What 3 major things did the 1990 version of the Clean Air Act address?

What 3 major things did the 1990 version of the Clean Air Act address?

Building on Congressional proposals advanced during the 1980s, the President proposed legislation designed to curb three major threats to the nation’s environment and to the health of millions of Americans: acid rain, urban air pollution, and toxic air emissions.

What changes were made in 1990 to the Clean Air Act Why were these changes needed?

Emission Standards for Mobile Sources The 1990 amendments significantly tightened these standards: for light-duty vehicles (a category that includes cars, SUVs, minivans, and most pickup trucks), the hydrocarbon standard was reduced by 40% and the nitrogen oxides (NOx) standard by 50%.

What was added to the Clean Air Act in 1990?

One major initiative that Congress added to the Clean Air Act in 1990 is an operating permit program for larger industrial and commercial sources that release pollutants into the air.

What is Section 112 of the Clean Air Act?

For major sources, Section 112 requires that EPA establish emission standards that require the maximum degree of reduction in emissions of hazardous air pollutants. These emission standards are commonly referred to as “maximum achievable control technology” or “MACT” standards.

What are the six criteria pollutants monitored under the 1990 Clean Air Act?

EPA has established national ambient air quality standards (NAAQS) for six of the most common air pollutants— carbon monoxide, lead, ground-level ozone, particulate matter, nitrogen dioxide, and sulfur dioxide—known as “criteria” air pollutants (or simply “criteria pollutants”).

What two environmental issues were addressed by the 1990 amendments to the Clean Air Act?

Specifically the amendments were designed to curb four major threats to the environment and to the health of millions of Americans: acid rain, urban air pollution, toxic air emissions, and stratospheric ozone depletion.

Why was 1990 important air quality?

Why was 1990 an important year regarding air quality? The United States took first steps to keep the air clean.

What are covered by the Clean Air Act?

What are covered by the Clean Air Act? All potential sources of air pollution (mobile, point and area sources) must comply with the provisions of the law. All emissions must be within the air quality standards. Mobile sources refer to vehicles like cars, trucks, buses, jeepneys, tricycles, motorcycles, and vans.

How has the air quality changed since 1990?

Air pollution in the U.S. has decreased since about 1990, and a new study conducted at the University of North Carolina at Chapel Hill now shows that this air quality improvement has brought substantial public health benefits.

Why was 1990 an important year regarding air quality?

Why was 1990 an important year regarding air quality? – The United States took first steps to keep the air clean.

How do you test air quality in your home?

You can measure the air quality in your home using an always-on electronic monitor that consistently tests and reports the levels of pollutants and humidity via an in-built display panel, or linked to a smartphone.