ice profiler Articles

  • Ice rinks and arenas vulnerable to harmful pollutants

    PPM Technology’s Mini IAQ Profile Monitor system used by ice rinks to monitor levels of harmful gases. Indoor Air Quality (IAQ) is a significant concern in ice rinks and arenas; these facilities are especially vulnerable to the affect of an unhealthy indoor environment as fuel-burning equipment such as ice resurfaces are used indoors. ...


    By PPM Technology

  • Notable increases in nutrient concentrations in a shallow lake during seasonal ice growth

    Nutrients may be eliminated from ice when liquid water is freezing, resulting in enhanced concentrations in the unfrozen water. The nutrients diluted from the ice may contribute to accumulated concentrations in sediment during winter and an increased risk of algae blooms during the following spring and summer. The objective of this study was to evaluate the influence of ice cover on nitrogen ...


    By IWA Publishing

  • Characteristics and indications of hydrogen and oxygen isotopes distribution in lake ice body

    Stable isotopes have been used to identify the characteristics of precipitation, evaporation, basin hydrology, and residence times. However, lakes in the cold regions are usually covered by ice for 5–6 months. To get a better understanding of stable isotopes characteristics and indications in lake ice bodies, ice and water were sampled during the icebound season in both the ice and water ...


    By IWA Publishing

  • Supplier profile: Aeration Industries Int’l. Inc.

    Pollution Engineering recently spoke with Aeration Industries co-founder and President Dan Durda. Mr. Durda co-founded the company, which celebrates its 30* anniversary this year, with his father, Joseph Durda, in Minneapolis, Minn. Known as the land of 10,000 lakes, a healthy fish population was very important to in-state residents. The company's first products were thus designed to reduce the ...

  • Major Hydrographic Survey Using Valeport rapidSV Profiler - Case Study

    A major Hydrographic Survey in the Bering Sea off northwestern Alaska has just been successfully completed using the Teledyne/Oceanscience rapidCAST profiling system using the Valeport rapidSV profiler. As reported in Hydro-International recently (see full article), the ...


    By Valeport Ltd

  • Population structure and genetic diversity of the trinitario cacao (Theobroma cacao L.) from Trinidad and tobago

    Population structure of the old Trinitario cacao (Theobroma cacao L.) in Trinidad was evaluated from the 35-microsatellite multilocus profile of 32 relict clones from abandoned cocoa estates in Trinidad (TRD) and 88 Imperial College selections (ICS) clones conserved in the International Cocoa Genebank, Trinidad. Ancestry was derived by comparison to 34 representative genotypes of Criollo, Central ...

  • A 50-years record of dichloro-diphenyl-trichloroethanes and hexachloro-cyclohexanes in lake sediments and penguin droppings on King George Island, Maritime Antarctic

    Since the ban on the use of organochlorine pesticides (OCPs) such as dichloro-diphenyl-trichloroethane (DDT) and hexachlorocyclohexane (HCH) in agriculture, their levels have generally dropped. In a number of cases, however, the levels of these OCPs were found to be unchanging or even increasing after the ban. With the aim to unveil the possible causes of these exceptions, we collected two lake ...


    By IOS Press

  • Paleoflood marks in sandur morphometry as the result of the glacier surge (NW Poland)

    In the Pomeranian marginal zone of the last Pleistocene glaciation specific morphometric features are found. They represent indicators of surging events affecting the individual outlet glacier lobes of the Scandinavian Ice Sheet margin. They are assumed to have been active during the climate warming of the Weichselian glaciation decay. Many tunnel valleys deep-rooted in the proximal slopes of ...


    By IWA Publishing

  • New monitoring technology helps reveal Arctic secrets

    A group of Arctic researchers has employed the latest monitoring technology to investigate the effects of climate change, by measuring temperature and salinity in the water column beneath surface ice. The results of the investigation, which utilised YSI’s new 'Castaway-CTD', could cast new light on our understanding of the ways in which shifting ocean currents impact upon the climate in ...

  • Aquantum Slides to Victory with Xylem

    When it comes to winter sports, some things are essential but nothing perhaps more so than snow and, in this instance, ice. As with many sports, conditions have to be right, with too many moisture and temperature fluctuations posing a real risk to the safety of athletes. For engineering company Aquantum, this was a primary concern for the bobsleigh track in Sochi, ...


