An official website of the United States Government Here's how you know

Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Home13 212 Pollution Great Lakes Canada 9.7.12

hide

13 212 Pollution Great Lakes Canada 9.7.12

February 5, 2019

U.S. Department of State