drinking water mercury Articles

  • Mercury

    Abstract Mercury is a naturally occurring metal found in the Earth’s crust. At high doses, mercury is known to cause adverse human health effects. Over the past several years, EPA (the Environmental Protection Agency) has focused on mercury exposures because of its potential to cause adverse human health and environmental effects, and because of its persistence and widespread distribution in the ...


    By Valahia University

  • Aging evaluation of medium-pressure mercury lamps under typical operating conditions for drinking water disinfection applications

    Little is known regarding how medium pressure (MP) ultraviolet (UV) lamps age under typical operating conditions, yet a number of assumptions regarding lamp aging are utilized when UV reactors are validated, often as unfounded approximations. This study was designed to evaluate the aging of MP UV lamps utilized with a closed-vessel UV reactor technology for drinking water disinfection ...

  • Mercury Ban – Printers Unaffected

    The mercury ban debate has been rife with speculation, confusion, strong accusations and well, a little bit of misleading information. So, together with Brendan Perring of Print Monthly I have been getting to the bottom of this tangled web of information. We have been in contact with the National Measurement and Regulations Office (NMRO) to seek clarification, and today I found myself meeting a ...


    By Alpha Cure (UK)

  • Effect of mercury on the human health and environment: an overview

    This article aims to review and to demonstrate the effect of mercury on the human health and environment. Mercury is one of the 12 toxic pollutants identified by the US Environmental Protection Agency and can be toxic at low levels in the environment. Mercury can stay in the atmosphere for up to a year. When released to the air, mercury is transported and deposited globally. Mercury ultimately ...


    By Inderscience Publishers

  • Legal Lookout: EPA Expands Mercury Reduction Program

    Untitled Document Mercury is a naturally occurring metal found in the Earth’s crust. At high doses, mercury is known to cause adverse human health effects. Over the past several ...


    By Bergeson & Campbell, P.C.

  • The determination of mercury at ultratrace levels using FIMS and amalgamation technique

    The PerkinElmer Flow Injection Mercury System (FIMS) is used in combination with an amalgama¬tion preconcentration technique to determine Hg at ultratrace concentrations. Using a 10-mL sample volume, the instrumental detection limit is 0.3 ng/L. The method detection limit obtained in drinking water is 1.0 ng/L with a spike recovery of 100 ± 4%. The operating conditions for the ...


    By PerkinElmer, Inc.

  • Mercury contamination of surface water and fish in a gold mining region (Cuyuni river basin, Venezuela)

    In the Cuyuni river basin (Venezuela), artisanal gold mining has caused significant mercury pollution due to extensive use of Hg in Au amalgamation processes. High Hg concentrations up to 4.60 ?g/l were recorded in surface water samples (rivers, streams, mining ponds, springs), which are three orders of magnitude higher than normal worldwide background values (0.003?0.005 ?g/l). Furthermore, Hg ...


    By Inderscience Publishers

  • Determination of mercury with on-line addition of stannous chloride uUsing an axial ICP-OES

    Mercury is one of the most toxic heavy metals in the environment. It is therefore important to routinely monitor the Hg level in many types of samples. The US EPA approved methodology for the determination of Hg uses the cold vapor technique with stannous chloride as the reducing agent1. This methodology is applicable to Hg determinations in a range of waters (drinking, ground, surface, sea and ...


  • The application of Flow Injection Technology to automating cold vapor MERCURY analyses

    This document describes the application of flow injection technology to cold vapor mercury analyses. It can be obtained from PerkinElmer by requesting method number ENVA-100. Appendices 1 and 2 show letters from the US EPA indicating acceptability through the Alternate Test Program for both drinking water and wastewater sample analysis. 1.0 Scope and Application 1.1 This ...


    By PerkinElmer, Inc.

  • Analysis of low levels of metals in drinking water with a scanning array ICP emission spectrometer and ultrasonic nebulization

    Drinking water is an important factor in exposure to environmental contaminants and is used in preparing foods and beverages for human consumption. Therefore, great care is used to verify that it is free of or contains acceptable limits of toxic substances. With respect to heavy metals and other toxicologically relevant elements, atomic spectrometric techniques are frequently used to determine ...


