Learn the Issues
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Radiation Emergencies and Preparedness
A nuclear power plant accident, nuclear explosion or a dirty bomb are examples of radiation emergencies. If a radiation emergency occurs, take the following actions to protect yourself, your loved ones and your pets: Get Inside, Stay Inside and Stay Tuned.
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Ozone Layer Protection
Science information about Earth's stratospheric ozone layer protecting humans and earth from the sun's ultraviolet (UV) rays
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Particle Accelerators and Radiation Research
Certain particle accelerators, called colliders, are special machines that can “smash” atoms into pieces using charged particles like protons or electrons. The radioactive material produced can be used for research, medicine, or other applications.
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RadTown Radon: Teacher Information
Learn more about radon with your students! This page provides background information for teachers and parents. Each RadTown activity for the classroom is Common Core State Standard (CCSS) and Next Generation Science Standard (NGSS) aligned.
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General Conformity Training Module 1.4: More Information
Module I provides an overview of the program purpose. 1.4 describes revisions to the General Conformity Regulations, questions and answers guidance documents, and where to find more information.
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Urban River: Merrimack River
Information on the efforts of the US EPA, the Commonwealth of Massachusetts, the municipalities within the Merrimack River and nongovernmental organizations to improve the water quality of the Merrimack River.
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EPA and Federal Agency Websites Related to General Conformity
Web sites of related programs and information from both within EPA and other agencies supporting National Ambient Air Quality Standards.This page lists several programs.
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Air Emissions Modeling
The site documents and makes available the Agency's latest emissions inventory data formated for use in temporal, spatial, and speciation emissions modeling.
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2017 Emissions Modeling Platform Technical Support Document
This document describes how the emission inventories were prepared for air quality modeling by the U.S. Environmental Protection Agency (EPA) for criteria air pollutants to represent the year of 2017
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Method 16C - Total Reduced Sulfur - Real Time Data
CFR Promulgated Test Method 16C Determination of Total Reduced Sulfur Emissions From Stationary Sources
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Method 308 - Methanol Emissions
Promulgated CFR Test Method 308 Procedure for Determination of Methanol Emission from Stationary Sources
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Tribal burn permits on the Nez Perce and Umatilla Reservations
EPA-approved open burning permit programs for the Nez Perce and Umatilla Indian reservations.
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Settlement Concerning the Ward Transformer Superfund Site
Proposed Settlement concerning the Ward Transformer Superfund Site
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EPA Disapproves Colorado’s Regional Haze Plan and Supports State’s Coal Plants
EPA is finalizing the full disapproval of Colorado’s revised 2022 Regional Haze State Implementation Plan (SIP), preventing the premature closure of power plants.
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Lesson Plans, Teacher Guides and Online Environmental Resources for Educators: Climate Change
Climate change-related educational resources for teachers on environmental topics, including lesson plans.
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Is my home unsafe if it contains lead-based paint?
Approximately three-quarters of the nation’s housing built before 1978 contains some lead-based paint. This paint, if properly managed and maintained, poses little risk. If allowed to deteriorate, lead from paint can threaten the health of occupants, especially children under six years old. If families and building owners are aware of…
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Does the Real Estate Notification and Disclosure Rule increase my liability for future lead poisoning on my property?
In some cases, disclosure may actually reduce the owner’s liability since occupants may be able to prevent exposure from the beginning. Under the Real Estate Notification and Disclosure Rule, however, sellers, landlords, or agents who fail to provide the required notices and information are liable for triple the amount of…
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SRF Resource Guide for Wetland Applications
Case studies and best practices to use the CWSRF and DWSRF fund to finance wetland projects
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What costs does EPA incur that must be recovered by the fees under the Fee Rule for the Lead-based Paint Activities and RRP Programs?
The fees recover EPA's costs for processing applications, enforcing program requirements, and administrative activities such as maintenance of the central database and administering certification examinations. Question Number: 23002-33303 Find a printable PDF copy of all frequent questions pertaining to lead .
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Does the Fee Rule for the Lead-based Paint Activities and RRP Programs apply nationwide?
The rule applies only in those states, territories and Tribes without their own authorized lead programs. Currently, EPA implements the Lead-based Paint Activities Program in 11 states and the RRP Program in 35 states. Question Number: 23002-33305 Find a printable PDF copy of all frequent questions pertaining to lead .