study guide

Exam 2 Study Guide The exam will have questions of the following types: multiple choice, enumeration, true or false, problem solving, short answers. Please review all lecture materials, specially the topics I mention every “Last Session Review”. Pay extra attention on the following: Sampling for airborne contaminants

 Differentiate different types of sampling approaches: area, personal, direct-reading, integrated, active, passive, grab

 Sampling media/ instruments: airborne contaminants collected/ detected o Filter: contaminants collected

 Materials used in dust sampling

 Mechanisms of particle collection

 Problems with filter collection

 Passive sampling: facts

 Direct-reading methods/instruments: types, limitations

 Breakthrough

 Lab techniques: main use and principle of operation; gravimetric analysis

 Blanks: field, lab

 Sampling strategies: breathing zone, HEGs, factors affecting actual absorbed dose

 Sampling and analytical error (SAE) Indoor air quality

 Health effects of poor IAQ (due to chemical, biological, etc.)

 Factors affecting IAQ

 IAQ instruments: function

 Assessment of HVAC effectiveness o Use of CO2 in calculating volume of make-up air

 Factors affecting radon concentration Control of hazards

 Hierarchy of control strategies: specific examples for a workplace scenario

 LEV vs dilution

 LEV components

 Hoods: entry loss, flange

 Ducts: friction loss, pitot traverse, velocity pressure  duct velocity

 Air cleaners: principle of operation

 Dilution ventilation: required dilution air volume, mixing factor Occupational skin exposure

 Chrome holes

 Cutaneous anthrax

 Phototoxic and photoallergic reactions Calculations:

 Pump calibration

 Conversion of concentration from ppm to mg/m3 and vice versa

 Volumetric flow rate (Q) given velocity (V) and area opening (A)

 Volume of outside air supplied based on indoor and outdoor CO2 concentrations

 Duct velocity given velocity pressure from pitot traverse measurements

 Required flow rate of dilution air Do not forget to bring your scientific calculators during the exam. The use of cellphones will not be allowed. Good luck!