solar air sampling Articles

  • Status of black carbon monitoring in ambient air in Europe

    Black carbon (BC) is increasingly discussed in science and environmental policy areas as an example of an air pollutant that affects both human health and contributes to climate change (e.g. WHO, 2012; UNEP/WMO, 2011; Bond et al., 2013; IPCC, 2013). In order to be able to make comparable measurements of BC in ambient air and to relate BC monitoring to health impacts and climate change it is ...

  • Study of the effects of air pollution on textiles exposed to Cairo's ambient atmosphere

    Cotton fabric (100% cotton) and synthetic fabric (65% polyester and 35% cotton) were exposed at five selected sites in urban and industrial districts in Cairo city for a period of 15 months. The changes in the physical properties of the exposed textiles were investigated. The results indicated that the tensile strength of all the exposed samples was decreased, for warp and weft directions by ...


    By Inderscience Publishers

  • Vapor intrusion mitigated through solar-powered exhaust systems

    EPA Region 6 undertook a Superfund removal action earlier this year at the Delfasco Forge site in Grand Prairie, TX, to address trichloroethene (TCE) vapor migrating from a groundwater plume. Region 6 and the State had determined after extensive site investigations that technologies such as soil vapor extraction or natural attenuation would require several years to remove or reduce the plume ...

  • Energy and exergy analyses of drying of apricots in a rotary solar dryer

    This paper presents the energy and exergy analyses of the drying process of apricots in a rotary column cylindrical drying (RCCD) cabinet. For these purposes, all stages of the drying process, considered as a steady-flow thermodynamic system, were analysed. Using the first law of thermodynamics, energy analysis was carried out to estimate the amounts of energy gained from solar air collectors and ...


    By Inderscience Publishers

  • Integrated solar and wind energy powers oil recovery system

    Recovery of free-product petroleum at the former St. Croix Alumina (SCA) site in Kingshill on St. Croix, VI, is addressing ground-water contamination caused by past releases of fuel and refined petroleum at SCA. The oil recovery system employs wind-driven turbine compressors (WTCs), wind-driven electric generators (WEGs), and photovoltaic (PV) panels to power pneumatic and electric submersible ...

  • Diurnal variations of total mercury (THg), reactive mercury (RHg), and dissolved gaseous mercury and water/air mercury flux in warm and cold season from fresh waters of Southwestern China

    Diurnal variations of water total mercury (THg), reactive mercury (RHg), and dissolved gaseous mercury (DGM) concentrations and mercury flux were monitored at two sites in warm and cold season in an alkaline reservoir in Southwestern China. Concentrations of THg and RHg as well as Hg fluxes usually exhibited a consistent diurnal trend with elevated values observed during day. The increasing ...


    By John Wiley & Sons, Ltd.

  • Growth mechanism and optical properties of zinc oxide thin film

    Zinc oxide (ZnO) thin films were successfully deposited on glass substrate by radio frequency (RF) sputtering technique. One set of the samples was annealed in open air at temperatures of 423 K, 573 K and 723 K for one hour while another set of samples was annealed under nitrogen atmosphere for the same duration of time and temperature as the other set. A growth mechanism for thin film growth by ...


    By Inderscience Publishers

  • Studies on hydrothermally synthesised zinc oxide nanorod arrays for their enhanced visible light photocatalysis

    Photocatalytic activities of hydrothermally synthesised ZnO nanorod films in synergism with visible light have been studied. Influence of each of the synthesis parameters, like concentration of precursor solution, relative concentration of hexamine and zinc nitrate, growth time, growth temperature, pre–growth seeding, post–growth annealing, concentration and pH of the contaminant ...


    By Inderscience Publishers

  • Field Test Experiments to Validate The CEN Standard Measurement Method For PM2,5

    For air quality across the European Union to be assessed on a consistent basis, Member States need to employ standard measurement techniques and procedures, following Community Directive 96/62/EC on ambient air quality assessment and management [1], and Directive 1999/30/EC (1st EC Air Quality Daughter Directive) [2], which sets the parameters specific to the assessment of particulate matter (and ...


