unit 3

Question 1Perform the following calculation for air concentration. Sulfuric Acid: 2.5 mg/m3 = ____ ppm2.5 pointsQuestion 2Perform the following calculation for air concentration. Formaldehyde: 4.0 mg/m3 = ____ ppm2.5 pointsQuestion 3Perform the following calculation for air concentration. Benzene: 3.0 ppm = ____ mg/m32.5 pointsQuestion 4Perform the following calculation for air concentration. Acetone: 42.0 ppm = ____ mg/m32.5 pointsQuestion 5Discuss  the similarities and differences that exist between the three basic  types of occupational exposure limits (OELs). Describe how each type of  OEL is used to control occupational exposures, and provide at least one  specific chemical for which each type of OEL has been established.Your answer must be a minimum of 200 words in length.30 pointsQuestion 6Define  the lowest observed adverse effect level (LOAEL) and the no observed  adverse effect level (NOAEL), and describe how they relate to the point  of departure (POD). Describe how each of these are used to derive an  OEL.Your answer must be a minimum of 200 words in length.30 pointsQuestion 7Describe  how hazard notations are used to derive OELs, including the additional  hazard notations included by the Occupational Safety and Health  Administration (OSHA). How would these notations be used in industrial  hygiene practice?Your answer must be a minimum of 200 words in length.

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