Anthropogenic metal storage in wetland soils across the conterminous United States DOI
Matthew Dietrich, Michael Dumelle, Amanda M. Nahlik

и другие.

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Апрель 17, 2025

Abstract Wetlands provide many ecosystem services, such as mitigating pollution, attenuating flooding and drought extremes, providing habitat for species. However, studies quantifying potential wetland sequestration of heavy metals an service, particularly across large spatial extents, are sparse. We utilized data from the United States Environmental Protection Agency’s National Wetland Condition Assessment to estimate anthropogenic metal (Pb, Cu, Cr) storage by mass in upper 40 centimeters soils conterminous (CONUS)—never done before at this scale. Large amounts Cu Cr stored soil CONUS, 299.5 ± 73.2 (95% confidence interval) 483.4 132.1 thousand metric tons (MT), respectively. Anthropogenic Pb totaled 394.3 265.2 MT, which, context, is roughly equivalent 7% lead-based gasoline additives used U.S. between 1927–1994. Between 15–22% Cr, within cm CONUS estimated be anthropogenic. also loading normalize area compare different types features. In most cases, redox state, tidal influence, hydrologic regime, geographical region do not substantially impact estimates loading. It clear, though, that wetlands often contain substantive monitoring and/or geochemical changes important discern whether any may mobilize pose a hazard ecosystems or human health.

Язык: Английский

Anthropogenic metal storage in wetland soils across the conterminous United States DOI
Matthew Dietrich, Michael Dumelle, Amanda M. Nahlik

и другие.

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Апрель 17, 2025

Abstract Wetlands provide many ecosystem services, such as mitigating pollution, attenuating flooding and drought extremes, providing habitat for species. However, studies quantifying potential wetland sequestration of heavy metals an service, particularly across large spatial extents, are sparse. We utilized data from the United States Environmental Protection Agency’s National Wetland Condition Assessment to estimate anthropogenic metal (Pb, Cu, Cr) storage by mass in upper 40 centimeters soils conterminous (CONUS)—never done before at this scale. Large amounts Cu Cr stored soil CONUS, 299.5 ± 73.2 (95% confidence interval) 483.4 132.1 thousand metric tons (MT), respectively. Anthropogenic Pb totaled 394.3 265.2 MT, which, context, is roughly equivalent 7% lead-based gasoline additives used U.S. between 1927–1994. Between 15–22% Cr, within cm CONUS estimated be anthropogenic. also loading normalize area compare different types features. In most cases, redox state, tidal influence, hydrologic regime, geographical region do not substantially impact estimates loading. It clear, though, that wetlands often contain substantive monitoring and/or geochemical changes important discern whether any may mobilize pose a hazard ecosystems or human health.

Язык: Английский

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