This paper analyzes effects of nonpoint source pollution on regulation optimal contracts in asymmetric information situation. We consider a continuum of agents (to formalize major characteristic of nonpoint source pollution) which pollute another agent (affected agent). We distinguish different forms of externalities and examine if it is always necessary to modify optimal contract of each respo...

Environmental studies of motor vehicles typically focus on air pollution or noise, but ignore water pollution. In this paper, we examine some of the impacts of motor vehicle transportation on non-point source and on groundwater pollution. Our estimates of the present value of costs for cleaning up leaking underground storage tanks and for controlling highway runoff for major arterials range fro...

The goal is to develop an inverse model capable of simultaneously estimating the parameters appearing in an air pollution model for an instantaneous point source, by using measured gas concentration data. The approach taken was to develop the inverse model as a non-linear least squares estimation problem in which the source term is estimated using measurements of pollution concentration on the ...

a study of substantial anthropogenic related pollution in the coastal samut prakarn province (thailand) was carried out focusing on the bang pu nature reserve (remnant mangrove wetland) using a remote sensing (geospatial) technique. statistical regression models were developed between biochemical parameters of sample point and related reflectance data obtained from satellite imagery (landsat tm...

to the river near Parma, which is a short distance from where the Boise River empties into the Snake River. By comparing measurements of nitrogen and phosphorus at Lucky Peak Dam (above Boise) with similar measurements at Parma, an estimate of pollution from both urban and rural sources along the river can be made. Contamination concentrations vary greatly with the level of stream flow because ...

Overview This paper presents the development of a Graphical User Interface (GUI) to a Decision Support System (DSS) for NonPoint Source (NPS) pollution control on watershed scales. The GUI and all components of the DSS are entirely embedded in ERDAS IMAGINE and the system is launched from the main toolbar. The system uses IMAGINE's GIS functions for data storage and pre−processing, SML for hydr...

Worldwide environmental pollution by perfluorinated compounds (PFCs) has been reported. PFCs have also been reported to have nonpoint sources (NPSs). A fixed-point hourly monitoring in the river was conducted during a storm event using an automatic sampler to estimate the impact of the first-flush of PFCs from NPS in this study. Perfluorocarboxylates (PFCAs) and perfluoroalkyl sulfonates (PFASs...

Wireless Sensor Networks (WSNs) consist of several sensor nodes which communicate with each other over a wireless channel. There are many real-world deployments of WSNs, for example they are used for environmental monitoring in the mountains as well as in cities to monitor the air pollution. There are different models which try to describe the wireless channel between nodes within WSNs, but the...

Wireless sensor networks (WSNs) are attracting increasing research attention, due to their wide spectrum of applications, including military purposes for monitoring, tracking and surveillance of borders, intelligent transportation systems for monitoring traffic density and road conditions, and environmental applications to monitor, for example, atmospheric pollution, water quality, agriculture,...

Understanding the spatial and temporal variation of nutrient concentrations, loads, and their distribution from upstream tributaries is important for the management of large lakes and reservoirs. The Three Gorges Dam was built on the Yangtze River in China, the world's third longest river, and impounded the famous Three Gorges Reservoir (TGR). In this study, we analyzed total nitrogen (TN) conc...