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Images from USGS Chesapeake Bay reports and field activities are available to visualize and help translate the science. They are available for your use, just please cite the USGS as the source of respective images.
Various species of field-collected freshwater fish displaying DELT, including A) an eroded fin, B) melanistic areas, C) parasitic leeches (black arrow) and black spots (trematode, white arrows), D) a cyst (on gill), and E) tumors.
Various species of field-collected freshwater fish displaying DELT, including A) an eroded fin, B) melanistic areas, C) parasitic leeches (black arrow) and black spots (trematode, white arrows), D) a cyst (on gill), and E) tumors.
Fish collection streams (n= 1,196) for 57 species within the Chesapeake Bay watershed (black outline). Grey circles indicate the presence of observed DELT, and white circles indicate its absence, in at least one individual fish at each stream. Major land use and land cover were obtained from the Chesapeake Bay Program (2023).
Fish collection streams (n= 1,196) for 57 species within the Chesapeake Bay watershed (black outline). Grey circles indicate the presence of observed DELT, and white circles indicate its absence, in at least one individual fish at each stream. Major land use and land cover were obtained from the Chesapeake Bay Program (2023).
Maps showing the predicted year of submergence for parts of the Eastern Neck Island National Wildlife Refuge, as predicted by three different models under the same RSLR scenario.
Maps showing the predicted year of submergence for parts of the Eastern Neck Island National Wildlife Refuge, as predicted by three different models under the same RSLR scenario.
Map showing predicted environmental concentrations (PEC) of PFAS in Potomac River watershed streams, where PFAS is represented as the summed concentration of eight PFAS found in wastewater treatment plant discharges, in nanograms per liter (ng/L).
Map showing predicted environmental concentrations (PEC) of PFAS in Potomac River watershed streams, where PFAS is represented as the summed concentration of eight PFAS found in wastewater treatment plant discharges, in nanograms per liter (ng/L).
Conceptual diagram of the measurement and modeling approaches used in this study. ΣPFAS (ng/L), summed concentration of PFAS in nanograms per liter.
Conceptual diagram of the measurement and modeling approaches used in this study. ΣPFAS (ng/L), summed concentration of PFAS in nanograms per liter.
This map displays the 10-year trend for suspended sediment, as well as the percent total change in flow-normalized loads for suspended sediment across the Chesapeake Bay Watershed from 2014 to 2023.
This map displays the 10-year trend for suspended sediment, as well as the percent total change in flow-normalized loads for suspended sediment across the Chesapeake Bay Watershed from 2014 to 2023.
This map displays the 10-year trend for total nitrogen, as well as the total change in flow-normalized loads per acre for total nitrogen across the Chesapeake Bay Watershed from 2014 to 2023.
This map displays the 10-year trend for total nitrogen, as well as the total change in flow-normalized loads per acre for total nitrogen across the Chesapeake Bay Watershed from 2014 to 2023.
This map displays the 10-year trend for total nitrate + nitrogen (also known as inorganic nitrogen), as well as the total change in flow-normalized loads per acre for total nitrate + nitrite across the Chesapeake Bay Watershed from 2014 to 2023.
This map displays the 10-year trend for total nitrate + nitrogen (also known as inorganic nitrogen), as well as the total change in flow-normalized loads per acre for total nitrate + nitrite across the Chesapeake Bay Watershed from 2014 to 2023.
This map displays the 10-year trend for orthophosphate, as well as the total change in flow-normalized loads per acre for orthophosphate across the Chesapeake Bay Watershed from 2014 to 2023.
This map displays the 10-year trend for orthophosphate, as well as the total change in flow-normalized loads per acre for orthophosphate across the Chesapeake Bay Watershed from 2014 to 2023.
This map displays the 10-year trend for suspended sediment, as well as the total change in flow-normalized loads per acre for suspended sediment across the Chesapeake Bay Watershed from 2014 to 2023.
This map displays the 10-year trend for suspended sediment, as well as the total change in flow-normalized loads per acre for suspended sediment across the Chesapeake Bay Watershed from 2014 to 2023.
