Clean Air Act 1970: 10 Things (2023) You Have to Know

The Clean Air Act of 1970 is a landmark piece of legislation that continues to have impacts on our health and environment well into the 21st century.

For context, in the 1970s, air pollution was five times worse than it is today.

If you’re wondering what the Clean Air Act did and how it affects you, here’s everything you need to know!

1. What is the Clean Air Act of 1970?

The Clean Air Act of 1970 is a federal law that was passed by Congress in 1970.

It tackles the issue of air quality in the U.S.

Since it was initially passed, the act has been revised several times.

However, the law has always focused on the regulation of greenhouse gas emissions from both stationary and mobile sources.

For instance, the Clean Air Act allows the EPA to regulate mobile sources like cars, trucks, and planes.

It set emissions standards for these sources that have progressively tightened over time.

For example, the EPA is proposing standards for vehicles that will increase in stringency each year between 2027 and 2032.

2. What are the key features of the Clean Air Act 1970?

Here are the more significant elements of the Clean Air Act of 1970:

bulletIt set national air quality standards for the following six pollutants: carbon monoxide, lead, nitrogen oxides, ozone, particulate matter, and sulfur dioxide.

bulletIt mandates that states develop State Implementation Plans (SIPs) to meet national air quality standards.

bulletIt regulates emissions from stationary sources like power plants and factories through permits and establishing emissions standards

bulletIt regulates emissions standards from mobile sources like cars and trucks through fuel and emissions standards

bulletIt allows citizen suits so the Act can be properly enforced.

3. How has the Clean Air Act 1970 affected air quality?

Since it was enacted, the Clean Air Act has helped to improve air quality significantly.

It has enabled the decline of the six major pollutants named in the Act.

For instance, emissions of carbon monoxide have decreased by 73 percent and lead emissions have decreased by 86 percent.

The Act has also helped to reduce the number of unhealthy air quality days in various parts of the country.

These are days where the air pollution is deemed “unhealthy” (a value of 101 or higher on the EPA’s scale) several days in a row.

When the air reaches this unhealthy level, the EPA will issue warnings of “Air Pollution Action Days”, which alert people to take precautions for the sake of their health and the environment.

4. What are the benefits of the Clean Air Act 1970?

The Clean Air Act has always sought to benefit two distinct parties.

The first is the citizens of the world.

In the 70s, air pollution was growing and rampant.

This noticeable issue began to prompt concern amongst citizens for their health and well-being, which lead directly to the passage of the Act.

The second party that the Clean Air Act has sought to help is the environment itself because any type of pollution can affect the health of plants and animals.

Here are the top benefits of having the Act in place:

bulletImproved air quality for all

Improved air quality has countless benefits including reduced health problems, improved quality of life, increased lifespan, environmental benefits, and economic benefits.

Part of the reason that citizens became so concerned about ongoing air pollution is that it causes a variety of health problems like respiratory illnesses, cardiovascular disease, and cancer.

By improving the air you breathe each day, you reduce your chances of suffering from these conditions.

Another benefit of improved air quality is increased lifespan.

When you address the core issue that is causing the health problems, then you’re able to increase lifespans.

For air pollution, this primarily means reducing the risk of premature death from respiratory and cardiovascular diseases.

Finally, improved air quality offers both environmental and economic benefits.

When you reduce air pollution, you reduce acid rain, protect ecosystems, and slow down climate change.

These steps can also produce economic benefits like reduced healthcare costs and increased productivity for workers who are no longer experiencing adverse health conditions.

bulletBoosted energy efficiency

Reducing air pollution helps to boost energy efficiency.

Because these regulations often regulate the burning of fossil fuels, corporations must find other more energy-efficient ways to run their operations.

This helps to reduce their carbon footprint and environmental impact.

Not only will this reduce energy bills for citizens, but it also creates a comfortable living environment and increases property values as more energy-efficient homes come into demand.

bulletImproved quality of life for individuals and communities

Cleaner air means better quality of life.

People can enjoy the outdoors and reduce their need for medical treatments and hospital visits.

Studies show that just 20 minutes outside each day helps to reduce stress.

However, if the air pollution is bad enough, then this time can jeopardize your health instead of helping it, which is why it’s so important to have laws in place protecting citizens from sources of air pollution.

bulletIncreased jobs in the environmental technology and clean energy sectors

Energy-efficient technologies and systems are now in high demand because of the Clean Air Act 1970.

As a result, the development and installation of these technologies be prioritized.

This creates jobs in manufacturing, construction, and related industries.

5. What have been the challenges of implementing the Clean Air Act 1970?

The Clean Air Act has some challenges that you should be mindful of.

For one, it balances environmental protection with economic growth and development.

This can often be off-putting for companies looking to grow their business.

If the company relies on fossil fuels, having to comply with the Clean Air Act 1970 will slow down its efforts.

Additionally, ensuring compliance with the Act in smaller communities and businesses can be difficult.

Often, these groups have limited resources, which means it can take a bit of juggling to figure out how to make the switch from what they’ve always used (fossil fuels) to a more energy-efficient alternative.

Next, emerging pollutants and newer sources of air pollutants can pose issues for compliance.

This is unchartered territory for the Clean Air Act, and thus, it can take some time to figure out how to address pollutants that didn’t exist in the 1970s when the Act was first created (or even amended in the 1990s).

