{
"id": 4179,
"url": "https://svs.gsfc.nasa.gov/4179/",
"page_type": "Visualization",
"title": "US Air Quality",
"description": "Anyone living in the U.S. for the past decade may have noticed a change in the air. The change is apparent in NASA satellite images that demonstrate the country's reduction of air pollution, or more specifically, nitrogen dioxide.Nitrogen dioxide can impact the respiratory system, and it also contributes to the formation of other pollutants including ground-level ozone and particulates. The gas is produced primarily during the combustion of gasoline in vehicle engines and coal in power plants. Air pollution has decreased even though population and the number of cars on the roads have increased. The shift is the result of regulations, technology improvements and economic changes, scientists say.This visualization shows tropospheric column concentrations of nitrogen dioxide as detected by the Ozone Monitoring Instrument on NASA's Aura satellite, averaged yearly from 2005-2011. Blue and green denote lower concentrations and orange and red areas denote higher concentrations, ranging from 1e+15 to 5e+15 molecules per square centimeter, respectively. || ",
"release_date": "2014-06-23T00:00:00-04:00",
"update_date": "2023-05-03T13:50:48.994644-04:00",
"main_image": {
"id": 454338,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/no2_US.0001_print.jpg",
"filename": "no2_US.0001_print.jpg",
"media_type": "Image",
"alt_text": "Nitrogen dioxide levels for the continental United States.",
"width": 1024,
"height": 576,
"pixels": 589824
},
"main_video": null,
"main_credits": {
"Visualizations by": [
{
"name": "Trent L. Schindler",
"employer": "USRA"
}
]
},
"progress": "Complete",
"media_groups": [
{
"id": 340958,
"url": "https://svs.gsfc.nasa.gov/4179/#media_group_340958",
"widget": "Basic text with HTML",
"title": "",
"caption": "",
"description": "Anyone living in the U.S. for the past decade may have noticed a change in the air. The change is apparent in NASA satellite images that demonstrate the country's reduction of air pollution, or more specifically, nitrogen dioxide.
Nitrogen dioxide can impact the respiratory system, and it also contributes to the formation of other pollutants including ground-level ozone and particulates. The gas is produced primarily during the combustion of gasoline in vehicle engines and coal in power plants. Air pollution has decreased even though population and the number of cars on the roads have increased. The shift is the result of regulations, technology improvements and economic changes, scientists say.
This visualization shows tropospheric column concentrations of nitrogen dioxide as detected by the Ozone Monitoring Instrument on NASA's Aura satellite, averaged yearly from 2005-2011. Blue and green denote lower concentrations and orange and red areas denote higher concentrations, ranging from 1e+15 to 5e+15 molecules per square centimeter, respectively.",
"items": [],
"extra_data": {}
},
{
"id": 340959,
"url": "https://svs.gsfc.nasa.gov/4179/#media_group_340959",
"widget": "Video player",
"title": "",
"caption": "",
"description": "Nitrogen dioxide levels for the continental United States.",
"items": [
{
"id": 291724,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454338,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/no2_US.0001_print.jpg",
"filename": "no2_US.0001_print.jpg",
"media_type": "Image",
"alt_text": "Nitrogen dioxide levels for the continental United States.",
"width": 1024,
"height": 576,
"pixels": 589824
}
},
{
"id": 291725,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454339,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/no2_US.0001_searchweb.png",
"filename": "no2_US.0001_searchweb.png",
"media_type": "Image",
"alt_text": "Nitrogen dioxide levels for the continental United States.",
"width": 320,
"height": 180,
"pixels": 57600
}
},
{
"id": 291726,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454340,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/no2_US.0001_web.png",
"filename": "no2_US.0001_web.png",
"media_type": "Image",
"alt_text": "Nitrogen dioxide levels for the continental United States.",
"width": 320,
"height": 180,
"pixels": 57600
}
},
{
"id": 291727,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454341,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/no2_US.0001_thm.png",
"filename": "no2_US.0001_thm.png",
"media_type": "Image",
"alt_text": "Nitrogen dioxide levels for the continental United States.",
"width": 80,
"height": 40,
"pixels": 3200
}
},
{
"id": 291720,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454334,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/frames/1920x1080_16x9_30p/US_no_states/",
"filename": "US_no_states",
"media_type": "Frames",
"alt_text": "Nitrogen dioxide levels for the continental United States.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291721,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454335,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/frames/1920x1080_16x9_30p/US_full/",
"filename": "US_full",
"media_type": "Frames",
"alt_text": "Nitrogen dioxide levels for the continental United States.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291722,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454336,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/frames/1920x1080_16x9_30p/US_full_no_roads_states/",
