FR 2024-29463

Overview

Title

Review of the Secondary National Ambient Air Quality Standards for Oxides of Nitrogen, Oxides of Sulfur, and Particulate Matter

Agencies

ELI5 AI

The EPA wants the air to be cleaner, so they changed the rules for how much smelly sulfur stuff can be in the air, saying it should be very tiny over a long time. They looked at science stuff to decide, but didn't change the rules for some other things like smoke and car fumes.

Summary AI

The Environmental Protection Agency (EPA) has revised the air quality standards for sulfur dioxide (SO₂) to better protect the environment. The previous standard had a three-hour measurement period, but now it is an annual average over three years, limited to 10 parts per billion (ppb). The EPA decided to keep the existing standards for nitrogen oxides and particulate matter the same. This update comes after reviewing scientific evidence and public feedback to ensure the standards protect public wellness without being too strict.

Abstract

Based on the Environmental Protection Agency's (EPA's) review of the air quality criteria for ecological effects and secondary national ambient air quality standards (NAAQS) for oxides of nitrogen (N oxides), oxides of sulfur (SO<INF>X</INF>), and particulate matter (PM), the EPA is revising the existing secondary sulfur dioxide (SO<INF>2</INF>) standard to an annual average, averaged over three consecutive years, with a level of 10 parts per billion (ppb). Additionally, the Agency is retaining the existing secondary standards for N oxides and PM, without revision. The EPA is also finalizing revisions to the data handling requirements for the secondary SO<INF>2</INF> NAAQS.

Type: Rule
Citation: 89 FR 105692
Document #: 2024-29463
Date:
Volume: 89
Pages: 105692-105788

AnalysisAI

The Environmental Protection Agency (EPA) has issued a final rule revising air quality standards with a specific focus on sulfur dioxide (SO₂). The agency has decided to amend the measurement method for sulfur dioxide pollution, shifting from a three-hour measurement to an annual average over three years, setting a limit of 10 parts per billion (ppb). This change aims to offer more consistent protection for environmental and public health. The EPA has opted to retain the existing standards for nitrogen oxides and particulate matter without alteration, following a careful review of scientific literature and feedback from the public.

Significant Issues and Concerns

Complex Language and Technical Details
The document uses highly technical language and scientific jargon, which could be challenging for individuals without specialized knowledge in environmental regulations to fully grasp. This complexity may hinder public understanding and engagement with the revised standards.

Lack of Economic Impact Details
There is a noticeable absence of information regarding the potential economic impacts or costs associated with implementing these revised standards. The lack of financial transparency might concern businesses and industries that will need to comply with these regulations, as they will be uncertain about the potential economic burden.

Clarity on Standard Retention
While the rationale for revising the sulfur dioxide standard is well-articulated, the reasons for maintaining the current standards for nitrogen oxides and particulate matter are not clearly explained. This leaves stakeholders questioning the ecological and welfare basis for retaining these standards without adjustment.

Public Engagement and Decision-Making Transparency
The process by which public comments were reviewed is not described in detail, raising issues about how transparently the EPA incorporated public input into its decision-making process. Furthermore, it appears that stakeholder engagement might have been limited primarily to government and scientific advisory bodies, neglecting broader public involvement.

Potential Public Impact

Broad Environmental and Health Protection
For the general public, these changes represent a commitment to addressing air quality issues that can affect health and ecosystems. The revised sulfur dioxide standard is intended to provide better protection from atmospheric pollutants, which can contribute significantly to respiratory problems and environmental degradation.

Impact on Industries and Local Governments
Industries and local governments responsible for meeting these air quality standards may face implementation challenges, particularly if there are added regulatory compliance costs. Without clear guidance on the resources or infrastructure needed to meet these new standards, these stakeholders may experience uncertainty and financial strain.

Stakeholder Impacts

Environmental Groups
For environmental advocacy groups, the revised sulfur dioxide standards may be seen positively as a step towards more robust environmental protection. However, the retention of existing standards for nitrogen oxides and particulate matter might be viewed as insufficient progress in tackling broader air quality issues.

Economic and Industrial Stakeholders
Businesses and industries involved in activities that emit nitrogen oxides, sulfur oxides, or particulate matter may experience negative impacts due to the revised standards. These entities could face increased operational costs due to potentially stricter regulatory requirements. Conversely, the retention of existing standards for certain pollutants could be seen as a relief, avoiding additional regulatory burden.

State and Local Governments
The implications for state and local governments are mixed; on one hand, they will need to ensure compliance with the revised standards, potentially requiring new monitoring systems or regulation updates. On the other hand, maintaining existing standards for some pollutants reduces immediate pressure to develop new compliance strategies.

In summary, the EPA's actions to revise the sulfur dioxide standard are part of a larger effort to enhance air quality and public health. However, the document's complexity and the lack of detail on economic implications and public engagement could hinder the effectiveness of these regulatory changes. Both positive and negative impacts are anticipated across various stakeholders, underscoring the need for clear communication and continued dialogue between the EPA and the public.

Issues

  • • The document employs technical language and complex scientific terms that may be difficult for a general audience to understand, potentially limiting public comprehension.

  • • The document does not provide specific details about potential costs or economic impacts associated with the revised standards, leaving questions about financial implications unanswered.

  • • While the regulatory reasoning is detailed, the explanation for why certain standards are retained without revision lacks clarity on the specific ecological and public welfare considerations involved.

  • • The process by which public comments were considered does not appear to be described in detail, raising questions about transparency in decision-making.

  • • There is no mention of the involvement of stakeholders outside of government and scientific advisory bodies, which could suggest a lack of broader public engagement in the revision process.

  • • Specifics regarding the implementation of the new standards, such as the infrastructure and resources required, are not clearly outlined, potentially leading to uncertainty in execution.

Statistics

Size

Pages: 97
Words: 135,015
Sentences: 3,597
Entities: 10,152

Language

Nouns: 44,100
Verbs: 10,119
Adjectives: 9,611
Adverbs: 3,188
Numbers: 6,334

Complexity

Average Token Length:
5.14
Average Sentence Length:
37.54
Token Entropy:
6.25
Readability (ARI):
25.37

Reading Time

about 9 hours