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Which are the 6 criteria air pollutants specified under the Clean Air Act quizlet?

Author

Charlotte Adams

Published Feb 28, 2026

Which are the 6 criteria air pollutants specified under the Clean Air Act quizlet?

The act identified six pollutants to monitor and control. Sulfur dioxide, nitrogen oxides, carbon monoxide, particulate matter, tropospheric ozone, and lead, carbon dioxide. The six listed under the Clean Air Act that the EPA must specify allowable concentrations of each pollutant.

Simply so, which are the 6 criteria air pollutants specified under the 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”).

Similarly, what are the 6 criteria pollutants in the original Clean Air Act Why were they chosen? 1) Sulfur Dioxide 2) Nitrogen Oxides 3) Carbon Monoxide 4) Ozone (and its precursor volatile organic compounds) 5) Lead 6) Particulate Matter These six are referred to as conventional or criteria pollutants, and they were addressed first because they contributed to the largest volume of air quality degradation and are

Also asked, what are the six criteria air pollutants?

These six pollutants are carbon monoxide, lead, nitrogen oxides, ground-level ozone, particle pollution (often referred to as particulate matter), and sulfur oxides.

What are the criteria pollutants in the original Clean Air Act?

EPA has promulgated NAAQS for six criteria pollutants: sulfur dioxide, particulate matter, nitrogen dioxide, carbon monoxide, ozone and lead.

What are the 7 criteria air pollutants?

These commonly found air pollutants (also known as "criteria air pollutants") are found all over the United States. The criteria air pollutants include particle pollution, ground-level ozone, carbon monoxide, sulfur dioxide, nitrogen dioxide, and lead.

What are 10 key elements to the Clean Air Act?

They are particle pollution (often referred to as particulate matter), ground-level ozone, carbon monoxide, sulfur oxides, nitrogen oxides, and lead.

What are 2 ways we can prevent air pollution quizlet?

  • reduce air pollution by improving energy efficiency.
  • reduce coal use.
  • increase natural gas use.
  • increase use of renewable energy resources.
  • burn lower sulfur coal.
  • install scrubbers to sequester sulfur and nitrogen oxides.
  • remove NOx from car exhaust.
  • tax SO2 emissions.

What are the criteria for air pollutants?

Environmental Protection Agency (EPA) as “criteria” pollutants—criteria meaning that the concentrations of these pollutants in the atmosphere are useful as indicators of overall air quality. The sources, acceptable concentrations, and effects of the criteria pollutants are summarized in the table.

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.

What is the Clean Air Act quizlet?

The Clean Air Act (CAA) is the comprehensive federal law that regulates air emissions from stationary and mobile sources. This law authorizes EPA to establish National Ambient Air Quality Standards (NAAQS) to protect public health and public welfare and to regulate emissions of hazardous air pollutants.

What are the 6 criteria pollutants and what are their major sources?

The six criteria pollutants are carbon monoxide, ground-level ozone, lead, nitrogen dioxide, particulate matter, and sulfur dioxide. Criteria pollutants are measured using the Mecklenburg County ambient air monitoring network.

What are the major air pollutants and their sources?

Criteria pollutants
pollutantcommon sources
carbon monoxide (CO)automobile emissions, fires, industrial processes
nitrogen oxides (NO and NO2)automobile emissions, electricity generation, industrial processes
sulfur dioxide (SO2)electricity generation, fossil-fuel combustion, industrial processes, automobile emissions

What is considered bad air quality index?

for the pollutant. AQI values at and below 100 are generally considered to be satisfactory. When AQI values are above 100, air quality is considered to be unhealthy, at first for members of populations at greatest risk of a health effect, then for the entire population as AQI values get higher (greater than 150).

What is the highest air quality index?

Think of the AQI as a yardstick that runs from 0 to 500. The higher the AQI value, the greater the level of air pollution and the greater the health concern. For example, an AQI value of 50 or below represents good air quality, while an AQI value over 300 represents hazardous air quality.

Which two pollutants are the greatest threat to human health?

Ground-level ozone and airborne particles are the two pollutants that pose the greatest threat to human health in this country.

Why do parts of California have such bad air pollution?

Why do parts of California have such bad air pollution? Sources of air pollution in California include vehicular emissions, demand for energy production through fossil fuels, and household energy consumption as well as wildfires as a prominent natural cause.

What is a healthy air quality index?

Types of Air Pollutants
Air Quality Index (AQI) ValuesLevels of Health ConcernColors
When the AQI is in this range:..air quality conditions are:as symbolized by this color:
0-50GoodGreen
51-100ModerateYellow
101-150Unhealthy for Sensitive GroupsOrange

Which is not an air pollutant?

Nitrogen is not an air pollutant as the atmospheric composition contains 78% nitrogen and 21% oxygen by proportion. Oxides of nitrogen from external sources and carbon monoxide are various exhaust gases from vehicles which are air pollutants causing damage to the atmosphere.

Which was a requirement of the Clean Air Act quizlet?

A Clean Air Act requirement that State Implementation Plans must include a permit review that applies to the construction and operation of new and modified stationary sources in non-attainment areas to ensure attainment of national ambient air quality standards.

What are the major provisions of the Clean Air Act?

The act establishes federal standards for mobile sources of air pollution and their fuels and for sources of 187 hazardous air pollutants, and it establishes a cap-and-trade program for the emissions that cause acid rain. It establishes a comprehensive permit system for all major sources of air pollution.

What type of facility does the Clean Air Act affect the most?

The Clean Air Act has the greatest effect on power plants.

What is the Clean air and Water Act?

The Clean Water Act (CWA) establishes the basic structure for regulating discharges of pollutants into the waters of the United States and regulating quality standards for surface waters.

What did the Clean Air Act prohibit?

It mandated the gradual phasing out of chlorofluorocarbons (CFCs) and other ozone-depleting chemicals. The Clean Air Act of 1990 also placed new regulations on automobile emissions. It set targets for reducing the emissions of hydrocarbons and nitrogen oxides by vehicles and assembly plants.

How did the Clean Air Act get passed?

Eight years later, Congress passed the nation's Clean Air Act of 1963. This act dealt with reducing air pollution by setting emissions standards for stationary sources such as power plants and steel mills. Amendments to the Clean Air Act were passed in 1965, 1966, 1967, and 1969.

How much does the Clean Air Act cost?

The analysis finds that the Clean Air Act regulations will reduce in air pollution and create sizeable health benefits. The annual costs of the regulations analyzed in the study increase from $20 billion in the year 2000 to $65 billion by 2020.

What did the Clean Air Act do?

The Clean Air Act (CAA) (42 U.S.C. 7401 et seq.) is a comprehensive Federal law that regulates all sources of air emissions. The 1970 CAA authorized the U.S. Environmental Protection Agency (EPA) to establish National Ambient Air Quality Standards (NAAQS) to protect public health and the environment.

What are the 4 goals of the Clean Air Act?

It has four major components: i) it put into place National Ambient Air Quality Standards which are intended to protect human health and environment (the Environmental Protection Agency (EPA) developed these standards and they targeted major polluting chemicals); ii) EPA was to establish New Source Performance

What is the purpose of the Clean Air Act quizlet?

The goal of the law was to control air pollution on a national level, it also provided the funds for federal government research of air pollution. Effect of the law? It changed the federal governments role in air pollution control. Established Air quality standards.