A particular gas welding process in a confined space is suspected of producing dangerous concentrations of carbon monoxide, carb
on dioxide, iron oxide particulate, and manganese fumes. Atmospheric sampling produces the following exposure data:
Period CO (ppm) CO2 (ppm) Iron Oxide Manganese
(mg/m3) (mg/m3)
8:00 am - 10:00am 10 1000 1 1
10:00am - 12:00pm 20 1000 4 1
12:00pm - 1:00pm 25 1000 2 0
1:00pm- 4:00pm 30 1000 3 1
Do the calculations to determine whether the combined exposure represents an OSHA violation.
Period CO (ppm) CO2 (ppm) Iron Oxide Manganese
(mg/m3) (mg/m3)
8:00 am - 10:00am 10 1000 1 1
10:00am - 12:00pm 20 1000 4 1
12:00pm - 1:00pm 25 1000 2 0
1:00pm- 4:00pm 30 1000 3 1
Do the calculations to determine whether the combined exposure represents an OSHA violation.
1 answer:
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Answer:
d. $2,591.85
Explanation:
To solve we can use the present value formula defined by
where PV is present value, FV is future value, t is time and r is the interest rate , we can replace the values given in the question. Where 4000 is the future value, the time is t=6 years, and the interest rate is r=0.075, so we get