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style="background-image:url(/sites/default/files/styles/hero/public/images/banners/2022-12/new-crop-luis-poletti-th4bqV0PQpI-unsplash_1%5B1%5D.jpg?h=63cb00fe&itok=8_NUv5IK)"> <div class="grid-container"> <div class="usa-hero__callout usa-dark-background"> <h2 class="usa-hero__heading"> EPA Environmental Topics </h2> <p>EPA's environmental topics guides you to the most popular pages in your topic of interest.</p> <p>Find EPA Articles and News Releases related to popular topics.</p> <p>Search the <a href="/topics-epa-web"><strong>A-Z Topic Index</strong></a> for specific terms.</p> </div> </div> </section> </li> </ul> <div class="hero-slideshow__nav"> <div class="l-constrain js-hero-slideshow__nav"><button type="button" class="hero-slideshow__nav-button">1</button></div> </div> </div> <div> <div > <div class="box box--special"> <div class="box__content"> <div> </div> <ul class="list list--pipeline"> <li><a href="https://espanol.epa.gov/" title="Spanish">Español</a></li> <li><a href="/lep/arabic" id="arabicLink" title="Arabic">عربى</a> </li> <li><a href="/lep/simplified-chinese" title="simplified Chinese">中文: 简体版</a></li> <li><a href="/lep/traditional-chinese" title="traditional Chinese">中文: 繁體版</a></li> <li><a href="/lep/sante-ak-anviwonman-enfomasyon-kreyol-ayisyen" title="Haitian Creole">Kreyòl ayisyen</a></li> <li><a href="/lep/korean" title="Korean">한국어</a></li> <li><a href="/lep/saude-e-informacoes-ambientais-em-portugues" title="Portuguese">Português</a></li> <li><a href="/lep/russian" title="Russian">Pусский</a></li> <li><a href="/lep/tagalog" title="Tagalog">Tagalog</a></li> <li><a href="/lep/vietnamese" title="Vietnamese">Tiếng Việt</a></li> </ul> </div> </div> </div> </div> <div class="usa-section"> <div class="l-constrain"> <div class="l-grid l-grid--3-col l-column-layout"> <div> <figure class="figure figure--small is-centered"> <div class="figure__media"> <img loading="eager" srcset="/system/files/styles/small/private/images/2022-08/chuttersnap-9AqIdzEc9pY-unsplash_air.jpg?itok=hEztXkah 320w, /system/files/styles/medium/private/images/2022-08/chuttersnap-9AqIdzEc9pY-unsplash_air.jpg?itok=ueCZVaaW 640w" sizes="(max-width: 320px) calc(100vw - 2rem), 320px" width="320" height="213" src="/system/files/styles/small/private/images/2022-08/chuttersnap-9AqIdzEc9pY-unsplash_air.jpg?itok=hEztXkah" alt="Air Category (image of sky and clouds)"> </div> </figure> <h2>Air</h2> <ul> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="6f00e04f-78fb-4e10-ae0d-5df188ec4bf2" href="/acidrain">Acid Rain</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="2392bc6f-6bca-43ca-a676-dc9fdad766dd" href="/criteria-air-pollutants">Criteria (NAAQS) Air Pollutants</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="83dbc1e6-fb3c-4765-9265-d7cd1a454be6" href="/pm-pollution">Particulate Matter (PM)</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="49112e3c-9401-44f2-81da-709690bf7cc7" href="/ghgemissions">Greenhouse Gas (GHG) Emissions</a></li> </ul> <p><a class="usa-button" data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="35050f21-ed45-4012-8ef3-394a1f6a1202" href="/environmental-topics/air-topics">Air Topics</a></p> </div> <div> <figure class="figure figure--small is-centered"> <div class="figure__media"> <img loading="eager" srcset="/system/files/styles/small/private/images/2022-08/hans-reniers-lQGJCMY5qcM-unsplash_chemicals.jpg?itok=rgbq30EN 320w, /system/files/styles/medium/private/images/2022-08/hans-reniers-lQGJCMY5qcM-unsplash_chemicals.jpg?itok=g09Ux6NI 640w" sizes="(max-width: 320px) calc(100vw - 2rem), 320px" width="320" height="213" src="/system/files/styles/small/private/images/2022-08/hans-reniers-lQGJCMY5qcM-unsplash_chemicals.jpg?itok=rgbq30EN" alt="Chemicals and Toxics Category"> </div> </figure> <h2>Chemicals, Pesticides, and