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CARBON BLACK EXPOSURE AND CARDIOPULMONARY EFFECTS AMONG EGYPTIAN WORKERS

Article

Last updated: 22 Jan 2023

Subjects

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Tags

Occupational diseases

Abstract

Introduction: Growing evidence suggests that occupational exposure to carbon black may be a risk factor to the cardiovascular and respiratory systems. Objectives: To spotlight cardiopulmonary changes among workers exposed to carbon black, to find out different risk factors which may increase the health hazards and to determine the most effective intervention strategy to limit health hazards of carbon black exposure. Materials and Methods: A cross sectional study was done in carbon black factory in Borg Elarab , Alexandria. The studied group was subjected to a questionnaire including detailed occupational, present and past histories. General examination was done, blood pressure was measured in erect and supine positions and average was taken. Mean arterial blood pressure was calculated. Investigations were done including: CBC, pulmonary function testing (FVC and FEV1) and Plain chest x- ray. Results: the current study detected that DBP was higher among highly exposed group ( 80.7±9) compared to moderately exposed (77.6±9) and unexposed (76.5±8) (statistically significant ). Mean arterial blood pressure was higher among highly exposed (95±8.4) and moderately exposed (92.3±9) group compared to unexposed group (84.5±8.6) and also highly exposed departments compared to moderately exposed with significant difference . As regard FEV1 was higher among unexposed group (3.8±0.7) compared to moderately exposed (3.5±0.8) and highly exposed (3.4±0.9) with statistically significant difference (p < 0.05). Also FVC was higher among unexposed group (4.8±0.7) compared to moderately exposed group (4.6±0.9) which was slightly higher than highly exposed group (4.3±0.8) with statistically significant difference. Both % of FEV1/FVC and 
FVC/PVC were higher among unexposed group (84.6±7.6) and (89±7.6) compared to heavily exposed (77.6±9) and (85.3±9) and moderately exposed (80±5) and (87±7) respectively with statistically significant difference. As regard the effect of work duration and smoking index; statistically significant inverse correlation was detected between all pulmonary function tests (PFT) versus duration of exposure among highly exposed group. Among moderately exposed group there is a statistically significant inverse correlation between FVC, FEV1 and FVC/PVC but no significant correlation could be detected versus FEV1/FVC. Conclusion: Carbon black exposure plays an important role in deterioration of pulmonary functions and elevation of diastolic and mean arterial blood pressure. Smoking plays a synergistic effect together with carbon black in induction of pulmonary and blood pressure changes.
 

DOI

10.21608/ejom.2014.787

Keywords

carbon black, Blood pressure risk factors, Pulmonary function tests, Smoking index

Authors

First Name

EL Okda

Last Name

EL

MiddleName

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Affiliation

Department of Community, Environmental and Occupational Medicine

Email

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City

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Orcid

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First Name

Maraghy

Last Name

A

MiddleName

-

Affiliation

Chest Department, Ain Shams University, Cairo, Egypt

Email

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City

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Orcid

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Volume

38

Article Issue

1

Related Issue

194

Issue Date

2014-01-01

Receive Date

2016-11-10

Publish Date

2014-01-01

Page Start

43

Page End

62

Print ISSN

1110-1881

Online ISSN

2357-058X

Link

https://ejom.journals.ekb.eg/article_787.html

Detail API

https://ejom.journals.ekb.eg/service?article_code=787

Order

3

Type

Study paper

Type Code

126

Publication Type

Journal

Publication Title

Egyptian Journal of Occupational Medicine

Publication Link

https://ejom.journals.ekb.eg/

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Details

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Article

Created At

22 Jan 2023