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Enumeration of Asbestos fibers

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Arash Pourhamdollah

This document provides calculations to determine the fiber concentration in a work environment. It first calculates the fiber concentration to be 0.48 fibers per cubic centimeter. It then lists the OSHA and NIOSH regulatory limits for fiber concentration as 0.1 fibers per cubic centimeter and notes that exceeding these limits can increase the risk of asbestosis and mesothelioma.

Enumeration of Asbestos fibers

1
= =
128.82
0.0094
= 13704
100
13704
=
80
𝑥
𝑥 =
80 × 13704
100
= 10963.2
𝑉 = 𝑄 × 𝑡 = 1.5 × 15 = 22.5 𝑙𝑖𝑡 = 22500 𝑚𝑙
=
10963.2
22500
= 0.48
𝑓𝑖𝑏𝑟
𝑐𝑐

2
𝑂𝑆𝐻𝐴 𝑇𝐿𝑉 = 0.1
𝑓𝑖𝑏𝑟
𝑐𝑐
𝑁𝐼𝑂𝑆𝐻 𝑇𝐿𝑉 = 0.1
𝑓𝑖𝑏𝑟
𝑐𝑐
1 Asbestosis
2 Mesothelioma

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Enumeration of Asbestos fibers

2. 1 = = 128.82 0.0094 = 13704 100 13704 = 80 𝑥 𝑥 = 80 × 13704 100 = 10963.2 𝑉 = 𝑄 × 𝑡 = 1.5 × 15 = 22.5 𝑙𝑖𝑡 = 22500 𝑚𝑙 = 10963.2 22500 = 0.48 𝑓𝑖𝑏𝑟 𝑐𝑐

3. 2 𝑂𝑆𝐻𝐴 𝑇𝐿𝑉 = 0.1 𝑓𝑖𝑏𝑟 𝑐𝑐 𝑁𝐼𝑂𝑆𝐻 𝑇𝐿𝑉 = 0.1 𝑓𝑖𝑏𝑟 𝑐𝑐 1 Asbestosis 2 Mesothelioma