Toxics</h2> <ul> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="1f5964fc-6893-496d-ac7d-f3ccce1c8c13" href="/chemicals-under-tsca">Chemicals under the Toxic Substances Control Act (TSCA)</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="5edf84d8-ab39-4030-9a85-cb7c67b6aee1" href="/formaldehyde">Formaldehyde</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="8cf5f00f-6853-4056-9573-799a6ef3a84a" href="/assessing-and-managing-chemicals-under-tsca">Managing Chemical Risks</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="2b0a30d3-b55d-477d-abf7-37587f33c211" href="/pfas">Per- and Polyfluoroalkyl Substances (PFAS)</a></li> </ul> <p><a class="usa-button" data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="3e90722e-c52f-4701-9d4f-e1dd92e6eb7a" href="/environmental-topics/chemicals-pesticides-and-toxics-topics">Chemicals, Pesticides, and Toxics Topics</a></p> </div> <div> <figure class="figure figure--small is-centered"> <div class="figure__media"> <img loading="eager" srcset="/system/files/styles/small/private/images/2022-08/geojango-maps-Z8UgB80_46w-unsplash_location.jpg?itok=piXJhNur 320w, /system/files/styles/medium/private/images/2022-08/geojango-maps-Z8UgB80_46w-unsplash_location.jpg?itok=VG3BJKYq 640w" sizes="(max-width: 320px) calc(100vw - 2rem), 320px" width="320" height="213" src="/system/files/styles/small/private/images/2022-08/geojango-maps-Z8UgB80_46w-unsplash_location.jpg?itok=piXJhNur" alt="Location (image of pins on map)"> </div> </figure> <h2 class="box__title">Environmental Information by Location</h2> <ul> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="1c26dc07-cdcc-4e81-9dc1-13734a3776e6" href="/cleanups/cleanups-my-community">Cleanups in My Community</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="b971eacf-722b-4146-ab65-125eee4a8338" href="/environmentaljustice/environmental-justice-your-community">Environmental Justice in Your Community</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="04bc842c-495a-45ff-888c-3582def2a097" href="/radon/epa-maps-radon-zones-and-supporting-documents-state">Radon Zones: Maps and Supporting Documents by State</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="d1079c37-c758-4fa8-ae00-9c19c4f449d8" href="/toxics-release-inventory-tri-program">Toxic Chemical Releases</a></li> </ul> <p><a class="usa-button" data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="32a6c719-7384-4b41-a12a-d117f0411c7f" href="/environmental-topics/environmental-information-by-location">More Location-Specific Info</a></p> </div> </div> </div> </div> <div class="usa-section"> <div class="l-constrain"> <div class="l-grid l-grid--3-col l-column-layout"> <div> <figure class="figure figure--small is-centered"> <div class="figure__media"> <img loading="eager" srcset="/system/files/styles/small/private/images/2022-08/karsten-wurth-ZKWgoRUYuMk-unsplash_greener.jpg?itok=ebARlED4 320w, /system/files/styles/medium/private/images/2022-08/karsten-wurth-ZKWgoRUYuMk-unsplash_greener.jpg?itok=5D1FXywJ 640w" sizes="(max-width: 320px) calc(100vw - 2rem), 320px" width="320" height="213" src="/system/files/styles/small/private/images/2022-08/karsten-wurth-ZKWgoRUYuMk-unsplash_greener.jpg?itok=ebARlED4" alt="Greener Living Category (image of wind farm)"> </div> </figure> <h2>Greener Living</h2> <ul> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="170fad11-a744-48e9-b579-e3552e9f9ce9" href="/energy">Energy and the Environment</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="83336075-7113-4ed1-b941-c93c4098df25" href="/greenerproducts/identify-greener-products-and-services">Greener Products and Services</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="fc0ee9f0-3e74-420d-8426-3b0d8372b710" href="/recycle">Reduce, Reuse, Recycle</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="dbb28d17-0dd9-4b29-99cc-207c778b50b0" href="/sustainability">Sustainability </a></li> </ul> <p><a class="usa-button" data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="0e2076d7-e68b-4045-b078-b43b8fd500a5" href="/environmental-topics/greener-living">Greener Living Topics</a></p> </div> <div> <figure class="figure figure--small is-centered"> <div class="figure__media"> <img loading="eager" srcset="/system/files/styles/small/private/images/2022-08/onlineimageresize_com_cropsincerelymediaUfhZRbjlDusunsplash_health.jpg?itok=R3Yds7u_ 320w, /system/files/styles/medium/private/images/2022-08/onlineimageresize_com_cropsincerelymediaUfhZRbjlDusunsplash_health.jpg?itok=Mgo-2lp8 640w" sizes="(max-width: 320px) calc(100vw - 2rem), 320px" width="320" height="214" src="/system/files/styles/small/private/images/2022-08/onlineimageresize_com_cropsincerelymediaUfhZRbjlDusunsplash_health.jpg?itok=R3Yds7u_" alt="Health Category (image of stay safe words)"> </div> </figure> <h2>Health</h2> <ul> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="99151ca4-8df1-407a-9f4e-ad57b35d4447" href="/environmental-topics/epa-efforts-reduce-exposure-carcinogens-and-prevent-cancer">Cancer</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="3d2334b0-b01d-4a06-8204-c65ed2dc6316" href="/children">Children's Health Protection</a> </li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="4295ae2a-6fc6-400b-ab2f-acfbf13d4019" href="/coronavirus-and-disinfectants">Coronavirus (COVID-19)</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="38fa39f7-7d32-4991-aa6a-4910fdb549d1" href="/endocrine-disruption">Endocrine Disruption</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="ff322bee-aa87-4a25-bede-8ce44fa6a146" href="/risk/human-health-risk-assessment">Human Health Risk Assessment</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="dff2ccd0-5d6d-4147-b300-1c12d86fdc20" href="/safepestcontrol/pesticides-and-food-healthy-sensible-food-practices">Pesticides and Food: Healthy, Sensible Food Practices</a></li> </ul> <p><a class="usa-button" data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="7cd2f165-9585-44bc-80cb-efc21c566f10" href="/environmental-topics/health-topics">Health Topics</a></p> </div> <div> <figure class="figure figure--small is-centered"> <div class="figure__media"> <img loading="eager" srcset="/system/files/styles/small/private/images/2022-08/vianet-ramos-AISJu_WYjPM-unsplash_waste.jpg?itok=5XEIP-gi 320w, /system/files/styles/medium/private/images/2022-08/vianet-ramos-AISJu_WYjPM-unsplash_waste.jpg?itok=elB-08gL 640w" sizes="(max-width: 320px) calc(100vw - 2rem), 320px" width="320" height="213" src="/system/files/styles/small/private/images/2022-08/vianet-ramos-AISJu_WYjPM-unsplash_waste.jpg?itok=5XEIP-gi" alt="Land Waste and Cleanup Category "> </div> </figure> <h2>Land, Waste, and Cleanup</h2> <ul> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="1302045a-9771-4777-b2b2-4d9ae8d481f8" href="/cleanups">Cleanups</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="a977bc51-f7dd-4066-8ebb-142e19cf734a" href="/hw/household-hazardous-waste-hhw">Household Hazardous Waste (HHW)</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="0a64ac62-34a3-4564-aaf8-8f16e85235c0" href="/landfills">Landfills</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="bfdb23c8-7a16-49da-9fe3-c5587f0ae51d" href="/hw">Learn About Hazardous Waste</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="fc0ee9f0-3e74-420d-8426-3b0d8372b710" href="/recycle">Recycling</a></li> </ul> <p><a class="usa-button" data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="9b2c5afe-874b-49a7-8666-7a4409c6514f" href="/environmental-topics/land-waste-and-cleanup-topics">Land, Waste, and Cleanup Topics</a></p> </div> </div> </div> </div> <div class="usa-section"> <div class="l-constrain"> <div class="l-grid