Designing and Installing a local Exhaust Ventilation to Exposure Control for Soldering Fumes in an Electronic Components Manufacture Industry in Kerman (2018)

Authors
Mokhles Bateni 1
zahed Ahmadi 1
Hossein ElahiShirvan 2
1 Department of Occupational health, Students’ Research Committee, Kerman University of Medical Sciences, Kerman, Iran
2 kerman university of medical science
Abstract
Introduction

Soldering is one of the actions in the electronics industry processes that create disturbances in the oral, nasal, and respiratory tract. In worldwide, many people are working in this occupation. The most common to reduce employees’ exposure to chemical agents in workplaces is local exhaust ventilation. This study aims to design and install local ventilation to control exposure to soldering fumes in the electronic industry in Kerman.

Materials and Methods

A present Experimental study is a description- analytical that carried out in three steps in an assembly line for electronic components in Kerman in the summer of 2018: 1- collecting samples of contaminants produced during soldering 2- designing, manufacturing and installing a local exhaust ventilation 3- collecting samples of contaminants produced during soldering after designing exhaust ventilation. Lead and tin collecting samples were done based on NIOSH 7105 and NIOSH 5504 respectively.

Results

The results showed that employees had more exposure to the tin and lead contaminants before designing and installing local exhaust ventilation that was above the allowed rate. The results of designing exhaust ventilation of 20.5 m3/min showed that tin and lead fumes rates could reach below the allowed rates in all workplaces.

Conclusion

The investigation and comparison of the allowed rates of exposure to soldering fumes and the density rates in workplaces before and after designing the local exhaust ventilation proved the high efficiency of controlling methods in the assembly line of electronic components.
Keywords
fumes
local exhaust ventilation
Occupational Exposure
electronic components
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Journal of Netshabur University of Medical Sciences
Volume 8, Issue 1 - Serial Number 26
Winter 2020
Pages 103-114