K.J. Esposito | Search USGS

USGS2010

Fate of estrogenic compounds during municipal sludge stabilization and dewatering

This project brought together a team of experts in the fields of environmental engineering, analytical chemistry and hydrogeology, and biological assay analysis to evaluate the occurrence and fate of estrogenic compounds and the estrogenicity of biosolids derived from wastewater treatment. The primary objective of the study was to provide key baseline information concerning the estrogenicity (measured with in vitro bioassays) and concentrations of individual estrogenic compounds and other trace organic chemicals through common wastewater treatment processes. This research is important for developing information critical to the assessment of the potential risks associated with biosolids land application. Published by WERF. 178 pages. Soft cover and online PDF. (2010)

Report↗

USGS1995

A new U-Ti-Ca-HREE hydrated oxide and associated niobian rutile from Topaz Valley, Utah

In October of 1988, specimens of yellow and/or white acicular needles growing out of equant to platy hematite were collected from the east side of Topaz Valley. For the past five years, attempts have been made by all of the authors to completely characterize what is believed to be a new mineral species. Because of several major factors the space group, exact formula, and structure are still unknown. The potentially new mineral and some associated minerals are described here with the hope that elsewhere in the world better and more material exists that will allow complete characterization. -from Authors

Mineralogical Record↗