l-grid--3-col l-column-layout"> <div> <figure class="figure figure--small is-centered"> <div class="figure__media"> <img loading="eager" srcset="/system/files/styles/small/private/images/2022-08/julia-koblitz-RlOAwXt2fEA-unsplash_science.jpg?itok=2QPytW0A 320w, /system/files/styles/medium/private/images/2022-08/julia-koblitz-RlOAwXt2fEA-unsplash_science.jpg?itok=xQHHoXdD 640w" sizes="(max-width: 320px) calc(100vw - 2rem), 320px" width="320" height="213" src="/system/files/styles/small/private/images/2022-08/julia-koblitz-RlOAwXt2fEA-unsplash_science.jpg?itok=2QPytW0A" alt="Science Category"> </div> </figure> <h2 class="box__title">Science</h2> <ul> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="9f17aa0a-ed87-48e3-91a5-c3edb1bc713c" href="/participatory-science">Citizen Science for Environmental Protection</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="5a3611e3-6993-4525-bfab-47d7b4ac12ec" href="/climate-indicators">Climate Change Indicators</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="09fa112f-7765-4563-95bc-68cfad4b0fa7" href="/measurements-modeling">Environmental Measurements and Modeling</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="55adf820-0bc1-4bc7-8c12-2c648d8a7066" href="/research/epa-science-models-and-research-tools-smart-search">EPA Science Models and Research Tools (SMaRT) Search</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="0f809f9e-3798-4d97-8adb-1e88851f501b" href="/research">Research at EPA</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="3e0d1523-8e5b-4dbc-a1fa-49b4f75f4673" href="/research-grants">Research Grants</a></li> </ul> <p><a class="usa-button" data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="dbdd6e6b-895a-4122-a631-e1c67b21e27e" href="/environmental-topics/science-topics">More Science Topics</a></p> </div> <div> <figure class="figure figure--small is-centered"> <div class="figure__media"> <img loading="eager" srcset="/system/files/styles/small/private/images/2022-06/jeremy-bishop-dvACrXUExLs-unsplash.jpg?itok=0EVr_6Cw 320w, /system/files/styles/medium/private/images/2022-06/jeremy-bishop-dvACrXUExLs-unsplash.jpg?itok=MhcoIn5g 640w" sizes="(max-width: 320px) calc(100vw - 2rem), 320px" width="320" height="213" src="/system/files/styles/small/private/images/2022-06/jeremy-bishop-dvACrXUExLs-unsplash.jpg?itok=0EVr_6Cw" alt="Water"> </div> </figure> <h2>Water</h2> <ul> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="87a4b260-adf0-49eb-93e7-934f5b63f4d1" href="/ground-water-and-drinking-water">Drinking Water Basics</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" 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Lead can be present in drinking water without any noticeable changes in color or odor. It is the responsibility of private well owners to test their water for lead and to take appropriate measures to mitigate exposure. </p> <ul class="usa-collection__meta" aria-label="More information"> <li class="usa-collection__meta-item"><strong>Date:</strong> <time datetime="2024-10-28T12:00:00Z">October 28, 2024</time> </li> <li class="usa-collection__meta-item"><strong>By:</strong> Sara Eaves</li> </ul> </div> </li> <li class="usa-collection__item"> <img class="usa-collection__img" src="/system/files/styles/thumbnail/private/images/2024-09/pict_w_regan.jpg?itok=0qUFd9Yl" alt="Hartley received her North Carolina Environmental Education certificate in 2018 from Michael Regan, current EPA Administrator, and former North Carolina Department of Environmental Quality Secretary."