Exposure Assessment Case Study(50 points)Directions: After reading the Centers for Disease Control and Prevention case study, answer the following questions.Case Study: “Cross-sectional Exposure Assessment of Environmental Contaminants in Churchill County, Nevada” by the Centers for Disease Control and Prevention.t http://www.cdc.gov/nceh/clusters/fallon/factsheet.pdf1) Identify the agent:_____________________________________________________2) What type of agent is described?|_| biological|_| chemical3) Source:|_| anthropogenic |_| non-anthropogenic|_| area |_| point|_| stationary |_| mobile|_| indoor |_| outdoor4) Transport/carrier medium:|_| air|_| water|_| soil|_| dust|_| food product item5) Exposure pathways:|_| eating contaminated food|_| breathing contaminated air|_| touching a contaminated surface|_| drinking contaminated water6) Exposure concentration:|_| mg/kg (food) |_| mg/litre (water)|_| ug/m3 (air) |_| ug/cm3 (contaminated surfaces)|_| % by weight |_| fibres/m3 (air)7) Exposure route:|_| inhalation |_| dermal contact|_| ingestion |_| multiple routes8) Exposure frequency:|_| continuous |_| intermittent|_| cyclic |_| random|_| rare9) Exposure duration:|_| seconds |_| minutes|_| hours |_| days|_| weeks |_| months|_| years |_| lifetime10) Exposure setting:|_| occupational |_| non-occupational|_| residential |_| non-residential|_| indoors |_| outdoors11) Exposed population:|_| general population|_| population subgroups|_| individuals12) Geographic scope:|_| site |_| specific|_| local |_| regional|_| national |_| international|_| global© 2014. Grand Canyon University. All Rights Reserved.