Congress passes Air Quality Act in 1967. Since there was no enforcement of whatsoever, it failed to be successful
Clean Air Act
Another try at reducing the air pollution in the USA. The National Ambient Air Quality Standards (NAAQS) was established in order to enforce these laws. The Environmental Protection Agency (EPA) is then needed to set rules for the release of pollutants that could harm humans and animals. There's primary and secondary standards. Primary standards help our health, and secondary help protect welfare such as vegetables.
Lead is Decreased
1976 - 1980
The process of getting lead out of our daily lives begins. The amount of lead in our bodies drop 50% from 1976 to 1980.
Clean Air Act is Revised
The New Source Review (NSR) is enacted. This focuses toward the older factories that were grandfathered in. The old factories ended up polluting more than the newer ones, so then the EPA was required to do assessments, and install pollution controlling technologies.
Lead Levels are Still Dropping
Lead levels in blood has dropped 50% since 1976, and now lead in children has decreased 37%.
Lead levels in gasoline have decreased to 0.1 grams/gallon
Clean Air Act gets ANOTHER Revision
- acid rain control
-prohibition of leaded gasoline
The Bush Administration tries to rollback the NSR. This would allow old factories and industries to not have to follow the strict guidelines. Also, they are not required to make the change public either.