This map displays the long-term trend for nitrate + nitrite, also known as inorganic nitrogen, as well as the total change in flow-normalized per-acre loads for nitrate + nitrite across the Chesapeake Bay Watershed from 1985 to 2023.
This map displays the long-term trend for nitrate + nitrite, also known as inorganic nitrogen, as well as the total change in flow-normalized per-acre loads for nitrate + nitrite across the Chesapeake Bay Watershed from 1985 to 2023.
This map displays the long-term trend for total phosphorus, as well as the total change in flow-normalized per-acre loads for total phosphorus across the Chesapeake Bay Watershed from 1985 to 2023.
This map displays the long-term trend for total phosphorus, as well as the total change in flow-normalized per-acre loads for total phosphorus across the Chesapeake Bay Watershed from 1985 to 2023.
This map displays the average 5-year per acre loads, also known as yields, of nitrate + nitrite, also known as total inorganic nitrogen, across the Chesapeake Bay Watershed from 2019 to 2023.
This map displays the average 5-year per acre loads, also known as yields, of nitrate + nitrite, also known as total inorganic nitrogen, across the Chesapeake Bay Watershed from 2019 to 2023.
This map displays the 10-year trend for total nitrogen, as well as the percent total change in flow-normalized loads for total nitrogen across the Chesapeake Bay Watershed from 2014 to 2023.
This map displays the 10-year trend for total nitrogen, as well as the percent total change in flow-normalized loads for total nitrogen across the Chesapeake Bay Watershed from 2014 to 2023.
This map displays the average 10-year trends and per acre loads, also known as yields, of suspended sediment across the Chesapeake Bay Watershed from 2014 to 2023.
This map displays the average 10-year trends and per acre loads, also known as yields, of suspended sediment across the Chesapeake Bay Watershed from 2014 to 2023.
This map displays the load of total nitrogen across the Chesapeake Bay Watershed in 2023.
Learn more about Chesapeake Bay Water-Quality Loads and Trends and the USGS Nontidal Network.
This map displays the load of total nitrogen across the Chesapeake Bay Watershed in 2023.
Learn more about Chesapeake Bay Water-Quality Loads and Trends and the USGS Nontidal Network.
This map displays the load of orthophosphate across the Chesapeake Bay Watershed in 2023.
Learn more about Chesapeake Bay Water-Quality Loads and Trends and the USGS Nontidal Network.
This map displays the load of orthophosphate across the Chesapeake Bay Watershed in 2023.
Learn more about Chesapeake Bay Water-Quality Loads and Trends and the USGS Nontidal Network.
This map displays the load of suspended sediment across the Chesapeake Bay Watershed in 2023.
Learn more about Chesapeake Bay Water-Quality Loads and Trends and the USGS Nontidal Network.
This map displays the load of suspended sediment across the Chesapeake Bay Watershed in 2023.
Learn more about Chesapeake Bay Water-Quality Loads and Trends and the USGS Nontidal Network.
This map displays the long term trend for total phosphorus, as well as the percent total change in flow-normalized loads for total phosphorus across the Chesapeake Bay Watershed from 1985 to 2023.
This map displays the long term trend for total phosphorus, as well as the percent total change in flow-normalized loads for total phosphorus across the Chesapeake Bay Watershed from 1985 to 2023.
This map displays the long term trend for suspended sediment, as well as the percent total change in flow-normalized loads for suspended sediment across the Chesapeake Bay Watershed from 1985 to 2023.
This map displays the long term trend for suspended sediment, as well as the percent total change in flow-normalized loads for suspended sediment across the Chesapeake Bay Watershed from 1985 to 2023.
This map displays the long-term trend for total nitrogen, as well as the total change in flow-normalized per-acre loads for total nitrogen across the Chesapeake Bay Watershed from 1985 to 2023.
This map displays the long-term trend for total nitrogen, as well as the total change in flow-normalized per-acre loads for total nitrogen across the Chesapeake Bay Watershed from 1985 to 2023.