Spatial And Temporal Variations Of Microplastic Concentrations In Portland's Freshwater Ecosystems,
2022
Portland State University
Spatial And Temporal Variations Of Microplastic Concentrations In Portland's Freshwater Ecosystems, Rebecca Talbot, Elise F. Granek, Heejun Chang, Rosemary Wood, Susanne Brander
Geography Faculty Publications and Presentations
While microplastics are a pollutant of growing concern in various environmental compartments, less is known regarding the sources and delivery pathways of microplastics in urban rivers. We investigated the relationship between microplastic concentrations and various spatiotemporal factors (e.g., land use, arterial road length, water velocity, precipitation) in two watersheds along an urban-rural gradient in the Portland metropolitan area. Samples were collected in August, September, and February and were analyzed for total microplastic count and type. Nonparametric statistics were used to evaluate potential relationships with the explanatory variables, derived at both the subwatershed and near stream scales. In August, microplastic concentrations …
Butte Priority Soils Operable Unit (Bpsou) Silver Bow Creek/Butte Area Npl Site,
2022
Montana Tech Library
Butte Priority Soils Operable Unit (Bpsou) Silver Bow Creek/Butte Area Npl Site, Atlantic Richfield Company
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Atlantic Richfield Response To Agency Comments On The Draft Butte Priority Soils Operable Unit (Bpsou) 2021 Groundwater Monitoring Data Summary Report, January 2021 – December 2021; Dated April 8, 2022,
2022
Montana Tech Library
Atlantic Richfield Response To Agency Comments On The Draft Butte Priority Soils Operable Unit (Bpsou) 2021 Groundwater Monitoring Data Summary Report, January 2021 – December 2021; Dated April 8, 2022, Atlantic Richfield Company
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Re: 2021 Butte Priority Soils Operable Unit (Bpsou) Draft Groundwater Monitoring Data Summary Report. Consent Decree- Civil Action No. Cv 89-039-Bu-She,
2022
Management Service Company, ARCO
Re: 2021 Butte Priority Soils Operable Unit (Bpsou) Draft Groundwater Monitoring Data Summary Report. Consent Decree- Civil Action No. Cv 89-039-Bu-She, Adrian Kien
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Silver Bow Creek/Butte Area Npl Site Butte Priority Soils Operable Unit,
2022
Montana Tech Library
Silver Bow Creek/Butte Area Npl Site Butte Priority Soils Operable Unit, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Mp765: Creating The Orono Bog Boardwalk: A Facility For Education, Research, And Recreation,
2022
University of Maine
Mp765: Creating The Orono Bog Boardwalk: A Facility For Education, Research, And Recreation, Ronald B. Davis
Miscellaneous Publications
A memoir by Dr. Ronald Davis detailing the creation of the Orono Bog Boardwalk. The Orono Bog Boardwalk is a premier destination in the Bangor/Orono area for persons wishing to experience the beauty and fascinating plants and animals of a Maine bog. The 1-mile boardwalk loop trail begins at the forested wetland edge in the Bangor City Forest, and after 800 feet crosses the Orono town line into the portion of the Orono Bog owned by the University of Maine. Along the way the boardwalk passes through a wide range of changing vegetation and environments on its way to the …
Silver Bow Creek/Butte Area Npl Site Butte Priority Soils Operable Unit,
2022
Montana Tech Library
Silver Bow Creek/Butte Area Npl Site Butte Priority Soils Operable Unit, Environmental Standards, Inc., Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Silver Bow Creek/Butte Area Npl Site Butte Priority Soils Operable Unit,
2022
Montana Tech Library
Silver Bow Creek/Butte Area Npl Site Butte Priority Soils Operable Unit, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Butte Priority Soils Operable Unit Silver Bow Creek/Butte Area Npl Site,
2022
Montana Tech Library
Butte Priority Soils Operable Unit Silver Bow Creek/Butte Area Npl Site, Trec Inc., A Woodard And Curran Company
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Epa Region 8 Qa Document Review Crosswalk,
2022
Environmental Protection Agency
Epa Region 8 Qa Document Review Crosswalk, Nikia Greene
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Aquatic Diversity In A Changing Tropical Andean Glacierized Catchment: Macroinvertebrates Reveal Possible Important Consequences To The Chimborazo Region As Glaciers Recede And The Climate Continues To Change, Tanner Thomas
Independent Study Project (ISP) Collection
Tropical Andean glaciers are retreating rapidly, and their disappearance will have drastic consequences for the people and ecosystems that depend on them. While they have begun to receive the attention they deserve in scientific literature, much is still not known. Majority of these investigations have taken place on the Volcán Antisana, while other important glacierized systems, like the Volcán Chimborazo have received little attention. This investigation aimed to a) evaluate the possible effects of glacier loss and climate change on aquatic ecosystems by comparing glacial meltwater, non-glacial and mixed streams, and b) to evaluate the effects of pasture intensity on …
Sacred Scavengers: Vulture Conservation In Nepal,
2022
SIT Study Abroad
Sacred Scavengers: Vulture Conservation In Nepal, Hans Nedde
Independent Study Project (ISP) Collection
In the 1990s, a veterinary drug used to treat pain and disease in cattle nearly brought the nine vulture species of Nepal to extinction. In a span of 15 years, over 97% of vultures in Nepal perished. For the past 20 years, governments, organizations, and communities have been working together to save these vital scavengers from vanishing. From the lowlands to the Himalayas, vultures have been interacting with the environment and humans for millennia. This study explores the role that vultures play both ecologically and culturally in Nepal. It investigates vultures as a crucial ecological influence and how human action …