"filename": "US_full_no_roads_states",
"media_type": "Frames",
"alt_text": "Nitrogen dioxide levels for the continental United States.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291723,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454337,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/frames/1920x1080_16x9_30p/US_no_roads/",
"filename": "US_no_roads",
"media_type": "Frames",
"alt_text": "Nitrogen dioxide levels for the continental United States.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291728,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454333,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/no2_US_1080p30.mp4",
"filename": "no2_US_1080p30.mp4",
"media_type": "Movie",
"alt_text": "Nitrogen dioxide levels for the continental United States.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291729,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454332,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/no2_US_1080p30.webm",
"filename": "no2_US_1080p30.webm",
"media_type": "Movie",
"alt_text": "Nitrogen dioxide levels for the continental United States.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
}
],
"extra_data": {}
},
{
"id": 340960,
"url": "https://svs.gsfc.nasa.gov/4179/#media_group_340960",
"widget": "Video player",
"title": "",
"caption": "",
"description": "Nitrogen dioxide levels over Northeast United States.",
"items": [
{
"id": 291734,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454348,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/no2_northeast.0001_print.jpg",
"filename": "no2_northeast.0001_print.jpg",
"media_type": "Image",
"alt_text": "Nitrogen dioxide levels over Northeast United States.",
"width": 1024,
"height": 576,
"pixels": 589824
}
},
{
"id": 291730,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454344,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/frames/1920x1080_16x9_30p/northeast_no_states/",
"filename": "northeast_no_states",
"media_type": "Frames",
"alt_text": "Nitrogen dioxide levels over Northeast United States.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291731,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454345,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/frames/1920x1080_16x9_30p/northeast_full/",
"filename": "northeast_full",
"media_type": "Frames",
"alt_text": "Nitrogen dioxide levels over Northeast United States.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291732,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454346,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/frames/1920x1080_16x9_30p/northeast_no_roads_states/",
"filename": "northeast_no_roads_states",
"media_type": "Frames",
"alt_text": "Nitrogen dioxide levels over Northeast United States.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291733,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454347,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/frames/1920x1080_16x9_30p/northeast_no_roads/",
"filename": "northeast_no_roads",
"media_type": "Frames",
"alt_text": "Nitrogen dioxide levels over Northeast United States.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291735,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454343,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/no2_northeast_1080p30.mp4",
"filename": "no2_northeast_1080p30.mp4",
"media_type": "Movie",
"alt_text": "Nitrogen dioxide levels over Northeast United States.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291736,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454342,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/no2_northeast_1080p30.webm",
"filename": "no2_northeast_1080p30.webm",
"media_type": "Movie",
"alt_text": "Nitrogen dioxide levels over Northeast United States.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
}
],
"extra_data": {}
},
{
"id": 340961,
"url": "https://svs.gsfc.nasa.gov/4179/#media_group_340961",
"widget": "Video player",
"title": "",
"caption": "",
"description": "Nitrogen dioxide levels over the northeastern corridor.",
"items": [
{
"id": 291741,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454354,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/no2_NE_corridor.0001_print.jpg",
"filename": "no2_NE_corridor.0001_print.jpg",
"media_type": "Image",
"alt_text": "Nitrogen dioxide levels over the northeastern corridor.",
"width": 1024,
"height": 576,
"pixels": 589824
}
},
{
"id": 291737,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454350,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/frames/1920x1080_16x9_30p/NE_corridor_no_roads/",
"filename": "NE_corridor_no_roads",
"media_type": "Frames",
"alt_text": "Nitrogen dioxide levels over the northeastern corridor.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291738,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454351,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/frames/1920x1080_16x9_30p/NE_corridor_full/",
"filename": "NE_corridor_full",
"media_type": "Frames",
"alt_text": "Nitrogen dioxide levels over the northeastern corridor.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291739,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454352,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/frames/1920x1080_16x9_30p/NE_corridor_no_roads_states/",
"filename": "NE_corridor_no_roads_states",
"media_type": "Frames",
