exposure level News

  • Should critical levels of plant ozone exposure be lower?

    ‘Critical levels’ of ozone exposure for plants, above which significant adverse effects may occur, are currently calculated by examining ozone’s impacts on only a small number of species. However, researchers have now compared this measure with a new approach which examines all species in a group, and defines the critical levels as the concentration at which 5% of species are ...

  • Hong Kong street-level air quality forecasting and exposure

    CERC are partners in a new 5-year air quality (AQ) & health project that will develop a real-time, urban AQ modelling system capable of analysing and forecasting pollution levels in Hong Kong down to individual street level. PRAISE-HK (Personalised Real-time Air quality Information System for Exposure – ...

  • Managing exposure to nanoparticles in the workplace

    It is estimated that approximately 2 million workers will be employed in nanotechnology industries worldwide in the next fifteen years. A new study reviews an existing framework of occupational risk management and describes possible methods for controlling exposure to nanomaterials in workplaces. The manufacture and use of nanomaterials is increasing. Although this is creating more jobs, those ...

  • The Comet Assay and Occupational Exposure

    The Comet assay is being used with increasing popularity in biomonitoring studies to determine the level of DNA damage in workers exposed to potentially hazardous chemicals and radiation. The assay is an ideal biomarker for such investigations due to its sensitivity and reliability in detecting DNA damage and repair. A large number of research groups are utilising our ...


    By Perceptive Instruments Ltd.

  • 01dB: How to estimate your noise exposure and your vibration exposure...

    The risk assessment caused by noise and vibration allows the identification of exposed workers and a good knowledge of sound and vibration situations to define an adapted action plan. Many workers are exposed daily to occupational noise and vibration. Extended exposure of individuals to intense noise levels generates hearing loss and important deafness troubles. Regarding vibration levels, it can ...


    By ACOEM

  • Noise exposure estimation methods compared

    It is difficult to compare estimates of noise exposure across EU Member States because the methods used to produce the data vary between countries. A new study has investigated five methods of estimating noise exposure and identified some of the reasons for variation in the data they produce. In order to comply with the European Noise Directive (END)1, EU Member States have produced ...

  • Update of radiation exposure guidance for the UK

    Scientists at the Health Protection Agency have published their advice to UK bodies following new international guidance on ionising radiation. The International Commission on Radiological Protection (ICRP) published updated recommendations on protection against ionising radiation in 2007. The Health Protection Agency (HPA) has now published its advice on applying those recommendations. Broadly ...


    By Health Protection Agency

  • Crystalline Silica Exposure can be Deadly

    Earlier this month it was reported at ClaimsJournal.com that the U.S. Department of Labor’s Occupational Safety and Health Administration (OSHA) has fined a marble and granite company over $40,000 for health and safety violations that included workers being exposed to unsafe levels of crystalline silica particles. According to an OSHA Fact Sheet on crystalline silica, “Silica exposure ...


    By Cochrane & Associates, LLC

  • Estimating exposure to excessive noise in cities

    The 2002 Environmental Noise Directive seeks to provide a uniform basis for measuring and addressing noise pollution, one of the most important urban environmental issues for the EU. New research has assessed city-dwellers' exposure to noise and proposes traffic management strategies to reduce harmful levels. Clear evidence is growing for wide-ranging negative health effects of noise pollution, ...

  • Preventing Occupational Exposure Risks to Methane

    Last month, the U.S. Department of Energy (DOE) announced a total of $13 million that will be awarded to twelve, multi-year research projects intended to develop cost efficient and effective ways to mitigate methane emissions from natural gas pipeline and storage infrastructure. Methane is not only a primary component of natural gas, it is also a major greenhouse gas, which is a potential ...


    By Cochrane & Associates, LLC

  • Lead Exposure Impacts Children’s Sleep

    Novel Finding from Penn Nursing Research Shows That Lead Exposure in Early Childhood Increase Risk for Sleep Problems & Excessive Daytime Sleepiness A new research study from the University of Pennsylvania School of Nursing (Penn Nursing) shows that lead exposure in early childhood are associated with increased risk for sleep problems and ...

  • Low-Level Arsenic Exposure Before Birth Associated with Early Puberty and Obesity in Female Mice

    The Female mice exposed in utero, or in the womb, to low levels of arsenic through drinking water displayed signs of early puberty and became obese as adults, according to scientists from the National Institutes of Health. The finding is significant because the exposure level of 10 parts per billion used in the study is the current U.S. Environmental Protection Agency standard, or maximum ...

  • Texas Air Quality Experts Help Prevent Exposure to Hazardous Levels of Lead at Gun Ranges

    Texas is home to a multitude of indoor and outdoor shooting ranges.  Across the entire country, the National Institute for Occupational Safety and Health (NIOSH) estimates there are approximately 9,000 non-military outdoor firing ranges and between 16,000 and 18,000 indoor ranges.  The U.S. military alone operates more than 3,000 indoor firing ranges. Gun ...


    By Cochrane & Associates, LLC

  • Indoor Exposure to Elevated Levels of Mold in Puerto Rico Can Result in Health Concerns

    In 2004, the Institute of Medicine (IOM) found that there was sufficient evidence to link indoor exposure to mold with upper respiratory tract symptoms, cough and wheeze in otherwise healthy people; with asthma symptoms in people with asthma; and with hypersensitivity pneumonitis (HP) in individuals susceptible to that immune-mediated condition.  The Centers for Disease Control and ...


    By Zimmetry Environmental

  • Environment: Speaking the same language on noise exposure

    Quantifying noise exposure will be significantly easier thanks to a new set of common noise assessment methods published today. Comparable data on noise exposure in Europe is a prerequisite to set up EU policies to reduce noise pollution, a growing health and economic concern all over Europe. The new methods – known as Common Noise Assessment Methods in Europe (CNOSSOS-EU) – were ...

  • Take action this summer to reduce exposure to asthma triggers

    Summer heat is here, and that means it is more important than ever for people with asthma or other respiratory ailments to pay close attention to the air quality where they live. Like the weather, air quality can change from day to day or even hour to hour. During the summer when ozone levels rise, the number of people with asthma related symptoms admitted to hospitals and emergency rooms ...

  • Occupational and Environmental Exposures to Antimony Discussed in New Video

    Today, the IAQ Video Network and Cochrane & Associates announced the release of their latest educational video.  Their newest production discusses the silver-white metal known as antimony and potential environmental and occupational exposure concerns.   “Antimony can enter the body when people drink water or eat foods and other substances that ...


    By Cochrane & Associates, LLC

  • OSHA cites company for lead exposure violations

    The Occupational Safety and Health Administration (OSHA) has fined Victory White Metal Co., based in Cleveland, Ohio, over $60,000 after the company was cited for several violations related to lead exposure. Workers were routinely subjected to higher levels of lead than the law permits, despite the fact that the company had previously been warned about the problem in past inspections. Overall, ...

  • Take action this summer to reduce exposure to asthma triggers

    Summer heat is here, and that means it is more important than ever for people with asthma or other respiratory ailments to pay close attention to the air quality where they live. Like the weather, air quality can change from day to day or even hour to hour. During the summer when ozone levels rise, the number of people with asthma related symptoms admitted to hospitals and emergency rooms ...

  • Worker exposure and the hazards of abrasive blasting materials

    Late last year, the Occupational Safety and Health Administration (OSHA) published a Fact Sheet entitled, “Protecting Workers from the Hazards of Abrasive Blasting Materials.”  The four page document discusses the need for employers to protect workers from hazardous dust levels, toxic metals and the high levels of noise associated with abrasive blasting. Abrasive ...


    By Cochrane & Associates, LLC

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