About
33
Publications
10,653
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
344
Citations
Introduction
Dr. LeMonte has particular interest in the interdisciplinary study of extreme environments including the arctic, deserts, and coasts. He conducts studies under different experimental and environmental conditions (climate, Eh, pH, temp, hydration state, microbial populations) to understand the biogeochemical cycling and fate and transport of chemicals in the environment. Dr. LeMonte is experienced in using bright light sources generated at synchrotron facilities to ID geochemical fingerprints.
Current institution
Additional affiliations
August 2020 - present
July 2016 - August 2020
May 2011 - May 2016
Education
May 2011 - May 2016
January 2010 - April 2011
April 2005 - December 2009
Publications
Publications (33)
The association of carbon with mineral phases has been increasingly recognized as a major stabilizing mechanism for protecting organic matter against microbial degradation in soils. Iron (Fe) and manganese (Mn) oxides are of particular importance because of their abundance in soils and high reactive surface area. Both Fe and Mn are susceptible to r...
Climate change-induced perturbations in the hydrologic regime are expected to impact biogeochemical processes, including contaminant mobility and cycling. Elevated levels of geogenic and anthropogenic arsenic are found along many coasts around the world, most notably in south and southeast Asia, but also in the United States, particularly along the...
Permafrost thawing could increase soil contaminant mobilization in the environment. Our objective was to quantify metal accumulation capacities for plant species and functional groups common to Alaskan military training ranges where elevated soil metal concentrations were likely to occur. Plant species across multiple military training range sites...
Given the reported extent of microplastics in the aquatic environment, environmentally relevant exposure information for sediments dredged by the US Army Corps of Engineers will lend context to the risks posed by this contaminant during dredging. We measured the occurrence, abundance, and polymer composition of microplastics in sediments collected...
Antarctic soils are unique from those found nearly anywhere else on Earth yet can still harbor a broad diversity of microorganisms able to tolerate the challenging conditions typical of the continent. For these reasons, microbiologists have been drawn to Antarctica for decades. However, our understanding of which microbes thrive in Antarctic soils...
The dust cycle facilitates the exchange of particles among Earth's major systems, enabling dust to traverse ecosystems, cross geographic boundaries, and even move uphill against the natural flow of gravity. Dust in the atmosphere is composed of a complex and ever-changing mixture that reflects the evolving human footprint on the landscape. The emis...
Nitrogen (N) fertilizer applied as polymer coated urea (PCU) may have the potential to improve potato ( Solanum tuberosum L.) production. The objectives of this study were to determine the effects of PCU on potato yield and quality. ‘Russet Burbank’ potato was grown at three Idaho, USA locations. Five rates of N (0, 33, 67, 100, and 133% of the rec...
Historical industrial activities have resulted in soil contamination at sites globally. Many of these sites are located along coastlines, making them vulnerable to hydrologic and biogeochemical alterations due to climate change and sea-level rise. However, the impact of hydrologic dynamics on contaminant mobility in tidal environments has not been...
Metallic tungsten (W) is a highly dense material of increasing importance to the U.S. Army as a strategic, non-radioactive replacement for depleted uranium. While there is a growing body of evidence regarding the mechanistic behavior of ionic W (formed after the spontaneous oxidation of metal) in the environment, predicting its environmental fate r...
This booklet describes the past, present, and potential future of Utah Lake, the largest freshwater lake in Utah. This keystone ecosystem is a crucial link in the Pacific Flyway, an island of water in the arid Great Basin, and also at the center of one of the fastest-growing metropolitan regions of the United States. Understanding Utah Lake has nev...
This report details a study investigating the environmental impacts associ- ated with the development and manufacturing of carbon nanotube (CNT)– based ink (called CNTRENE 1030 material) and novel CNT temperature, flex, and moisture sensors. Undertaken by a private-public partnership in- volving Brewer Science (Rolla, Missouri), Jordan Valley Innov...
Utah Lake is a huge and unique waterbody at the heart of Utah Valley. Though it is one of the largest freshwater lakes west of the Mississippi River, many in our community know little about its history, ecology, and importance to our future. As the population of our valley grows, we need to understand Utah Lake so we can preserve and protect this k...
Here we report the Joule heating of graphite-based pixel arrays using direct current (DC) power and alternating current (AC) power. We show performance of a DC applicator for scalable heating and thermal pattern generation. We demonstrate, for the first time, large-area non-contact heating using microstrip patch antennas operating at 2.45 GHz. We f...
Modeling contaminant sorption data using a linear model is very common; however, the rationale for whether the y-intercept should be constrained or not remains a subject of debate. This article justifies constraining the y-intercept in the linear model to zero. By doing so, one imposes consistency on the system of linear equations, allowing for dir...
The United States footprint in the Arctic region falls within the state of Alaska. Ten percent (nearly 650,000 ha) of all active Army training lands worldwide are within this area and are managed by U.S. Army Alaska. In addition, due to past military missions, the state of Alaska is home to 338 Formerly Used Defense Sites (FUDS). As a result, a leg...
Accounting for environmental hazards in mission planning requires the most up-to-date observations and forecasting of the dynamic battlefield environment. In addition, some hazards, such as the exposure to toxic industrial chemicals and materials (TIC/Ms) in complex urban environments, cannot be predicted in time and space without significant a pri...
To maintain safe and navigable waterways the US Army Corps of Engineers uses dredging to excavate shoaled sediments from federal navigation projects. Given the reported extent of microplastics in the aquatic environment, environmentally relevant exposure information is needed for commonly dredged sediments to lend context to the potential ecologica...
Although N is beneficial and essential for life, it is also a common atmospheric pollutant as nitrous oxide (N2O) and ammonia (NH3)—contributed largely from N fertilization. Polymer-coated urea (PCU) fertilizer is a promising controlled release fertilizer that provides improved N-release timing. Glasshouse studies were conducted to compare N2O and...
Herein can be found the raw data used to generate the figures and statistics for this publication.
(XLSX)
This work details the effects of soil organic matter (SOM) and iron oxide content on response dampening of the quartz reststrahlen band (QRB) diagnostic IR spectral feature.
This work details the effect of long-term weathering on metallic DU penetrator rods in an arid environment.
Polymer coated urea (PCU) is a N fertilizer which, when added to moist soil, uses temperature-controlled diffusion to regulate N release in matching plant demand and mitigate environmental losses. Uncoated urea and PCU were compared for their effects on gaseous (N2O and NH3) and aqueous (NO3-) N environmental losses in cool season turfgrass over th...
Raw data collected at both sites for NH4+, N2O, NO3-, tissue and weather presented in spreadsheet form.
(XLS)
Although N is beneficial and essential for life, it is also a common atmospheric pollutant as nitrous oxide (N2O) and ammonia (NH3)—contributed largely from N fertilization. Turfgrass is the irrigated and fertilized crop with greatest acreage in the USA. Fall and spring applied N fertilizer trials were conducted over two years in an effort to deter...
Potato (Solanum tuberosum L.) requires steady, but not excessive nitrogen (N) supply for maximum tuber yield, size, and solids, as well as minimal internal and external defects. Although more costly and labor intensive than dry broadcast applications, growers typically apply a majority of N via fertigation. A controlled release N fertilizer, polyme...
Questions
Question (1)
When using buffers to maintain pH for sorption isotherms using natural waters, we are seeing a pH shift of 0.25 over a 24 h reaction. Are there ways to keep the pH more uniform than this?
