These data could be used to predict the db levels of

these data could be used to predict the dB levels of work environments before placing employees
on site.
New Employee Training
All new Sun Coast employees participate in general health and safety training. The
training program was revamped and implemented six months ago. Data is available for two
Groups; a) Group A employees who participated in the previous training program, and b) Group
B employees who participated in the revised training program. It is necessary to know if the
revised training program is more effective than the prior training program.
Lead Exposure
Employees working on job sites to remediate lead must be monitored. Lead levels in
blood are measured as micrograms of lead per deciliter of blood (μg/dL). A base-line is taken

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pre-exposure, then post-exposure at regular intervals, and at the conclusion of the remediation.
Data are available for 49 employees who recently concluded a two-year-long lead remediation
project. It is necessary to determine if blood lead levels have increased.
Return-On-Investment
Sun Coast would like to know if all lines of service provide the same return-on-
investment. Return-on-investment data is available for air monitoring, soil remediation, water
reclamation, and health and safety training. If return-on-investment is not the same for all lines
of service, it would be helpful to know were differences exist.
Literature Review
In recent years, accelerating industrialization has made air pollution more serious.
According to the statistics of The Global Burden of Disease, Particulate Matter (PM) is one of
the important air pollutants, it exists as a liquid or solid in the atmosphere. According to previous
studies, PM with a diameter of less than 2.5 microns (PM2.5) is more dangerous than PM with a
diameter of less than 10 microns (PM10), as it can penetrate the respiratory barrier and enter
circulatory system of the body. At that time, it combined with toxic substances that endanger
human health. However, previous studies have not assessed the relationship between PM level
and employee severance level.
How training of occupational safety and health courses for employees affects the
efficiency of working time as well as the cost that Sun Coast has spent is an issue that needs to
be addressed in the research. this. In 2009, Mungen and Gurcanli conducted research and
proposed methods to reduce the risk of occupational accidents. Ulubeyli et al. (2015) studied to
develop awareness of the impact of occupational safety and health on workers. From there, we
will see the correlation between the cost of training on occupational safety and the number of

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hours employees spend, in order to re-evaluate the effectiveness of training on occupational
safety.