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REHS_
Mixed topic questions
| Question | Answer |
|---|---|
| What is an "EMETIC" Describe a few examples observed in Environmental Health. | An emetic is a chemical that induces vomitting. In E.H. emetics are used in Vector Control for rodent control. An example is Red Squill. |
| What does a USDA stamp on meat signify? | The meat products have been processed and inspected by the USDA (United States Department of Agriculture) and has passed food quality inspections. |
| Mobile home parks are monitored by what Federal agency? | Housing and Urban Development (HUD) |
| What are the specific requirements for an OXIDATION (stabilization) POND? | The space (or area), the time (up to 60 days) and the depth (3 to 5 feet). |
| For community-wide noise planning, what is the most important contributor to that noise? | Automobiles; routes and traffic |
| What types of laws protect government from liability? | Sovereign immunity |
| What is a GROUT SEAL? | This is the top space between a bored well and the ground. The seal is usually concrete. |
| What waste by-product is generated from sulfur oxide scrubbers? | Sulfuric acid. The sulfur oxide reacts with the water in the scrubber to form the acid. This is an important reaction in the atmosphere where the sulfur oxides react with the atmospheric moisture which forms ACID RAIN. |
| What types of laws do the Health Department enforce? | Administrative (delegated) laws. |
| You are asked to inspect and test for pH, conductivity, and heavy metals. What type of inspection are you performing? | A hazardous waste inspection for a metal plating facility. |
| In most cities, Nitrogen Oxides (NOX) is what source of pollution? | Automobile exhaust |
| Search and inspection warrants are similar except? | Search warrants are specific to a violation condition. Whereas warrants are to inspect all. |
| When municipal water treatment facilities add fluoride into their water, what is one of the most important factors in calculating the dose? | The temperature of the water is the most important factor. The colder the water, the more fluoride it absorbs. |
| Who developed The Model Food Code? | The Food Drug Administration (FDA) |
| What law establishes the Environmental Impact Statements? | The National Environmental Policy Act (NEPA) |
| What is the average holding time for septic tanks? | 24 hours |
| What is refered by the phrase "CRADLE TO GRAVE" | Producer a hazardous material is responsible for it from creation (CRADLE) to final disposal (GRAVE). |
| Murine typhus is common spread by? | Infected flea feces |
| With most anaphylactic shock victims, if prompt medical assistance is not administered, death can usually result from? | Asphyxiation |
| Does the level of TOTAL DISSOLVED SOLIDS in water affect chlorine disinfection? If it does, why? | NO |
| For hot water sanitizing what are the MINIMUM temperatures required in CURFFLaw and the Model Food Code? | CURRFLaw is 180 degrees F for 30 seconds. The Model Food Code is a minimum of 171 degrees F for 30 seconds. |
| Describe what types of chlorinate hydrocarbon pesticides are, and why they are banned from use in the USA? | DDT, Chlordane, Lindane are examples. They are very persistent in the environment (do not biodegrade easily or quickly) and affect reproductive cycles of many wildlife. |
| What is the purpose of a TRANSFER STATION? | Solid waste handling. When a landfill is too far, a transfer station collects the waste from the collection trucks, consolidates it and transports the wastes in larger vehicles to the landfill. |
| You receive an abestos complaint in your district from an old public school. What are some steps you will take to verify the problem and assess the public heath significance and take appropriate action? | Inspect the area in question with the parties involved. If the source is found, assess the condition of the asbestos. Is it intact? Can it be left alone? Is it friable? Would recommend hire a certified Industrial Hygienist to conduct air sampling. |
| Which Amendment to the U.S. Constitution requires that an inspection warrant is required after the initial inspection is refused? | 4th Amendment - Legal search and seizure. |
| Black soil indicative of? | Anaerobic decomposition- H2S gas should be present, bad PERC results (slow water absorption) |
| Soil with blue/green indicative of? | High Copper content, bad PERC results (slow water absorption) |
| Soil with red/orange indicates? | Iron and good water absorption |
| Brown soil indicates? | Considered the best for water absorption. |
| In an emergency shelter what are the space requirements? | Minimum floor space is 30 sq. ft/person for single-tier bed units; 20 sq ft/person for double-tier bed units. Bed units spaced minimum 3 feet apart, arranged alternating head-to-toe to reduce spread of communicable diseases. |
| In an emergency shelter what are the vent requirements? | A minimum of 40-50 cubic feet of air space/person |
| In an emergency shelter what are the light requirements? | Auxiliary light source, primarily from battery-powered flashlight (do not use lanterns, candles, or open flame until security of local gas supply lines is fully established) |
| In an emergency shelter, list some of the water requirements for each occupant. | Housing Center: 4-5 gallons/person/day (15-20 liters/person/day) Feeding Center: 5-8 gallons/person/day First Aid Station: 10-15 gallons/person/day |
| In an emergency shelter list some of the bathing and hand washing requirements for each occupant | One hand wash lavatory fixture with available clean water per 15 people (warm/hot if possible); provide soap and single-service towels. One shower per 15 people. Laundy facility |
