Anthropogenic influences on the global mercury cycle: A model-based analysis

R. J.M. Hudson, S. A. Gherini, W. F. Fitzgerald, D. B. Porcella

Research output: Contribution to journalArticlepeer-review

Abstract

A model of the global Hg cycle is presented and applied to analyze modern Hg budgets and historical changes in deposition. Our modeling suggests that mixing into the ocean interior is a significant sink of Hg and likely has limited any anthropogenically-caused increase in surface ocean Hg concentrations to about 50% above natural levels rather than 200% as has recently been argued. Additionally, both the increase in air pollutants during the industrial era and their recent decrease in North America likely have affected atmospheric Hg scavenging and the resulting records of Hg deposition rates in lake and bog sediments.

Original languageEnglish (US)
Pages (from-to)265-272
Number of pages8
JournalWater, Air, & Soil Pollution
Volume80
Issue number1-4
DOIs
StatePublished - Feb 1 1995
Externally publishedYes

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Ecological Modeling
  • Water Science and Technology
  • Pollution

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