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            "id": 5070,
            "url": "https://svs.gsfc.nasa.gov/5070/",
            "result_type": "Visualization",
            "release_date": "2023-02-06T00:00:00-05:00",
            "title": "Nitrogen Dioxide Over the United States, 2005-2022",
            "description": "NO2 over the United States as measured by OMI, with labels || NO2_US_2005-2022.399_print.jpg (1024x576) [171.6 KB] || NO2_US_2005-2022.399_searchweb.png (320x180) [80.6 KB] || NO2_US_2005-2022.399_thm.png (80x40) [5.9 KB] || w_dates (3840x2160) [0 Item(s)] || NO2_US_2005-2022_2160p30.mp4 (3840x2160) [20.0 MB] || NO2_US_2005-2022_2160p30.webm (3840x2160) [2.7 MB] || ",
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            "id": 4959,
            "url": "https://svs.gsfc.nasa.gov/4959/",
            "result_type": "Visualization",
            "release_date": "2021-12-13T00:00:00-05:00",
            "title": "Reduction in Tropospheric NOx and Ozone Corresponding to Worldwide COVID-19 Lockdowns",
            "description": "When the world went into lockdown to slow the spread of COVID-19, air pollution emissions started to rapidly decrease leaving a global atmospheric fingerprint detected by a team of scientists at NASA’s Jet Propulsion Laboratory using satellite measurements. These traces provided an unexpected window into what low-emissions world could look like, thus providing a means for identifying effective environmental policies. While many countries in the last few decades have implemented environmental policies to reduce human health risk from air pollution by controlling emissions, the impacts of those policies have not always been clear. The global lockdowns in response to COVID-19 represent a well-observed “scenario-of-opportunity” that allows us to assess how atmospheric emission and composition responds to reduced human activity. COVID-19 lockdowns effectively showed how reducing NOx emissions affects the global atmosphere. Its identifying signature shows up as in the atmosphere’s altered ability to produce harmful ozone pollution and ozone’s reduced influence on Earth’s heat balance that affects climate. These effects are not uniform across the world and depend on the location and season of the emission reductions.The results of this research indicate that in order to design effective environmental policies which benefit both air quality and climate, decision-makers need to carefully consider the complex relationships between emissions and atmospheric composition. || ",
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            "id": 4835,
            "url": "https://svs.gsfc.nasa.gov/4835/",
            "result_type": "Visualization",
            "release_date": "2020-06-18T00:00:00-04:00",
            "title": "NO<sub>2</sub> Decline Related to Restrictions Due to COVID-19 in South America",
            "description": "On June 1, the World Health Organization noted that Central and South American countries have become “the intense zones” for COVID-19 transmission. The Ozone Monitoring Instrument (OMI) on board NASA’s Aura satellite provides data that indicate that restrictions on human activity have led to about a 36% decrease in NO2 levels in Rio de Janeiro, Brazil, relative to previous years. Other large cities in South America show similar decreases in NO2: 36% in Santiago, Chile; 35% in São Paolo, Brazil; and 40% in Buenos Aires, Argentina. One notable exception is in Lima, Peru, showing a 69% decrease. The large decrease may partly be associated with natural variations in weather that can, for instance, disperse air pollution more quickly. Additional analysis is required to determine the amount of the decrease of NO2 in Lima that is associated with a decrease in human activity. A notable increase in NO2 occurred in northern South America, which is likely associated with increased agricultural burning in 2020 relative to previous years. || ",
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        {
            "id": 31142,
            "url": "https://svs.gsfc.nasa.gov/31142/",
            "result_type": "Hyperwall Visual",
            "release_date": "2020-05-18T00:00:00-04:00",
            "title": "COVID-19: NASA Satellite Data Show Drop in Air Pollution Over U.S.",
            "description": "Tropospheric NO2 Column, March 15-April 15 2015-2019 average vs. 2020, USA regions || 3-regions_1080p.00001_print.jpg (1024x576) [141.7 KB] || 3-regions_1080p.00001_searchweb.png (320x180) [62.9 KB] || 3-regions_1080p.00001_thm.png (80x40) [5.2 KB] || 3-regions_1080p.mp4 (1920x1080) [1.9 MB] || 3-regions_720p.mp4 (1280x720) [1.0 MB] || 3-regions_1080p.webm (1920x1080) [2.3 MB] || 3-regions_2160p.mp4 (3840x2160) [5.6 MB] || ",
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