Environmental Public Health Journal 2014 | BCIT Institutional Repository

Environmental Public Health Journal 2014

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Survey of the general public to determine perceptions and precautions taken when choosing personal service establishments
Objective: Personal service establishments (PSEs) include tattoo parlors, piercing shops, and beauty salons. Many of the services provided have potential to spread diseases due to the invasive nature and possibility of cross contamination if sanitation procedures are not followed. Potential infections such as nontuberculosis mycobacterium, staphylococcus aureus and blood borne infections such as Hepatitis and HIV are possible. There is concern among Environmental Health Officers (EHOs), and professionals in the industry regarding the lack of regulations and training of employees within the industry. This study investigated the criteria and safety measures the public takes when determining which personal service establishment they receive treatments from. Methods: A questionnaire was administered online through social media and Google Docs. Inferential statistical analyses determined if there were associations between certain demographic information and the responses given from participants. Results: There were six associations that were found when comparing demographic groups (age, gender and education) with the survey questions. A p value of 0.021008 was found in the association between age and perceived level of regulation of the industry, a p value of 0.014407 was found in the association between education and asking about sanitation procedures before an appointment, and a p value of 0.008668 was found in the association of education and if participant asks for references. In addition, p values of 0.028151 and 0.011739 with associations of gender and education, respectively, and the participants perceived ability to recognize bad practices during a procedure. Finally, a p value of 0.029766 was found in the association of gender and participants interest in additional information about how to choose an establishment. Conclusions: There were six hypotheses that resulted in statistically significant associations between a demographic and the survey question. Over 30 year olds chose PSEs were minimally regulated, while higher education groups were more likely to ask about sanitation and for references before a procedure. Females and people with some post secondary education felt they were more able to recognize bad practices during a procedure. Finally, females were most interested in additional information about PSEs., Project submitted in partial fulfillment of the requirement for the degree of Bachelor of Technology in Environmental Health, British Columbia Institute of Technology, 2014., Peer-reviewed article, Published., Peer reviewed, Personal Service Establishments, PSEs, PSE Guidelines, Staphylococcus aureus, Nontuberculosis mycobacterium, Hepatitis, HIV, BeautySafe
Testing for presence of radioactivity in BC Pacific Ocean’s seafood supply
Abstract: Due to the Fukushima Daiichi Nuclear power plant incident in March 2011, large quantities of contaminated water were released to the Pacific Ocean in Japan. The severity of contamination on the marine environment is unclear, therefore, the public is concerned with the possible internal radiation exposure from ingesting contaminated seafood products caught in the Pacific Ocean. This study was aimed to investigate the presence or absence of gamma radioactivity in commonly consumed seafood products from B.C. In total, ten different species of fish and three different species of shellfish were selected for analysis. For each species of fish, two samples were collected and each sample was from a different local seafood market. For each species of shellfish, ten samples were collected from three different sources. Using the portable GR-135 Plus gamma ray spectrometer, the samples were tested and analyzed for the presence of Fukushima radionuclides, particularly Cesium-137 (Cs-137) and Cesium- 134 (Cs-134).Based on the analyzed fish and shellfish, no gamma radiation was detected. The detector did not identify any gamma radiation over the normal background readings., Project submitted in partial fulfillment of the requirement for the degree of Bachelor of Technology in Environmental Health, British Columbia Institute of Technology, 2014. “The views expressed in this paper are those of author and do not necessarily reflect their official policy, position or views of BCIT, the Environmental Health Program or its faculty.”, Published., Peer reviewed, Fish, Shellfish, Fukushima, Radiation, Gamma, Pacific Ocean, Cesium-137, Cesium-134
UV transmittance in market place sunglasses and their adherence to established standards.
Background: Sunglasses are used to shade and protect the public’s eyes every day. However some improperly made sunglasses offer inadequate UV protection that shade the eyes and dilate pupils, while letting in a high dose of UV radiation into sensitive ocular tissues. This UV exposure can have acute and chronic effects such as temporary blindness and clouding of the eye. This study investigated the prevalence of sunglasses with poor UV protection and examined any relationships or associations between such sunglasses and their retail price or declared protective standards. Methods: 35 unused sunglasses available in the Metro Vancouver area were tested using an Agilent 8453 UV-visible Spectroscopy System for UV transmittance rates in the UVA, UVB, and UVC wavelengths. Results were statistically analyzed for any potential relationships or associations between price, price categories, total number of wavelengths failed, transmittance test results, decal presence, and types of decals present. Results: Sample sunglasses were distributed to be 51% budget sunglasses, 23% standard sunglasses, and 26% premium sunglasses. Of these 35 sunglasses, 11% failed the 4% permitted transmittance test, and 89% of the sunglasses had some form of UV protection claim adhered or printed on the product. Statistically significant associations, using Chi-squared analysis, could not be found between transmittance test results and price category, UV protection claims, or the type of UV protection claim; p-values were found to be 0.43643, 0.44525, and 0.58402, respectively. A statistically significant relationship, using linear regression, could not be found between price and total wavelengths failed; p-value was found to be 0.2272 with a slope of -0.1334 Conclusion: Though no statistically significant relationships or associations could not be found, the study did find sunglasses that offered inadequate UV protection, leading to the conclusion that there are sunglasses in the Metro Vancouver market that are inappropriate for standard UV protection., Project submitted in partial fulfillment of the requirement for the degree of Bachelor of Technology in Environmental Health, British Columbia Institute of Technology, 2014., Published., Peer reviewed, UV protection, Sunglasses, Sunglass, UVR, UV, Photoprotection, Vancouver, Ocular health, Vision
Wi-Fi radiation levels at BCIT
Objective: To determine if there are any difference in the amount of EMF Wi-Fi radiation being emitted between three locations at the BCIT campus in Burnaby, BC. Background: Wi-Fi radiation is widely being used in today’s society for the quick access it gives us to connect to the internet. Some cities in the United Kingdom have installed many Wi-Fi devices throughout the public domain so people can be connected all the time. Furthermore, most schools are being outfitted with routers to provide internet access for their students. But, as this paper will show, new research is forcing a shift in the thinking of some policy makers in choosing to install these connections in the public domain. Method: To measure the amount of non-ionizing EMF radiation being absorbed by the body, an Extech RF meter was used. This instrument provides instantaneous and average readings for a particular area one measures. During the experiment, the RF meter was held stationary at one location for approximately 10-15 seconds in order to stabilize the reading. The average value was taken as the instantaneous reading was fluctuating. This process was done in 3 buildings at BCIT and in order to increase the reliability and validity, 30 data points were collected from each building. Results: The Tests of Assumption showed that the data was not normally distributed as there was more than one “Reject” at the 0.05 probability level. For analysis, the Krukal-Wallis One-Way ANOVA was utilized and results showed that due to a high probability level of 0.57, the H0 could not be rejected and as a result there are no differences in radiation levels being emitted into the buildings tested. Conclusion: The amount of Wi-Fi radiation in the three buildings tested at BCIT were not significantly different from one another., Project submitted in partial fulfillment of the requirement for the degree of Bachelor of Technology in Environmental Health, British Columbia Institute of Technology, 2014., Peer-reviewed article, Published., Peer reviewed, Wi-Fi, EMF, Radiation, BCIT, Schools, Public, Building, Internet

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