> <div class="usa-collection__body" lang="en"> <h3 class="usa-collection__heading"> <a class="usa-link" href="/perspectives/teacher-author-how-climate-literacy-guided-my-career"> From Teacher to Author: How Climate Literacy Guided My Career  </a> </h3> <p class="usa-collection__description"> Early in my career I realized that shifting the mindset of students in my classroom, especially on a social norm that valued consumerism over environmentalism, was a challenge with context and nuance far beyond my classroom walls. </p> <ul class="usa-collection__meta" aria-label="More information"> <li class="usa-collection__meta-item"><strong>Date:</strong> <time datetime="2024-09-25T12:00:00Z">September 25, 2024</time> </li> <li class="usa-collection__meta-item"><strong>By:</strong> Jenna Hartley</li> </ul> </div> </li> <li class="usa-collection__item"> <img class="usa-collection__img" src="/system/files/styles/thumbnail/private/images/2024-07/capre-reinga.jpg?itok=jgXsFgfl" alt="Cape Rēinga in New Zealand"> <div class="usa-collection__body" lang="en"> <h3 class="usa-collection__heading"> <a class="usa-link" href="/perspectives/why-stories-matter"> Why Stories Matter </a> </h3> <p class="usa-collection__description"> Years spent observing various cultures threaded through multiple languages gave me my biggest gift; I can absorb a person’s voice into my pen and onto their paper. </p> <ul class="usa-collection__meta" aria-label="More information"> <li class="usa-collection__meta-item"><strong>Date:</strong> <time datetime="2024-07-24T12:00:00Z">July 24, 2024</time> </li> <li class="usa-collection__meta-item"><strong>By:</strong> Sukayna Al-Aaraji</li> </ul> </div> </li> </ul> </div> </div> </div> <a class="usa-button" data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="b5a18acd-b224-4c40-b5a3-e68a2d337735" href="/perspectives/search">Read EPA Perspectives</a></div> <div> <p><strong>Recent EPA News Releases:</strong></p> <div data-embed-button="paragraphs" data-entity-label="Paragraphs" data-paragraph-id="ee4c652e-da1a-4a87-86ec-187c08cc0f62" data-paragraph-revision-id="1040" data-langcode="en" data-view-mode="embed" data-entity-embed-display="entity_reference_revisions:entity_reference_revisions_entity_view" data-entity-type="embedded_paragraphs" data-entity-uuid="ee4c652e-da1a-4a87-86ec-187c08cc0f62" data-entity-embed-display-settings="[]" class="embedded-entity"> <div class="view view--dynamic-news-release-list view--display-block_1 js-view-dom-id-9bb3eea9fd8bc82ce977122d5b409de3d5f96774f0bcda417c90af2e10b42dae"> <ul class="usa-collection"> <li class="usa-collection__item"> <div class="usa-collection__body" lang="en"> <h3 class="usa-collection__heading"> <a class="usa-link" href="/newsreleases/california-receive-nearly-12-million-epa-help-businesses-prevent-pollution"> California to Receive Nearly $1.2 Million from EPA to Help Businesses Prevent Pollution </a> </h3> <p class="usa-collection__description"><strong></strong></p> <p class="usa-collection__description"> EPA News Release: California to Receive Nearly $1.2 Million from EPA to Help Businesses Prevent Pollution </p> <ul class="usa-collection__meta" aria-label="More information"> <li class="usa-collection__meta-item"><strong>Release Date:</strong> <time datetime="2024-11-26T12:00:00Z">November 26, 2024</time> </li> </ul> </div> </li> <li class="usa-collection__item"> <div class="usa-collection__body" lang="en"> <h3 class="usa-collection__heading"> <a class="usa-link" href="/newsreleases/epa-announces-over-1-million-grants-help-businesses-nevada-prevent-pollution"> EPA Announces Over $1 Million in Grants to Help Businesses in Nevada Prevent Pollution </a> </h3> <p class="usa-collection__description"><strong></strong></p> <p class="usa-collection__description"> EPA News Release: EPA Announces Over $1 Million in Grants to Help Businesses in Nevada Prevent Pollution </p> <ul class="usa-collection__meta" aria-label="More information"> <li class="usa-collection__meta-item"><strong>Release Date:</strong> <time datetime="2024-11-26T12:00:00Z">November 26, 2024</time> </li> </ul> </div> </li> <li 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