(1 RC) - Anthrax is a zoonotic disease caused by infection with Bacillus anthracis and still occurs in agricultural regions of the Americas, sub-Saharan Africa, central and southwestern Asia, and southern and eastern Europe. Sheep, goats, cattle, and other herbivores are primarily affected. Humans are secondarily infected through contact with infected animals, contaminated animal products… (CDC, Nov 2023)
(2 RC) - The WHO air quality guidelines set goals for protecting public health on a worldwide scale. They were established through a rigorous process of revision and evaluation of scientific evidence on the health effects of air pollutants and, like other WHO guidelines, are not legally binding recommendations… (WHO Global AQG, 2021)
(1 RC) - The WHO air quality guidelines set goals for protecting public health on a worldwide scale. They were established through a rigorous process of revision and evaluation of scientific evidence on the health effects of air pollutants and, like other WHO guidelines, are not legally binding recommendations… (WHO Global AQG, 2021)
(4 RC) - The WHO air quality guidelines set goals for protecting public health on a worldwide scale. They were established through a rigorous process of revision and evaluation of scientific evidence on the health effects of air pollutants and, like other WHO guidelines, are not legally binding recommendations … (WHO Global AQG, 2021)
(1 RC) - Increased engineered nanomaterial production, combined with widespread formulation and incorporation into nanomaterial enabled products, has increased the likelihood of occupational exposure. A key component in managing the occupational risk is exposure assessment… (NIOSH, July 2022)
(3 RC) - In the United States and other developed nations, public health is a key function of government. A healthy citizenry is more productive, content, and prosperous; high rates of death and disease, on the other hand, can severely hamper economic productivity and foster social and political instability. The burden of disease makes it difficult for citizens to work consistently… (Microbiology Chapter 16, 2016)
(4 RC) - The respiratory tract is one of the main portals of entry into the human body for microbial pathogens. On average, a human takes about 20,000 breaths each day. This roughly corresponds to 10,000 liters, or 10 cubic meters, of air. Suspended within this volume of air are millions of microbes of terrestrial, animal, and human origin—including many potential pathogens. A few of these pathogens will cause relatively mild infections like sore throats and colds… (Microbiology Chapter 22, 2016)
(4 RC) - To prevent the spread of human disease, it is necessary to control the growth and abundance of microbes in or on various items frequently used by humans. Inanimate items, such as doorknobs, toys, or towels, which may harbor microbes and aid in disease transmission, are called fomites. Two factors heavily influence the level of cleanliness required for a particular fomite and, hence, the protocol chosen to achieve this level… (Microbiology Chapter 13, 2016)
(3 RC) - Biofilms were long considered random assemblages of cells and had little attention from researchers. Recently, progress in visualization and biochemical methods has revealed that biofilms are an organized ecosystem within which many cells, usually of different species of bacteria, fungi, and algae, interact through cell signaling and coordinated responses… (Microbiology Chapter 9, 2016)
(3 RC) - Public health measures in the developed world have dramatically reduced mortality from viral epidemics. But when epidemics do occur, they can spread quickly with global air travel. Until the late 1930s and the advent of the electron microscope, no one had seen a virus. Yet treatments for preventing or curing viral infections were used and developed long before that… (Microbiology Chapter 6, 2016)
(4 RC) - Eukaryotic microbes are an extraordinarily diverse group, including species with a wide range of life cycles, morphological specializations, and nutritional needs. Although more diseases are caused by viruses and bacteria than by microscopic eukaryotes, these eukaryotes are responsible for some diseases of great public health importance… (Microbiology Chapter 5, 2016)
(4 RC) - Prokaryotes have an important role in changing, shaping, and sustaining the entire biosphere. They can produce proteins and other substances used by molecular biologists in basic research and in medicine and industry. All living organisms are classified into three domains of life: Archaea, Bacteria, and Eukarya… (Microbiology Chapter 4, 2016)
(2 RC) - Diacetyl and 2,3-pentanedione have a long history as components of food, suggesting that exposures can occur in diverse work-places. They occur as natural products in many foods. Diacetyl imparts the flavor and aroma of butter to many common foods and drinks including butter, cheese, yogurt, beer, and wine… (NIOSH Standard, Oct 2016)
(3 RC) - The goal of this chapter is first to present a numerical estimate of the risk of developing respiratory disease due to occupational exposure to diacetyl using standard epidemiological methods. This estimate is based on statistical models that describe the relationship between exposure to diacetyl and the development of impaired lung function in a known population of exposed employees… (NIOSH Standard, Oct 2016)
(4 RC) - Work practices are procedures followed by employers and employees to control hazards in the workplace. The use of good work practices, incorporated into the facility’s standard operating procedures, can help reduce exposures to diacetyl, 2,3-pentanedione, and other flavoring compounds while at the same time maximizing efficiency and product quality… (NIOSH Standard, Oct 2016)
(.50 RC) - Employers should develop and implement comprehensive occupational safety and health programs to prevent occupational injuries, illnesses, and deaths. To be successful, safety and health programs should be developed and implemented as part of an employers management system, with strong management commitment, employee involvement, and occupational safety and health expertise. A safety and health program designed to protect employees from the adverse effects of exposure to diacetyl, 2,3-pentanedione, and other flavoring compounds… (NIOSH Standard, Oct 2016)
(2 RC) - NIOSH received a request for help in assessing worker exposure to isocyanates during spray painting of automobiles. An autobody repair shop whose other concerns for worker exposure included solvents, total dusts, noise, carbon monoxide, and metals. An initial survey was conducted in September 1995 and an interim report was issued in January 1996. To assess effects of seasonal variation… (NIOSH, June 1995)
(4 RC) - This report deals with safe water supply extending from source to consumer, including plumbed-in devices, domestic and building environments, and water supplied in bottles or packages. The different ways in which drinking-water may be used in the home are considered, and specific concerns in higher-risk settings and populations at increased risk are addressed. … (WHO, 2003)
(.50 RC) - The Census of Fatal Occupational Injuries, part of the Bureau of Labor Statistics Occupational Safety and Health Statistics (OSHS) program, is a count of all fatalities resulting from workplace injuries occurring in the U.S. during the calendar year. The CFOI uses a variety of state, federal, and independent data sources to identify, verify, and describe fatal work injuries. This ensures counts are as complete and accurate as possible. For the 2021 data, over 23,900 unique source documents were reviewed as part of the data collection process… (USDOL, Dec 2022)
(2 RC) - This paper covers the specific topics of: A. How cleaning reduces HVAC energy consumption. B. How energy consumption can be calculated with pre‐cleaning and post‐cleaning measurements. C. Mechanical and other issues within HVAC systems that contractors encounter while inspecting and/or cleaning that can be reported and corrected to maximize HVAC energy efficiency… (NADCA, Nov 2016)
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