The effect of Bisphenol-a substitutes on the heart rate of Daphnia magna

School Name

Spring Valley High School

Grade Level

11th Grade

Presentation Topic

Zoology

Presentation Type

Non-Mentored

Oral Presentation Award

1st Place

Abstract

For over a decade, people have been aware of the negative effects of Bisphenol-A. However, the knowledge surrounding the substances now replacing BPA is much more limited. These BPA substitutes include Bisphenol-F and Bisphenol-S, known also as BPF and BPS respectively. Liou et. al (2012) shows that the urinary concentrations of Bisphenol-S are rising in eight countries studied, including the United States. This has the potential to become an even bigger problem. Without knowing what these BPA substitutes can do before using them, there is no way to see the danger that could be associated with them. The purpose of this study is to reveal the potential consequences of using these chemical compounds widespread. These may have impacts that have yet to be discovered, both for humans and the environment. The hypothesis is as follows: The highest concentrations of BPS and BPF will cause the greatest fluctuation of heart rates from the mean. This hypothesis was tested by using Daphnia magna and adding the three substances mentioned above to their pond water in various concentrations. After that, to determine the effects that those substances actually had, the data was analyzed. The analysis showed that the higher concentration (2.49 ng/ml), was significantly different that control group for both substances. The group with BPS had a higher mean than the BPF group but it was not significantly higher. Therefore, it is apparent that Bisphenol-A substitutes are not safe either. In fact, BPS and BPF held significant differences from the control, while the last study of BPA alone yielded no significant difference. It shows that BPA substitutes are more dangerous and have more harmful long term effects than BPA itself.

Location

Wall 211

Start Date

3-25-2017 10:15 AM

Presentation Format

Oral and Written

Group Project

No

COinS
 
Mar 25th, 10:15 AM

The effect of Bisphenol-a substitutes on the heart rate of Daphnia magna

Wall 211

For over a decade, people have been aware of the negative effects of Bisphenol-A. However, the knowledge surrounding the substances now replacing BPA is much more limited. These BPA substitutes include Bisphenol-F and Bisphenol-S, known also as BPF and BPS respectively. Liou et. al (2012) shows that the urinary concentrations of Bisphenol-S are rising in eight countries studied, including the United States. This has the potential to become an even bigger problem. Without knowing what these BPA substitutes can do before using them, there is no way to see the danger that could be associated with them. The purpose of this study is to reveal the potential consequences of using these chemical compounds widespread. These may have impacts that have yet to be discovered, both for humans and the environment. The hypothesis is as follows: The highest concentrations of BPS and BPF will cause the greatest fluctuation of heart rates from the mean. This hypothesis was tested by using Daphnia magna and adding the three substances mentioned above to their pond water in various concentrations. After that, to determine the effects that those substances actually had, the data was analyzed. The analysis showed that the higher concentration (2.49 ng/ml), was significantly different that control group for both substances. The group with BPS had a higher mean than the BPF group but it was not significantly higher. Therefore, it is apparent that Bisphenol-A substitutes are not safe either. In fact, BPS and BPF held significant differences from the control, while the last study of BPA alone yielded no significant difference. It shows that BPA substitutes are more dangerous and have more harmful long term effects than BPA itself.