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12 sty 2024 · The National Water Availability Assessment Data Companion is a centralized website and data delivery system that will provide routinely updated and nationally consistent modeled water quantity, water quality, and water use information, along with long-term trends in observational data.
A new, interactive mapping tool, developed by the USGS National Water-Quality Assessment Project, allows users to do just that—visualize long-term changes in water quality and in health of aquatic life at hundreds of sites on streams and rivers across the United States.
This mapper provides results from the largest-ever assessment of water quality changes in the Nation's streams and rivers. More than 185 million water-quality records from over 600 Federal, State, Tribal, and local organizations were screened as part of this assessment.
7 cze 2023 · The NRSA is designed to answer the following questions about rivers and streams across the United States: What percentage of rivers and streams support healthy ecological communities and recreation? What are the most common problems? Are conditions improving or getting worse? Are investments in water quality focused appropriately?
22 wrz 2023 · In this review, we summarize exposure risk profiles and health effects for seven legacy and emerging drinking water contaminants or contaminant groups: arsenic, disinfection by-products,...
22 cze 2021 · This study builds on a growing body of evidence showing access to plumbing, water quality, and basic sanitation are lacking for a disturbingly large number of US residents by providing a ...
13 wrz 2023 · We reviewed national and regional approaches for river health monitoring to develop a comprehensive set of scalable indicators that can support “top-down” global surveillance while also facilitating standardised “bottom-up” local monitoring efforts.
