The Chesapeake Bay is the largest estuary in the United States. To nature lovers, the bay is a national treasure. Its waters are perhaps best known for blue crabs and oysters. For many years, the Chesapeake Bay area benefited from the Conowingo Dam on the Susquehanna River. When the dam opened nearly 100 years ago, it began controlling the power of water to create electricity for northern Maryland. It also trapped sediments before they reached the bay’s waters. While the old dam is still making electricity, it no longer helps the Chesapeake. It cannot. Behind its heavy walls lie 181 million metric tons of black muck pollutants it has collected since the day the dam opened. Now some people fear that the black muck may be a threat to the bay. Recent heavy rains have shown that muck runoff can move along the sides of the dam and pollute the water.
Title: Experts Warn of 'Dead Zone' in Chesapeake Bay
Content: <div id='article-page'><div id='article-content' data-media-url='//news-app-staging.s3.amazonaws.com' data-base-url='//news-app-staging.herokuapp.com' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3479/a0d81dc9-c469-40a6-bb8d-21ada0a06763_hq.wav' data-capture-url='//staging.analytics.lingraphica.com/events/capture_news' data-article-title='Experts Warn of 'Dead Zone' in Chesapeake Bay' data-article-id='3959'><script src='//news-app-staging.herokuapp.com/javascripts/getscripts.js'></script><link rel='stylesheet' href='//news-app-staging.herokuapp.com/stylesheets/article.css' type='text/css' /><div class='article'><p><span data-start-time='0' data-end-time='7667'>The Chesapeake Bay is the largest estuary in the United States.</span> <span data-start-time='7667' data-end-time='13063'>To nature lovers, the bay is a national treasure.</span> <span data-start-time='13063' data-end-time='19854'>Its waters are perhaps best known for blue crabs and oysters.</span> <span data-start-time='19854' data-end-time='31771'>For many years, the Chesapeake Bay area benefited from the Conowingo Dam on the Susquehanna River.</span> <span data-start-time='31771' data-end-time='44375'>When the dam opened nearly 100 years ago, it began controlling the power of water to create electricity for northern Maryland.</span> <span data-start-time='44375' data-end-time='51083'>It also trapped sediments before they reached the bay’s waters.</span> <span data-start-time='51083' data-end-time='58875'>While the old dam is still making electricity, it no longer helps the Chesapeake.</span> <span data-start-time='58875' data-end-time='60667'>It cannot.</span> <span data-start-time='60667' data-end-time='76438'>Behind its heavy walls lie 181 million metric tons of black muck pollutants it has collected since the day the dam opened.</span> <span data-start-time='76438' data-end-time='83833'>Now some people fear that the black muck may be a threat to the bay.</span> <span data-start-time='83833' data-end-time='93854'>Recent heavy rains have shown that muck runoff can move along the sides of the dam and pollute the water.</span> </p></div><div class='control-buttons-sticky' style='display:none;'><div class='control-buttons'><button title='Back' class='back' disabled='disabled'></button><button title='Play' class='play' disabled='disabled'></button><button title='Pause' class='pause' style='display:none;'></button><button title='Forward' class='forward' disabled='disabled'></button><button class='finished-reading' style='display:none;'>Done</button></div></div></div><div id='article-media'><div id='media-image'><img src='https://news-app-production.s3.amazonaws.com/articles/3479/0111DA31-E1D6-4CD9-B575-C207A9603B1F_cx0_cy8_cw0_w1023_r1_s.jpg'/></div></div><div id='question-content' style='display:none;'><div class='sentence_completion_question question-container' data-question-id=13219 data-hint-location='44375' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3479/it_also_trapped_sediments_before_they_reached_the_bays__blank_.wav'>It also trapped sediments before they reached the bays <span class='blank'>waters</span>.</div><div class='choices' data-correct-choice='waters'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3479/limits.wav'><span>limits</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3479/clothing.wav'><span>clothing</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3479/shoes.wav'><span>shoes</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3479/waters.wav'><span>waters</span></div></div></div><div class='multiple_choice_question question-container' data-question-id=13220 data-hint-location='13063' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3479/its_waters_are_perhaps_best_known_for_blue_crabs_and_what.wav'>Its waters are perhaps best known for blue crabs and what?</div><div class='choices' data-correct-choice='oysters'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3479/dogs.wav'><span>dogs</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3479/seals.wav'><span>seals</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3479/oysters.wav'><span>oysters</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3479/whales.wav'><span>whales</span></div></div></div><div class='vocabulary_question question-container' data-question-id=13221 data-hint-location='0' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3479/what_is_an_estuary.wav'>What is an estuary?</div><div class='choices' data-correct-choice='an area where a river flows into the sea'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3479/an_area_where_a_river_flows_into_the_sea.wav'><span>an area where a river flows into the sea</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3479/an_imaginative_element.wav'><span>an imaginative element</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3479/an_iphone_app.wav'><span>an iPhone app</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3479/an_appetizer.wav'><span>an appetizer</span></div></div></div><div class='question-buttons'><button class='skip-button'></button><button class='hint-button'></button><button class='speak-button'></button></div></div></div>
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