water toxicity test Articles

  • The Benefits of an Integrated Air and Water Pollution Control Partner

    Although there has been substantial progress during the past several decades in reducing pollution, the EPA, other federal agencies and local governments continue to add and revise requirements and standards, making compliance a challenge for the industrial sector. These companies also face increasing public pressure not just to meet but to exceed pollution control standards, as studies continue ...

  • Improved Determination of Volatile Organic Compounds in Water by SPME and GC/MS: ISO Standard 17943

    The analysis of water for volatile organic compounds is important due to their toxicity.The current methods for this determination lack of sensitivity, selectivity or capability for automation. This paper presents the new ISO 17943 Standard using Solid Phase Microextraction (SPME) and GC/MS. The sample preparation by SPME enables limits of detection and easy automation of the whole method. GC/MS ...

  • Improved UV/O3 method for measuring the chemical oxygen demand

    We improved the ultraviolet (UV)/O3-based method for measuring chemical oxygen demand (COD) in water. An on-line COD monitoring device was developed and the UV/O3 method was used to oxidize sample solutions. A model was established by using support vector machines (SVM) algorithm to estimate dissolved oxygen and CO2 in solutions. Based on the measured data by each sensor ...


    By IWA Publishing

  • TenCate Protective Fabrics - Case Study

    Salts, dyes and acid removal from textile production wastewater TenCate Advanced Textiles BV develops and produces protective and safety fabrics for industrial garments, emergency response (e.g. fire fighters) and military garments. Wastewater at the plant in the Dutch town of Nijverdal contains - among others - sizing agents, salts, dyes and finishing products. Due to the ...


    By Paques B.V.

  • How to Monitor Mercury Emissions

    In recent years, mercury levels in the environment and in the food chain have risen substantially mainly due to human activities. As a long-range pollutant it can affect areas located thousands of kilometers away from its original source of emission. It’s no wonder then that the regulatory pressure to monitor mercury emissions grows stronger.  Before diving ...


    By Gasmet Technologies Oy

  • What the REC? Understanding RECs, CRECs and HRECs in a Phase I Environmental Site Assessment

    With all of the acronyms in the environmental consulting industry, reading a Phase I Environmental Site Assessment report can be a challenge.  And if the report contains the acronym REC, confusion may give way to dread. A Recognized Environmental Condition, or REC, is a ...


    By PM Environmental

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you