Public concern over the discharge of some nanomaterials to wastewater treatment systems has cause... more Public concern over the discharge of some nanomaterials to wastewater treatment systems has caused at least one product to be taken off the market. This paper explores the potential for nanomaterials to be included in the discharge of effluent to publicly owned treatment works, as well as water bodies generally, and the likely consequences of such releases. It uses a mass balance approach to quantify discharges for two case studies, to the extent possible. It also discusses regulatory restrictions that limit the discharges of nanomaterials. [1]
The federal law that regulates new and existing chemical substances, including engineered nanosca... more The federal law that regulates new and existing chemical substances, including engineered nanoscale chemical substances, is the Toxic Substances Control Act (TSCA). While there is much debate over how the U.S. Environmental Protection Agency (EPA) should deploy its significant TSCA authority to address potential risks to human health and the environment posed by engineered nanoscale materials, there is no doubt that EPA is already doing so. This article provides a general overview of TSCA as it relates to new and existing chemical substances, and discusses how EPA may go about discharging its significant TSCA authority with respect to engineered nanoscale substances. I. TSCA AND ENGINEERED NANOSCALE SUBSTANCES anotechnology is the subject of considerable excitement and attention these days. The many articles appearing in technical journals, trade and mainstream publications, and in other contexts make it impossible to be unaware of the immense commercial promise offered by nanotechn...
In the super-hyped world of nano, nanosilver is the proverbial poster child for all things good a... more In the super-hyped world of nano, nanosilver is the proverbial poster child for all things good and evil, depending upon your perspective. Silver enjoys many commercial applications, and its well recognized antimicrobial properties have been utilized since the beginnings of recorded history. Perhaps because of this success and high visibility, some are taking aim at silver and questioning whether there is too much silver used in industrial applications -and in particular whether there is too much silver used in consumer product applications in the form of nanoscale silver.
Public concern over the discharge of some nanomaterials to wastewater treatment systems has cause... more Public concern over the discharge of some nanomaterials to wastewater treatment systems has caused at least one product to be taken off the market. This paper explores the potential for nanomaterials to be included in the discharge of effluent to publicly owned treatment works, as well as water bodies generally, and the likely consequences of such releases. It uses a mass balance approach to quantify discharges for two case studies, to the extent possible. It also discusses regulatory restrictions that limit the discharges of nanomaterials. [1]
The federal law that regulates new and existing chemical substances, including engineered nanosca... more The federal law that regulates new and existing chemical substances, including engineered nanoscale chemical substances, is the Toxic Substances Control Act (TSCA). While there is much debate over how the U.S. Environmental Protection Agency (EPA) should deploy its significant TSCA authority to address potential risks to human health and the environment posed by engineered nanoscale materials, there is no doubt that EPA is already doing so. This article provides a general overview of TSCA as it relates to new and existing chemical substances, and discusses how EPA may go about discharging its significant TSCA authority with respect to engineered nanoscale substances. I. TSCA AND ENGINEERED NANOSCALE SUBSTANCES anotechnology is the subject of considerable excitement and attention these days. The many articles appearing in technical journals, trade and mainstream publications, and in other contexts make it impossible to be unaware of the immense commercial promise offered by nanotechn...
In the super-hyped world of nano, nanosilver is the proverbial poster child for all things good a... more In the super-hyped world of nano, nanosilver is the proverbial poster child for all things good and evil, depending upon your perspective. Silver enjoys many commercial applications, and its well recognized antimicrobial properties have been utilized since the beginnings of recorded history. Perhaps because of this success and high visibility, some are taking aim at silver and questioning whether there is too much silver used in industrial applications -and in particular whether there is too much silver used in consumer product applications in the form of nanoscale silver.
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Papers by Lynn Bergeson