Theses and Dissertations

Title

Quantifying Pre-Industrial to Mid-Late 20th Century Anthropogenic Lead, Mercury and Cadmium Pollution in Caribbean Marine Environments Using Skeletonized Sea Turtle Remains

Issuing Body

Mississippi State University

Advisor

Zuckerman, Molly K.

Committee Member

Herrmann, Nicholas P.

Committee Member

Peacock, Evan

Date of Degree

1-1-2018

Original embargo terms

Visible to MSU only for 3 years

Document Type

Graduate Thesis - Open Access

Major

Applied Anthropology

Degree Name

Master of Arts

College

College of Arts and Sciences

Department

Department of Anthropology and Middle Eastern Cultures

Abstract

Various lines of evidence indicate that levels of anthropogenic pollutants, such as lead, mercury and cadmium, have increased in terrestrial and atmospheric environments since the early 19th century and the advent of industrialization. While the exposure to these three trace elements is a global concern, this study focused primarily on marine environments located throughout the Caribbean. Using ICP-MS, this study aimed to detect and quantify anthropogenic pollutants, specifically lead (Pb), mercury (Hg) and cadmium (Cd), using skeletonized remains of sea turtles as biological proxies for environmental quality. Archaeologically derived (n=5) and mid-late 20th century (n=6) Hawksbill and Green turtles were used to create a chronology of pollution exposure in Caribbean marine environments and establish a pre-industrial baseline for pollution exposure, useful for precisely gauging how human activities in the Caribbean, namely industrialization and tourism, have changed the concentration of these elements over time. Results from this study revealed that the industrial, modern sea turtle sample and the archaeological sample exhibit similar distributions of lead and cadmium ppm levels. Whereas, the mercury datasets revealed that the two samples share differing distributions of ppm levels, but that the archaeological sample yielded the higher mercury concentrations. Based on these results, this study was unable to verify whether skeletal sea turtle remains, specifically humeri, can be used as a biological proxy to reconstruct anthropogenic pollution in marine environments. Furthermore, it failed to quantify pre-industrial to mid-late 20th century anthropogenic lead, mercury, and cadmium pollution in Caribbean Marine Environments.

URI

https://hdl.handle.net/11668/19446

Comments

Caribbean||sea turtles||pollution||trace element analysis

This document is currently not available here.

Share

COinS