PMID: 12785529Jun 6, 2003Paper

Continuous analysis of dissolved gaseous mercury (DGM) and mercury flux in two freshwater lakes in Kejimkujik Park, Nova Scotia: evaluating mercury flux models with quantitative data

Environmental Science & Technology
Nelson J O'DriscollDavid Lean

Abstract

Diurnal patterns for dissolved gaseous mercury (DGM) concentration, mercury flux, several water variables (pH, oxidation reduction potential (ORP), water temperature), and meteorological variables (wind speed, air temperature, % relative humidity, solar radiation) were measured in two lakes with contrasting dissolved organic carbon (DOC) concentrations in Kejimkujik Park, Nova Scotia. A continuous analysis system made it possible to measure quick changes in DGM over time. Consistently higher DGM concentrations were found in the high DOC lake as compared to the low DOC lake. An examination of current mercury flux models using this quantitative data indicated some good correlations between the date and predicted flux (r ranging from 0.27 to 0.83) but generally poor fit (standard deviation of residuals ranging from 0.97 to 3.39). Cross-correlation analysis indicated that DGM dynamics changed in response to solar radiation with lag-times of 65 and 90 min. This relationship with solar radiation was used to develop new predictive models of DGM and mercury flux dynamics for each lake. We suggest that a generalized approach using time-shifted solar radiation date to predict DGM can be incorporated into existing mercury flux models. It ...Continue Reading

References

May 16, 2001·Environmental Science & Technology·H Zhang, S E Lindberg
Jul 27, 2002·Environmental Science & Technology·Steven D SicilianoD R S Lean
Mar 29, 2003·The Science of the Total Environment·N J O'DriscollD R S Lean
Dec 1, 1994·Environmental Science & Technology·M AmyotD R Lean
Apr 1, 1983·Environmental Science & Technology·D Mackay, A T Yeun

❮ Previous
Next ❯

Citations

Mar 29, 2003·The Science of the Total Environment·N J O'DriscollD R S Lean
Feb 11, 2016·Environmental Science & Technology·Zhijia CiShiwei Wang
Jan 10, 2012·The Science of the Total Environment·Feng HeBaohua Gu
Mar 5, 2016·Environmental Science and Pollution Research International·Zhijia CiZhangwei Wang
Jan 31, 2008·The Science of the Total Environment·Hong Zhang, Christopher Dill
Sep 16, 2015·Environmental Science & Technology·Erin A MannNelson J O'Driscoll
May 13, 2006·The Science of the Total Environment·Fuad A AbabnehDavid R S Lean
Jul 2, 2011·Environmental Pollution·Joseph S DenkenbergerPranesh Selvendiran
Jun 16, 2009·Environmental Pollution·Xinbin FengZhonggen Li
Jun 29, 2004·Environmental Research·Don Mackay, Liisa Toose
Jun 20, 2017·The Science of the Total Environment·Rute CesárioJoão Canário
Nov 27, 2007·Ecotoxicology·Neil M Burgess, Michael W Meyer
Dec 22, 2016·Environmental Science and Pollution Research International·Hongxia DuYasuo Igarashi
Feb 16, 2007·Chemical Reviews·William F FitzgeraldChad R Hammerschmidt
Aug 30, 2008·Environmental Science & Technology·N J O'DriscollD R S Lean

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.