose, for instance. The insecticides may also have equally important effects on vertebrate wildlife, such as reducing insect prey and hence food supply.

This study assessed the effects of herbicides on non-target plants in Denmark and Canada. The findings showed that some plants are more sensitive to herbicides in the reproductive stages of their life cycle and can experience delays in flowering and reduced seed production. The authors say future ecological assessments should consider reproductive outcomes.

Nutrient leaching, the movement of plant nutrients from soil to water, can have negative effects on aquatic ecosystems due to eutrophication, which reduces the oxygen available in water, causing species and habitat loss. Ecological Recycling Agriculture (ERA), which is based on ecological principles and integrates crop production and animal husbandry, may limit this effect. This study investigated the impact of ERA on agricultural fields in Finland, showing that the practice can reduce nitrogen leaching and may help to achieve agricultural nitrogen-reduction targets.

New research has combined two different techniques for identifying hazards and assessing risks into a single dynamic risk assessment process. The new approach fills a gap in many current risk assessment techniques as it can be applied throughout the lifetime of a process, not just during its design phase, taking into account new information to update risk assessments and calculations systematically.

Chemicals regulation in Europe could be improved through integrated risk assessment, says an EU project. The project team presents a range of perspectives on how the integration of hazard, exposure and socio-economic assessments can be promoted and implemented.

Perfluorooctane sulfonic acid (PFOS) and its derivatives — linked to health problems in animals — have been found in levels exceeding EU thresholds in some outdoor textiles, leather goods and ski waxes, according to a recent analysis of everyday consumer items. Better quality control in the processing and manufacture of goods coated with the substances is among the recommendations made by researchers to reduce human exposure to these toxic chemicals.

Widespread use of antibiotics has led to pollution of waterways, potentially creating resistance among freshwater bacterial communities. A new study looked for antibiotic resistance genes in a river basin in Spain, revealing that wastewater discharges can promote the spread of antibiotic resistance in streams and small rivers.

Poisoned bait is a major threat to endangered bird species in Europe. The LIFE+ VENENO project was set up to tackle this problem in Spain, developing an action plan for eradication of the illegal use of poison and protocols for law enforcement. As well as improving the prosecution of illegal poisoning in Spain, LIFE+ VENENO provides a useful model for other European countries.

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.

Personal care products (PCPs) are a diverse group of products, including toothpaste, shampoo, make-up and soaps. The number and use of these products has increased over recent decades, generating concern about their impact on the environment. This literature review analysed over 5 000 reports of environmental detection of 95 different chemicals from PCPs. The analysis reveals toxic levels of PCP chemicals in raw and treated wastewater, and in surface water. The researchers recommend treatment methods focusing on antimicrobials, UV filters and fragrance molecules.

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.

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.

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.

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.

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.

Over the past two decades, concern has grown globally about the occurrence of anthropogenic organic contaminants in the environment, such as substances used in pharmaceuticals, food production and manufacturing. Many of these compounds are not sufficiently monitored or regulated in groundwater — a critical water resource in Europe. A recent paper proposes an approach to developing the first voluntary Groundwater Watch List (GWWL): an initiative with which to identify, monitor, and characterise substances that have the greatest potential to pollute this water resource.

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 >>

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 >>