ELUM: User-friendly spatial modelling tool predicts net soil greenhouse gas balance of bioenergy land-use change in UK up to 2050

The ELUM Software Package spatially predicts the net soil greenhouse gas balance of land-use change to grow energy crops in the UK up to 2050. It is able to support a range of analyses of bioenergy, and was developed in consultation with anticipated users. Results can be obtained according to specific interests, viewed in the graphical interface and exported for a variety of purposes. The functionality of the software is demonstrated through different case studies, which show an array of applications

Application of an indoor air pollution metamodel to a spatially-distributed housing stock

Estimates of population air pollution exposure typically rely on the outdoor component only, and rarely account for populations spending the majority of their time indoors. Housing is an important modifier of air pollution exposure due to outdoor pollution infiltrating indoors, and the removal of indoor-sourced pollution through active or passive ventilation. Here, we describe the application of an indoor air pollution modelling tool to a spatially distributed housing stock model for England and Wales, developed from Energy Performance Certificate (EPC) data and containing information for approximately 11.5 million dwellings. First, we estimate indoor/outdoor (I/O) ratios and total indoor concentrations of outdoor air pollution for PM2.5 and NO2 for all EPC dwellings in London. The potential to estimate concentration from both indoor and outdoor sources is then demonstrated by modelling indoor background CO levels for England and Wales pre- and post-energy efficient adaptation, including heating, cooking, and smoking as internal sources. In London, we predict a median I/O ratio of 0.60 (99% CIs; 0.53–0.73) for outdoor PM2.5 and 0.41 (99%CIs; 0.34–0.59) for outdoor NO2; Pearson correlation analysis indicates a greater spatial modification of PM2.5 exposure by housing (ρ = 0.81) than NO2 (ρ = 0.88). For the demonstrative CO model, concentrations ranged from 0.4–9.9 ppm (99%CIs)(median = 3.0 ppm) in kitchens and 0.3–25.6 ppm (median = 6.4 ppm) in living rooms. Clusters of elevated indoor concentration are found in urban areas due to higher outdoor concentrations and smaller dwellings with reduced ventilation potential, with an estimated 17.6% increase in the number of living rooms and 63% increase in the number of kitchens exceeding recommended exposure levels following retrofit without additional ventilation. The model has the potential to rapidly calculate indoor pollution exposure across large housing stocks and estimate changes to exposure under different pollution or housing policy scenarios

Appraising infrastructure for new towns in Ireland

Copyright © 2013 ICE Publishing Ltd. Permission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees.Over a 20 year period 1996–2016, a new 223 ha town is being developed 10 miles west of Dublin's city centre on the south side of Lucan, County Dublin, in the Republic of Ireland (ROI). This €4 billion ‘Adamstown’ development is the first of four planning schemes in ROI to be approved as a strategic development zone – an integrated planning framework deemed suitable for creating sustainable neighbourhoods in sites of strategic economic or social importance to the state. The creation of sustainable neighbourhoods in ROI is facilitated through the implementation of a checklist of 60 indicators. This paper critically examines the attempts being made to consider sustainability within the development's overall infrastructure plan, specifically: transport, energy and water services, information technology and waste. Inadequacies in the existing development are linked to shortfalls in the sustainability checklist, by way of a comparison of infrastructure-related indicators from the ROI checklist with those derived for the UK and exemplar European projects (i.e. Bedzed, UK and Freiberg, Germany). The subsequent legacy for future residents of Adamstown is then considered in the context of ‘what if’ scenarios

The changing regulatory environment for speculative housebuilding and the construction of core competencies for brownfleld development

Speculative housebuilding in the United Kingdom faces an ever tighter regulatory environment owing to the increasing impact of the sustainable development agenda. For example, 60% of all new homes in England are now expected to be constructed on previously developed land or provided through the conversion of existing buildings. As speculative housebuilders are responsible for about 80% of all new dwellings built in the United Kingdom, the achievement of this important government target is critically dependent on the ability and willingness of the private sector to respond to public policy. By exploring the main components of the residential development process, the author investigates how far speculative housebuilding will need to change to ensure the successful implementation of the government's brownfield housing target. He suggests that those speculative housebuilders that are enthusiastically building up core competencies in brownfield housing are likely to emerge as the market leaders of the future whereas those companies that continue to rely on past practices and technologies will face an uncertain future as greenfield development opportunities begin to reduce