| In an emergency shelter, what are the solid waste requirements for each occupant? | Provide 1-30 gallon non-combustible container with plastic containment bags and lids for every 10 people at minimum. Daily refuse removal is important to avoid generating odors, attracting vermin and contaminating stored food and water on the premises. |
| What is FEMA? and their role in a disaster? | FEMA= The Federal Emergency Management Agency directs various federal agencies that deal wiith disasters relating to public health and environmetal health such as EPA and Department of Health and Human Services. FEMA makes resources available. |
| What is the Command Incident System? | Incident Command System (ICS) is the statewide accepted on the scene emergency or disaster response plan instituted by Police Dept, Fire Dept, Search and Rescue Operations, Hazardous Materials Incidences. |
| How long can humans survive without water? | 6 days |
| What is the role of REHS during disaster? | To assure the availability of safe, potable water to the public Prevent waterborne diseases. |
| What is siderosis? | Siderosis: Pneumoconiosis due to inhalation of metal particles. Very small in size and could be found in gas form. |
| Black lung disease? | Coal miners respiratory disease ( a chronic condition). This condition is due to poor working conditions and the lack of proper respiratory equipment, the dust particle of the coal mine was respired by the coal miners. Areas in the lung black spots. |
| What is Silicosis? | Particulates of various sizes are inhaled into the lung, intentionally or accidentally. |
| Define Pandemic | This is a disease that exists throughout a wide area, such as the cities, countries, or the world. |
| Define Epidemic | This is the occurrences of a disease in a community or region of a group of illnesses, which is clearly more than the normal occurrence or expectancy of a disesase. |
| Define Endemic | This is a disease or an infectious agent within a geographical area that is expected to be around to some degree. |
| What is attack rate? | Attack rate is a cumulative incidence rate often fused for particular groups, observed for limited periods and under special circumstances, as in an epidemic. |
| Formula for attack rate: | (# new events / # person who could have experienced event) X 1000 |
| What is Death Rate? | The number of deaths in the population during the specified time period divided by the number of persons in the population during the specified time period. |
| What is the formula for death rate? | (# deaths in population / # persons in the population) |
| What is Mortality rate? Formula? | The deaths from all causes occurring in a population during a given period of time period (year) divided the average # of people in that population during that period (at mid year) then multiply by 1000 |
| Synergistic Effects? or Synergist? | Two or more chemical produce an effect different than either chemical produces alone. |
| Additive Effects? | Two chemicals produce an effect approximately twice that of either chemical alone. |
| Multiplicative Effect? | Two or more chemicals produce effect several times greater than that produced by either chemical alone. |
| Accelerator Effects? | One chemical enables or enhances the toxic effect of another chemical. Similar to chemical catalyst. |
| What is the average percent of water weight in the human body? | Water account for about 60-70 percent of the total body weight of an average person. About 70% |
| What is a cross connection? | Is any connection/arrangement physical or otherwise between potable water supply system and any plumbing fixture through which it may be possible for non-potable contaminated water to enter any part of the potable water system. |
| Backflow | The flow of contaminated water into a potable water supply caused by back pressure. |
| Back siphonage | A form of backflow when the pressure in the potable water supply drops below the pressure in the flow of contaminated water. |
| Back Pressure | Where contamination is forced into a potable water system through a connection that has higher pressure than the water system. |
| Air Gap | The unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or faucet conveying water or waste to a tank, or plumbing fixture such as a drain. |
| Double check valve assembly | is used to low hazard situations. This is when the potential backflow source may be polluted but not contaminated. It can receive water from multi-directional source where foreign matter may be contained in the water which may cause a nuisance but not haz |
| Reduced Pressure Backflow Prevention Device | The pressure type vacuum breaker is used as a protection connection to all non-potable water supplies where the line is not subject to back pressure. These units are under continuous pressure and must be installed above the usage point. |
| What does "pesticide efficacy" mean? | Pesticide efficacy means a pesticide capacity for producing a desired result or effect. |
| What is "abiotic" condition? | Abiotic condition is characterized by the absence of life or living organisms. The abiotic factors of the environment include light, temperature, and atmospheric gases. |
| What is Integrated Pest Management (IPM)? | It is an approach that uses non-chemical means such as controlling climate, food resources, and building entry points to prevent and manage pest infestation. |
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