Assessment of awareness and comprehension of chemical hazard symbols among chemistry students

Mehrifar, Younes; Eskandarnia, A; Pirami, Hamideh; Mardanparvar, Hossein

doi:10.18869/acadpub.johe.5.1.20

Cited by 2 publications

(4 citation statements)

References 10 publications

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“…For example, in a study conducted with the participation of 175 chemistry students, the results showed that most (81%) had a high level of familiarity and perception of the signs of laboratory chemicals. In this research, the students who did not have a correct perception of the signs pointed to reasons such as not paying attention to the labels of chemical substances and problems remembering and understanding more of these signs [ 7 ].…”

Section: Discussionmentioning

confidence: 99%

“…It is estimated that each cleaning worker uses about 110 kg of hazardous chemicals per year, depending on the nature of his job [ 5 ]. Many of these hazardous chemicals have corrosiveness, irritation, flammability, and oxidation properties [ 5 – 7 ]. They can be considered to be the cause of some respiratory (asthma, vaginitis), skin (dermatitis), fertility, and cardiovascular disorders [ 5 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

“…It is worth mentioning that the GHS has been proposed as an effective tool to increase users' perception of the nature of chemicals and the extent of chemical hazards. The goal of creating GHS is to provide an appropriate classification for chemicals according to their potential hazards and to convey essential information about these chemicals to users through standardized pictograms, signal words, hazard statements, and precautionary statements in labels and safety data sheets [ 7 , 17 ]. Various criteria have been examined for the comprehensibility of chemical hazard pictograms.…”

Section: Introductionmentioning

confidence: 99%

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Safety culture and perception of warning signs of chemical hazards among hospital cleaning workers: a cross-sectional study

et al. 2023

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Background Due to the type of activities and the long-term exposure to chemicals, hospital cleaning workers require the necessary knowledge about the chemicals used and proper safety culture. This study aimed to evaluate the safety culture and perception of hospital cleaning workers' warning signs of chemical hazards. Methods This cross-sectional study was conducted in 2022 with the participation of 68 cleaning workers with the mean age ± (SD) and work experience ± (SD) of 36.19 ± (7.619) and 9.21 ± (5.462), respectively, in four selected Tehran hospitals in Iran. After ensuring the confidentiality of the received information and completing the demographic information checklist, each participant completed Global Harmonization System (GHS) sign perception and the safety culture questionnaires in this survey. Data were analyzed using regression and Pearson correlation tests. Results This study showed that the participant's correct perception in nine cases (81.8%) of presented GHS signs was lower than the ANSI Z535.3 standard. Among the investigated signs, "Flammable substances" and "Harmful to the environment" signs had the highest, and "Skin irritant" signs had the lowest correct perception. In addition, it was found that 55 people (80.9%) had an overall positive attitude toward the safety culture. The levels of "Work environment" (83.8%) and "Information exchange" (76.5%) had the highest and lowest positive scores for safety culture. Furthermore, there is a direct and significant relationship between the overall score of safety culture and the overall perception of the symptoms of GHS (CC = 0.313, P = 0.009). Conclusion According to the obtained results, it is recommended to take the necessary measures to increase the employees' perception of the signs of chemical substances and improve their safety culture.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Safety culture and perception of warning signs of chemical hazards among hospital cleaning workers: a cross-sectional study

et al. 2023

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“…Mn is known to occur at high levels in soils but the levels observed for soils from the MFWs in this study could be due to the fact that Mn contributes the highest percentage of the composition of steel alloys (11-14.5%) that are used in welding and fabrication [49]. Exposure to Mn, an essential component of welding electrodes and some steels, has been implicated in neurotoxicity and Parkinsonism of welders [50,51].…”

Section: Concentration and Inter-elemental Corrlation Of The Ptes In ...mentioning

confidence: 94%

Exposure and Health Risks Posed by Potentially Toxic Elements in Soils of Metal Fabrication Workshops in Mbarara City, Uganda

Nuwamanya,

Byamugisha,

Nakiguli

et al. 2024

JoX

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Metal fabrication workshops (MFWs) are common businesses in Ugandan cities, and especially those producing metallic security gates, window and door frames (burglar-proof), and balcony and staircase rails. The objective of this study was to comparatively assess the pollution levels and potential health risks of manganese (Mn), chromium (Cr), cadmium (Cd), lead (Pd) and nickel (Ni) in pooled surface soil samples from four 5-, 7-, 8-, and 10-year-old MFWs (n = 28) and a control site (n = 8) in Mbarara City, Uganda. The concentration of the potentially toxic elements (PTEs) was determined using inductively coupled plasma–optical emission spectrometry. Contamination, ecological, and human health risk assessment indices and models were used to identify any risks that the PTEs could pose to the pristine environment and humans. Our results showed that PTE pollution of soils is occuring in the MFWs than at the control site. The mean concentrations of the PTEs (mg kg−1) in the samples were: Mn (2012.75 ± 0.23–3377.14 ± 0.31), Cr (237.55 ± 0.29–424.93 ± 0.31), Cd (0.73 ± 0.13–1.29 ± 0.02), Pb (107.80 ± 0.23–262.01 ± 0.19), and Ni (74.85 ± 0.25–211.37 ± 0.14). These results indicate that the PTEs could plausibly derive from the fabrication activities in these workshops, which is supported by the high values of contamination factors, index of geoaccumulation, and the overall increase in pollution load indices with the number of years of operation of the MFWs. Human health risk assessment showed that there are non-carcinogenic health risks that could be experienced by children who ingest PTEs in the soils from the 7-, 8- and 10-year-old MFWs. The incremental life cancer risk assessment suggested that there are potential cancerous health effects of Cd and Ni that could be experienced in children (who ingest soils from all the four MFWs) and adults (ingesting soils from the 8- and 10-year-old MFWs). This study underscores the need to implement regulatory guidelines on the operation and location of MFWs in Uganda. Further research should be undertaken to investigate the emission of the PTEs during welding operations in the MFWs.

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Assessment of awareness and comprehension of chemical hazard symbols among chemistry students

Abstract: Background: Laboratory activities must be planned and organized carefully because of the danger they may cause. The purpose of this study was to assess students' awareness and comprehension of chemical hazard warning signs at the

Cited by 2 publications

References 10 publications

Safety culture and perception of warning signs of chemical hazards among hospital cleaning workers: a cross-sectional study

Safety culture and perception of warning signs of chemical hazards among hospital cleaning workers: a cross-sectional study

Exposure and Health Risks Posed by Potentially Toxic Elements in Soils of Metal Fabrication Workshops in Mbarara City, Uganda

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