"alt_text": "Nitrogen dioxide levels over the northeastern corridor.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291740,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454353,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/frames/1920x1080_16x9_30p/NE_corridor_no_states/",
"filename": "NE_corridor_no_states",
"media_type": "Frames",
"alt_text": "Nitrogen dioxide levels over the northeastern corridor.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291742,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454349,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/no2_NE_corridor_1080p30.mp4",
"filename": "no2_NE_corridor_1080p30.mp4",
"media_type": "Movie",
"alt_text": "Nitrogen dioxide levels over the northeastern corridor.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291743,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454355,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/no2_NE_corridor_1080p30.webm",
"filename": "no2_NE_corridor_1080p30.webm",
"media_type": "Movie",
"alt_text": "Nitrogen dioxide levels over the northeastern corridor.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
}
],
"extra_data": {}
},
{
"id": 340962,
"url": "https://svs.gsfc.nasa.gov/4179/#media_group_340962",
"widget": "Video player",
"title": "",
"caption": "",
"description": "Nitrogen dioxide levels over Ohio and the surrounding states.",
"items": [
{
"id": 291748,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454361,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/no2_ohio_river_valley.0001_print.jpg",
"filename": "no2_ohio_river_valley.0001_print.jpg",
"media_type": "Image",
"alt_text": "Nitrogen dioxide levels over Ohio and the surrounding states.",
"width": 1024,
"height": 576,
"pixels": 589824
}
},
{
"id": 291744,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454357,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/frames/1920x1080_16x9_30p/ohio_river_valley_no_roads_states/",
"filename": "ohio_river_valley_no_roads_states",
"media_type": "Frames",
"alt_text": "Nitrogen dioxide levels over Ohio and the surrounding states.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291745,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454358,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/frames/1920x1080_16x9_30p/ohio_river_valley_full/",
"filename": "ohio_river_valley_full",
"media_type": "Frames",
"alt_text": "Nitrogen dioxide levels over Ohio and the surrounding states.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291746,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454359,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/frames/1920x1080_16x9_30p/ohio_river_valley_no_states/",
"filename": "ohio_river_valley_no_states",
"media_type": "Frames",
"alt_text": "Nitrogen dioxide levels over Ohio and the surrounding states.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291747,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454360,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/frames/1920x1080_16x9_30p/ohio_river_valley_no_roads/",
"filename": "ohio_river_valley_no_roads",
"media_type": "Frames",
"alt_text": "Nitrogen dioxide levels over Ohio and the surrounding states.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291749,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454356,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/no2_ohio_river_valley_1080p30.mp4",
"filename": "no2_ohio_river_valley_1080p30.mp4",
"media_type": "Movie",
"alt_text": "Nitrogen dioxide levels over Ohio and the surrounding states.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 291750,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454362,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/no2_ohio_river_valley_1080p30.webm",
"filename": "no2_ohio_river_valley_1080p30.webm",
"media_type": "Movie",
"alt_text": "Nitrogen dioxide levels over Ohio and the surrounding states.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
}
],
"extra_data": {}
},
{
"id": 340963,
"url": "https://svs.gsfc.nasa.gov/4179/#media_group_340963",
"widget": "Single image",
"title": "",
"caption": "",
"description": "Nitrogen dioxide color bar",
"items": [
{
"id": 291751,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 454363,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004179/no2_colorbar.png",
"filename": "no2_colorbar.png",
"media_type": "Image",
"alt_text": "Nitrogen dioxide color bar",
"width": 1200,
"height": 250,
"pixels": 300000
}
}
],
"extra_data": {}
},
{
"id": 340964,
"url": "https://svs.gsfc.nasa.gov/4179/#media_group_340964",
"widget": "Basic text",
"title": "For More Information",
"caption": "",
"description": "See [NASA.gov](https://www.nasa.gov/content/goddard/new-nasa-images-highlight-us-air-quality-improvement/)",
"items": [],
"extra_data": {}
}
],
"studio": "svs",
"funding_sources": [
"ESE"
],
"credits": [
{
"role": "Animator",
"people": [
{
"name": "Trent L. Schindler",
"employer": "USRA"
}
]
},
{
"role": "Producer",
"people": [
{
"name": "Kayvon Sharghi",
"employer": "USRA"
}
]
},
{
"role": "Scientist",
"people": [
{
"name": "Bryan Duncan",
"employer": "NASA/GSFC"
},
{
"name": "Lok Lamsal",
"employer": "USRA"
},
{
"name": "Yasuko Yoshida",
"employer": "SSAI"
}
]
},
{
"role": "Writer",
"people": [
{
"name": "Kathryn Hansen",
"employer": "SSAI"
}
]
},
{
"role": "Project support",
"people": [
{
"name": "Laurence Schuler",
"employer": "ADNET Systems, Inc."