    By LOWARA - a Xylem brand

  • Time-resolved ammonia measurement in vehicle exhaust

    The objective of this study was to identify the influence of sampling and analytical approach on the quality of NH3 emission data of a gasoline-fuelled three-way catalyst vehicle. NH3 concentration measurements have been performed in the tailpipe and in the diluted exhaust after a constant volume sampling (CVS) system during five different test cycles. Chemical ionisation mass spectrometry ...


    By Inderscience Publishers

  • Numerical weather Simulations in Support to the CCU CAML Lidar Measurements: Preliminary Results for the Case Study of 21st September 2006

    On 21st September the CCU-CAML lidar at Ispra performed measurements of aerosol vertical profiles between 8.00 and 10.00 UTC. Quite high values of aerosols concentration were registered up to about 1 km altitude during the day. Interestingly, the lidar revealed a descent of the highest aerosol loads towards the ground during the morning. Corresponding to this descent, particulate matter (PM) mass ...


  • Monitor Volatile Organic Compounds (VOC’s) with PPM Technology’s IAQ Monitor

    Volatile organic compounds (VOC’s) are emitted as gases from certain solids or liquids. VOCs include a variety of chemicals, some of which may have short- and long-term adverse health effects. Concentrations of many VOCs are consistently higher indoors (up to ten times higher) than outdoors. VOC’s is one of numerous sensor options that can be incorporated into PPM Technology’s ...


    By PPM Technology

  • Glyphosate and AMPA in drinking water

    Carcinogenic or not? The broad-spectrum herbicide glyphosate is used all over the world in agriculture. Alongside farming, the chemical is also used for weed-killing in domestic gardens and in public and private spaces kept free from «vegetal invasion», such as railway tracks. Glyphosate has been used since the 1970s in pesticides and was hitherto thought to be harmless at ...


    By Metrohm AG

  • Oil and gas incumbents: the upside of cleantech collaboration

    The global transition to a low-carbon economy is now inevitable. Yes, there will be winners and losers. To remain dominant, energy incumbents (like Enbridge and Royal Dutch Shell) must find scalable, low-carbon energy assets to develop. Cleantech collaborations—partnerships between traditional energy companies and emerging cleantech stars—offer new ‘cleanfield’ ...


    By GLOBE Foundation

  • Advanced gas detection technology supports arctic greenhouse gas research

    Enormous quantities of greenhouse gases (GHG) exist within Arctic ice and frozen soils, so with the threat of global warming, a clear understanding of the relationship between GHG in the atmosphere and in the ice/soil is vital because melting of permafrost could cause a dangerous climate tipping point. There can be few more challenging environments for monitoring gases, but PhD researcher Martin ...


    By Quantitech Ltd

  • Advanced Gas Detection Technology supports Arctic Greenhouse Gas Research

    Enormous quantities of greenhouse gases (GHG) exist within Arctic ice and frozen soils, so with the threat of global warming, a clear understanding of the relationship between GHG in the atmosphere and in the ice/soil is vital because melting of permafrost could cause a dangerous climate tipping point. There can be few more challenging environments for monitoring gases, but PhD researcher Martin ...


    By Gasmet Technologies Oy

  • Spatial analysis of Marine Protected Area networks in Europe`s seas

    1.1 Aims and scope of the report This European Environment Agency (EEA) technical report presents an overview of the 2012 spatial distribution of the networks of marine protected areas (MPAs) established in the waters of EU), excluding overseas territories. The report contains a detailed explanation of the methodology and data sets used and the reasoning behind the spatial ...

  • Renewable Energy Projects on Contaminated Property: Managing The Risks

    Managing brownfields risks requires complex technical and legal analysis. Analyzing risks in renewable energy projects is equally complex. Both projects involve several contracts that must be integrated and made consistent with each other. Combining these types of projects creates a unique combination of risks, including, for sites where institutional/engineering controls are part of the remedy, ...

  • Coming In Out of the Cold: Hybrids Put to the Test

    Untitled Document Point Roberts, WA, Delta B.C.- May 25, 2004 With gas prices reaching an all time high and not much promise of an end in sight, hybrid technology is falling under the lens of some careful ...


    By Investorideas.com

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