  • Field test experiments to validate the CEN standard measurement method for PM 2,5

    For air quality across the European Union to be assessed on a consistent basis, Member States need to employ standard measurement techniques and procedures, following Community Directive 96/62/EC on ambient air quality assessment and management [1], and Directive 1999/30/EC (1st EC Air Quality Daughter Directive) [2], which sets the parameters specific to the assessment of particulate matter (and ...


  • A Cleaner Energy Future

    As renewable energy plays an increasingly important role in the world’s energy portfolio, the standards of ASTM International Committee E44 are helping to pave the way for innovation in clean energy sources. A growing population and improving living standards around the world are causing significant increases in energy demand and competition for fossil fuels. These escalating energy ...


    By ASTM International

  • Case Study Port of Hamburg/Germany

    LOG_aLevel Storm Tide Network at the Port of Hamburg, Germany Since 2003 a Storm Tide Network from General Acoustics GmbH (GA) has been satisfactory operating at the Port of Hamburg. In a first test phase of two years a LOG_aLevel station was successfully tested by the Hamburg Port Authority (HPA) against its conventional gauges. Due to the good results in terms of accuracy and ...


    By General Acoustics e.K.

  • Biopiles

    Biopile treatment is a full-scale technology in which excavated soils are mixed with soil amendments and placed on a treatment area that includes leachate collection systems and some form of aeration. It is used to reduce concentrations of petroleum constituents in excavated soils through the use of biodegradation. Moisture, heat, nutrients, oxygen, and pH can be controlled to enhance ...

  • Better surfaces could help dissipate heat

    Heat transfer in everything from computer chips to powerplants could be improved through new analysis of surface textures. Written by David Chandler, MIT News Office.You can read the original new in MIT NewsCooling systems that use a liquid that changes phase — such as water ...

  • Top ten United States retail chains with cleantech initiatives

    Many retailers are not looking at "going green" as just a fad, but rather a new route for businesses to focus on. As consumers become much more aware and start taking on a "green attitude" in relation to the environment, numerous retailers are looking to meet those needs. Today, numerous retailers are implementing a number of sustainable practices that enable them to become much more energy ...


    By GLOBE Foundation

  • Gas detector communication technology for offshore oil and gas platforms

    In few applications is safety as important as on offshore oil and gas platforms. Explosive hazards from hydrocarbon gases and vapours are an ever-present risk, whilst toxic hydrogen sulphide gas and depleted oxygen environments can pose significant risks to personnel. Gas detectors are therefore essential to provide dependable early warning of gas hazards. Gas detectors are permanently installed ...

  • Latest analytical technology ensures biogas efficiency

    Anaerobic Digestion (AD) relies on the ability of specific micro-organisms to convert organic material into a gas that can be used to generate electricity. However, these bacteria require specific conditions if they are to function effectively and instrumentation specialist company HACH LANGE has developed a range of online, portable and laboratory instruments that have enabled a large number of ...


  • Closures of mine a new challenge for Romania

    AbstractThe mining activity is one of the oldest activity in Romania, dating from the year 100 B.C. The gold and silver ores represented one of the riches of our country. In time the economic content of metals diminuend, and the ore mines become non profitable. Due to this situation the best option of the State was the closure and ecological rehabilitation of the mines.The steps for the ...


  • Efficiency beyond pizza money: The military’s gigantic bite

    Is efficiency worth the bother if you save only $5-$10 per month on your energy bill? Many homeowners think not. One dad told us his family would rather save money by just skipping a pizza order once a month. That sentiment is not unusual.   But it is hard to negate the economic value of efficiency if you spend $20 billion per year on energy, as does ...

  • In Situ Biological Treatment for Soil, Sediment, and Sludge

    The main advantage of in situ treatment is that it allows soil to be treated without being excavated and transported, resulting in potentially significant cost savings. However, in situ treatment generally requires longer time periods, and there is less certainty about the uniformity of treatment because of the variability in soil and aquifer characteristics and because the efficacy of the ...

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