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Excavation - Answer Any man-made cut, cavity, trench or depression in an earth surface formed by earth removal Trench excavation - Answer A narrow underground excavation with a depth greater than the width but no wider than 15 ft. Competent Person - Answer One who is capable of identifying existing and predictable hazards in the surroundings, or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has authorization to take prompt corrective ...

The organization within the Department of Labor (DOL) that is authorized to conduct job-site inspection is the - Answer Occupational Safety Health Administration The OSHA standards for excavation that employers are required to follow are found in 29 CFR 1926 ________ - Answer Subpart P OSHA's 1926 Subpart P applies to all open ________ made in the earth's surface. Excavations are defined to include ________ - Answer Excavations : Trenches A competent person is one w...

aquifer - Answer a soil that allows for fast movement of water (ex: sand) aquiclude - Answer a soil that has slow movement of water (ex: clay) voids through which water can flow - Answer soils are permeable due to the existence of what? false, high to low - Answer (T/F) in soil, water flows from points of low energy to points of high energy. laminar - Answer when water flows in a smooth orderly fashion (slow velocity) it is considered _______. turbulent - ...

unit weight, strength, stability of slopes, amount of settlement in structures - Answer loose soils must be compacted to: increase (3), decrease (1) compaction - Answer the densification of soil by removal of air and water by means of mechanical energy dry unit weight - Answer degree of compaction measures in terms of: water - Answer compaction and rearrangement of particles facilitated by means of: softening movement - Answer water acts as a ___ agent, and a...

F - They occur in small projects - Answer T/F - Most fatalities and injuries occur in large construction projects T - Answer T/F - Most fatalities occur in project with one or more violations to the OSHA standards. F - It has decreased - Answer T/F - Since the 1980s, the rate of fatalities in excavation has remained relatively constant T - Answer T/F - It is very common for co-workers to get hurt trying to rescue their colleagues T - Answer T/F - A cave-in us...

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Environmental Health - Answer External to the individual host and can be divided into physical, chem, biological and cultural factors. Name types of environmental agents - Answer Chem: air/water, pesticides, consumer products Physical: Radiation, noise, heat Biological: bacteria, viruses and protozoa Social/cultural: SES, ethnicity, education Historically Significant Environmental catastrophes - Answer London Smog (1952)- air pollution episode Minamata Disease (1953)- Me...

Environmental Science is the study of the natural processes that occur in the environment and how humans can affect them. It is an INTERWEB OF: - Answer Humans Natural Resources Pollution Environmental scientists often make recommendations based on probabilities rather than precise answers. True or False? - Answer TRUE Mold that triggers Asthma is an example of what environmental health hazard? Biological Chemical Physical Genetic Traits - Answer Biological ...

6 criteria air pollutants - Answer 1. lead 2. ozone 3. CO 4. SO2 5. particulate matter 6. NO2 health effects of CO - Answer -reduces oxygen delivery to organs and tissues -adverse cardiovascular outcomes -extremely high doses can result in death health effects of N02 - Answer -primarily respiratory and cardiovascular health effects health effects of SO2 - Answer -respiratory -cardiovascular health effects of lead - Answer -respiratory system -renal s...

what term refers to the desire to conquer and exploit nature as quickly as possible? - Answer frontier attitude Which of the 5 disciplines of environmental health has the advantage of being able to conduct randomized controlled trials? - Answer Toxicology Who wrote about interrelationships among living organisms, including humans, and the natural environment? - Answer Rachel Carson Which highly publicized disaster spurred the creation of the Clean Water Act? - Answer ...

6 criteria for air pollutants - Answer 1. carbon monoxide 2. nitrogen dioxide 3. sulfur dioxide 4. lead 5. Particulate matter 6. Ozone Health effects of carbon monoxide - Answer reduces oxygen delivering capabilities to organs and tissues, adverse cardiovascular outcomes, and extremely high doses can result in death Health effects of nitrogen dioxide - Answer respiratory and cardiovascular health effects health effects of sulfur dioxide - Answer respiratory and ...

Environmental Science is the study of the natural processes that occur in the environment and how humans can affect them. It is an INTERWEB OF: - Answer Humans Natural Resources Pollution Environmental scientists often make recommendations based on probabilities rather than precise answers. True or False? - Answer TRUE Mold that triggers Asthma is an example of what environmental health hazard? Biological Chemical Physical Genetic Traits - Answer Biological ...

What did Hippocrates do? - Answer Proposed a connection between environmental factors and human health and lead toxicity What did Galen do? - Answer Acid mists produced during copper mining Pliny the Elder - Answer Sulfur and zinc The Conservation Movement - Answer Government proposed settlement in the Midwest and West Millions of acres given to citizens Cheap and exhaustible resources - Answer Land Timber Wildlife RIch soil Water Frontier attitude - ...

Environmental racism - Answer the disproportionate targeting of minority communities for toxic burdens (like the siting of landfills, incinerators, or toxic industries) Warren County, NC PCB Landfill - Answer - Robert Burns' trucking company illegally disposed of PCB-laden transformer fluid, the plan was to bury this toxic waste in a landfill in Warren Co, a predominantly Black and low-income community - Posed a public health concern - Residents opposed the PCB landfill + prot...

6 Criteria Air Pollutants and an example of source - Answer 1. Lead (battery manufacturers) 2. CO (emission from mobile sources) 3. Particulate Matter (human activities) 4. Ozone (naturally formed) 5. SO2 (fossil fuel combustion) 6. NO2 (motor vehicles) Health effects of the 6 air pollutants - Answer 1. Lead: affects nervous and renal system 2. CO: adverse cardiovascular outcomes 3. Particulate Matter: decrease lung function 4. Ozone: cancer 5. SO2: Respiratory and cardiova...

6 criteria air pollutants -health effects associated w/ them - Answer Criteria air pollutants: "a group of very common air pollutants regulated by EPA on the bases of criteria (info on health and/or environmental effects of pollution)" 1. ozone: breathing impairment, eye irritation 2. nitrogen oxide: lungs and respiratory system, aggravates asthma 3. carbon monoxide: reduction in oxygen-carrying capacity of blood 4. sulfur dioxide: breathing problems, lung damage, aggrava...

Lead (Pb) - Answer sources: used to be in gasoline to reduce engine knock, added to paint once in the air it deposits into soil and household dust health effects: kidney toxicity, anemia, hypertension, miscarriage, neurological problems susceptible populations: low-income, children (hand-mouth behavior), more likely to enter child's brain, accumulates in bone and teeth Mercury (Hg) - Answer sources: elemental (liquid): impurity in coal, vaporized and released into atmosp...

what term refers to the desire to conquer and exploit nature as quickly as possible? - Answer frontier attitude Which of the 5 disciplines of environmental health has the advantage of being able to conduct randomized controlled trials? - Answer Toxicology Who wrote about interrelationships among living organisms, including humans, and the natural environment? - Answer Rachel Carson Which highly publicized disaster spurred the creation of the Clean Water Act? - Answer ...

Which of the 5 disciplines of environmental health has the advantage of being able ton conduct randomized controlled trials? - Answer Toxicology Who wrote about interrelationship among living organisms, including humans, and the natural environment? - Answer Rachel Carson Environmental scientists are often asked to reach a consensus before hey fully understand the systems that they study. T or F? - Answer True Which of the following is NOT one of the five disciplines of e...

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