Structure and development of the alimentary canal of the southern armyworm larva.

Structure and development of the alimentary canal of the southern armyworm larva.

Date: March 1941
Creator: Woke, Paul A.
Description: Describes a scientific research study of southern army larvae. Describes in detail the alimentary canal of the larva.
Contributing Partner: UNT Libraries Government Documents Department
How Healthy is the Upper Trinity River?: Biological and Water Quality Perspectives

How Healthy is the Upper Trinity River?: Biological and Water Quality Perspectives

Date: 1990
Creator: Jensen, Ric
Description: This conference report contains discussions and papers from a symposium hosted at Texas Christian University, in Fort Worth, Texas, examining the ecological health of the Upper Trinity River, and the impacts of various human activity, such as agriculture, urbanization, and waste management. The papers cover the effect of water quality on urban rivers, long-term water quality trends in the Trinity River, solutions that may improve water quality in the river, as well as biological, agricultural and waste-water issues.
Contributing Partner: UNT Libraries
The State of the Hudson 2009

The State of the Hudson 2009

Date: 2009
Creator: New York (State). Hudson River Estuary Program.
Description: This report describes the environmental quality of the Hudson River and its watershed, including issues such as pollution, population growth, and biodiversity. The report also describes the habitats of estuaries, watersheds, and rivers in general.
Contributing Partner: UNT Libraries
Great Lakes Restoration Initiative Action Plan

Great Lakes Restoration Initiative Action Plan

Date: February 21, 2010
Creator: United States. Council on Environmental Quality.
Description: This action plan articulates the most significant ecosystem problems for the Great Lakes, and describes efforts to address them. The five areas are toxic substances, invasive species, health and pollution, wildlife and habitat preservation and restoration, and finally a component that covers accountability and evaluation.
Contributing Partner: UNT Libraries
Effects of methanol, atrazine, and copper on the ultrastructure of Pseudokirchneriella subcapitata (Selenastrum capricornutum).

Effects of methanol, atrazine, and copper on the ultrastructure of Pseudokirchneriella subcapitata (Selenastrum capricornutum).

Date: May 2004
Creator: Garrett, David C.
Description: The toxicity of methanol, atrazine, and copper to Pseudokirchneriella subcapitata (Korshikov) Hindák historically referred to as Selenastrum capricornutum Printz were determined following 96 hrs growth in a modified Goram's growth media. Methanol and atrazine inhibited fluorescence readings in the cultures by 50% (IC50) at concentrations of 2% and 82 µg/l respectively. These toxicity values compared favorably to other published reports. The IC50 for copper was 160 µg/l which is substantially higher than reported values. This is understandable because of the high chelating capacity of Goram's media. The use of stereologically derived relative volume in the chloroplasts, mitochondria, lipid bodies, phosphate bodies, and nucleus was investigated to determine if it could be used as a sensitive endpoint in toxicity tests. The volume fractions for the chloroplasts and mitochondria were normally distributed in control cells while the nuclei, phosphate bodies, and lipid bodies were not. The chloroplasts were the most dominate organelle occupying a mean relative volume of 46% and mitochondria occupied a mean relative volume of 3%. The nucleus and phosphate bodies occupied a median relative volume of 7% and 2% respectively. The lipid bodies were rare in section profile and no meaningful median relative volume could be calculated. Up to ...
Contributing Partner: UNT Libraries
Organic Act of the National Institute of Environmental Analysis, Environmental Protection Administration, Executive Yuan

Organic Act of the National Institute of Environmental Analysis, Environmental Protection Administration, Executive Yuan

Date: January 13, 1995
Creator: China (Republic : 1949- )
Description: This law, passed by the Republic of China (Taiwan) establishes the role National Institute of Environmental Analysis.
Contributing Partner: UNT Libraries
Clearing the Waters: A focus on water quality solutions

Clearing the Waters: A focus on water quality solutions

Date: March 2010
Creator: Palanaippan, Meena
Description: This report discusses global water issues and offers a variety of proposals for countering the degradation of freshwater ecosystems for the benefit of public health and the environment.
Contributing Partner: UNT Libraries
Dust from Africa Leads to Large Toxic Algae Blooms in Gulf of Mexico, Study Finds. [Press release].

Dust from Africa Leads to Large Toxic Algae Blooms in Gulf of Mexico, Study Finds. [Press release].

Date: August 28, 2001
Creator: NASA News
Description: This press release summarizes the findings of a new study. Saharan dust clouds travel thousands of miles and fertilize the water off the West Florida coast with iron, which kicks off blooms of toxic algae. The research was partially funded by a NASA grant as part of ECOHAB: Florida (Ecology and Oceanography of Harmful Algal Blooms), a multi-disciplinary research project designed to study harmful algae.
Contributing Partner: UNT Libraries
Regulations Governing Water Pollution Control Measure Plans and Permit Application Review

Regulations Governing Water Pollution Control Measure Plans and Permit Application Review

Date: October 16, 2006
Creator: China (Republic : 1949- ). Huan jing bao hu shu
Description: This law was passed by the government of the Republic of China (Taiwan) to protect human health and the environment by controlling water pollution.
Contributing Partner: UNT Libraries
Toxic Chemical Substances Control Act

Toxic Chemical Substances Control Act

Date: January 3, 2007
Creator: China (Republic : 1949- ). Huan jing bao hu shu
Description: This law was passed by the government of the Republic of China (Taiwan) to protect human health and the environment by controlling the production and handling of toxic chemicals.
Contributing Partner: UNT Libraries
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