Skip to main content

APPLICATION OF A MASS BALANCE AND BIOACCUMULATION MODEL FOR A PCB TMDL IN LAKE ONTARIO

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

The Lake Ontario ecosystem has experienced significant changes over the last century from the effects of toxic pollution and habitat loss. In 1972, Canada and the United States took actions to ban and control contaminants entering the Great Lakes, and in 1987 renewed the Great Lakes Water Quality Agreement with the goal to restore the overall health of the Great Lakes ecosystem. Today, as a result of these actions, levels of toxic contaminants in the Lake Ontario ecosystem have decreased significantly. However, fish consumption advisories remain in many areas of the Great Lakes basin based on levels of PCBs, mirex, dioxins, and mercury. Lake Ontario is listed by New York State on the 2002 Section 303(d) list of impaired waters. In Lake Ontario, the pollutants listed as causing the fish consumption advisories are PCBs, mirex, and dioxins. Because of this listing, Lake Ontario has been scheduled for a TMDL to be completed by 2011.

This paper describes the development of a mass balance and food chain bioaccumulation model, LOTOX2, and its application applied for the purpose of supporting the Lake Ontario LaMP (Lakewide Management Plan) and the TMDL process (DePinto et al. 1997, 1999b). LOTOX2 has been calibrated for tPCB in the lake using long-term data and a reconstructed loading history to conduct a long-term hindcast of 137Cs and tPCB in water, bottom sediments, and adult lake trout (DePinto et al. 1998; DePinto et al. 1999a). This paper investigates the utility of using this model to support a TMDL process for PCBs in Lake Ontario. Challenges associated with conducting a TMDL for a bioaccumulative chemical in a large lake whose watershed spans two countries are discussed.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Document Type: Research Article

Publication date: 2003-01-01

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more