Generally, handmade paper industries are considered as eco-friendly industries. These industries are known to use vegetable dyes which are thought to be safe and non-toxic. However, cardboard industries are considered as pollution-causing industries. The present study focuses on the genotoxic assessment of handmade paper and cardboard industry's effluent by Ames test using Salmonella typhimurium TA 98 and TA 100 strains. On mutagenicity analysis, effluents of both industries were found to be mutagenic with either one strain of Salmonella typhimurium or with both. Besides this, no significant difference was observed in effluent of both small-scale and large-scale handmade paper industries. Moreover, mutagenic compounds reach the nearby water body i.e. Amani Shah Drainage through connecting drain. Discharging of untreated effluent not only deteriorates the water quality but also reaches the food chain when used for irrigating nearby fields. Workers of these industries may suffer various health hazards when they are exposed to mutagenic effluent without having any information about it. Hence, discharging of effluents should thus be restricted or the workers while handling mutagenic substances should at least take proper precautions.
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http://dx.doi.org/10.1177/0748233710391992 | DOI Listing |
Molecules
December 2024
State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China.
Handmade papers, as carriers of paper-based cultural relics, have played a crucial role in the development of human culture, knowledge, and civilization. Understanding the intricate relationship between the structural properties and degradation mechanisms of handmade papers is essential for the conservation of historical documents. In this work, an artificial dry-heat-accelerated aging method was used to investigate the interplay among the mechanical properties of paper, the degree of polymerization (DP) of cellulose, the chemical composition, the hydrogen bond strength, the crystallinity, and the degree of hornification for paper fibers.
View Article and Find Full Text PDFJ Endovasc Ther
October 2024
Department of Vascular and Endovascular Surgery, Cardiovascular Institute Hospital Clínic, University of Barcelona, Barcelona, Spain.
Surg Case Rep
October 2024
Department of Neonatology, Yamanashi Prefectural Central Hospital, Kofu, Japan.
JACC Case Rep
September 2024
Department of Cardiovascular Medicine, Saga University, Saga, Japan.
RSC Adv
August 2024
Animal Science Department, Agriculture Faculty, Isparta University of Applied Sciences Isparta 32260 Turkey.
A simple preparation of a paper strip test with a smartphone-based instrument for detecting dissolved mercury is still in development. This study aims to develop a smartphone-based colorimetric paper strip test using chitosan-stabilized silver nanoparticles for detecting dissolved mercury. The method demonstrated high sensitivity and selectivity for Hg ions, with detection limits comparable to UV-vis spectrophotometry.
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