Environmental & Analytical Toxicology

Hossein Kakooei

Publications

• Research Article
  Identification and Counting of Asbestos and Non-Asbestos Fibers in an Automobile Brake Manufacturing Industry
  Author(s): Hossein Marioryad, Hossein Kakooei and Mahdieh BakhshandehHossein Marioryad, Hossein Kakooei and Mahdieh Bakhshandeh
  
  This study was performed to identify and count both asbestos and non-asbestos fibers during brake manufacture in Iran. A total of 56 respiratory air samples of personnel were measured by phase-contrast microscopy (PCM) and scanning electron microscopy (SEM). The fiber type and its chemical composition were also evaluated by SEM and energy-dispersive X-ray analysis (EDX). Monitoring of total fiber levels demonstrated that its ranges are from 0.23 to 1.50 PCM f/ml. The geometric mean and standard deviation of the airborne asbestos and non-asbestos fiber concentrations were 0.22(1.61) and 0.32(1.61) SEM f/ml respectively. The observed asbestos fiber concentrations in many processes were higher than the threshold limit value (TLV) which is proposed by American Conference of Governmental Industrial Hygienists (ACGIH), as equal as 0.1 f/ml. Based on these findings, the geometric means of th.. Read More»
  DOI: 10.4172/2161-0525.1000139

  Abstract PDF