    By PerkinElmer, Inc.

  • Removal of trace mercury (II) from aqueous solution by in situ MnOx combined with poly-aluminum chloride

    Removal of trace mercury from aqueous solution by Mn (hydr)oxides formed in situ during coagulation with poly-aluminum chloride (PAC) (in situ MnOx combined with PAC) was investigated. The efficiency of trace mercury removal was evaluated under the experimental conditions of reaction time, Mn dosage, pH, and temperature. In addition, the ionic strength and the ...


    By IWA Publishing

  • Water filters fact sheet

    Why do people use water filters? Water filters are used to upgrade the quality, taste and appearance of water in the home. Water filters can also be used to eliminate concerns about contaminants and other potential health hazards in tap water. What do water filters do? Water filters eliminate a number of common water problems in the home, ...


    By Kinetico International

  • The Cryptosporidium Water Crisis

    One major event to strike the water industry recently, was the Lancashire Cryptosporidium water crisis. Cryptosporidium is a parasite found in livestock, which can have some severe consequences on the gastrointestinal system when ingested. Lancashire has seen 300,000 households suffer from a water contamination incident that’s forced residents to buy bottled water for ...


    By Partech (Electronics) Ltd.

  • How LEDs Will Change Water Purification

    Ultraviolet (UV) light has been naturally purifying water for centuries. With clear skies, our sun can inactivate water-based pathogens in six hours minimum. Cloudy skies or unclear water causes imperfect conditions. These conditions allow for bacteria to grow and make natural water sources unsafe to use. Fortunately, we have developed several types of water disinfection, ranging from chemicals ...


    By AquiSense Technologies

  • Mining Water Quality Application

    Isaac Plains Coal Mine Isaac Plains is an open cut coal mine, in Northern Queensland, Australia. The Isaac Plains Project operates under an Environmental Authority (EA). One of the environmental monitoring requirements which must be met is monitoring water. These include potable water, mine affected water, natural creek flows, water releases, groundwater and the receiving environment. The ...


    By ANDalyze

  • Water pollution · Canarina DESCAR software

    Natural waters contain micro-organism as well as solutes. There is a distinction between ‘pure’ water, meaning water that is fit to drink and pure water that is a single substance. A water pollutant is a substance that prevents the use of water for a specified purpose. The signs of polluted water are obvious. Poor drinking water tastes and smell bad. ...

  • Heavy Metals Water Testing Powered by DNA

    Water pollution is a worldwide problem affecting developing and developed countries alike. Heavy metal contaminants are one prevalent type of water pollutant. They are persistent in the environment once d is charged and removal from source waters is necessary to ensure a clean drinking water supply. The problem of heavy metal pollution arises from several sources. Heavy metals such as uranium can ...


    By ANDalyze

  • Utilizing unconventional water sources for industrial reuse

    Reclamation and reuse of unconventional wastewater sources for plant raw water, cooling water and process pre-treatment has increased substantially due to increases in the cost of drinking water, recurring water shortages that can impact business operations, and tightening government regulation. Water is required in almost every industrial sector for the processing and manufacture of products. ...


    By WesTech Engineering, Inc.

  • Emerging Trends In UV Disinfection For Water Treatment

    Introduction The UV disinfection industry has experienced tremendous growth over the last 20 years.  The development of new UV technologies over this period has been a perfect example of an industry investing to meet market demand – in this case demand for an effective, low cost, and environmentally friendly disinfection technology.  The acceptance of UV disinfection at water plants ...

  • The Hidden Dangers of Industrial Mop Water, Examining little-known threats to the environment & wastewater treatment processes

    When we think of mop water, most likely we think of our kitchen floor. In industrial plants, however, mop water could contain a toxic blend of chemicals that are mopped off the floor, and sometimes end up in our rivers, streams and municipal wastewater systems. While we consider the health of our environment, we don’t necessarily realize the hidden dangers of mop water. This article will ...

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