Status, sources and contamination levels of organochlorine pesticide residues in urban and agricultural areas: a preliminary review in central–southern Italian soils

Organochlorine pesticides (OCPs) are synthetic chemicals commonly used in agricultural activities to kill pests and are persistent organic pollutants (POPs). They can be detected in different environmental media, but soil is considered an important reservoir due to its retention capacity. Many different types of OCPs exist, which can have different origins and pathways in the environment. It is therefore important to study their distribution and behaviour in the environment, starting to build a picture of the potential human health risk in different contexts. This study aimed at investigating the regional distribution, possible sources and contamination levels of 24 OCP compounds in urban and rural soils from central and southern Italy. One hundred and forty-eight topsoil samples (0–20 cm top layer) from 78 urban and 70 rural areas in 11 administrative regions were collected and analysed by gas chromatography–electron capture detector (GC–ECD). Total OCP residues in soils ranged from nd (no detected) to 1043 ng/g with a mean of 29.91 ng/g and from nd to 1914 ng/g with a mean of 60.16 ng/g in urban and rural area, respectively. Endosulfan was the prevailing OCP in urban areas, followed by DDTs, Drins, Methoxychlor, HCHs, Chlordane-related compounds and HCB. In rural areas, the order of concentrations was Drins > DDTs > Methoxychlor > Endosulfans > HCHs > Chlordanes > HCB. Diagnostic ratios and robust multivariate analyses revealed that DDT in soils could be related to historical application, whilst (illegal) use of technical DDT or dicofol may still occur in some urban areas. HCH residues could be related to both historical use and recent application, whilst there was evidence that modest (yet significant) application of commercial technical HCH may still be happening in urban areas. Drins and Chlordane compounds appeared to be mostly related to historical application, whilst Endosulfan presented a complex mix of results, indicating mainly historical origin in rural areas as well as potential recent applications on urban areas. Contamination levels were quantified by Soil Quality Index (SoQI), identifying high levels in rural areas of Campania and Apulia, possibly due to the intensive nature of some agricultural practices in those regions (e.g., vineyards and olive plantations). The results from this study (which is in progress in the remaining regions of Italy) will provide an invaluable baseline for OCP distribution in Italy and a powerful argument for follow-up studies in contaminated areas. It is also hoped that similar studies will eventually constitute enough evidence to push towards an institutional response for more adequate regulation as well as a full ratification of the Stockholm Convention

Cliff instability and erosion management in England and Wales

Coastal risk management has received increasing attention from policy-makers and practitioners over the last 20 years. The introduction by the Department of Environment, Food and Rural Affairs (Defra), of a new approach to coastal risk management in England, led to the Environment Agency being given overall responsibility for the management of coastal risks in 2007. The establishment of a framework for coastal management, together with appropriate policy guidance,is particularly important on account of the increasing influence that predicted climate change may have on coastal economies, infrastructure, communities and conservation interests over the next century.Within this framework, the issue of coastal land instability is now being considered alongside the hazards of coastal erosion and flooding. In developing coastal management policies, and in deciding on whether coastal change should be adapted to rather than prevented, the availability of funding for coastal risk management projects and schemes is often an overriding consideration. This is encouraging new and innovative approaches for the avoidance of risks, through the implementation of adaptation strategies and the publication of improved advice and guidance. This paper describes recent policy guidance for coastal cliffs introduced in England and Wales, as well as the testing of new approaches in the field, and provides examples of updated tools to support engagement with stakeholders

An overview of arisings and large-scale treatment technologies for healthcare waste in the United Kingdom

This paper reviews the current generation and management of healthcare waste in the United Kingdom, with a focus on that produced from healthcare provision in the National Health Service. While the current capacities of large-scale off-site treatment systems are adequate, there are a number of logistical factors that must be considered in future. These include variations in arisings from each country and from various regions within each country, the age and location of treatment/disposal facilities, the quantities, types and sources of healthcare waste, and the impact of waste minimization and recycling strategies. Managing UK healthcare waste is a complex issue that requires the correct technologies and capacities to be available. With increasing quantities and costs there is urgent need for future planning, and healthcare waste issues need to be addressed from a UK-wide perspective. Holistic strategies need to incorporate both minimization and segregation, with treatment using a combination of incineration and alternatives treatment technologies. The need for more research and accurate data to provide an evidence base for future decision making is high lighte