},
{
"name": "Ian Jones",
"employer": "ADNET Systems, Inc."
}
]
}
],
"missions": [],
"series": [],
"tapes": [],
"papers": [],
"datasets": [
{
"name": "",
"common_name": "",
"platform": "Aura",
"sensor": "OMI",
"type": "Other",
"organizations": [],
"description": "",
"credit": "",
"url": "",
"date_range": null
}
],
"nasa_science_categories": [
"Earth"
],
"keywords": [],
"recommended_pages": [],
"related": [
{
"id": 4412,
"url": "https://svs.gsfc.nasa.gov/4412/",
"page_type": "Visualization",
"title": "NASA Images Show Human Fingerprint on Global Air Quality – Release Materials",
"description": "This video provides an overview of the study findings. An HD version of this video is available here: Human Fingerprint on Global Air Quality || 12096-MASTER_appletv_print.jpg (1024x576) [139.8 KB] || 12096-MASTER_appletv.m4v (1280x720) [60.8 MB] || 12096-MASTER_appletv.webm (1280x720) [13.0 MB] || ",
"release_date": "2015-12-17T00:00:00-05:00",
"update_date": "2025-02-02T00:08:09.068083-05:00",
"main_image": {
"id": 436910,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004400/a004412/global_abs_2005_print.jpg",
"filename": "global_abs_2005_print.jpg",
"media_type": "Image",
"alt_text": "This global map shows the concentration of nitrogen dioxide in the atmosphere as detected by the Ozone Monitoring Instrument aboard the Aura satellite, averaged over 2005.",
"width": 1024,
"height": 576,
"pixels": 589824
}
},
{
"id": 12076,
"url": "https://svs.gsfc.nasa.gov/12076/",
"page_type": "Produced Video",
"title": "Seeing Trends In Air Pollution",
"description": "New NASA satellite maps show the human impact on global air quality. || C-1920.jpg (1920x1080) [389.1 KB] || C-1280.jpg (1280x720) [232.7 KB] || C-1024.jpg (1024x576) [165.1 KB] || C-1024_print.jpg (1024x576) [167.0 KB] || C-1024_searchweb.png (320x180) [71.8 KB] || C-1024_web.png (320x180) [71.8 KB] || C-1024_thm.png (80x40) [22.4 KB] || ",
"release_date": "2015-12-15T13:00:00-05:00",
"update_date": "2023-05-03T13:49:02.316310-04:00",
"main_image": {
"id": 436760,
"url": "https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012076/C-1024.jpg",
"filename": "C-1024.jpg",
"media_type": "Image",
"alt_text": "New NASA satellite maps show the human impact on global air quality.",
"width": 1024,
"height": 576,
"pixels": 589824
}
},
{
"id": 12094,
"url": "https://svs.gsfc.nasa.gov/12094/",
"page_type": "Produced Video",
"title": "NASA Images Show Human Fingerprint on Global Air Quality – Release Materials",
"description": "Using new, high-resolution global satellite maps of air quality indicators, NASA scientists tracked air pollution trends over the last decade in various regions and 195 cities around the globe. According to recent NASA research findings, the United States, Europe and Japan have improved air quality thanks to emission control regulations, while China, India and the Middle East, with their fast-growing economies and expanding industry, have seen more air pollution. Scientists examined observations made from 2005 to 2014 by the Ozone Monitoring Instrument aboard NASA's Aura satellite. One of the atmospheric gases the instrument detects is nitrogen dioxide, a yellow-brown gas that is a common emission from cars, power plants and industrial activity. Nitrogen dioxide can quickly transform into ground-level ozone, a major respiratory pollutant in urban smog. Nitrogen dioxide hotspots, used as an indicator of general air quality, occur over most major cities in developed and developing nations.The following visualizations include two types of data. The absolute concentrations show the concentration of tropospheric nitrogen dioxide, with blue and green colors denoting lower concentrations and orange and red areas indicating higher concentrations. The second type of data is the trend data from 2005 to 2014, which shows the observed change in concentration over the ten-year period. Blue indicated an observed decrease in nitrogen dioxide, and orange indicates an observed increase. Please note that the range on the color bars (text is in white) changes from location to location in order to highlight features seen in the different geographic regions. || ",
