New images captured by NASA show Dallas is among the nation’s hotspots for air pollution, largely driven by the region’s tangle of highways and relentless...
TEMPO will be able to track air pollution at a resolution of just a few square miles, enabling researchers to study the health effects of pollutants and develop air pollution maps by neighborhood,. That can help policymakers better understand disparities in air quality within a community.
Jenny Narvaez, program manager for the North Central Texas Council of Governments, said the maps could help city and transportation planners pinpoint problem areas and identify additional sources of air pollution. The first set of images did not reveal anything particularly surprising for the Dallas region, Narvaez added.“Our cars have gotten significantly cleaner over the years, but they do still emit nitrogen dioxide,” she said.
TEMPO will begin full operations in October. The instrument measures sunlight reflected and scattered off Earth’s surface, clouds and atmosphere, according to NASA. Gases in the atmosphere absorb the sunlight, and the resulting spectra depict concentrations of pollutants. In addition to nitrogen dioxide, the instrument measures ozone, formaldehyde, aerosols, water vapor and several trace gasses.
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