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Енергетика та довкілля · 10.12.20101 хв читання

Integrated Risk Information System (IRIS); Announcement of Availability of Literature Searches for IRIS Assessments

Локальний автоматичний переклад · Оригінальна мова джерела

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The U.S. Environmental Protection Agency (EPA) is announcing the availability of literature searches for four IRIS assessments, acetaldehyde (CAS No. 75-07-0), hexachlorobutadiene (CAS No. 87-68-3), hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) (CAS No. 121-82-4), and naphthalene (CAS No. 91-20-3) and requesting scientific information on health effects that may result from exposure to these chemical substances. EPA's IRIS is a human health assessment program that evaluates quantitative and qualitative risk information on effects that may result from exposure to specific chemical substances found in the environment.

Оригінальна мова джерела: Federal Register — Environmental Protection AgencyВідкрити оригінальне повідомлення →

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Енергетика та довкілля · 27.05.2026

Phasedown of Hydrofluorocarbons: Allocation of 2026 Production and Consumption Allowances Set Aside for Metered Dose Inhalers

The Environmental Protection Agency (EPA) is providing notice that the Agency allocated hydrofluorocarbon (HFC) set-aside allowances to general pool production and consumption allowance holders. For the calendar year 2026 allocation of HFC allowances, the EPA withheld a limited number of allowances from all general pool allowance holders. These allowances were set aside to accommodate unforeseen HFC needs for metered dose inhaler (MDI) end users. Entities that use HFCs as a propellant in MDIs had until April 30, 2026, to apply for these allowances, and the EPA received no applications. Accordingly, the EPA allocated all of the set-aside allowances pro rata amongst general pool allowance holders. This notice is announcing that allocation.

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Енергетика та довкілля · 29.05.2026

South Carolina; Approval of State Plan for Control of Emissions From Commercial and Industrial Solid Waste Incineration Units

The Environmental Protection Agency (EPA) is taking final action to approve a state plan submitted by the State of South Carolina, through the South Carolina Department of Health and Environmental Control (SC DHEC) on December 19, 2014, and supplemented on September 17, 2018, June 19, 2019, and November 5, 2019, for implementing and enforcing the Emissions Guidelines (EG) applicable to existing Commercial and Industrial Solid Waste Incineration (CISWI) units. The State plan provides for implementation and enforcement of the EG, as finalized by EPA on June 23, 2016, applicable to existing CISWI units for which construction commenced on or before June 4, 2010, or for which modification or reconstruction commenced after June 4, 2010, but no later than August 7, 2013. The State plan also incorporates the CISWI technical amendments finalized by EPA on April 16, 2019. The South Carolina State plan establishes emission limits, monitoring, operating, recordkeeping, and reporting requirements for affected CISWI units.

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Енергетика та довкілля · 29.05.2026

Partial Approval and Partial Disapproval of Air Quality Implementation Plans; Hawaii; Regional Haze State Implementation Plan for the Second Implementation Period

The Environmental Protection Agency (EPA) is partially approving and partially disapproving the regional haze state implementation plan (SIP) revision submitted by Hawaii on August 2, 2024, under the Clean Air Act (CAA) and the EPA's Regional Haze Rule (RHR) for the program's second implementation period. Hawaii's SIP submission is intended to address the requirement that states must periodically revise their long-term strategies for making reasonable progress towards the national goal of preventing any future, and remedying any existing, anthropogenic impairment of visibility, including regional haze, in mandatory Class I Federal areas. The SIP submission also addresses other applicable requirements for the second implementation period of the regional haze program. The EPA is approving the portions of Hawaii's submission relating to calculations of baseline, current, and natural visibility conditions, progress to date, the uniform rate of progress, reasonably attributable visibility impairment, progress report requirements, and monitoring strategy and other implementation plan requirements. The EPA is disapproving the long-term strategy, including the enforceable shutdown of sever

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Енергетика та довкілля · 29.05.2026

Air Plan Approval; Maryland; Clean Data Determination for the Baltimore, MD Nonattainment Area for the 2015 Ozone National Ambient Air Quality Standards

The Environmental Protection Agency (EPA) is determining that the Baltimore, Maryland (MD) nonattainment area (the Baltimore Area or the Area) has clean data for the 2015 8-hour ozone national ambient air quality standard (NAAQS or standard). This determination is based upon quality-assured, quality-controlled, and certified ambient air monitoring data for the 2022-2024 design value (DV) period showing that the Baltimore Area attained the 2015 ozone NAAQS, with the exclusion of certain monitoring data impacted by exceptional events. The EPA is taking final agency action on portions of three exceptional event (EE) requests submitted by the Maryland Department of the Environment (MDE) on February 2, 2024, on behalf of MD, and concurred on by the EPA on November 12, 2025. As a result of the clean data determination (CDD), under the EPA's Clean Data Policy, the EPA is suspending the requirements for the Baltimore Area to submit attainment demonstrations and associated Reasonably Available Control Measures (RACM), Reasonable Further Progress (RFP) plans, contingency measures, and other planning SIPs related to attainment of the 2015 ozone NAAQS, for as long as the Baltimore Area continu

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Енергетика та довкілля · 29.05.2026

Air Plan Approval; California; San Joaquin Valley Unified Air Pollution Control District; Ventura County Air Pollution Control District; South Coast Air Quality Management District; Oil and Gas Production; Volatile Organic Compounds

The Environmental Protection Agency (EPA) is taking final action to approve revisions to the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD), Ventura County Air Pollution Control District (VCAPCD), and South Coast Air Quality Management District (SCAQMD) portions of the California State Implementation Plan (SIP). These revisions concern emissions of volatile organic compounds (VOCs) from crude oil and natural gas production facilities. We are approving local rules that regulate these emission sources under the Clean Air Act (CAA or "Act").

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Енергетика та довкілля · 29.05.2026

Designation of Areas for Air Quality Planning Purposes; Michigan; Technical Amendment

The Detroit, Michigan area was redesignated to attainment of the 2015 ozone National Ambient Air Quality Standards (NAAQS) on May 19, 2023. On December 5, 2025, the United States Court of Appeals for the Sixth Circuit vacated the Environmental Protection Agency's (EPA's) redesignation of the Detroit area. Therefore, pursuant to the Court's decision, the EPA is making a technical amendment to the part 81 listing for the Detroit area to reflect the area's designation as nonattainment for the 2015 ozone NAAQS, with a classification of Moderate.

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