Background: The polyurethane foam (PUF) mattress-making workers are exposed to isocyanates which are known respiratory toxicants and cause effect on pulmonary volumes and flows. Thus, the study was with a rationale to measure the changes in pulmonary flow and volumes due to isocyanates among PUF mattress-making workers.
Materials And Methods: The study included 183 male workers from seven PUF making units of western and northern India. Using the interview technique as a tool for data collection, demographic and occupational details of the subjects were recorded on the predesigned and pretested pro forma. The mean of spirometric parameters was compared using one-way ANOVA and -test. The relation between spirometric parameters and anthropometric parameters was analyzed using the correlation coefficient.
Results: The spirometry showed that out of 183 participants, 165 (90.2%) subjects had normal spirometry, 13 (7.1%) had restrictive impairment, and 4 (2.2%) had obstructive impairment. All the mean spirometric values showed a declining trend with increasing age, while only forced expiratory volume in first second and forced vital capacity showed a declining trend with increasing duration of employment. The spirometric measurements had a negative correlation with age and positive correlation with height.
Conclusion: The spirometric values representing the airway flow were affected. The associated factors include age and duration of exposure.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8281860 | PMC |
| http://dx.doi.org/10.4103/ijcm.IJCM_909_20 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Enhancing EMI Shielding Efficiency of Polyurethane Foam by Incorporating MWCNT-Decorated Hollow Glass Microspheres.
ACS Omega
January 2025
School of Chemical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India.
This work explores the enhancement of EMI shielding efficiency of polyurethane (PU) foam by loading multiwall carbon nanotube (MWCNTs)-decorated hollow glass microspheres (HGMs). MWCNT was coated onto the HGM surface by a simple solution casting technique. The coated HGM particles were loaded in PU foams, resulting in an even dispersion of MWCNT in the foam struts, thereby forming an interconnected conductive network in the polymer matrix.
View Article and Find Full Text PDFIndustrial scale-up of flue gas bio-mitigation with chemolithotrophs in packed bed reactors: Exploring metabolite synthesis, mass transfer, and techno-economic analysis.
Chemosphere
January 2025
Department of Chemical Engineering, Birla Institute of Technology and Science (BITS), Pilani, 333031, Rajasthan, India. Electronic address:
Elevated emissions of flue gases deteriorate the quality of air, impacting both terrestrial and aquatic ecosystems through their contribution to acid rain and eutrophication. This study examines the bio-mitigation process in a packed bed reactor and its capacity to concurrently decrease the environmental consequences of industrial flue gases (CO, NO, and SO) and wastewater by employing mixed bacterial consortia. The highest biomass productivity achieved during the growth phase was 0.
View Article and Find Full Text PDFSynergistic Effect of Amino-Modified Co-MOF and APP on Improvement of the Fire Safety of the Rigid Polyurethane Foam.
ACS Omega
January 2025
School of Safety Science and Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, China.
The combustion of rigid polyurethane foam (RPUF) generates significant amounts of toxic and high-temperature smoke, which restricts its application. Here, an amino-modified Co-MOF (NH-Co-MOF) was synthesized and it was used in conjunction with ammonium polyphosphate (APP) to decrease the flammability of RPUF. We obtained the expected results: the fire safety of RPUF was greatly enhanced by the addition of NH-Co-MOF and APP.
View Article and Find Full Text PDFResearch Progress on Oil-Water Separation Materials Based on Polyurethane Modification.
ACS Omega
January 2025
Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, P. R. China.
Numerous oil-water mixtures produced through industrial production processes and daily activities pollute the ecological environment and pose risks to human health. The development of materials with high oil-water mixture separation efficiency can promote the recycling of oil and water resources and effectively prevent environmental pollution caused by their direct discharge. Most of the current oil-water separation materials consist of foam, aerogel, and other porous materials.
View Article and Find Full Text PDFThe Complex Valorization of Black Alder Bark Biomass in Compositions of Rigid Polyurethane Foam.
Materials (Basel)
December 2024
Latvian State Institute of Wood Chemistry, Dzerbenes Street 27, LV-1006 Riga, Latvia.
The use of black alder (BA) bark biomass in rigid polyurethane (PUR) foam compositions was the main task of investigation. Extractive compounds isolated from the bark through hot water extraction were used as precursors for bio-polyol synthesis via acid-free liquefaction with the polyether polyol Lupranol 3300 and through oxypropylation with propylene carbonate. The OH functionality and composition of the polyols were analyzed via wet chemistry and FTIR spectroscopy.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!