"release_date": "2015-12-14T13:00:00-05:00",
"update_date": "2023-05-03T13:49:02.883452-04:00",
"main_image": {
"id": 436878,
"url": "https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012094/12096-MASTER_appletv_print.jpg",
"filename": "12096-MASTER_appletv_print.jpg",
"media_type": "Image",
"alt_text": "This video provides an overview of the study findings. An HD version of this video is available here: Human Fingerprint on Global Air Quality",
"width": 1024,
"height": 576,
"pixels": 589824
}
},
{
"id": 12096,
"url": "https://svs.gsfc.nasa.gov/12096/",
"page_type": "Produced Video",
"title": "Human Fingerprint on Global Air Quality",
"description": "For complete transcript, click here. || NO2_poster_frame_print.jpg (1024x576) [145.6 KB] || NO2_poster_frame_searchweb.png (320x180) [83.9 KB] || NO2_poster_frame_web.png (320x180) [83.9 KB] || NO2_poster_frame_thm.png (80x40) [14.0 KB] || 12096-MASTER_appletv.m4v (1280x720) [60.8 MB] || 12096-MASTER_prores.webm (1280x720) [12.6 MB] || NO2_poster_frame.tif (1920x1080) [6.0 MB] || 12096-MASTER_appletv_subtitles.m4v (1280x720) [60.8 MB] || 12096-MASTER_ipod_sm.mp4 (320x240) [22.1 MB] || NO2_12.en_US.srt [2.4 KB] || NO2_12.en_US.vtt [2.4 KB] || 12096-MASTER.mov (1920x1080) [3.4 GB] || 12096-MASTER_prores.mov (1280x720) [1.7 GB] || 12096-MASTER.mpeg (1280x720) [421.6 MB] || ",
"release_date": "2015-12-14T13:00:00-05:00",
"update_date": "2023-05-03T13:49:03.008132-04:00",
"main_image": {
"id": 436884,
"url": "https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012096/NO2_poster_frame_print.jpg",
"filename": "NO2_poster_frame_print.jpg",
"media_type": "Image",
"alt_text": "For complete transcript, click here.",
"width": 1024,
"height": 576,
"pixels": 589824
}
}
],
"sources": [],
"products": [
{
"id": 11572,
"url": "https://svs.gsfc.nasa.gov/11572/",
"page_type": "Produced Video",
"title": "Nitrogen Dioxide Reduction Across the United States",
"description": "Anyone living in the U.S. for the past decade may have noticed a change in the air. The change is apparent in NASA satellite images that demonstrate the country's reduction of air pollution, or more specifically, nitrogen dioxide.Nitrogen dioxide can impact the respiratory system, and it also contributes to the formation of other pollutants including ground-level ozone and particulates. The gas is produced primarily during the combustion of gasoline in vehicle engines and coal in power plants. Air pollution has decreased even though population and the number of cars on the roads have increased. The shift is the result of regulations, technology improvements and economic changes, scientists say.This visualization shows tropospheric column concentrations of nitrogen dioxide as detected by the Ozone Monitoring Instrument on NASA's Aura satellite, averaged yearly from 2005-2011. Blue and green denote lower concentrations and orange and red areas denote higher concentrations, ranging from 1e+15 to 5e+15 molecules per square centimeter, respectively. || ",
"release_date": "2014-06-26T06:00:00-04:00",
"update_date": "2023-05-03T13:50:47.651461-04:00",
"main_image": {
"id": 453904,
"url": "https://svs.gsfc.nasa.gov/vis/a010000/a011500/a011572/US_full_no_roads_states-1920-6000002_print.jpg",
"filename": "US_full_no_roads_states-1920-6000002_print.jpg",
"media_type": "Image",
"alt_text": "This visualization shows nitrogen dioxide data only. ",
"width": 1024,
"height": 576,
"pixels": 589824
}
}
],
"newer_versions": [],
"older_versions": [],
"alternate_versions": []
}