exposure level Articles
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Airborne chemical elements: correlation between atmospheric levels and lichen content
Concentrations of As, Cd, Co, Na, Sb, Se and Zn have been measured in atmospheric particulate matter and Parmelia sulcata Taylor transplants at a suburban and industrial area. Levels in particulate matter were found to be much lower than European target values, Californian Acute Inhalation Reference Exposure Levels and Ontario's Ambient Air Quality Criteria. Correlations between elemental content ...
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Occupational exposures to lead-based paint in structural steel demolition and residential renovation work
Occupational exposures to lead are characterised for a number of different lead-based paint abatement techniques in two work settings: residential renovation and structural steel demolition. Exposure levels reported during heavy structural steel demolition work involving acetylene torch cutting, welding, and abrasive blasting can be more than 100 times greater than the permissible exposure limit ...
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Nanoparticles
Nanoparticle Definition “Nanoparticle” is a catch-all term. There is no consensus on definitions or nomenclature for nanoparticles or nano aerosols. Other terms for this material include “Ultrafine Particle” (less than 100 nm in diameter). Current terminology for measuring worker exposure to particulates does not take particle size ranges into account. Nanometer A ...
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Monitoring - Pollution Prevention Guidelines
Introduction Pollution Prevention Guidelines to provide technical advice and guidance to staff and consultants involved in pollution-related projects. The guidelines represent state-of-the-art thinking on how to reduce pollution emissions from the production process. In many cases, the guidelines provide numerical targets for reducing pollution, as well as maximum emissions ...
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Real-Time Measurement of Outdoor Tobacco Smoke Particles
ABSTRACT The current lack of empirical data on outdoor tobacco smoke (OTS) levels impedes OTS exposure and risk assessments. We sought to measure peak and time-averaged OTS concentrations in common outdoor settings near smokers and to explore the determinants of time-varying OTS levels, including the effects of source proximity and wind. Using five types of real-time airborne particle ...
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Continuous Dust Monitoring In Ambient Air On Production Work Stations - Case study
Customer: Ceramic tile manufacturer Material: Ceramic dust Installation: Close to different workplaces where spot measurements have shown the possibility of exceeding the maximum values Function: Continuous measurement of fine particle exposures and alarms if the permitted thresholds are exceeded ...
By ENVEA
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AMC Contamination-Caused Optical Haze Formation on Surfaces
In this installation of our lithography-focused blog series, we discuss haze formation in lithography applications, and how to mitigate it by monitoring for AMCs. Go here for our previous blog in this AMC Contamination monitoring ...
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Comparative Risk Assessment
' Comparative risk assessment provides a systematic way to compare environmental problems that pose different types and degrees of health risk. It combines information on the inherent hazards of pollutants, exposure levels and population characteristics to predict the resulting health effects. Using data from available sources, rapid, inexpensive comparative risk assessments can identify the most ...
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Overview of Airborne metals regulations, exposure limits, health effects, and contemporary research case study
One of the consequences of the current state of industrialization and an increasing demand for modern conveniences and improved quality of life has been an increased exposure to air pollutants from industrial activities, traffic, and energy production. Regulatory bodies, such as federal, state, and local environmental protection agencies, are responsible for assuring the public that the air is ...
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Overview of Airborne Metals Regulations, Exposure Limits, Health Effects, and Contemporary Research
Health Effects Summary One of the consequences of the current state of industrialization and an increasing demand for modern conveniences and improved quality of life has been an increased exposure to air pollutants from industrial activities, traffic, and energy production. Regulatory bodies, such as federal, state, and local environmental protection agencies, are responsible for assuring the ...
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What pollutants can wet scrubbers control?
Wet scrubbers can control specific air pollutants. Industries producing such pollutants should consider wet scrubbers to minimize environmental impact and personal safety risks. They can help reduce any of the following air pollutants. 1. Inorganic fumes, vapors and gases Many industries use wet scrubbers to control airborne fumes, vapors and gases. If these inorganic pollutants enter the ...
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Ambient Monitoring for Ecotourism - Case Study
Overview Gujarat Tourism association wanted to monitor the effect of increased tourism on the air quality of the tourist spots in real-time. Oizom installed Polludrone at 5 major tourist spots. The solution gave data of particulates generated, harmful gases released and increase in temperature. Gujarat Tourism was able to analyze the environment’s effect on the tourists as well as the ...
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Trends in air quality and population exposure in Santiago, Chile, 1989–2001
This study focused on establishing trends in the period 1988–2001 in PM2.5, PM10 and ozone concentrations in Santiago, Chile, and linking those to population exposure. There is strong seasonality in the concentration levels, driven by prevailing meteorological conditions, with the concentration of particulates peaking at the beginning of winter, whereas the ozone concentration is highest during ...
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Monitor for detecting and assessing exposure to airborne nanoparticles
Abstract An important safety aspect of the workplace environment concerns the severity of its air pollution with nanoparticles (NP; \100 nm) and ultrafine particles (UFP; \300 nm). Depending on their size and chemical nature, exposure to these particles through inhalation can be hazardous because of their intrinsic ability to deposit in the deep lung regions and the possibility to subsequently ...
By Oxility BV
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Designing and Implementing Perimeter Air Monitoring Programs
Perimeter or fenceline ambient air quality and meteorological monitoring programs have become increasingly valuable at hazardous waste, landfill, dredging, ports, and MGP remediation sites. Air quality monitoring programs protect public health and reduce owner liability related to excavation. When ...
By AECOM
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Particulate Matter monitoring – PM10
What is PM10? “PM”, Particulate Matter, is not a single pollutant, but refers to a complex mixture of solids and aerosols of varying shape, size, and chemical composition and may contain many chemical species like organic compounds, inorganic ions, metallic compounds, elementary carbon, etc. So, these atmospheric particles are defined by their diameter for air quality regulatory ...
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Air quality in Europe — 2013 report
Air quality continues to be a very important issue for public health, the economy and the environment. Europe has significantly cut emissions of several air pollutants in recent decades, greatly reducing emissions and exposure to substances such as sulphur dioxide (SO2), carbon monoxide (CO), benzene (C6H6) and lead (Pb). Despite improvements over several decades, air pollution continues to ...
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Dust monitoring – PM100
What is PM100? “PM” (Particulate Matter) is not a single pollutant but refers to a complex mixture of solids and aerosols of varying shape, size, and chemical composition. It may contain many chemical species like organic compounds, inorganic ios, metallic compounds, elementary carbon, etc. These atmospheric particles are definable by their diameter for air quality regulatory ...
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Air Particulate Monitoring – PM1
What is PM1 “PM” (Particulate Matter) is not a single pollutant but refers to a complex mixture of solids and aerosols. Which are of varying shape, size, and chemical composition. Which may contain many chemical species like organic compounds, inorganic ios, metallic compounds, elementary carbon, etc. These atmospheric particles are definable by their diameter for air quality ...
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Particulate Matter monitoring – PM2.5
What is PM2.5? “PM”, Particulate Matter, is not a single pollutant, but refers to a complex mixture of solids and aerosols of varying shape, size, and chemical composition and may contain many chemical species like organic compounds, inorganic ions, metallic compounds, elementary carbon, etc. So, these atmospheric particles are defined by their diameter for air quality regulatory ...
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