Answer

Advanced Industrial Hygiene Unit III

Manganese Fume

I will use a direct reading instruments that relies on an electrochemical sensor for personal sampling. Additionally, I will rely on a flow rate of 0.075 l/min. In calibrating the sampling train, I will use a rotameter that will measure the flow rate of the manganese fumes. The use of this flow rate will lead to accurate and reliable measurements (Hulo et al., 2014). In calculating the minimum sample time, I would use the formula: minimum sample time = minimum sample volume/flow rate. In this case, the minimum sample time would be: 300Liters/0.075 l /min = 400 minutes or approximately 7 hours. I will collect personal sample because the results of the personal sample will accurately provide the amount of manganese fumes that a person is most likely to inhale. No components listed in the method might interfere with the sample.  The sample should be stored in a closed original container and in a dry place.

Toluene (Paint)

            The sampling media that I will use in this second element is adsorbent tube samples that can be drawn from the workplace through a coconut charcoal. The flow rate that I will rely on is 50ml/min. The sampling train will be calibrated by using Toluene calibration gas. Specifically, this calibration is used because of its ability to dissolve any paint and paint thinners (Esmaelnejad et al., 2015). The formula that I will use for the calculation of the minimum sampling time is: minimum sample time= minimum sample volume/flow rate. This translates to 240min (minimum sampling volume)/50ml/min (flow rate)= 4.8 minutes.  In the present case, I will use area sample because of the need to detect the concentration of Toluene in the entire workplace. Some of the compounds that may interfere with my sample include xylene. The Toluene sample should be stored away from heat/ignition sources and in a tightly closed container.

Metal Working Fluids

In sampling the metalworking fluids, the sample that I will collect is the Thoracic particulate, which consists of a fraction of inhaled particles. However, the sampling media that is best suited is ternary Solvent (Brinksmeier et al., 2015). The flowrate that I will rely on in the present case will 0.5 mg/m3. In calibrating the sampling train, I will use National Institute of Standards and Technology Class S-1.1 weights. The formula that I will use for the calculation of the minimum sampling time is : minimum sample time= minimum sample volume/flow rate. Thus, 1000l/0.5 mg/m3= 2,000 minutes or 33 hours. A sampling personal method will be used where the tools used to collect the samples from individuals. Although the toxic substance does not have any other component that could interfere with its properties, it should be stored under refrigeration and analyzed within 32 weeks after collection.

Noise Exposures

            In the evaluation of noise levels in the facility, I would use L10, which assume sthat the noise levels exceeds 10% of the time. The calibration I would use for the sampling train is a dosimeter which will measure radiation. Due to the fact that the radiations will be all around the rook, personal sampling will be a vital method for the collection of the noise level sample. The sampling media will be placed under the helmet or the chin. The areas in the facility where I would conduct the evaluation include areas adjacent to the major source of the noise (such as grinding or welding areas). The noise sample would not require any special mechanism for storage.