Mercury Transport and Fate Through a Watershed

نویسنده

  • Cynthia Gilmour
چکیده

Disclaimer The research described in this document has been funded wholly by the United States Environmental Protection Agency (EPA) under the Science to Achieve Results (STAR) grants program. The information does not necessarily reflect the views of the Agency and no official endorsement should be inferred. Mention of trade names or commercial products does not constitute endorsement or recommendation by EPA for use. The information presented in this synthesis report is intended to provide the reader with insights about the progress and scientific achievements of STAR research grants. The report lists the grantees whose research is discussed and also indicates where more detailed peer-reviewed scientific data can be found. This report is not sufficiently detailed nor is it intended to be used directly for environmental assessments or decision making. Readers with these interests should instead consult the peer reviewed publications produced by the STAR grantees and conduct necessary data quality evaluations as required for their assessments.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The Spatial Distribution and Fate of Trace Metals in Ombrotrophic Peat Bogs

Atmospheric deposition of heavy metals and other pollutants has substantially increased due to human activities over the past several hundred years. For some metals such as lead and mercury, these changes have been well studied because of their potentially harmful impact to human and ecosystem health. However, some aspects of metal transport and storage in the environment are still not well und...

متن کامل

Wetland influence on mercury fate and transport in a temperate forested watershed.

The transport and fate of mercury (Hg) was studied in two forest wetlands; a riparian peatland and an abandoned beaver meadow. The proportion of total mercury (THg) that was methyl mercury (% MeHg) increased from 2% to 6% from the upland inlets to the outlet of the wetlands. During the growing season, MeHg concentrations were approximately three times higher (0.27ng/L) than values during the no...

متن کامل

Modeled Watershed Runoff Associated with Variations in Precipitation Data, with Implications for Contaminant Fluxes: Initial Results

Precipitation is one of the primary forcing functions of hydrologic and watershed fate and transport models; however, in light of advances in precipitation estimates across watersheds, data remain highly uncertain. A wide variety of simulated and observed precipitation data are available for use in regional air quality models and watershed fate and transport models. Although these single media ...

متن کامل

Characterization of fate and transport of isoxaflutole, a soil-applied corn herbicide, in surface water using a watershed model.

The objective of this study is to conduct a comprehensive assessment of the transport of isoxaflutole and RPA 202248 and their accumulation potential in semistatic water bodies, using a distributed watershed scale model and observed water quality data. A conceptual model was developed to characterize the fate and transport of isoxaflutole residues to and in surface water. The soil and water ass...

متن کامل

0 u ) Mercury and Organic Carbon Relationships in Streams Draining Forested Upland / Peatland Watersheds

We determined the fluxes of total mercury (HgT), total organic carbon (TOC), and dissolved organic carbon (DOC) from five upland/ peatland watersheds at the watershed outlet. The difference between TOC and DOC was defined as particulate OC (POC). Concentrations of HgT showed moderate to strong relationships with POC (I?* = 0.77) when ah watersheds were grouped. Although POC only accounts for 10...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2007