Calculate the exposure concentration in mg/m3 for the aerosols

Calculate the exposure concentration in mg/m3 for the aerosols

This is an assignment that focuses on the calculate the exposure concentration in mg/m3 for the aerosols. The paper also is from the IH Unit IV.

Calculate the exposure concentration in mg/m3 for the aerosols

IH Unit IV
Instructions

The sampling results for the chemical hazards you tested for Acme Automotive Parts (AAP) are listed in the following table. The volumes that are listed are what you provided to the laboratory.

Hazard                               Analytical Result                              Volume (Time)
Manganese Fume             5 µg                                                   30 L (15-minute)
Copper Fume                    140 µg                                               960 L (8-hour)
Lead Fume                         40 µg                                                  960 L (8-hour)
1,2,4 trimethylbenzene  5 µg                                                   48 L (8-hour)
Toluene                              125 µg                                               48 L (8-hour)
Xylene                                 20 µg                                                  48 L (8-hour)
Metal Working Fluids     500 µg                                               720 L (8-hour)

Part I: For each of the chemical hazards complete the following:
Firstly, calculate the exposure concentration in mg/m3 for the aerosols.
Secondly, calculate the exposure in parts per million (ppm) for the vapors.
Thirdly, discuss where you think errors might have been introduced into the results.

Part II: The results for the noise sampling in the following table were a record from your noise dosimeters. All the samples were collected for the full shift using 90 decibels on the A scale (dBA) as the criterion level and a 5 decibels (dB) exchange rate.

Location                                            Shift Length                                                     Result
Shipping/Receiving                        8 hours                                                             78.3 dBA (Lavg)
Hydraulic Press                               12 hours                                                           93.0 dBA (Lavg)
Metal Working Line                       12 hours                                                           84 dBA (Lavg)
Robotic Welding                             12 hours                                                           80.5 dBA (Lavg)
Hand Welding                                  12 hours                                                           81.3 dBA (Lavg)
Paint Booth                                      12 hours                                                           79.5 dBA (Lavg)
QA/QC Laboratory                          8 hours                                                             70.0 dBA (Lavg)
Final Inspection                               8 hours                                                             73.5 dBA (Lavg)

Answer the following for each of the locations listed above:
Firstly, convert the results from dBA to percent.

Make sure you show all your work for calculations.

Lastly, your assignment must be a minimum of two pages in length, not including title or reference pages. Your assignment must also use at least two references. Additionally, one must be from the CSU Online Library; the other may be your textbook. All references and in-text citations must be in format according to APA standards.