toxicologist Articles

  • Hormesis: Why it is Important to Toxicology and Toxicologists - Critical Review

    This article provides a comprehensive review of hormesis, a dose–response concept that is characterized by a low-dose stimulation and a high-dose inhibition. The article traces the historical foundations of hormesis, its quantitative features and mechanistic foundations, and its risk assessment implications. The article indicates that the hormetic dose response is the most fundamental dose ...

  • On the road from environmental biomonitoring to human health aspects: monitoring atmospheric heavy metal deposition by epiphytic/epigeic plants: present status and future needs

    For the past few years, a strong and intensive combined study by analytical scientists and biologists on bioindication and biomonitoring has developed. To achieve a more public-related prophylactic healthcare feature derived from these biotechniques in the future, the collaboration between analytical scientists, ecotoxicologists and especially human toxicologists has to be strongly intensified ...


    By Inderscience Publishers

  • An assessment and perception of the hazards of pesticide use in the aquatic environment

    Various models are available to help assess the risk of chemicals to the aquatic environment. The hazard posed by pesticides in use in Prince Edward Island, Canada was estimated by a model based on fugacity. Groups of individuals currently working in the field of aquatic toxicology were asked to rank 20 of these pesticides in order of decreasing hazard. There is little agreement between ...


    By Inderscience Publishers

  • The Food Quality Protection Act - Implementation and Legal Challenges

    The U.S. Congress enacted the Food Quality Protection Act (FQPA)1 in 1996. In so doing, Congress revolutionized the fundamental principles of food safety and ushered in a new regulatory and legal framework for addressing food safety issues. The legal, regulatory, and scientific challenges posed by the U.S. Environmental Protection Agency’s (EPA’s) and other federal agencies’ implementation of ...


    By Bergeson & Campbell, P.C.

  • How do aquatic communities respond to contaminants? It depends on the ecological context

    Context dependency refers to variation in ecological patterns and processes across environmental or spatiotemporal gradients. Research on context dependency in basic ecology has focused primarily on variation in the relative importance of species interactions (e.g., competition and predation) among communities. In this Focus article, the authors extend this concept to include variation in ...


    By John Wiley & Sons, Ltd.

  • Has Quantitative Risk Assessment Been of Benefit to the Science of Toxicology?

    Quantitative approaches to evaluating the risks of chemical toxicity entered the lives of toxicologists in the mid- 1970’s, and the continuing interaction of toxicology and risk assessment has been of benefit to both disciplines. I will summarize the origins of the interaction, the reasons for it, and the difficult course it has followed. In doing so, I will set the stage for a discussion of how ...


    By ENVIRON

  • Automated information retrieval for quantitative risk assessment data

    The amount of toxicologic literature available can be so copious as to present significant challenges to risk assessors tasked with identifying key studies. As a new approach to managing such information, an information specialist and a toxicologist developed an open source text mining computer program consisting of knowledge bases and search algorithms. Quantitative toxicologic data, such as ...


    By Inderscience Publishers

  • An integrated health risk assessment of contaminated sites under aleatory and epistemic uncertainties

    An integrated health risk assessment framework including contaminant transport model, exposure assessment models, physiologicallybased pharmacokinetic (PBPK) modelling, and dose-response assessment was developed in this paper to bridge the gap amongst environmental engineers, toxicologists, and researchers in environmental health science and to improve the comprehensive understanding of the ...


    By Inderscience Publishers

  • Chemical Exposure from Imported Food Products

    Chemical Exposure from Imported Food Products Requirement for Routine Monitoring Due to the large quantities of food being imported by countries in today's global markets, routine monitoring of these imported products for chemical contaminants is essential to ensure compliance with chemical safety regulations. Chemicals that have long been removed from the supply chain for products and ...


    By Creme Global

  • Risk Assessment/Toxicology Promotes Health and Welfare of Humans and Ecosystems

    Hundreds of regulations protecting the health and welfare of humans and ecosystems impact industrial and legal firms every day. Commonly, these regulations are associated with protecting human health and the environment from risks associated with site cleanup and closure or remediation projects. Other major health risk regulations are derived from Natural Resources Damage Assessment (NRDA), ...


    By AECOM

  • FSANZ Publishes Reports on the Use of Nanotechnology in Food Additives and Packaging

    In June 2016, Food Standards Australia New Zealand (FSANZ) announced the availability of two reports on the potential use of nanotechnologies in existing food additives and food packaging. FSANZ retained an expert toxicologist to review publicly ...


    By Bergeson & Campbell, P.C.

  • Intro to Industrial Hygiene

    Let's take a peek behind the curtain of one of our practitioner specialties--industrial hygiene. Read on for an interview with one of Antea Group's experienced pros. What is Industrial Hygiene? Industrial hygiene is a science and art devoted to the anticipation, recognition, evaluation, prevention, and control of those environmental factors or stresses arising ...


    By Antea Group - USA

  • Debate Continues on TCE Toxicity Estimates: TCE Remediation Plans Could be Affected

    Untitled Document Debate on EPA's draft toxicity factors for trichloroethene (TCE) continues both inside and outside of EPA. In August 2001, EPA published an External Review Draft TCE Health Risk ...


    By AECOM

  • Occupational health and safety - right to know Vs right to understand

    On the heels of yet another federal investigation attributing chemical-related deaths and injuries to defective hazard communications systems in the workplace, few would question that a public health crisis is afoot. More than 30 million American workers are exposed each day to hazardous chemicals at the workplace, with upwards of a halfmillion chemicals being stored and used in today's ...

  • Editor’s perspective - solvent cleanup standards

    Risk-assessment science is a critical tenet of the remediation industry, as it is the underlying basis of the majority of cleanup work performed. However, risk-assessment science is, for the most part, poorly understood by a large portion of environmental professionals. Most seasoned professionals understand the basic risk-assessment concepts related to the dose-response and exposure duration ...

  • U.S. EPA Updates Vapor Intrusion Guidance

    Untitled Document The attention of EPA and state environmental agencies to assessing the vapor intrusion pathway at potentially ...


    By AECOM

  • Speaking the Same Language

    Accidental poisonings or overdoses can occur with common and even seemingly harmless substances. The treatment of these toxicological events is never easy. Time is a critical factor and the patients are frequently unable to participate in their own treatment due to an altered state or unconsciousness. When recreational or street drugs are involved, victims often cannot articulate what they took ...


  • Toxicity Identification Evaluation (TIE) as a Tool for Water Quality Management

    Whole effluent toxicity (WET) testing has evolved into a critical element of many National Pollutant Discharge Elimination System (NPDES) permits issued to both industrial and municipal dischargers. Over 6,500 dischargers to both fresh and salt waters are required to conduct toxicity tests to determine if their effluent might be potentially toxic to organisms in the receiving system. While ...


    By AECOM

  • Costco Bulks Up Compliance Program with 3E

    Background Costco Wholesale Corporation operates an international chain of membership warehouse stores, mainly under the ""Costco Wholesale"" name, that carry quality, brand name merchandise at substantially lower prices than typically found at conventional wholesale or retail sources. As of March 2004, Costco operates 319 warehouses in 38 U.S. states and Puerto Rico with more than ...


    By 3E Company

  • Costco Bulks Up Compliance Program with 3E

    Untitled Document Background Costco Wholesale Corporation operates an international chain of membership warehouse stores, mainly under the "Costco Wholesale" name, that carry quality, brand ...


    By 3E Company

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