Honey As A Biomonitor For Air Pollutant Deposition In The Eastern United States Using Ion Chromatography And Scanning Electron Microscopy,
2022
William & Mary
Honey As A Biomonitor For Air Pollutant Deposition In The Eastern United States Using Ion Chromatography And Scanning Electron Microscopy, Cole Cochran
Undergraduate Honors Theses
Anthropogenic activities generate metal, acid, and particulate air pollutants which negatively impact human and ecological health. In the United States, power plant, industrial, and vehicle emissions are leading causes of air pollution, however, the measurement of air pollution at high-resolution spatial regimes remains a challenge. Honey has emerged as a powerful biomonitoring tool to effectively quantify contaminants without the need for a large array of monitoring instruments. I hypothesized that honey could be used to effectively measure and map modern air pollutant spatiotemporal relationships over the Eastern U.S. Using ion chromatography with sulfate as an indicator for air pollution and …
Butte Priority Soils Operable Unit (Bpsou) Silver Bow Creek/Butte Area Npl Site,
2022
Montana Tech Library
Butte Priority Soils Operable Unit (Bpsou) Silver Bow Creek/Butte Area Npl Site, Atlantic Richfield Company
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Attachments To Reports Generated April 2022,
2022
Montana Tech Library
Attachments To Reports Generated April 2022, Atlantic Richfield Company, Environmental Protection Agency, Trec Inc., A Woodard And Curran Company
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Extreme Winds Alter Influence Of Fuels And Topography On Megafire Burn Severity In Seasonal Temperate Rainforests Under Record Fuel Aridity,
2022
Portland State University
Extreme Winds Alter Influence Of Fuels And Topography On Megafire Burn Severity In Seasonal Temperate Rainforests Under Record Fuel Aridity, Cody Evers, Andres Holz, Sebastian Upton Busby, Max Nielsen-Pincus
Environmental Science and Management Faculty Publications and Presentations
Nearly 0.8 million hectares of land were burned in the North American Pacific Northwest (PNW) over two weeks under record-breaking fuel aridity and winds during the extraordinary 2020 fire season, representing a rare example of megafires in forests west of the Cascade Mountains. We quantified the relative influence of weather, vegetation, and topography on patterns of high burn severity (>75% tree mortality) among five synchronous megafires in the western Cascade Mountains. Despite the conventional wisdom in climate-limited fire regimes that regional drivers (e.g., extreme aridity, and synoptic winds) overwhelm local controls on vegetation mortality patterns (e.g., vegetation structure and …
Larval Fish Abundance In The Benthic And Surface Drift Of The Missouri River,
2022
University of Nebraska - Lincoln
Larval Fish Abundance In The Benthic And Surface Drift Of The Missouri River, Ryan L. Ruskamp
Department of Agricultural Leadership, Education and Communication: Dissertations, Theses, and Student Scholarship
Knowledge of the larval fish community of the Missouri River is one of the biggest gaps in fisheries research. The Nebraska Game and Parks Commission has sampled the drift of the Missouri River for many years (1983-2015), but these data have not been compiled into a unified assessment. Therefore, the objectives of this study were to: 1) quantify temporal and spatial aspects of larval fish community composition (richness) and structure (abundance) of the surface drift, 2) quantify associations of larval fish communities of the drift to different discharges of the Missouri River, 3) quantify the larval benthic drift community, and …
Comparing Amphibian Species Diversity And Abundance In Natural Forest And Cacao Agroforest At Finca La Magnita, Changuinola, Bocas Del Toro, Panamá Lake Barrett,
2022
SIT Study Abroad
Comparing Amphibian Species Diversity And Abundance In Natural Forest And Cacao Agroforest At Finca La Magnita, Changuinola, Bocas Del Toro, Panamá Lake Barrett, Lake Barrett
Independent Study Project (ISP) Collection
Amphibians are currently undergoing rapid and drastic biodiversity loss worldwide, largely due to the disease Chytridiomycosis. Because of this, efforts to conserve amphibian biodiversity are urgent and have been given increasing importance. However, studies investigating the effectiveness of agroforestry systems, a commonly used agricultural method in which trees and other elements of forests are retained on land used for agriculture, for amphibian conservation are uncommon. As a result, the capacity of agroforests to serve as a tool for amphibian conservation is unclear. To determine if agroforests can serve as a habitat for amphibians and a tool for their conservation, this …
Safe Water For All: A Multi-Modal Approach To North Alabama's Water Resources,
2022
Jacksonville State University
Safe Water For All: A Multi-Modal Approach To North Alabama's Water Resources, Elijah Walker
Theses
Environmental degradation is a destructive force produced by the human disturbance of pollution. It is a phenomenon that gradually evolves landscapes over time resulting in irreversible outcomes. Environmental degradation physically affects spaces’ resources, objects, and inhabiting humans. This study observes the impacts of pollution beyond physical boundaries and how it affects human identity/sense of place through the utilization of geographic information systems. Specifically, it examines cultural identity developed through human experiences and connections to landscapes containing water resources. Following, pollution contaminates water resources disrupting experiences and connections thus causing the cultural identity to disappear. The case study applied to this …
Butte Area Npl Site Butte Priority Soils Operable Unit (Bpsou),
2022
Montana Tech Library
Butte Area Npl Site Butte Priority Soils Operable Unit (Bpsou), Trec Inc., A Woodard And Curran Company
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