Finally, sources of air pollution outside of the United States do still cause an issue for the country.

The Clean Air Act has been largely successful for the U.S. over the last 50 years, but China and other Asian countries do not have the same regulations.

Furthermore, the EPA has received pushback in recent years from states and industries that wish to roll back some of the existing air quality regulations.

6. What revisions have occurred to the Clean Air Act 1970?

Since it was first enacted, the Clean Air Act has evolved.

The first major amendments occurred in 1977 and the next major changes occurred in 1990.

The 1977 Amendments to the Clean Air Act included provisions for the Prevention of Significant Deterioration (PSD) as well as other stipulations relating to areas that are non-attainment with respect to National Ambient Air Quality Standards.

In 1990, the new amendment primarily focused on the control of acid deposition as acid rain was a big issue at the time.

The amendments also authorized a program to control 189 toxic pollutants and expanded the enforcement authority of the EPA.

7. What is the role of landowners?

Landowners may not be directly subjected to the Clean Air Act.

However, they do play an important role as all citizens do.

Here are some ideas about how landowners specifically can contribute.

bulletUnderstand the law

Landowners are subject to the law (more than any other citizen) if they operate a stationary or mobile source of air pollution like a factory, power plant, or vehicle.

You should be sure to obtain the proper permits and comply with the emissions standards established by the Act.

bulletSupport clean transportation

Use low-emission vehicles on your land and promote either public transit or walking and biking to/near your land if possible.

This helps to reduce emissions for cars and trucks which are major contributors to air pollution.

bulletPlant trees and other vegetation

A simple way to help promote clean air is to plant trees and other vegetation that help absorb carbon dioxide as well as other pollutants from the air.

This helps to improve air quality overall and mitigate air pollution.

bulletReduce emissions from wood burning

Wood burning is often a significant source of air pollution.

If you typically use wood-burning stoves or fireplaces, you can consider using alternative sources of heat.

If you must utilize this option, select clean-burning wood stoves and fireplaces, properly season your firewood, and avoid burning trash or other materials.

bulletSupport renewable energy

If you’re able, install sources of renewable energy on your land like wind and solar power.

You can also lease your land for wind or solar farms, investigate rooftop solar panels, or support policies that encourage renewable energy development.

bulletSupport local air quality initiatives

When participating in community meetings, always be sure to support local air quality initiatives.

You can also contact elected officials and support organizations that focus on improving air quality.

8. What is the EPA’s role in implementing the Clean Air Act?

The Environmental Protection Agency (EPA) is responsible for implementing and enforcing the Clean Air Act.

They ensure everything from setting and enforcing standards to ensuring compliance with the Act across the country.

These are national air quality standards, which have created some issues in the last few years as states have looked to deviate from what the Act outlines.

Nonetheless, it is still up to the EPA to regulate any emissions coming from either stationary or mobile sources.

If you’re wondering how the EPA enforces the Clean Air Act, here’s what you should know:

bulletThey set and enforce NAAQS (National Ambient Air Quality Standards) for pollutants harmful to human health and the environment.

They then monitor the air quality across the country to ensure that these standards are met.

If the standards aren’t met, then the EPA can require the state to develop and implement a plan to reduce pollution.

bulletThey regulate industrial and mobile sources of air pollution such as power plants, refineries, factories, cars, and trucks.

bulletThey conduct inspections and investigations to ensure the sources of air pollution comply with the Clean Air Act.

If they do not comply, then they can use fines, legal action, and penalties to correct this.

bulletThey provide technical assistance and funding to states so that they can implement programs to reduce air pollution.

bulletThey engage in public outreach and education to help people understand what they can do to reduce their emissions.

9. What are the requirements for industrial facilities?

If they emit certain levels of pollutants, industrial facilities must obtain permits under the Clean Air Act.

These permits will specify the amount of pollutants that the facility is allowed to emit.

It will also require the facility to install pollution control equipment.

The EPA has national emissions standards for a variety of industrial sectors.

These include power plants, refineries, chemical manufacturing plants, and pulp and paper mills.

10. How has the Clean Air Act impacted air quality in the U.S.?

Since the Act was passed in 1970, the air quality in the U.S. has vastly improved.

Emissions of pollutants like carbon monoxide, lead nitrogen oxides, and sulfur dioxide have decreased by more than 70 percent.

Additionally, certain levels of particular matter have decreased by about 40 percent.

If you’re still not convinced, the EPA has estimated the benefits of the Clean Air Act.

They said that the benefits outweighed the cost by a factor of more than 30 to 1.

This includes improved health and productivity.

Final Thoughts

The Clean Air Act of 1970 was a landmark piece of legislation for the U.S.

It protects both the health of Americans and the environment by reducing air pollution and protecting public health and welfare.

Overall, the Clean Air Act provides a framework for continued progress.

By understanding the act and adhering to it wherever possible, landowners can play an important role — as either citizens or businesses — to support the efforts to protect the environment.

Always remember that, although you are just one person, you can reduce your emissions and advocate for strong air quality policies which are significant in the long run.

Additional Resources

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Disclaimer: we are not lawyers, accountants or financial advisors and the information in this article is for informational purposes only. This article is based on our own research and experience and we do our best to keep it accurate and up-to-date, but it may contain errors. Please be sure to consult a legal or financial professional before making any investment decisions.

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