Medicine and Health Sciences Commons^™

Get Your Butt Off The Ground!: Consequences Of Cigarette Waste And Litter-Reducing Methods, Joyce Lee

Pomona Senior Theses

Cigarette butts are rapidly accumulating on our planet; trillions of them are discarded every year. In this paper, I examine why cigarette litter is a problem. I first discuss the biodegradability of filters and its scientific basis, including ways to enhance degradation rates by chemically manipulating filters. I also talk about the persistence of cigarette chemicals and their potential toxic effects on children and animals. I consider other social, economic, and environmental consequences of cigarette filters and chemicals. Furthermore, I discuss various solutions smokers and non-smokers alike have created to address the problem of cigarette litter; these methods come from …

Arsenic Contamination In Groundwater In Vietnam: An Overview And Analysis Of The Historical, Cultural, Economic, And Political Parameters In The Success Of Various Mitigation Options, Thuy M. Ly

Pomona Senior Theses

Although arsenic is naturally present in the environment, 99% of human exposure to arsenic is through ingestion. Throughout history, arsenic is known as “the king of poisons”; it is mutagenic, carcinogenic, and teratogenic. Even in smaller concentrations, it accumulates in the body and takes decades before any physical symptoms of arsenic poisoning shows. According to the World Health Organization (WHO), the safe concentration of arsenic in drinking water is 10 µg/L. However, this limit is often times ignored until it is decades too late and people begin showing symptoms of having been poisoned.

This is the current situation for Vietnam, …